The invention relates to a closure device for a measurement chamber of an electrochemical sensor, to a measurement chamber comprising such a closure device and to an electrochemical sensor comprising such a measurement chamber.
The present invention relates to a dosing pump for moving a fluid, having a dosing head, in which there is a dosing chamber, and a displacement element which can be moved to and fro between a first and a second position, the displacement element delimiting the dosing chamber, and the volume of the dosing chamber being greater when the displacement element is in the first position than the volume of the dosing chamber when the displacement element is in the second position. The displacement element is coupled via a stroke element to a linear motor such that during operation of the linear motor the stroke element executes a forward stroke and a return stroke in a housing in the direction of a movement axis with a stroke length H and the displacement element is moved to and fro between the first position and the second position. To provide a dosing pump and to improve dosing pumps which are driven with a linear motor, the invention therefore proposes that the stroke element have a cross-sectional area Q perpendicular to the movement axis, wherein the square of the stroke length H is at least four times greater than the cross-sectional area Q.
G01F 11/02 - Appareils qu'il faut actionner de l'extérieur, adaptés à chaque opération répétée et identique, pour mesurer et séparer le volume prédéterminé d'un fluide ou d'un matériau solide fluent à partir d'une alimentation ou d'un récipient sans tenir compte avec chambres de mesure qui se dilatent ou se contractent au cours du mesurage
3.
DIAPHRAGM SYSTEM CONTROL HAVING A MAGNETICALLY RETAINED CLOSURE ELEMENT
The present invention relates to a diaphragm pump having a conveying chamber and a working chamber, wherein the conveying chamber comprises a pressure connection and a suction connection, and the working chamber can be or is filled with a hydraulic fluid and is operatively connected to a pressure generator in order to apply an oscillating pressure to the hydraulic fluid, further comprising a diaphragm which has at least one diaphragm layer and a diaphragm core and which separates the conveying chamber and the working chamber from one another, and which can be moved from a pressure stroke position into a suction stroke position and back again, the volume of the conveying chamber in the pressure stroke position of the diaphragm being smaller than in the suction stroke position. The diaphragm is or can be brought into operative connection with a diaphragm return device comprising a traction rod, which applies or can apply a force to the diaphragm in the direction of the suction stroke position and further comprising a storage chamber for accommodating the hydraulic fluid, the working chamber and the storage chamber being connected to one another via a channel closed by a closure element. The closure element is connected to the traction rod so as to be movable relative thereto, such that the closure element can be moved from a closed position into an open position and back again, and the closure element comprises a magnet and/or is operatively connected to a magnet which locks the closure element in the closed position, and the closure element is moved into the open position and the channel is opened when the diaphragm is deflected over the pressure stroke position away from the suction stroke position.
The invention relates to a diaphragm pump comprising a diaphragm assembly and a diaphragm retrieval device comprising a tensile bar, said diaphragm assembly comprising a diaphragm and a diaphragm retaining device which secures said diaphragm, wherein the diaphragm assembly and the tensile bar are force-fittingly interconnected by means of a magnetic force of adhesion.
F04B 43/00 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles
F04B 45/04 - Pompes ou installations de pompage, ayant des organes de travail flexibles, spécialement adaptées pour fluides compressibles ayant des organes flexibles du genre plat, p.ex. des diaphragmes
The invention relates to a device for moving a fluid, comprising a dosing head in which a dosing chamber is arranged, and a displacement element which can be moved between a first and second position, wherein the displacement element borders the dosing chamber, and the volume of the dosing chamber in the first position differs from the volume of the dosing chamber in the second position, wherein a drive unit for moving the displacement element from the first position to the second position and a return mechanism for moving the displacement element from the second position to the first position are provided. According to the invention, in order to ensure that the device has a compact design and allows the dosing head and the displacement element to operate reliably, the return mechanism has two parts, each of which is either a magnet or an element made of ferromagnetic material, the first part being placed on the dosing head, the second part being connected to the displacement element, and the two parts are designed in such a way that a magnetic force acting between the two parts causes a force to be applied to the displacement element in the direction of the first position.
F04B 43/00 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles
F04B 43/06 - Pompes ayant un entraînement par fluide
F04B 9/08 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant à fluide
The present invention relates to a measuring device for determining the fill level of a filling content in a container. To provide a measuring device of the aforementioned type which is simple and cost-effective to produce and provides for substantially continuous determination of the fill level of an unknown filling content in a container, the invention proposes that the measuring device comprises at least three measuring sensors that are spaced apart from one another in a height direction, wherein a read-out device with at least three measuring inputs is provided for reading out the measuring sensor signals, each measuring sensor signal being dependent on material properties of a filling content adjacent to the respective measuring sensor, wherein a calibration device is provided which calculates a fill level, detected by a measuring sensor positioned neither right at the top nor right at the bottom in the height direction, on the basis of the measuring sensor signal of the measuring sensor that is positioned further up and/or the measuring sensor that is positioned further down.
