43 results about "Gerotor" patented technology

This invention relates to the field of retarder technology, and more particularly to a hydraulic retarder. The hydraulic retarder includes a housing, a rotor shaft, a stator, a rotor, and a flow disruptor. The housing has a cavity, and the rotor shaft rotatably passes through the cavity, with a drive gear at one end extending out of the cavity. An external splined gear is located at the end of the rotor shaft within the cavity. The stator is fixedly mounted on the housing and fitted onto the rotor shaft, with the stator blades sealingly extending into the cavity. The rotor is located within the cavity and meshes with the external splined gear for transmission. The rotor is rotatably fitted onto the stator, and the rotor blades are fixedly clearance-fitted with the stator blades to form a working chamber. The flow disruptor is retractably positioned within the fixed gap between the stator and the rotor. The flow disruptor extends into the working chamber after the hydraulic retarder exits operation or exits the working chamber when the hydraulic retarder enters operation. This shortens the response time for entering and exiting operation, and reduces the no-load loss of the hydraulic retarder through the flow disruptor.

A kind of converging type pressure increasing gerotor pump.This application relates to the improvement of gerotor internal gear pump structure.By staggered compensation, avoid the flow pulsation caused by pump cavity volume change, and then realize the output pressure boost, and run smoothly.This application includes high pressure pump body, low pressure pump body and main shaft, the axis of outer rotor A and outer rotor B is arranged on one side of the main shaft, the axis of high pressure pump outer rotor is arranged on the other side of the main shaft, and the axis of outer rotor A is + alpha angle relative to horizontal line, the axis of outer rotor B is - alpha angle relative to horizontal line, alpha = 360 ° / 2N, N is the number of inner rotor teeth.This application adopts the ingenious design of rotor eccentric installation, realizes the pressure boost of pump, and the staggered compensation solves the flow pulsation caused by pump cavity volume change, provides stable flow for high pressure booster pump inlet.This application can be widely used in new energy vehicles, wind power, air conditioning, generator, industrial production, chemical industry, petroleum, metallurgy, water treatment and other fields, for conveying various liquids.

The utility model discloses an integrated type swing cycle pump lubricating device, including pump casing, inner rotor and outer rotor, be provided with oil cavity and with oil inlet and oil outlet of oil cavity communication on the pump casing, its characterized in that, the bottom of oil cavity is provided with annular unloading groove with oil outlet communication, and the bottom surface of annular unloading groove is multistage step surface. This integrated type swing cycle pump lubricating device can effectively buffer fluid resistance and pulsation, reduce cavitation and cavitation erosion phenomenon, and stabilize oil pressure of oil outlet.

The invention relates to a liquid pump driven by a PMDC motor and a motor control system and method.The liquid pump comprises a pump shell used for being connected with the PMDC motor, an upper cover connected with the pump shell and provided with an opening allowing liquid to circularly enter and exit, and a shaft seal used for being connected with a driving shaft of the PMDC motor in a sleeving mode and arranged in the pump shell; the inner gear rotor is arranged in the pump shell and used for being connected with the driving shaft, the outer gear rotor is eccentrically connected with the inner gear rotor in a sleeved mode, and the first sealing ring and the second sealing ring are connected to the upper cover and the pump shell in a clamped mode respectively. The liquid pump can be driven by the PMDC motor, liquid can be effectively prevented from entering the PMDC motor through multi-position sealing design, and the liquid pump can be applied to various cooling systems and lubricating systems; meanwhile, the PMDC motor is controlled to enter a low-power, low-current and low-voltage cold start mode in a mode of gradually increasing the input power, potential safety hazards can be effectively avoided, and the service life of equipment is prolonged.

The application discloses a forward and reverse clock movement, which comprises a shell, an MCU controller, a transmission structure, a first coil motor, a second coil motor and a rotor magnet which are arranged in the shell; the transmission structure comprises multiple-stage gears which are sequentially and mutually meshed, and a gear for being connected with a pointer is a pointer gear; the rotor magnet is fixedly connected with a first-stage gear of the multiple-stage gears; the MCU controller inputs a first driving pulse current into a first coil of the first motor coil to generate a magnetic field so as to make the first-stage gear rotate, and further make the pointer gear rotate forward; the MCU controller inputs a second driving pulse current into a second coil of the second motor coil to generate a magnetic field so as to make the first-stage gear rotate, and further make the pointer gear rotate reversely. When time needs to be corrected, a direction with a small rotation amplitude of the pointer is selected to be adjusted forward or reversely, so that the time can be corrected more quickly and accurately.

