A sensor bearing housing assembly for use with or integrally formed with a bearing housing. The bearing housing having a base portion defining a footprint, a shaft receiving collar, and a bearing race disposed between the shaft receiving collar and the bearing housing. The sensor bearing housing assembly having a pair of lengthwise sidewalls configured to extend upward from the base portion and an endwise sidewall configured to extend upward from the base portion. The pair of lengthwise sidewalls and the endwise sidewall being joined to form a sensor volume for receiving a sensor therein generally defined within a vertical volume bounded by the footprint of the base portion. The sensor bearing housing assembly having a cutout formed in at least one of the pair of lengthwise sidewalls and the pair of endwise sidewall to permit access to a fastener extending through a mounting hole formed in the base portion.
A power sensor assembly including a sensor system having a sensor component, a circuit system, and a power receptacle system contained within a sensor housing, and further including a first power pod system having one or more power sources configured to output electrical energy, a power supply interface system operably coupled with the one or more power sources, the power supply interface system selectively connectable with the power receptacle system of the sensor system to transfer power from the one or more power sources to the sensor system, and a housing containing the one or more power sources and the power supply interface system, the housing of the first power pod system being separate from the sensor housing.
A blower comprising a blower housing, a blower wheel, and a motor. The blower wheel is within the blower housing and has a plurality of blades. The motor is operatively connected to the blower wheel to rotate the blower wheel about an axis of rotation. The blower housing comprises a wall perpendicular to the axis of rotation. The wall has a static tap hole having a leading edge and a trailing edge. The static tap hole is positioned near an axial side of the blower wheel such that as the blower wheel rotates, any of the blades of the blower wheel passes the leading edge of the static tap hole before passing the trailing edge of the static tap hole. The wall comprises a protrusion protruding axially from the wall and toward the blower wheel. The protrusion is located adjacent the trailing edge of the static tap hole.
F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the like; Balancing
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
A blower fan assembly comprising a scroll housing, a forward curved blower wheel, and a blower motor adapted to rotate the blower wheel about a blower wheel axis. The forward-curved blower wheel comprises a plurality of fan blades circumferentially spaced about the blower wheel axis. Each of the fan blades has a leading edge with a leading edge angle and a trailing edge with a trailing edge angle. The leading edge angle is at least 50° and not more than 80°. The trailing edge angle is at least 5.5° and not more than 18.5°. The outer radius is not more than 4 inches (101.6 mm).
An electric machine including a housing assembly including a first end and a second end, a stator, a rotor, and a fan is provided. The housing assembly includes a terminal box positioned at the first end, an end plate coupled to the terminal box and including a plurality of inlet apertures, and a casing coupled to the end plate and extending toward the second end. The stator is fixedly secured to the housing assembly and positioned within the casing. The rotor is rotatably secured to the housing assembly and positioned within the casing such that the stator and the rotor are separated within the casing by an air gap. The fan is positioned inside the casing and is configured to draw air into the housing assembly through the plurality of inlet apertures.
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
H02K 5/18 - Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
H02K 11/33 - Drive circuits, e.g. power electronics
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
6.
SYSTEMS AND METHODS FOR CONTROLLING INDOOR AIR QUALITY WITH A FLUID MOVING APPARATUS
One aspect of the disclosure includes a fluid moving system. The fluid moving system includes a fluid moving apparatus configured to convey a fluid through a housing from an inlet to an outlet. The fluid moving system includes an active cleaning device configured to neutralize or remove at least a portion of an undesired matter from the fluid conveyed through the housing. The fluid moving system includes an electric motor including a rotor coupled to the fluid moving apparatus and configured to turn the fluid moving apparatus upon application of electric power to a stator of the electric motor. The fluid moving system includes a motor controller communicatively coupled to the electric motor and configured to control at least one of a speed output or a torque output thereof.
F24F 3/16 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by ozonisation
A61L 9/015 - Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
F24F 8/22 - Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
A motor control assembly for an electric motor. The motor control assembly is configured to be coupled to the electric motor, and includes a wireless communication module, an input power connector, and an inverter module. The wireless communication module is configured to receive a wireless signal from a system controller. The input power connector is configured to receive a DC voltage from an external power supply module. The inverter module is coupled to the wireless communication module and the input power connector. The inverter module is configured to convert the DC voltage to an AC voltage to operate the electric motor according to the wireless signal.
A bearing assembly may include an integral sensor module retained within a bore in the bearing housing. The sensor module includes at least one strain gauge oriented to sense a compressive load acting on the bearing housing. The sensor module may be retained within the bore under an axial compressive load. The sensor module may include a power source and a wired or wireless communications module for transmitting information indicative of the compressive load to an external instrument or other system.
