A method of identifying at least one pole location on a bearing element formed from a metal source element. The method is non-destructive and does not alter the surface of the bearing element. The method includes applying X-rays to a plurality of regions of a bearing element, and measuring diffracted intensity values of X-ray diffraction vectors or bi-sectors at the plurality of regions. The method includes determining at least one pole location on the bearing element based on the diffracted intensity values.
G01B 15/00 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
G01N 23/20 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using reflection of the radiation by the materials
A method of forming a bearing cage is generally disclosed herein. The method includes (i) forming a bearing cage from either titanium or a titanium alloy; and (ii) applying a plasma-nitriding treatment to at least one surface of the bearing cage to form a compound layer of titanium nitride including TiN and Ti2N on an outer region of the at least one surface. Step (ii) further forms a diffusion zone adjacent to the outer region, in one aspect. A surface hardness of the bearing cage that is treated by the plasma-nitriding step is at least 1000 HV. The bearing cage is configured to be used in a turbofan, turboprop, or turboshaft engine or in a helicopter gearbox, in one aspect.
The invention relates to a press-fit-interlocking connection of an inner part to an outer part which is fastened to the inner part, and a belt tensioner having such a connection, wherein: -the press-fit connection comprises a cylindrical press joint between the outer part and the inner part-and the interlocking connection is formed by an axial stop having contacting stop on the inner part and on the outer part. The connection has an edge support in contact with the stop parts which contact one another, in a first main plane of curvature to which the cylinder axis of the press joint is perpendicular, with equal radii of curvature, and in a second main plane of curvature in which the cylinder axis of the press joint lies, with different radii of curvature.
The invention relates to a layer system (1, 1', 1", 1a) for coating a bipolar plate (10) or an electrode unit (10a, 10b), comprising at least one first layer (2, 2a, 2b), at least one second layer (3), and at least one cover layer (4, 4a, 4b) which is arranged on the at least one second layer (3) in particular and is made of a doped tetrahedral amorphic carbon ta-C:X, wherein as the dopant X, at least one element is provided from the group comprising titanium, niobium, tungsten, zirconium, tantalum, hafnium, molybdenum, copper, silicon, platinum, palladium, ruthenium, iridium, silver, boron, nitrogen, phosphor, fluorine, hydrogen, and oxygen, and the dopant X is provided in the cover layer (4, 4a, 4b) in a concentration of > 0 to 20 at.-%. The invention additionally relates to a bipolar plate (10) or an electrode unit (10a, 10b) comprising such a layer system (1, 1', 1", 1a) and to a fuel cell (100) and a redox flow cell (110).
The invention relates to a method for machining a bearing ring (2, 3) of a rolling bearing (1), in particular a wheel bearing, comprising the following features: clamping a blank for producing the bearing ring (2, 3) into a machine tool; structuring an annular surface (10) of the bearing ring (2, 3) by high-feed milling, said surface forming a sealing face. The invention further relates to a rolling bearing, in particular a wheel bearing, having a high-feed milled surface as a sealing face for a seal (8).
The invention relates to a catalyst system, an electrode which comprises the catalyst system and a fuel cell or an electrolyzer having at least one such electrode. The catalyst system comprises an electrically conductive carrier metal oxide and an electrically conductive, metal oxide catalyst material, wherein the carrier metal oxide and the catalyst material differ in their composition and wherein the catalyst material and the carrier metal oxide are each stabilized with fluorine. A near-surface pH value, designated pzzp value (pzzp = point of zero zeta potential), of the carrier metal oxide and of the catalyst material differ from one another, wherein the pup value c]if either the carrier metal oxide or the catalyst material is at most pF- 5 The catalyst material arid the carrier metal oxide form an at least two-phase disperse oxide composite,
CATALYTIC ARRANGEMENT FOR AN ELECTROLYZER SYSTEM OR A FUEL CELL SYSTEM, ELECTROLYZER SYSTEM, FUEL CELL SYSTEM, USE OF A CATALYTIC ARRANGEMENT AND METHOD FOR PRODUCING A CATALYTIC ARRANGEMENT
The invention relates to a catalytic arrangement for an electrolyzer system or a fuel cell system, comprising a catalyst support unit and a catalyst layer. The catalyst layer has a carbon matrix with a metal, non-metal and/or metalloid doping,
The invention relates to a separating drum for separating different kinds of parts, in particular injection molded and molded parts, having a substantially cylindrical separation main frame (10) which can be rotated about an axis and change segments (9) which can be reversibly secured to the separation main frame. Openings (11) for separating the parts are formed solely by the change segments (9).