The invention relates to an automatic blind installation device for a multistage cycloid pump rotor. A rotor clamping assembly comprises a supporting frame capable of ascending and descending, and clamping fingers are arranged in the supporting frame; a detection sleeve is arranged at the lower end of the supporting frame, the lower ends of the clamping fingers are inserted into the detection sleeve, an optical fiber sensor is arranged on the inner wall of the detection sleeve, and a rotor limiting seat is arranged at the lower end and provided with a limiting seat through hole aligned with the optical fiber sensor; the shell is arranged on the shell positioning assembly, the detection sleeve and the rotor limiting seat are firstly driven by the supporting frame to enter the shell, then the shell is driven by the shell positioning assembly to rotate, a blind hole in the bottom of the shell is detected through the optical fiber sensor to determine a to-be-assembled position, and after the shell rotates to the to-be-assembled position, the detection sleeve and the rotor limiting seat are fixed. The detection sleeve and the rotor limiting base are driven by the supporting frame to be separated from the shell, then the upper end of a rotor shaft in the middle of the rotor penetrates through the rotor limiting base and then is clamped through the clamping fingers, and a rotor pin shaft on the edge of the rotor is aligned with a limiting base through hole. During assembly, the rotor can be directly inserted into the shell to realize blind assembly.

The utility model discloses an interoperable gear rotor pump, which comprises a pump body provided with a first cavity, a second cavity, a feed port and a discharge port; the driving assembly comprises a first transmission shaft, a second transmission shaft and a driving part, and the first transmission shaft and the second transmission shaft are parallel and rotatably arranged on the pump body in a penetrating mode; one end of the first transmission shaft penetrates through the first cavity and is sleeved with a first transmission gear; one end of the second transmission shaft penetrates through the first cavity and is sleeved with a second transmission gear; the first transmission gear is meshed with the second transmission gear; the driving part is in driving connection with the first transmission shaft; the first meshing piece is located in the second cavity and is in key connection with the first transmission shaft; the second meshing piece is located in the second cavity, is in key connection with the second transmission shaft and is used for being meshed with the second meshing piece; the oil injection nozzle is arranged on the pump body and communicates with the first cavity. The problem that the production cost is increased due to the fact that different types of gear pumps or rotor pumps are selected to meet actual requirements in the prior art is solved.

The invention relates to a pump device 100 and a rotor core 711 for the pump device. The pump device 100 comprises a first rotor element 1 rotatably mounted about a first axis of rotation d1 extending in an axial direction Z, a second rotor element 2 rotatably mounted about a second axis of rotation d2 offset from the first axis of rotation d1, and a pump housing 3. The rotor elements 1 and 2 are arranged in a pump chamber 4 bounded by the pump housing 3 and mesh together to convey fluid from an inlet of the pump device to an outlet of the pump device 100. One of the rotor elements 1 and 2 is designed as an outer rotor. The other of the rotor elements 1 and 2 is designed as an inner rotor enclosed by the outer rotor perpendicular to the axial direction Z.The pump housing 3 comprises a pot-shaped first housing part 31, which has a housing base 311 and a circumferential housing wall 312, and has a second housing part 32 arranged on the housing wall 312, wherein the first rotor element 1 is mounted on a retaining part 5 which is arranged in the pump chamber 4 on the housing base 311, wherein the second rotor element 2 is mounted on a side of the pump chamber 4 opposite the retaining part 5 in the axial direction Z.