G01F 23/26 - Indication ou mesure du niveau des liquides ou des matériaux solides fluents, p.ex. indication en fonction du volume ou indication au moyen d'un signal d'alarme en mesurant des variables physiques autres que les dimensions linéaires, la pression ou le poids, selon le niveau à mesurer, p.ex. par la différence de transfert de chaleur de vapeur ou d'eau en mesurant les variations de capacité ou l'inductance de condensateurs ou de bobines produites par la présence d'un liquide ou d'un matériau solide fluent dans des champs électriques ou électromagnétiques
The present invention relates to a method for producing a shaped membrane, comprising the following steps: a) providing a plastic film, b) heating the plastic film to a temperature T1 which is above the melting point of the plastic film, c) quenching the plastic film to a temperature T2 which is below the melting point, d) heating the plastic film to a temperature T3 which is below the melting point and above the temperature T2, e) shaping the heated plastic film.
The invention relates to a method for operating at least one metering device. According to the invention, in order to specify a method for operating metering devices that is flexibly adaptable, the method has the steps of providing a server, providing at least one metering device, providing a control device, transferring data, providing a case database, calculating improved further operating data and providing the improved further operating data for the control device.
The invention relates to a device for generating a pulsating hydraulic fluid pressure in a working chamber (1) filled with hydraulic fluid, comprising a driveable working piston (4) movably guided in a hollow working cylinder, wherein a working chamber (1) that is in fluid communication with the working piston (4) is provided, such that, by means of the movement of the working piston (4) within the hollow working cylinder, a pulsating hydraulic fluid pressure can be generated in the working chamber (1). In order to provide a device for generating a pulsating hydraulic fluid pressure and in particular a diaphragm metering pump comprising such a device, which has small dimensions and in addition a rapid passage through the phase between closing the suction valve and opening the pressure valve, according to the invention, an auxiliary piston (20) is movably guided in a hollow auxiliary cylinder and is in fluid communication with an additional chamber (18, 21), wherein a closeable auxiliary channel (22), which connects the additional chamber (18, 21) and the working chamber (1), is provided, wherein the auxiliary piston (20) and the hollow auxiliary cylinder are formed and arranged in such a way that, by moving the auxiliary piston (20) within the hollow auxiliary cylinder, a hydraulic fluid arranged in the additional chamber (18, 21) can at least partly be forced out of the additional chamber (18, 21) into the auxiliary channel (22) and from the auxiliary channel (22) into the working chamber (1).
F04B 5/00 - "Machines" ou pompes avec pistons à surfaces différentielles
F04B 5/02 - "Machines" ou pompes avec pistons à surfaces différentielles avec des pistons à double action
F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p.ex. des diaphragmes
The present invention relates to a dosing device with a dosing chamber in which a displacement element is movably arranged in such a way that it is movable to and fro between two positions, wherein the volume of the dosing chamber in one position is greater than in the other position. The dosing device moreover has an actuator for driving the displacement element, which actuator has an actuator input for an electrical control signal and is constructed in such a way that an electrical control signal present at the actuator input is converted into a mechanical movement. Moreover, the dosing device has a sensor for detecting a physical or chemical parameter, which sensor has a sensor output for an electrical measurement signal and is configured in such a way that it detects the physical or chemical parameter, converts it into an electrical measurement signal and makes the latter available at the sensor output. Finally, the dosing device has a communications interface via which the dosing device can communicate with a remote server.
The invention relates to a diaphragm structure (1) comprising two plastic layers (2, 3) and a fabric (4) consisting of fibers or wires arranged between the two plastic layers (2, 3). In order to provide a diaphragm structure for diaphragm pumps, which diaphragm structure is characterized by an improved resistance to breakages of the diaphragm, in particular as a result of frictional wear that occurs, at least some of the fibers or wires of the fabric (4) have a separating cut (6a).
F04B 43/00 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles
F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p.ex. des diaphragmes
The invention relates to a displacement pump with a delivery chamber, which is connected to a pressure connection and a suction connection, and a displacement element that determines the volume of the delivery chamber and can be moved between a first position in which the delivery chamber has a smaller volume and a second position in which the delivery chamber has a larger volume. The pressure connection is connected to the delivery chamber via a pressure valve, and the suction connection is connected to the delivery chamber via a suction valve. The aim of the invention is to provide a corresponding displacement pump which is self-ventilating, simply constructed, and additionally has a pressure-stable metering capacity even in the event of high counter-pressures in the pressure line. According to the invention, this is achieved in that a reservoir which can be filled with a pumping fluid is connected to the delivery chamber via a venting valve.