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
G01L 1/22 - Measuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
F16C 17/08 - Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep bearings
F16C 33/36 - Rollers; Needles with grooves in the bearing surfaces
F02F 3/08 - Pistons having means for accommodating or controlling heat expansion having expansion-controlling inserts the inserts being ring-shaped
A health monitor circuit for an electric machine is described. The health monitor circuit includes at least one sensor configured to measure a parameter of the electric machine, a communication interface, and a microprocessor coupled to the at least one sensor, the communication interface, and a memory. The microprocessor is configured to periodically collect time samples of the parameter measured by the at least one sensor, transmit factors of the time samples to the memory, and perform a high resolution fast-Fourier transform (FFT) on the factors. The microprocessor is also configured to extrapolate results of the high resolution FFT to a produce a high resolution frequency domain waveform, filter the high resolution frequency domain waveform by a parameter, and transmit, via the communication interface, the filtered frequency domain waveform to a remote system for further processing.
An HVAC system including a multi-capacity compressor, and a control system for the multi-capacity compressor are described herein. The control system includes an AC line voltage source, a variable-voltage variable-frequency drive, and a processor. The AC line voltage source is configured to operate the multi-capacity compressor. The variable-voltage variable-frequency drive is coupled to the AC line voltage source and is configured to operate the multi-capacity compressor at a variable speed. The processor is coupled to the AC line voltage source and the variable-voltage variable-frequency drive, and is configured to selectively couple the AC line voltage source and the variable-voltage variable-frequency drive to the multi-capacity compressor to operate the multi-capacity compressor. The processor is further configured to transmit a capacity control signal to the multi-capacity compressor. The capacity control signal is instructive to operate the multi-capacity compressor in one of a plurality of capacity settings.
A control system is provided for an electric motor configured to drive a fluid moving apparatus to generate a fluid-flow. The control system includes a drive circuit configured to regulate power supplied to a stator of the motor to turn a rotor and generate the fluid-flow, and a processor that computes a value proportional to at least one of a system resistance or a static pressure for the fluid moving apparatus based on a fixed set point for a first control parameter and a feedback parameter. The processor receives a fluid-flow rate demand and computes an operating set point for a second control parameter based on the fluid-flow rate demand and the value proportional to the system resistance or the static pressure. The processor controls the drive circuit based on the operating set point to supply power to the motor and operate the fluid moving apparatus to generate the fluid-flow.
F24F 11/75 - Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity
F24F 11/77 - Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
F04D 27/00 - Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
A dual stage blower assembly includes a first fan configured to rotate about the rotational axis and including a first plurality blades. The first plurality of blades include a plurality of backward curved blades. The dual stage blower assembly also includes a second fan circumscribing the first fan and configured to rotate about the rotational axis. The second fan includes a second plurality of blades, wherein the second plurality of blades include one of a plurality of forward curved blades, a plurality of a radial blades, or a plurality of backward curved blades. At least one motor is coupled to the first fan and the second fan and configured to rotate the first fan and the second fan about the rotational axis.
A centrifugal blower assembly includes a scroll wall and at least one sidewall coupled to the scroll wall such that the scroll wall and the at least one sidewall define a blower chamber and a blower outlet, wherein the at least one sidewall includes an opening defined therethrough. The centrifugal blower assembly also includes an inlet ring coupled to the at least one sidewall proximate the opening. The inlet ring includes a first portion coupled to the at least one sidewall, a second portion extending from the first portion through the opening into the blower chamber, and an inner surface that defines a blower inlet and extends along the first portion and the second portion, wherein the inner surface on the second portion is obliquely oriented with respect to the axis of rotation.
A bearing retainer for use in a bearing is provided. The bearing includes an inner ring, rolling elements and an outer ring. The bearing retainer includes a body. The body defines an inner periphery and an outer periphery of the body. The body further defines a plurality of inner walls. Each inner wall defines an opening extending from the inner periphery to the outer periphery of the body. The plurality of openings is adapted to receive one of the rolling elements. The inner walls are adapted to keep the rolling elements in a spaced apart relationship. Ribs extend inwardly from the inner periphery of the body.