According to the gear rotor engine, power output is achieved through an air suction gear rotor set, an acting gear rotor set and an ignition device, the air suction gear rotor set has the air suction and compression functions, the acting gear rotor set has the acting and exhaust functions, the ignition device can work in cooperation with an air inlet valve, the gear rotor engine is used in intermittent combustion acting occasions, the combustion efficiency is high, and the service life is long. The engine can be independently ignited to do work without arranging an air inlet valve, is used in a continuous combustion work occasion, is high in output rotating speed, and is high in transmission efficiency due to the fact that the thrust direction and the force arm of detonation gas are not changed all the time.

1. The name of the design product: Integrated hub-connected cycloidal hydraulic motor (WT series). 2. The use of the design product: For medium-tonnage tracked vehicles. 3. The design points of the design product: In shape. 4. The picture or photo that best indicates the design points: Figure 1.

A gerotor pump includes an outer gerotor having an opening defined by an inner surface thereof, an inner gerotor received within the opening of the outer gerotor with a plurality of cavities formed between the inner gerotor and the outer gerotor, and a plurality of first pockets with each of the first pockets formed as an indentation in the inner surface of the outer gerotor. Each of the first pockets forms a first pressure relief feature for preventing an overpressure within each of the cavities formed between the outer gerotor and the inner gerotor.

A geared motor (1) is constituted of an axial gap motor unit (2) and a planetary gear reduction unit (3), and has a base section (4) and an output section (5), wherein: the motor unit (2) has a stator (2a), a rotor (2b), and a motor shaft (2c) that rotates integrally with the rotor (2b); the reduction unit (3) has a sun gear (3a) that rotates integrally with the motor shaft (2c), a planetary gear (3b) having a first gear section (3b1) that meshes with the sun gear (3a) and a second gear section (3b2) that rotates integrally with the first gear section (3b1), a first internal tooth gear (3c) that meshes with the first gear section (3b1), and a second internal tooth gear (3d) that constitutes the output section (5) and meshes with the second gear section (3b2); the rotor (2b) has a plurality of permanent magnets (2b1); and the stator (2a) has a plurality of coils (2a1) and an insulating material (2a2) that is integrally molded so as to connect the plurality of coils (2a1) into a single unit, and has a bearing (6) that is mounted on an inner peripheral edge section of the stator (2a) and supports the motor shaft (2c).

Gerotor pump (50) comprising the following: a pump housing (52) that defines a chamber (56) and has a fluid inlet (58) and a fluid outlet (60), an outer gear element which is supported for rotation within the chamber (56) about a first axis (98), wherein the outer gear element has a series of internal teeth (96), and an inner gear element rotatably supported within the outer gear element about a second axis (70) spaced apart from the first axis (98), wherein the inner gear element defines a series of external teeth (86) between which a series of external pockets (106) is inserted, wherein the inner gear element forms a continuous fluid passage (160) to fluidically connect two non-adjacent pockets (106) and another pocket (106) independently of the fluid passages (160), wherein the fluid passage (160) is designed to disrupt harmonics during operation in order to reduce pressure ripples and associated tonal noise.

The invention relates to a gear wheel rotor device having at least two gear wheel rotor stages, wherein each gear wheel rotor stage comprises an inner rotor which rotates around an inner axis during operation, has radially outwardly projecting teeth, and an outer rotor which rotates around an outer axis which is radially offset relative to the inner axis during operation, has radially inwardly opening tooth gaps in which the teeth of the inner rotor engage during operation, wherein the tooth gaps are sealed relative to one another and / or relative to the surrounding area. Simplified and cost-effective production of the rotor device and compact design and reliable operation are achieved in that the rotor body comprises the radially opening tooth gaps of the first gear wheel rotor stage and the radially outwardly projecting teeth of the second gear wheel rotor stage, wherein the tooth gaps are sealed relative to one another and / or relative to the surrounding area. Furthermore, the invention relates to a pump device having such a gear wheel rotor device and to a motor vehicle having such a pump device.