F04B 13/00 - Pompes spécialement modifiées pour débiter des quantités fixes ou prédéterminées
F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p.ex. des diaphragmes
13.
DIAPHRAGM PUMP WITH REDUCED LEAK EXTENSION IN THE EVENT OF OVERLOAD
A diaphragm pump comprises a diaphragm which separates a hydraulic chamber (6) from a delivery chamber, wherein the delivery chamber is connected to a suction port and to a pressure port, and pressure can be applied using a pulsating working fluid pressure to the hydraulic chamber (6) that can be filled with a working fluid, and the diaphragm can be moved back and forth between a pressure position, in which the volume of the delivery chamber is smaller, and a suction position, in which the volume of the delivery chamber is larger. The hydraulic chamber (6) is connected to a working fluid reservoir via a leak extension valve (5), wherein the leak extension valve (5) is configured such that if the pressure in the hydraulic chamber in the suction position of the diaphragm is smaller than a predefined minimum value, the leak extension valve (5) opens, and the hydraulic chamber (6) comprises an outlet channel which is closed by a pressure limiting valve which is configured such that if the pressure rises above a predefined maximum value in the hydraulic chamber (6) the pressure limiting valve opens and working fluid can leave the hydraulic chamber (6) via the outlet channel. The working fluid reservoir is arranged in a first (1) and in a second chamber (2), wherein the two chambers (1,2) are connected to each other via a first connecting channel (4).
The invention relates to a method for optimizing metering profiles of displacement pumps in which a movable displacement element bounds a metering chamber, which metering chamber is connected to a suction line and to a pressure line by means of valves, such that pumped fluid can be alternately sucked into the metering chamber via the suction line and pressed out of the metering chamber via the pressure line by means of an oscillating movement of the displacement element, wherein a drive is provided for the oscillating movement of the displacement element. In order to provide a method according to the invention which permits control of the pressure-piece movement without prior tabulation of control parameters even if the system is exposed to unexpected disturbances, a model-based control according to the invention is used for the drive.
F04B 17/04 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques utilisant des solénoïdes
F04B 43/04 - Pompes ayant un entraînement électrique
F04B 51/00 - Tests des "machines", pompes ou installations de pompage
G05B 13/04 - Systèmes de commande adaptatifs, c. à d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques impliquant l'usage de modèles ou de simulateurs
F15B 19/00 - Test des systèmes ou appareils de manœuvre utilisant la pression d'un fluide, dans la mesure où ils ne sont pas prévus ailleurs
15.
METHOD FOR DETERMINING A PHYSICAL VARIABLE IN A POSITIVE DISPLACEMENT PUMP
The present invention relates to a method for determining at least one physical variable in a positive displacement pump, wherein the positive displacement pump has a movable displacer element which delimits the metering chamber which is connected via valves to a suction and pressure line, with the result that delivery fluid can alternately be sucked into the metering chamber via the suction line and can be pressed out of the metering chamber via the pressure line as a result of an oscillating movement of the displacer element, wherein a drive is provided for the oscillating movement of the displacer element.
F04B 17/04 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques utilisant des solénoïdes
F04B 43/04 - Pompes ayant un entraînement électrique
F04B 51/00 - Tests des "machines", pompes ou installations de pompage
G05B 13/04 - Systèmes de commande adaptatifs, c. à d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques impliquant l'usage de modèles ou de simulateurs
F15B 19/00 - Test des systèmes ou appareils de manœuvre utilisant la pression d'un fluide, dans la mesure où ils ne sont pas prévus ailleurs
16.
METHOD FOR DETERMINING HYDRAULIC PARAMETERS IN A DISPLACEMENT PUMP
The invention relates to a method for determining hydraulic parameters in a displacement pump, wherein the displacement pump has a movable displacement element, which bounds the metering chamber, which is connected to a suction and pressure line by means of valves, wherein a drive is provided for the oscillating motion of the displacement element. In order that pumped fluid can be alternately sucked into the metering chamber via the suction line and pressed from the metering chamber via the pressure line by means of an oscillating motion of the displacement element, a physical model having hydraulic parameters according to the invention is established for the hydraulic system, the force exerted by the displacement element on the fluid located in the metering chamber or the pressure in the metering chamber is determined and the position of the displacement element is determined, and at least one hydraulic parameter is calculated by means of an optimization calculation.