A system for determining operating conditions of a rotating biological contactor includes a sensor including a first end coupleable to the gearbox assembly of the rotating biological contactor at a radial distance from a rotation axis of a rotatable shaft. The rotatable shaft rotates a plurality of media elements about the rotation axis to treat water within a basin of the rotating biological contactor. The sensor also includes a second end coupleable to a brace to prevent rotation of the sensor and the gearbox assembly when the rotatable shaft is rotated. The sensor further includes a body extending between the first end and the second end. The sensor is configured to detect a load on the body when the rotatable shaft is rotated. The system further includes a controller communicatively coupled to the sensor. The controller is configured to determine a torque of the rotatable shaft based on the load detected by the sensor.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01L 3/24 - Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
F16H 57/023 - Mounting or installation of gears or shafts in gearboxes, e.g. methods or means for assembly
G01N 35/04 - Automatic analysis not limited to methods or materials provided for in any single one of groups ; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations - Details of the conveyor system
A health monitor circuit for an electric machine includes a plurality of sensors, a rectifier, a memory device, and a microprocessor. The plurality of sensors includes a current transformer configured to be electromagnetically coupled to an electrical conductor that feeds a stator winding of the electric machine. The rectifier is coupled to the current transformer and is configured to convert an AC signal generated by the current transformer to a DC signal to supply power for the health monitor circuit. The microprocessor is coupled to the memory device and the plurality of sensors. The microprocessor is configured to periodically collect a stator current measurement from the current transformer and write the stator current measurement to the memory device.
H02K 11/20 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
H02M 1/10 - Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
A modular transfer system with a primary flow system and a diverter system that is repositionable along a track system. The primary flow system includes a primary flow belt for conveying an article along a primary flow path from an infeed side of the modular transfer system to a pass-through side of the modular transfer system. The diverter system that is repositionable along the track system between the infeed side and the pass-through side by attachment within one or more channels.
B65G 17/24 - Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of rollers which are moved over a supporting surface by the traction element to effect conveyance of loads or load-carriers
B65G 47/22 - Devices influencing the relative position or the attitude of articles during transit by conveyors
B65G 47/24 - Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
A drive circuit for an electric pump motor is provided. The drive circuit includes an inverter and a contactor. The inverter is configured to supply variable frequency current to the electric motor. The contactor is configured to supply the line frequency current to the electric motor.
H02P 27/04 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
H02P 1/44 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor by phase-splitting with a capacitor
H02P 25/16 - Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
H02P 27/05 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using AC supply for both the rotor and the stator circuits, the frequency of supply to at least one circuit being variable
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
19.
PACKAGE SORTING TRANSFER MODULE AND SYSTEMS AND METHODS THEREFOR
A transfer module assembly includes a frame, a conveyor belt with internal rotating elements, where the conveyer belt is supported by the frame, conveyor drive rollers supported by the frame and configured to drive the conveyor belt, a flat transfer belt mounted beneath the conveyor belt and configured to contact undersides of the internal rotating elements of the conveyor belt in operation, and flat transfer belt drive rollers supported by the frame and configured to drive the flat transfer belt. The conveyor drive rollers are friction-based and operate without use of a sprocket, and comprise depressions for receiving the internal rotating elements of the conveyor belt.
B65G 17/24 - Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of rollers which are moved over a supporting surface by the traction element to effect conveyance of loads or load-carriers
A modular transfer system with a primary flow system and a diverter system. The primary flow system includes a primary flow belt for conveying an article along a primary flow path from an infeed side of the modular transfer system to a pass-through side of the modular transfer system. The diverter system includes one or more diverter belts for diverting an article from the primary flow path towards a divert side of the modular transfer system. The primary flow belt includes multiple movable components contacting the diverter belt. The movable components can have one or more rotational degrees of freedom.
B65G 47/22 - Devices influencing the relative position or the attitude of articles during transit by conveyors
B65G 17/08 - Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the surface being formed by the traction element
B65G 17/24 - Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of rollers which are moved over a supporting surface by the traction element to effect conveyance of loads or load-carriers
B65G 17/30 - Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface - Details; Auxiliary devices
An electric motor assembly for pumping a fluid through a fluid cavity includes a stator assembly including a plurality of conduction coils configured to transmit heat energy to the fluid within the fluid cavity and a rotor assembly positioned adjacent the stator assembly to define an axial gap therebetween. The stator assembly is configured to impart a first axial force on the rotor assembly. The electric motor assembly also includes an impeller directly coupled to the rotor assembly opposite the stator assembly such that the rotor assembly and the impeller are configured to rotate about an axis. A fluid channeled by the impeller imparts a second axial force on the impeller. The rotor assembly and the impeller are configured to be submerged in the fluid within the fluid cavity.
An electric motor assembly includes a bearing assembly including a rotating component and at least one stationary component. The electric motor assembly also includes an impeller coupled to the rotating component. The impeller includes an inlet and an outlet and is configured to direct a fluid between the inlet and the outlet. The electric motor assembly also includes a rotor assembly directly coupled to the impeller. A fluid flow channel is defined between the rotating component and the at least one stationary component. The flow channel includes a first end proximate the impeller outlet and a second end proximate the impeller inlet.