The utility model discloses a kind of rotating power generation devices suitable for two-wheeled vehicle, it is characterized by: including power generation mechanism and electricity storage mechanism, the power generation mechanism includes outer gear, inner gear, rotor magnetic ring, stator coil, the first gear tooth is provided on the outer gear, outer gear is coaxially connected in wheel and is co-rotated with it, the second gear tooth is provided on the inner gear, the first gear tooth and the second gear tooth are engaged with each other, the rotor magnetic ring is coaxially fixedly connected on the end face of inner gear, the stator coil is coaxially fixedly arranged in the rotor magnetic ring, there is gap between stator coil and rotor magnetic ring, stator coil is connected electricity storage mechanism, when rotor magnetic ring rotates, induction current can be generated in stator coil and is transported into electricity storage mechanism. The device is cut by the magnetic induction line of wheel side inlaying permanent magnet strip and wheel hub outer hanging coil module, and stable direct current is output by voltage stabilizing circuit, and it is suitable for auxiliary energy recovery of mobile carrier.

A gerotor pump comprises an outer gerotor with an opening formed by an inner surface thereof, an inner gerotor accommodated within the opening of the outer gerotor, wherein a plurality of cavities are formed between the inner gerotor and the outer gerotor, and a plurality of first pockets, each of the first pockets being formed as a depression in the inner surface of the outer gerotor. Each of the first pockets forms a first pressure relief feature to prevent overpressure in each of the cavities formed between the outer gerotor and the inner gerotor.

To provide a geared motor suitable for being configured thinly. [Solution] A geared motor (1) is composed of an axial gap type motor section (2) and a planetary gear type reduction section (3), and has a base section (4) and an output section (5); the motor section (2) has a stator (2a), a rotor (2b), and a motor shaft (2c) that rotates integrally with the rotor (2b); the reduction section (3) has a sun gear (3a) that rotates integrally with the motor shaft (2c), a planetary gear (3b) having a first gear section (3b1) that meshes with the sun gear (3a) and a second gear section (3b2) that rotates integrally with the first gear section (3b1), a first internal gear (3c) that meshes with the first gear section (3b1), and a second internal gear (3d) that constitutes the output section (5) and meshes with the second gear section (3b2); the rotor (2b) has a plurality of permanent magnets (2b1); the stator (2a) has a plurality of coils (2a1) and an insulating material (2a2) that is integrally molded to connect the plurality of coils (2a1) together; and a bearing (6) attached to the inner peripheral edge of the stator (2a) to support the motor shaft (2c).

A drive device for a motor vehicle has an electric engine formed as an axial flow engine, which has a stator and two rotors that can be rotated in relation to the stator. The stator is arranged between the rotors in the axial direction of the axial flow engine. A differential transmission is arranged at least partially radially inside the stator, the differential transmission having a first driven gear non-rotationally connected to a first driven shaft and a second driven gear non-rotationally connected to a second driven shaft. The rotors each have a rotor support, which are connected to one another in a form-fit manner and form a differential housing when seen at least in the axial direction of the electric engine.

The invention belongs to the technical field of aviation equipment calculation and analysis, and discloses a cycloid pump rotor end face gap design method which comprises the steps of calculating structural deformation of a pump under mechanical and thermal loads, obtaining a rotor anti-abrasion minimum end face gap, analyzing end face gap flow loss, evaluating pump flow performance and obtaining a rotor maximum end face gap. Determining the rotor end face design tolerance. According to the method, the minimum value of the rotor end face gap is obtained through a solidification structure simulation modeling equivalent method and a post-processing method, the maximum value of the rotor end face gap is obtained through calculation by combining design indexes and performance numerical values, and then the optimal tolerance range of the end face gap is determined. According to the method, the rotor end face abrasion resistance and the end face gap flow loss of the cycloid pump are evaluated at the same time, the contradictory balance of the two parties is found, the pump is converted from empirical drive design to forward analysis design on key size control, and the reliability of a product in a service state is improved.