B07B 13/00 - Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
A rolling element for a roller bearing. The rolling element may include a metal substrate having a surface layer. A portion of the surface layer may include a hardened nitrided layer. A diamond-like carbon (DLC) coating may be bonded directly on at least a portion of the hardened nitrided layer.
F16C 19/30 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for axial load mainly
F16C 19/36 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
10.
COATING AND LAYER SYSTEM, AND BIPOLAR PLATE, FUEL CELL AND ELECTROLYSER
The invention relates to a coating (3a), in particular for a bipolar plate (1) of a fuel cell or an electrolyser, the coating (3a) consisting of a homogeneous or heterogeneous solid metal solution. According to the invention, the coating (3a) comprises either a first chemical element from the group of precious metals in the form of iridium in a concentration of at least 99 atomic % or a first chemical element from the group of precious metals in the form of iridium and a second chemical element from the group of precious metals in the form of ruthenium, the first chemical element and the second chemical element being present overall in a concentration of at least 99 atomic %, and also at least one further non-metallic chemical element from the group comprising nitrogen, carbon, fluorine, wherein oxygen and/or hydrogen are still optionally present only in traces. The invention further relates to a layer system (3), a bipolar plate (1) having such a layer system (3), a fuel cell and an electrolyser.
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
H01M 8/0228 - Composites in the form of layered or coated products
The invention relates to a method for storing energy in the form of hydrazine carbonate and subsequent reconversion of the hydrazine carbonate into reusable energy, in which sea water is first used in an electrolysis method to produce hypochlorite, the hypochlorite reacting to form hydrazine by the introduction of ammonia, by means of the formation monochloramine, and subsequently the hydrazine reacts to form hydrazine carbonate by the introduction of carbon dioxide, the hydrazine carbonate releasing hydrogen or at least one hydrogen-containing gas by reaction on a catalyst free of noble metal, in order to release the stored energy, and the hydrogen or the gas containing at least hydrogen is to be supplied to a fuel cell or burned in order to emit the reusable energy. The invention also relates to the use of sea water, ammonia and carbon dioxide for the production of hydrazine carbonate.
C07C 281/00 - Derivatives of carbonic acid containing functional groups covered by groups in which at least one nitrogen atom of these functional groups is further bound to another nitrogen atom not being part of a nitro or nitroso group
A cage for a double row roller bearing assembly is disclosed. The cage includes an annular rim and two pluralities of webs. A first plurality of roller pockets are defined between adjacent ones of a first plurality of webs. Each of the webs of the first plurality of webs includes two first prongs and a first slot defined between the two first prongs. A first partial cylindrical guide surface is arranged on each first lateral surface of the first plurality of webs, and a first undercut is defined between each of the first lateral surfaces and the annular rim. Two adjacent ones of the first prongs are elastically deformable away from one another for insertion of a roller. A second plurality of webs are also provided with the same features as the first plurality of webs.
A non-conventional, low temperature, process for applying a thin electrically insulating coating arrangement with high density, high purity, minimal porosity, and improved adhesion strength to a steel bearing component is provided. The bearing component is formed from steel and machined or otherwise formed to a near net shape. A high purity aluminum is electo-chemically deposited on the steel bearing component using a non-aqueous electrolyte in an inert environment to form a high purity aluminum coating at least over a portion of the steel bearing component. A surface of the high purity aluminum coating is then converted by an acid-bath into aluminum oxide to form an insulating layer. A bearing component and a bearing having such components is also provided.
The invention relates to a layer (3a), in particular for a bipolar plate (1) of a fuel cell or an electrolyser, wherein the layer (3a) consists of a homogeneous or heterogeneous solid metal solution or compound. According to the invention, the layer (3a) has either a first chemical element from the group of noble metals in the form of iridium, or a first chemical element from the group of noble metals in the form of iridium and a second chemical element from the group of noble metals in the form of ruthenium, as well as at least one further non-metal chemical element from the group comprising nitrogen, carbon, boron, fluorine, hydrogen. The invention also relates to a layer system (3), a bipolar plate (1) having a layer system (3) of this type, a fuel cell and an electrolyser.