A hydrodynamic bearing assembly includes a first member including a first engaging surface. The first member is stationary in a non-operating mode of the bearing assembly and rotates about an axis in an operational mode of the bearing assembly. The hydrodynamic bearing assembly also includes a second member including a bore and a second engaging surface positioned adjacent the first engaging surface. The second member is stationary in both the non-operating mode and the operational mode of the bearing assembly. The hydrodynamic bearing assembly further includes a spacer member positioned within the bore and is configured to engage the first member to define a first gap between the first engaging surface and the second engaging surface in the non-operational mode.
A carriage assembly for a transport system includes a first body and a second body configured to moveably couple to a beam defining a transport path. The carriage assembly also includes a carrier coupled to the first body and the second body. The carrier is configured to support a container such that the carriage assembly transports the container along the transport path. The carriage assembly further includes a drive system coupled to at least one of the first body and the second body. The drive system is configured to move the carriage assembly along the transport path.
A draft inducer blower assembly for use with a water heater has a housing, a motor, and a fan. The housing has an exhaust volute surrounding the fan and a base adapted to be mounted atop a water heater. The base has an inlet port adapted to receive exhaust gas from the water heater. The fan is connected to the motor for rotation about a rotation axis. The exhaust volute and the base may be or may not be non-adjustably fixed relative to each other. The exhaust volute has a cut-off at a cut-off angle relative to the rotation axis. The exhaust volute has an exhaust outlet passageway that extends to an exhaust port. The exhaust port is lower than the top of the exhaust volute.
A fuse holder for holding a fuse is provided that includes a body, a line side connector supported by the body, and a load side connector supported by the body. The fuse holder also includes a toggle switch supported by the body and capable of toggled engagement in a first position that provides electrical connection. The switch is also capable of toggled engagement in a second position that provides electrical isolation between the line side connector and the load side connector. The fuse holder also includes a fuse carrier. The fuse carrier is supported by the body and adapted for holding the fuse and the fuse carrier is adapted to be removed from the fuse holder. The fuse holder includes a blocking device blocking the toggled engagement of the switch from the second position to the first position when the fuse carrier is not within the fuse holder.
A centrifugal blower for HVACR applications includes a squirrel cage forward-curved blower fan and a scroll housing. The blower fan comprises a plurality of blades that are configured to emit air radially outward and tangentially from between the blades when the blower fan rotates at a first speed. The air so emitted has a deviation angle defined as the difference between the direction of the emitted air and the blade exit angle. The scroll housing has a spline-shaped wall that has an axial cross-section that is configured such that the deviation angle of the air emitted from the blower fan at an axial plane deviates by no more than fifteen percent circumferentially about the blower fan in between the spline-shaped wall and the blower fan and such that the average tangential velocity of air between the spline-shaped wall and the blower fan deviates by no more than thirty percent.
An electronic control module is provided. The electronic control module is operably connected to a power supply for providing power to a motor. The electronic control module includes an input device, a processor coupled to the input device, and first and second current supply lines. The processor is configured to generate a command signal in response to an input supplied by the input device and transmit the command signal to the motor. The command signal controls an operating point of the motor. The first and second current supply lines are operably connectable to the motor and the processor. At least one of the current supply lines, the input device and the processor are adapted to utilize the current supply lines both to transmit power to the motor and to transmit the command signal to the motor over the current supply lines.
H02P 5/68 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more dc dynamo-electric motors
H02P 7/28 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
H02P 31/00 - Arrangements for regulating or controlling electric motors not provided for in groups , or
H04B 3/54 - Systems for transmission via power distribution lines
H04W 4/00 - Services specially adapted for wireless communication networks; Facilities therefor
A forward curved blower wheel has fan blades having relatively small leading edge blades angles and a relatively lengthy mean camber lines. The blower wheel also comprises leading edge notches adjacent its blower wheel inlet. The leading edge notches eliminate buffeting that would occur with such blades if such notches were not present.
Controllers for controlling hybrid motor drive circuits configured to drive a motor are provided herein. A controller is configured to drive the motor using an inverter when a motor commanded frequency is not within a predetermined range of line input power frequencies, and couple line input power to an output of the inverter using a first switch device when the motor commanded frequency is within the predetermined range of line input power frequencies.
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
31.
MOTOR CONTROLLER, DRIVE CIRCUIT, AND METHODS FOR COMBINED ELECTRIC MOTOR CONTROL
An electric motor controller, an electric motor drive circuit, and methods for combined electric motor control are provided. The drive circuit is configured to drive a first electric motor and a second electric motor. The drive circuit includes a rectifier configured to convert an AC input voltage to a pulsed DC voltage, and a first DC link electrically coupled to the rectifier. The first DC-link includes a low-capacitance capacitor having a capacitance less than 10 µF. The drive circuit also includes a first inverter coupled to the first DC-link, the first inverter configured to generate a conditioned output voltage to drive the first electric motor, a second DC-link electrically coupled to the first DC-link, and a second inverter coupled to the second DC-link. The second inverter is configured to generate a conditioned output voltage to drive the second electric motor.