Disclosed is a circular sawtooth wheel rotor (4) engine, comprising: a housing (1); a driving cavity (102) provided in the housing (1), a reverse toothed wheel cavity (3) being provided in the driving cavity (102); a toothed wheel rotor (4) provided in the reverse toothed wheel cavity (3), the reverse toothed wheel cavity (3) being coaxial with the toothed wheel rotor (4), and the reverse toothed wheel cavity (3) fitting with the toothed wheel rotor (4). The toothed wheel rotor (4) is connected to the housing (1) by means of a bearing, the toothed wheel rotor (4) is provided with a transmission shaft (401), and a driving gear (402) is mounted on an end portion of the transmission shaft (401) extending to the outside of the housing (1). A combustion chamber (5) is disposed at a top portion of the housing (1), the driving cavity (102) being in communication with the combustion chamber (5) by means of a first Tesla valve (2), and the combustion chamber (5) being internally provided with a first chamber (503) and a second chamber (504). A high-pressure mixed gas conveying apparatus is disposed at a top portion of the combustion chamber (5), and is used for conveying a cooling gas into the first chamber (503) and for conveying a combustion gas into the second chamber (504), such that the cooling gas or the combustion gas drives the toothed wheel rotor (4) to drive the driving gear (402) to operate.

This invention belongs to the field of power generation equipment technology, specifically relating to a helical wave energy generation device. Installed in water, it converts the potential energy of the helical motion generated on the water surface into electrical energy. The helical wave energy generation device includes: a fixed frame, a limiting seat, a float, and at least one power generation component. The limiting seat is located at the front end of the crossbar in the fixed frame; it has a guide hole and a rack at its bottom. The top cover of the float has a rack hole and a guide rod. The power generation component is installed inside the float; it includes a rotating shaft, two rotors, two stators, and two sets of triboelectric and electromagnetic power generation components. The rotating shaft has gears that mesh with the rack, the rotors and stators are located at both ends of the rotating shaft, and the triboelectric and electromagnetic power generation components are located between the rotors and stators. A waterproof component is also provided between the limiting seat and the float. This invention solves the problems of low power generation efficiency, high cost, and short service life of existing wave energy generation devices.

The invention relates to a Gerotor-type fluid pump or Gerotor-type fluid motor (100) with a port plate segment (108). The port plate segment (108) includes an inner recess (220) for a valve drive shaft (172) that is orbiting and rotating within the port plate segment (108). The port plate segment (108) further includes a plurality of circumferentially arranged fluid throughput ports (136) for selectively fluidly connecting a valve spool segment (110) and a Gerotor-type fluid displacement segment (106) of the Gerotor-type fluid pump / Gerotor-type fluid motor (100). The inner recess (224) includes at least two axially aligned segments (221, 222) with different diameters that are designed in an undetachable way.

The invention relates to an electric positive displacement pump (1) comprising an electric motor (2) designed as an internal or external rotor, having a stator (3), in particular an overmolded one, and a permanent magnet rotor (4) mounted on a shaft (5), wherein at least two gerotors (7, 8) are arranged on the shaft (5) in a pump head (6), wherein the shaft (5) is slidably mounted in a pump housing bearing shield (14) and a motor bearing shield (15), and wherein at least two suction ports (9, 10) and at least one pressure port (11) are formed axially on the end face of the pump head (6).Furthermore, the invention relates to an electric positive displacement pump (1) comprising an electric motor (2), which is designed as an internal or external rotor, having a stator (3), in particular an overmolded stator, and a permanent magnet rotor (4) which is mounted on a shaft (5), wherein at least two gerotors (7, 8) are arranged on the shaft (5) in a pump head (6), wherein the shaft (5) is slidably supported in a pump housing end shield (14) and a motor end shield (15), and wherein at least two suction ports (9, 10) are formed axially on the end face of the pump head (6) and at least one pressure port (11) is formed radially. The invention further relates to an oil circulation circuit in the electric positive displacement pump (1).

A hydraulic drive device (100) is disclosed in which a mechanical friction brake (124, 132, 134) is implemented in a gerotor hydraulic motor (113). The orbital movement of the gerotor star (118) is translated via a brake hub (124) into rotational movement of a set of brake pads (132). The rotational movement of the gerotor outer ring (114) is transmitted to another set of brake pads (134). These two sets of brake pads (132, 134) are axially pressed together to brake the gerotor motor (113). The braking force compressing these brake pads is applied via a spring force (138) and removed by transmitting the operating pressure of the motor to a brake piston (136) via a release member (139, 201) extending through a central shaft (130) and the brake hub (124).