H01M 8/0228 - Composites in the form of layered or coated products
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
The invention relates to a bearing arrangement (1) for a drilling head, through which flushing liquid flows, of a deep drilling device, having multiple radially outer and radially inner bearing rings (6, 7), wherein the radially outer bearing rings (6) are arranged coaxially over the radially inner bearing rings (7), wherein, radially between the bearing rings (6), there are arranged balls (8, 9) which roll in raceways (6a, 7a) of the bearing rings (6, 7), and wherein the raceways (6a, 7a) are delimited axially on both sides by shoulders (6b, 7b) with mutually opposite shoulder surfaces (6c, 7c) which run parallel to a bearing longitudinal axis (11). In order for a bearing arrangement (1) of said type, which, as per the prior art, is adjoined in an axial direction by at least one plain bearing, to be designed to be of short axial extent and in order to simplify the construction, the internal diameter (Di) of the shoulder surfaces (6c, 7c) of the radially outer bearing rings (6) and the external diameter (Da) of the shoulder surfaces (7c) of the radially inner bearing rings (7) are dimensioned such that said shoulder surfaces (6c, 7c) perform the function of parallel radial plain bearings with a radial clearance (S).
F16C 21/00 - Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
F16C 17/02 - Sliding-contact bearings for exclusively rotary movement for radial load only
F16C 19/10 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for axial load mainly
The invention concerns a propeller blade mounting system comprising a mounting system (4) on rolling bearings between a propeller hub (3) and a propeller blade (2), wherein: at least one bearing outer ring (9) is connected in rotationally fixed manner to the propeller blade (2); at least one bearing inner ring (15, 16, 17) is mounted on the propeller hub (3); a sleeve-shaped central portion (13) connected to the propeller blade (2) is disposed radially inside the bearing inner ring (15, 16, 17); and a lubricant chamber (18) is formed between the bearing outer ring (9) and the central section (13) in the radial direction, relative to the rotational axis (R) of the propeller hub (3), and is closed towards the exterior.
B64C 11/06 - Blade mountings for variable-pitch blades
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16C 33/66 - Special parts or details in view of lubrication
The invention relates to a bottom bracket unit comprising a bottom bracket axle (1), at least one bearing (2, 3) that receives the bottom bracket axle (1) in a rotatable manner, and an optical detection unit (11), by means of which the rotational speed of the bottom bracket axle (1) can be detected. The optical detection unit (11) measures at least one signaling device (12) that is rotationally fixed to the bottom bracket axle (1). The aim of the invention is to provide a bottom bracket unit that can also detect the rotational direction of the bottom bracket axle in addition to the rotational speed of the axle. According to the invention, this is achieved in that the optical detection unit (11) comprises two optical sensors (17), one of said sensors (17) providing a signal that is phase-shifted with respect to the other sensor (24) having a fixed phase difference, in particular with a phase difference of 90°.
The invention relates to a tensioning device (11) for a traction mechanism drive (1) which is arranged on an internal combustion engine and comprises a drive wheel (3) arranged on a drive shaft (30) of an engine (4), one or more additional driving wheels (5, 6), and a continuously revolving traction means (2), which wraps around the drive wheel and the additional driving wheels. The tensioning device comprises two tensioning arms (13, 14) having tensioning wheels (9, 10) mounted thereon, which apply a tensioning force to the traction means in front of and behind the drive wheel in the direction of revolution, and is provided with a spring means (16) generating the tensioning force, and a tensioner housing (12), which movably mounts at least one of the tensioning arms to which the force of the spring means is applied. The tensioner housing is mounted on the engine pivotably about the axis (29) of the drive shaft.