H02M 1/12 - Arrangements for reducing harmonics from ac input or output
H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
H02M 3/158 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
H02P 6/10 - Arrangements for controlling torque ripple, e.g. providing reduced torque ripple
According to an embodiment of the invention, a system for managing commands for a pump electric motor for powering a pump for use in a pool and/or a spa is provided. The system includes a user interface for receiving user commands from a user and a pump motor controller for controlling the pump electric motor. The user interface and/or the pump motor controller is adapted to receive first protocol commands utilizing a first protocol from a first input source and adapted to send first input source signals corresponding to the first protocol commands to a portion of the pump motor controller. The user interface and/or the pump motor controller is further adapted to receive second protocol commands utilizing a second protocol from a second input source and adapted to send second input source signals corresponding to the second protocol commands to a portion of the pump motor controller.
B01D 24/00 - Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
33.
ENERGY RECOVERY APPARATUS FOR A REFRIGERATION SYSTEM
An energy recovery apparatus for use in a refrigeration system, comprises an intake port, a nozzle, a turbine and a discharge port. The intake port is adapted to be in fluid communication with a refrigerant cooler of a refrigeration system. The nozzle comprises a fluid passageway. The nozzle is configured to increase velocity of the refrigerant as it passes through the fluid passageway. The turbine is positioned relative to the nozzle and configured to be driven by refrigerant discharged from the fluid passageway. The discharge port is downstream of the turbine and is configured to be in fluid communication with an evaporator of the refrigeration system.
According to another embodiment of the present invention, an electric machine is provided. The machine includes a housing and a stator. The stator is fixedly secured to the housing. The machine also includes a rotor. The rotor is rotatably secured to the housing. At least one of the housing, the stator and the rotor include an inner wall defining a passageway adapted for improved fluid flow therethrough.
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
H02K 9/16 - Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the cooling medium circulates through ducts or tubes within the casing
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
35.
THERMAL PROTECTION DEVICE AND METHOD FOR PROTECTING A MOTOR
A thermal protection device and methods for protecting a motor are described. The thermal protection device is electrically coupled between a power supply and a gate drive circuit for driving the motor. The thermal protection device is configured to disconnect the power supply from the gate drive circuit when a temperature measured by the thermal protection device exceeds a threshold temperature value.
H02H 7/08 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for dynamo-electric motors
36.
SYSTEMS AND METHODS FOR COMMUNICATING WITH ELECTRIC MOTORS
A motor controller for an electric motor is described. The motor controller is coupled to a power line communication connection and includes a communication device coupled to a memory device. The motor controller is configured to receive, using the communication device, a status query from a server computing device via the power line communication connection. The motor controller is additionally configured to transmit electric motor diagnostic data from the memory device to the server computing device via the power line communication connection. The motor controller is further configured to receive motor configuration data from a client computing device wirelessly coupled to the motor controller. The motor configuration data is for controlling the electric motor. The motor controller is also configured to operate the electric motor in accordance with the motor configuration data.
H02P 25/16 - Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
B60W 10/04 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
37.
SYSTEM AND METHODS OF ELECTRIC MACHINE ROTOR POSITION DETECTION
An electric machine includes a stator assembly defining a longitudinal axis. The stator assembly includes a substantially cylindrical stator core that is concentric with and extends longitudinally along the longitudinal axis. The stator core includes a stator pole having an inner surface spaced radially outward from the longitudinal axis. The stator pole includes a first aperture extending radially outward from the inner surface of the stator pole. The electric machine also includes a rotor assembly rotatable about the longitudinal axis. The rotor assembly includes a rotatable shaft and a rotor core. The rotor core is concentric with and extends longitudinally along the longitudinal axis. The rotor core also includes a rotor pole including an outer surface spaced radially outward from the longitudinal axis. The outer surface is spaced radially inward from the stator pole inner surface.
A centrifugal fan assembly having an axis of rotation includes an inlet ring, a back plate, and a plurality of blades coupled between the inlet ring and the back plate. At least one blade of the plurality of blades includes a radially inner edge, a radially outer edge, and at least one flow channel extending obliquely therebetween. The at least one flow channel includes an inlet defined on the radially inner edge and an outlet defined on the radially outer edge, wherein the inlet and the outlet are positioned at different axial locations along a length of the blade.