The utility model relates to the technical field of electromagnetic pumps, in particular to an electromagnetic pump oil nozzle anti-loosening detection device. A vertical partition plate is arranged on the rear side of a rectangular hole in the middle of the top surface of an inner cavity of an outer box body; the oil nozzle clamping mechanism arranged in the middle of the inner cavity of the outer box body is used for clamping and fixing an oil nozzle of the electromagnetic pump to be tested; the torque detection mechanism comprises a bottom fixing plate fixed to the top end of the vertical partition plate, a gear with the bottom of a center shaft rotationally sleeving the bottom fixing plate, a torque sensor with the bottom end of a rotor fixedly sleeving the center of the gear, an outer gear ring meshed with the gear, and a power mechanism driving the top end of the rotor of the torque sensor to rotate. The pump body clamping mechanism comprises a swing plate fixedly connected with the bottom face of the outer gear ring, a through hole is formed in the position, right opposite to a center cavity of the outer gear ring, of the swing plate, and a mechanism which moves horizontally relative to the swing plate to clamp the electromagnetic pump body to be tested is arranged on the top face of the swing plate. The problems that the anti-loosening detection work of the oil nozzle of the electromagnetic pump consumes much manpower and is not high in efficiency are well solved.

The present invention relates to a Gerotor type fluid pump or Gerotor type fluid motor (100) having a gerotor plate segment (108). The gerotor plate segment (108) includes an internal recess (220) for a valve drive shaft (172) that orbits and rotates within the gerotor plate segment (108). The gerotor plate segment (108) further includes a plurality of circumferentially arranged fluid pass ports (136) for selectively fluidly connecting a spool segment (110) and a gerotor type fluid displacement segment (106) of the Gerotor type fluid pump / Gerotor type fluid motor (100). The internal recess (224) includes at least two axially aligned segments (221, 222) of different diameters designed in a non-detachable manner.

A gerotor pump includes a pump head including a configuration of gerotors for pumping in operation a fluid medium from an input port arrangement to an output port arrangement, and a motor arrangement for providing mechanical power in operation for actuating the configuration of gerotors. The configuration of gerotors includes an outer gerotor and an inner gerotor that are operable to cooperate to entrap and propel the fluid medium from the input port arrangement to the output port arrangement. At least one of the outer gerotor and the inner gerotor are fabricated from a flexible material and / or are internally structured so as to exhibit a flexible peripheral exterior surface in operation. Moreover, the outer gerotor and the inner gerotor are loaded and / or are assembled together in a preloaded state, within the pump head, so that a gap formed between the gerotors whereat they mutually cooperate for entrapping and propelling the fluid medium is maintained in a flexibly compressed state when the pump is in operation. Optionally, at least one of the outer and inner gerotors is fabricated as a hybrid component including regions of a flexible material therein, and regions of an inflexible material therein. More optionally, the flexible material has a Young's modulus in a range of 1 MegaPascal (MPa) to 5 GigaPascals (GPa), and the inflexible material has a Young's modulus in a range of 2 GPa to 420 GPa. Optionally, at least one gerotor gerotor pump is includes in a gerotor pump apparatus that includes a pulse attenuating arrangement at an output port of the gerotor pump apparatus for attenuating periodic pulses and fluctuations in a fluid flow provided in use at the output port.

Provided is an electronic oil pump for circulating oil by driving an electric motor, and more particularly, an electronic oil pump which may ensure rotational stability of a gerotor and minimize a pumping loss by cooling the electric motor by using pumped oil.

The utility model provides a brushless motor rotor with noise reduction function, including rotor body and magnetic ring, the rotor body is by plastics material integral injection moulding, the upper end of rotor body is provided with output gear coaxially, the inside of rotor body is provided with pin hole coaxially, the magnetic ring is integral injection moulded on the outer wall of rotor body and is provided with rotor body coaxially, the brushless motor rotor still includes bearing, the inside of rotor body lower extreme is provided with recessed cavity coaxially, and bearing is inlayed in recessed cavity and is limited with recessed cavity axial, the utility model discloses after applying to the brushless motor, when the high frequency operation of brushless motor, can effectively eliminate the noise of actuating mechanism.