The invention relates to a centrifugal pendulum device comprising pendulum masses (50) which are arranged axially on both sides of a pendulum mass support (46) and which form a pendulum mass pair (48), said pendulum mass support being rotatable about a rotational axis. The pendulum masses are fixed to each other using at least one fixing element (54) in order to form the pendulum mass pair, and the fixing element passes through a cut-out (52) of the pendulum mass support. The pendulum mass pair can be pivoted in a limited manner with respect to the pendulum mass support using at least two rolling elements that can roll in tracks in the pendulum mass support. A first fixing element (58) of a first pendulum pair (62) and a second fixing element (60) of a second pendulum mass pair (64) lie peripherally adjacent to each other. Said centrifugal pendulum device is characterized in that a spacer element (66) lies between the first and second fixing element such that the first and second pendulum mass pair do not fall below a minimum distance from each other, and the spacer element (66) has a spring means.
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
The invention relates to a rolling bearing arrangement comprising at least one rolling bearing outer ring of a rolling bearing, an intermediate element, and a housing part, wherein the rolling bearing can be inserted into the housing part such that the intermediate element lies between the rolling bearing outer ring and the housing part. A first contact zone is formed between the rolling bearing outer ring and the intermediate element, and a second contact zone is formed between the intermediate element and the housing part. Formed on the first contact zone is a cooling system having at least one cooling recess through which a cooling agent can flow. Formed on the second contact zone is a damping system having at least one damping recess via which a damping cavity in the second contact zone can be filled with a damping medium.
The invention relates to methods for testing a bearing component (1), in order to ensure that the bearing surface (3) and a load-bearing region (2) located underneath said bearing surface are in a perfect condition. According to the invention, a material testing depth (MPT) containing the point (Pmax) of maximum mechanical load during operation is determined; in a first partial testing step (T1), the bearing component (1) is subjected to an ultrasound test (US) by which means the material region underneath the bearing surface (3) is tested for defects by means of ultrasound, at least up to the material testing depth (MPT); in a second partial testing step (T2), a full optical test (OP) of the bearing surface (3) is carried out, during which the actual surface state (12) of the bearing surface (3) is compared with a nominal surface state (14); and the bearing component (1) is then only classified as faultless if the results (E1, E2) of the two partial testing steps (T1, T2) do not reveal any defects.
The invention relates to an interchangeable wheel bearing unit (3), for example for commercial vehicles, comprising a wheel hub (2) and two tapered roller bearings (1, 1'), each having an outer ring (4, 4') and an inner ring (5, 5'), between which a respective row of tapered rollers (6) is situated, and a securing ring (8) in at least one of the inner rings (5, 5') of the tapered roller bearing (1, 1'). The aim of the invention is to assemble said wheel bearing unit (3) without specialist knowledge and special tools, using simple tools that are available in garages, without a specific requirement for cleanliness during the assembly process. To achieve this, each outer ring (4, 4') of the tapered roller bearings (1, 1') has a cylindrical extension (10), which runs coaxially with the wheel hub axis (9) towards the outer face of the bearing and into which a respective seal (12, 12') is inserted, and a retaining element (13, 13'), which is supported on the corresponding inner ring (5, 5') and axially fixes the outer ring (4, 4'), is located on the opposite face of the respective tapered roller bearing (1, 1') from the seal (12, 12').
F16C 19/36 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
F16C 19/54 - Systems consisting of a plurality of bearings with rolling friction
F16C 33/66 - Special parts or details in view of lubrication
The invention relates to an anti-friction bearing (1) comprising a first bearing race (2), a second bearing race (3) and a plurality of anti-friction bodies (5) that are located between the first bearing race (2) and the second bearing race (3). According to the invention, the anti-friction bearings (5) are arranged in several rows (11 , 12, 13), which are asymmetrical in the longitudinal direction of the anti-friction bearing in relation to any plane (ME) that runs perpendicularly to said longitudinal direction of the anti- friction bearing.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
The invention relates to a machine element which is formed form steel having a martensite structure and which comprises, at least in a load-free state, compression stresses which are thermochemically produced under at least one section of the surface of the machine element. The value of the compression stresses from the surface to a depth of a maximum 40 ~m corresponds to at least the absolute value of -300 Mpa.
The invention relates to a roller bearing comprising at least one first roll partner which is made of a ceramic material, in addition at least one second roll partner which is made of steel having a martensite structure. According to the invention, at least one section of the surface of the second roll partner is in rolling contact with the first roll partner for a roll contact and the compression stresses are formed on the section below the surface of the second roll partner at least in a charge-free state.
patents