A motor controller for a motor is described. The motor controller includes a communication device coupled to a memory device. The motor controller is configured to receive, using the communication device, a status query from a client computing device. The motor controller is additionally configured to transmit diagnostic data from the memory device to the client computing device, transmit identification data associated with the motor controller to the client computing device, receive, from the client computing device, a decommission password generated from the identification data, and disable the motor using the decommission password.
A quick-release automatic tensioning motor base for supporting a motor. The motor is operably coupled to a device to be driven via a drive belt. The motor base includes at least two base brackets and at least one guide rail fixedly coupled between the base brackets. A platform assembly, which supports the motor, is slidably coupled to the guide rail for movement there along. A spring assembly is selectively coupled between the base brackets and fixedly coupled to the platform assembly. The spring assembly applies a biasing force to the platform assembly to maintain a belt tension along the drive belt. A quick-release assembly selectively engages the spring assembly and the at least two base brackets to permit movement of the quick-release assembly between a first position to retain the spring assembly and a second position to release the spring assembly to permit movement of the platform assembly.
A blower assembly includes a housing including an outlet and a cutoff point positioned proximate the outlet. The blower assembly also includes an impeller including a plurality of blades that each includes a tip portion including a radially outer edge and a transition point that divides the radially outer edge into a first portion and a second portion. The impeller is positioned within the housing such that a first radial gap is defined between the cutoff point and the first portion and a second radial gap is defined between the cutoff point and the second portion. The first radial gap includes a constant width that is shorter than a width of the second radial gap.
A motor controller coupled to a motor is described. The motor controller includes a wireless communication device and a computing device coupled to the wireless communication device. The computing device is configured to communicatively couple with a client computing device using the wireless communication device, wirelessly receive at least one setting from the client computing device, and operate the motor pursuant to the at least one setting, to move liquid in an aquatic environment.
A bearing assembly for rotatably supporting a shaft member. The bearing assembly has an inner ring having an inner surface sized to receive the shaft member therein. A first fastener threadedly engages a first fastener aperture formed in the inner ring such that a distal end of the first fastener engages the shaft member to selectively retain the inner ring to the shaft member for rotation therewith. A first groove extends along the inner surface of the inner ring and is aligned with the first fastener aperture formed in the inner ring. The first groove is sized to permit clearance between a burr or other obstruction formed on an exterior surface of the shaft member.
An electrostatic blower for moving a flue gas is provided. The electrostatic blower includes a power source and a housing coupled to the power source. The housing includes an inlet end and a discharge end. A corona discharge device is coupled to the power source and to the housing. The corona discharge device is configured to ionize the flue gas. The electrostatic blower includes a collector device coupled to the housing at a position downstream from said corona discharge device with respect to a flow of the flue gas within said housing. The collector is configured to attract the ionized flue gas from the corona discharge device.
B01D 53/32 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by electrical effects other than those provided for in group
A motor includes a stator having a plurality of end coils. A control is coupled to a circuit board. The circuit board is coupled to the stator and is spaced apart from the end coils to define a first radial gap. A rotor is positioned adjacent the stator and is supported for rotation with respect to the stator. A fan is coupled to the rotor, and a housing surrounds and fully encloses the stator and the circuit board. The housing is spaced apart from the circuit board to define a first axial gap and a second radial gap. The fan directs a flow of cooling air through the first radial gap and the second radial gap to cool the circuit board.
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Various embodiments of stand-off devices and methods are disclosed. The stand-off device can space a bearing assembly apart from a support, such as a frame of a conveyor belt, thereby providing access between the bearing assembly and the frame, such as for cleaning fluid. Certain embodiments of the stand-off device include a first end and a second end, with the first end being receivable in a securing hole of the bearing assembly and the second end configured to protrude from the bearing assembly.
A motor having an axis of rotation is provided. The motor includes a housing, a first shaft coupled to the housing and a second shaft coupled to the first shaft. The motor further includes a stator coupled to the housing and comprising an outer circumferential surface and an inner circumferential surface, wherein the inner circumferential surface defines a stator bore around the axis of rotation. A gearbox is coupled to the first shaft and to the second shaft and positioned within the stator bore. The motor includes a rotor coupled to the first shaft and adjacent the stator.
A bearing temperature monitoring system for detecting a temperature of bearing grease within a bearing housing. The bearing temperature monitoring system comprises a housing mountable to the bearing housing, a power source selectively outputting an electrical current, and an electrical circuit. The electrical circuit includes a temperature sensor component electrically coupled to the power source. The temperature sensor component can be responsive to a change in temperature such that the temperature sensor component opens or closes the electrical circuit at a predetermined temperature even in the absence of an applied electrical current. The electrical circuit further includes an alert device electrically coupled to the power source and the temperature sensor component that outputs an alert in response to the temperature sensor component.