F04B 17/04 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques utilisant des solénoïdes
F04B 43/04 - Pompes ayant un entraînement électrique
F04B 51/00 - Tests des "machines", pompes ou installations de pompage
G05B 13/04 - Systèmes de commande adaptatifs, c. à d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques impliquant l'usage de modèles ou de simulateurs
F15B 19/00 - Test des systèmes ou appareils de manœuvre utilisant la pression d'un fluide, dans la mesure où ils ne sont pas prévus ailleurs
The invention relates to a method for finishing a first type of denim, in which the first type of denim is treated at least once in an aqueous solution containing additional substances, during the treatment, the coloured aqueous solution is removed and a non-coloured aqueous solution is added. According to the invention, at least one part of the coloured aqueous solution is subjected to a decolouring process and the coloured aqueous solution is used in the treatment.
C02F 1/78 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen d'ozone
D06P 1/00 - Procédés généraux de teinture ou d'impression des textiles ou procédés généraux de teinture du cuir, des fourrures ou des substances macromoléculaires solides de toutes formes, classés selon les teintures, les pigments ou les substances auxiliaires u
D06L 1/20 - Nettoyage à sec ou lavage des fibres, filaments, fils, filés, tissus, plumes ou articles fibreux utilisant des solvants aqueux combinés avec des moyens mécaniques
The invention relates to a diaphragm pump, comprising a pumping chamber, a suction connection and a pressure connection, which are both connected to the pumping chamber, a working chamber, which is filled with a hydraulic fluid, a device for applying an oscillating pressure p1 to the hydraulic fluid, a diaphragm, which separates the pumping chamber and the working chamber from each other and can be moved back and forth between a pressure stroke position and a suction stroke position, wherein the volume of the pumping chamber is smaller in the pressure stroke position of the diaphragm than in the suction stroke position of the diaphragm, and a storage chamber for accommodating hydraulic fluid at the pressure p2, wherein the storage chamber and the working chamber are connected to each other by means of a valve having a closing part. According to the invention, in order to provide a diaphragm pump of the type mentioned at the beginning that has a simple construction and reliably ensures that the diaphragm cannot move too far beyond the pressure stroke position, the diaphragm is coupled to the closing part in such a way that the valve is opened when the diaphragm moves from the pressure stroke position to a position that is farther from the suction stroke position.
The present invention relates to a metering system for metering a fluid metered medium, with a suction line that is filled with a metered medium at fluid pressure ps, and a pressure line that is filled with the metered medium at fluid pressure pd, wherein the suction line is connected to the pressure line via a metering member constructed as a metering pump, with which metered medium can be conveyed from the suction line into the pressure line, wherein the metering pump has a delivery chamber, the volume of which can be varied with the assistance of a movable displacement element in such a manner that the delivery chamber has a minimum volume Vmin in a first position of the displacement element and a maximum volume Vmax in a second position of the displacement element, wherein the delivery chamber is connected via a pressure valve to the pressure line and via a suction valve to the suction line, such that, by means of an oscillating movement of the displacement element, metered medium can alternately be drawn out of the suction line via the suction valve into the delivery chamber and metered medium can be discharged from the delivery chamber via the pressure valve into the pressure line. In order to provide a metering system and a metering pump adapted thereto which has a high efficiency, no leakage flow and is easy to construct, according to the invention the formula (I) is provided where κ = 1.5.
F04B 13/00 - Pompes spécialement modifiées pour débiter des quantités fixes ou prédéterminées
F04B 15/06 - Pompes adaptées pour travailler avec des fluides particuliers, p.ex. grâce à l'emploi de matériaux spécifiés pour la pompe elle-même ou certaines de ses parties avec des liquides près de leur point d'ébullition, p.ex. à une pression anormalement basse
The present invention relates to a displacement pump comprising a delivery chamber, which is connected to a pressure connection and a suction connection, a displacement element determining the volume of the delivery chamber, said element being able to be moved backwards and forwards between a first position in which the delivery chamber has a smaller volume and a second position in which the delivery chamber has a greater volume, wherein the pressure connection is connected to the delivery chamber via a pressure valve and the suction connection is connected to the delivery chamber via a suction valve. According to the invention, in order to provide a displacement pump that can be manufactured simply and inexpensively and simultaneously reliably provides a degassing function, which enables downtimes to be reduced and the reliability of the delivery process to be enhanced, a backflow channel connects the delivery chamber and pressure connection when the pressure valve is closed, via which pressure connection the medium can enter the delivery chamber and/or gas can escape from the delivery chamber.
brevets