Methods and systems for controlling an electric motor are provided herein. The system is configured to be coupled to a power supply. The electric motor system includes a rectifier, an electric motor, and a microcontroller. The rectifier is configured to convert an alternating current (AC) voltage input to a direct current (DC) voltage. The microcontroller is configured to extract power from a generator device.
This invention describes an electric machine system and/ or components cover for use within any airflow path. The system is comprised of a shield and cover which may be used independently or in combination to address the concerns of airflow efficiency, EMI, thermal management and moisture management. The field of the invention relates generally to electric machines and, more particularly, to motor assemblies having drive components.
A switch-mode power supply that includes a transformer coupled to an alternating current (AC) power source and a direct current (DC) power source, wherein the AC power source is electrically isolated from the DC power source. The switch-mode power supply further includes a first controller configured to regulate a first voltage output from the AC power source, and a second controller configured to regulate a second voltage output from the DC power source when the transformer is not receiving power from the AC output.
H02M 1/10 - Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
H02M 3/155 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
52.
CENTRIFUGAL FAN IMPELLER WITH VARIABLE SHAPE FAN BLADES AND METHOD OF ASSEMBLY
In one aspect, a flexible fan blade for use in a centrifugal fan impeller having at least one of a rear plate and a front plate with an air inlet is provided. The flexible fan blade comprises a fixed central portion fixedly coupled to at least one of the front plate and the rear plate of the centrifugal fan impeller. The flexible fan blade also includes a trailing edge extending from the fixed central portion and being moveable between a first position and a second position. The trailing edge is fabricated from a compliant material. Furthermore, the trailing edge is flexible in relation to the fixed central portion between a first position and a second position. The flexible fan blade also includes a leading edge extending from the fixed central portion in opposed relation to the trailing edge.
A centrifugal fan is described. The fan uses a blade that is tapered across the span of the blade. The taper can be larger towards the end opposite of the inlet or larger at the inlet. The blade may be backwardly inclined and / or curved. The fan may also include a turning vane.
An energy recovery apparatus for use in a refrigeration system, comprises an intake port, a nozzle, a turbine and a discharge port. The intake port is adapted to be in fluid communication with a condenser of a refrigeration system. The nozzle comprises a fluid passageway. The nozzle is configured to expand refrigerant discharged from the condenser and increase velocity of the refrigerant as it passes through the fluid passageway. The turbine is positioned relative to the nozzle and configured to be driven by refrigerant discharged from the fluid passageway. The discharge port is downstream of the turbine and is configured to be in fluid communication with an evaporator of the refrigeration system.
An electric motor controller is configured to be coupled to an electric motor. The controller is also configured to control the electric motor to produce torque when direct current (DC) link voltage has a 100% voltage ripple, or when direct current (DC) link voltage is one of approaching zero and equal to zero, for the purpose of reducing torque ripple in the electric motor.
H02P 3/02 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters - Details
H02P 7/06 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
H02P 29/02 - Providing protection against overload without automatic interruption of supply
56.
METHODS AND VOLTAGE REGULATOR FOR POWER DISTRIBUTION IN A HYBRID SYSTEM
Methods and a voltage regulator are provided for distributing power sourcing in a hybrid power plant system. The voltage regulator is configured to monitor an output power of a generator and control an excitation signal provided to the generator based at least in part on the generator output power.
A blower assembly includes a centrifugal fan and a motor assembly. The centrifugal fan has a plurality of axially extending impeller blades, a first axial end, and an air inlet. The air inlet is at the first axial end of the centrifugal fan. The motor assembly comprises a stator, a rotor, and an air directing surface. The air directing surface is shaped and configured to direct air drawn into the air inlet radially outwardly toward the impeller blades. The air directing surface extends generally along the rotor axis from its first end to its second end. At least a surface region of the air directing surface generally circumscribes the rotor axis and diverges radially outwardly as such surface region of the air directing surface extends away from the first end toward the second end.
A blower assembly having a blower housing, an impeller fan within the blower housing, the impeller fan being adapted for rotation about an axis and having a plurality of impeller blades and having an axial length, a motor having a stator and a rotor, the motor having an axial length, the rotor being configured to rotate relative to the stator for rotation about the axis, the rotor and the impeller fan being coupled so that the impeller fan rotates with the rotor about the axis, wherein a ratio of the axial length of the motor to the axial length of the impeller fan is less than 0.3, and a motor support bracket operatively securing the stator to one of the first and second side walls of the blower housing.
A motor includes a rotor supported for rotation about a longitudinal axis, a stator including a magnetic core, a first end plate positioned at a first end of the magnetic core, and a second end plate positioned at a second end of the magnetic core. The magnetic core, first end plate, and second end plate cooperate to define a central opening. The motor also includes a plurality of rods each fixedly attached to the first end plate and the second end plate and including a first end that extends along the longitudinal axis beyond the first end plate and a second end that extends along the longitudinal axis beyond the second end plate. A first support disk is coupled to the first end of each of the rods and a second support disk is coupled to the second end of each of the rods.
An electromagnetic transmission assembly. The electromagnetic transmission assembly includes a stator having a central axis and a plurality of selectively-energized electromagnetic poles. A first rotor assembly is rotatably supported for rotation about the central axis. The first rotor assembly including a first rotor shaft and a castellated rotor including a plurality of radially arranged ferromagnetic pole portions disposed in a housing. A second rotor assembly is rotatably supported for rotation about the central axis. The second rotor assembly includes a second rotor shaft and a permanent-magnet rotor. The first rotor assembly is at least partially magnetically coupled to the second rotor assembly when the plurality of electromagnetic poles are energized.
H02K 51/00 - Dynamo-electric gears, i.e. dynamo-electric means for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts
A sensorless permanent magnet motor system that prevents negative torque caused by back EMF. The system determines the position of the rotating permanent magnet by monitoring back EMF generated on an inactive coil of the motor system. A snubber circuit is used to prevent the back EMF from causing negative torque on the motor. The voltage of back EMF used to power a logic circuit, such as a microcontroller, that controls the operation of the motor. The microcontroller controls the operation of the motor by detecting back EMF and is also partially powered by the back EMF.
A method of controlling an electrical machine. The electrical machine includes a stator having a core and a plurality of windings, and a rotor disposed adjacent to the stator to interact with the stator. The method includes detecting a movement of the rotor, generating a three phase alternating current (AC) voltage signal by all phases of the electrical machine, monitoring for a transfer speed of the electrical machine, discontinuing the three phase AC voltage signal when the transfer speed is traversed, and switching to a back electromotive force (BEMF) control mode after discontinuing the three phase AC voltage signal.
H02P 6/18 - Circuit arrangements for detecting position without separate position detecting elements
G05D 23/20 - Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
An end frame for an electro-dynamic machine. The end frame includes a radial bearing support surface disposed concentrically about the axis and an axial bearing support surface substantially perpendicular to the axis. A base wall is substantially perpendicular to the axis. A first annular wall is disposed concentrically about the axis and extends from the base wall to the axial bearing support surface. A second annular wall is disposed radially outward of the first annular wall and cooperates therewith to define an annular space that extends from the base wall to the axial bearing support surface. A first boundary wall extends across the annular space from the base wall to the axial bearing support surface. A metering wall extends across the annular space a portion of a distance from the base wall to the axial bearing support surface. The base wall, the axial bearing support surface, the first annular wall, the second annular wall, the first boundary wall and the metering wall cooperate to define a first chamber for receiving grease.
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
An electro-dynamic machine including a rotor shaft extending along an axis and a bearing rotatably supporting the rotor shaft for rotation about the axis. An inner housing has an outer surface and defines a bearing bore. The bearing bore receives and supports the bearing. An outer housing surrounds the inner housing. A plurality of non-radial ribs extends from the outer housing to the inner housing. The non-radial ribs are coupled to the inner housing substantially tangential to the outer surface.
A reinforced permanent magnet synchronous motor rotor for starting on line, which comprises standard laminations (1), conducting bars (2), magnetic strips (3) and reinforced laminations (4), wherein the reinforced laminations (4) are positioned between the standard laminations (1); the magnetic strips (3) are embedded into the standard laminations (1) and are separated by the reinforced laminations (4); and the conducting bars (2) penetrate through the stacked standard laminations (1) and reinforced the laminations (4). Compared with a permanent magnet motor rotor structure in the prior art, the reinforced laminations (4) are added in the reinforced permanent magnet synchronous motor rotor for starting on line, thus the mechanical strength of the motor rotor can be effectively improved and the service life of the motor rotor can be prolonged on the premise of not sacrificing the efficiency of the motor.
A loss-less snubber drive for a permanent magnet motor. The motor system includes a first motor phase with a primary winding and an auxiliary winding. A controllable switch is positioned between the primary winding and ground such that current passes through the primary winding to ground when the controllable switch is closed. A capacitor is configured to accumulate charge when the controllable switch is opened. The auxiliary winding is configured such that charge stored by the capacitor causes current to pass through the auxiliary winding when the controllable switch is closed.
H02P 6/00 - Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
patents
