公开(公告)号：US11897328B2

公开(公告)日：2024-02-13

申请号：US18082858

申请日：2022-12-16

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Koichi Okuda ,  Naoki Itazu ,  Satoshi Kasamai

IPC分类号： B60K17/10 ,  B60K17/02 ,  B60K17/12 ,  B60K6/383 ,  B60K6/26 ,  B60K7/00 ,  F16H1/06 ,  F16H37/06 ,  F16H48/16 ,  F16H57/04 ,  F04C2/10 ,  B60K25/00 ,  F16H31/00

CPC分类号： B60K17/105 ,  B60K17/02 ,  B60K17/12 ,  B60K6/383 ,  B60K2006/266 ,  B60K2007/0061 ,  F04C2/10 ,  F16H1/06 ,  F16H31/001 ,  F16H37/065 ,  F16H48/16 ,  F16H2200/2069

摘要： A vehicle electric drive apparatus is provided with a single hydraulic pump and left-side and right-side drive units. The left-side drive unit includes a left-side electric motor and a left-side transmission mechanism. The right-side drive unit includes a right-side electric motor and a right-side transmission mechanism. One of rotary shafts of the left-side transmission mechanism and one of rotary shafts of the right-side transmission mechanism constitute a pair of pump-drive rotary shafts. The single hydraulic pump is connected to the pair of pump-drive rotary shafts through respective one-way clutches, and is to be driven by one of the pump-drive rotary shafts that is rotated at a speed higher than the other of the pump-drive rotary shafts, so as to output a hydraulic pressure.

公开(公告)号：US20240011481A1

公开(公告)日：2024-01-11

申请号：US17785865

申请日：2020-12-14

申请人： Cummins Inc.

发明人： Amol Yashwant Alsundkar ,  Senthil Kumar Selvaraj ,  Nitin Khojare ,  Rashmi Prakash Keskar ,  Jayesh Mahadev Gudekar

IPC分类号： F04C2/10 ,  F04C15/06 ,  F04C18/10

CPC分类号： F04C2/101 ,  F04C2/10 ,  F04C15/06 ,  F04C18/103

摘要： A crescent member is disclosed which is configured to be in constant contact with outer and inner gear teeth to prevent unwanted fluid backflow between the gears. The crescent member may be part of a low-pressure fuel pump system for a diesel engine. In order to reduce heat buildup in the crescent member and gear teeth, the crescent member comprises a gap to allow fluid to flow within the crescent member to absorb and dissipate the heat generated by friction. The crescent member is resilient to maintain constant contact, but flexible enough to reduce wear from friction over time.

公开(公告)号：US20230392683A1

公开(公告)日：2023-12-07

申请号：US18317993

申请日：2023-05-16

申请人： Deere & Company

发明人： Javier Jose Perez ,  Daniel Vergara Martinez

IPC分类号： F16H57/04 ,  F04C2/10

CPC分类号： F16H57/0436 ,  F16H57/0408 ,  F16H57/0412 ,  F04C2/10 ,  F04C2210/20

摘要： A gerotor pump arrangement for extracting hydraulic fluid from a transmission housing of a transmission. A first gerotor set has a first inner rotor and a first outer rotor, and a second gerotor set has a second inner rotor and a second outer rotor. The first gerotor set forms a hydraulically drivable drive side of the gerotor pump arrangement, and the second gerotor set forms a pump side, driven by the first gerotor set, wherein the first and second inner rotors are rotationally fixedly mounted on a common shaft which is rotatable about a rotational axis. A transmission with such a gerotor pump arrangement is also disclosed.

公开(公告)号：US11796555B2

公开(公告)日：2023-10-24

申请号：US16485650

申请日：2018-02-21

申请人： STACKPOLE INTERNATIONAL ENGINEERED PRODUCTS, LTD.

发明人： Liping Wang

IPC分类号： F04B49/06 ,  F04C14/08 ,  F04D15/00 ,  F04B49/20 ,  G01P3/44 ,  G01P3/487 ,  F04C15/00 ,  F04C2/10 ,  F04C2/344

CPC分类号： G01P3/487 ,  F04B49/06 ,  F04B49/20 ,  F04C14/08 ,  F04C15/008 ,  F04C2/10 ,  F04C2/102 ,  F04C2/344 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2240/60 ,  F04C2240/808 ,  F04C2270/0525 ,  G01P3/44

摘要： A pump assembly and a method for sensing rotary motion of the pump therein are disclosed. The pump assembly includes a pump, a controller, and an optional driven electric motor. The components may be axially aligned and mounted relative to one another. The controller includes a circuit board that is oriented in an axial direction of the pump assembly so that it faces in a radial direction. A 3D rotary sensor is mounted on the circuit board and is designed to detect motion parallel to its front face and motion in a plane perpendicular to its front face, including rotary motion of the pump, for output to the controller. The controller is configured to control the pump via controlling the drive shaft of the motor or pump.

公开(公告)号：US11795945B2

公开(公告)日：2023-10-24

申请号：US17696902

申请日：2022-03-17

申请人： MIKUNI CORPORATION

发明人： Norio Takehana

IPC分类号： F04C2/10 ,  F04C15/06 ,  F04C15/00

CPC分类号： F04C2/102 ,  F04C2/10 ,  F04C15/0049 ,  F04C15/06 ,  F04C2210/206 ,  F04C2240/60 ,  F04C2270/12 ,  F04C2270/13

摘要： The disclosure provides a pump device capable of suppressing hydraulic amplitude and reducing noise or vibration associated with hydraulic amplitude while simplifying the structure. The pump device includes: a housing which defines a suction port, a discharge port, and an accommodation chamber; and a pump unit which is arranged in the accommodation chamber and which defines a pump chamber that expands and contracts to exert a pumping action including a suction stroke and a pressurization and discharge stroke on a fluid. The housing includes an air introduction hole that is opened to introduce air into the pump chamber at a predetermined opening timing immediately before the suction stroke is completed.

公开(公告)号：US20230332599A1

公开(公告)日：2023-10-19

申请号：US18026587

申请日：2021-09-14

申请人： ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO., LTD.

发明人： Lingli WAN ,  Lili LIU ,  Wei YE

IPC分类号： F04C14/28 ,  F04C11/00 ,  F04C2/10

CPC分类号： F04C14/28 ,  F04C11/008 ,  F04C2/10 ,  H02K11/25

摘要： An electronic oil pump includes a first rotor assembly, a stator assembly, an electric control board assembly, an isolation member and thermal conductive members; the first rotor assembly is located in a first chamber of the electronic oil pump, the thermal conductive members each comprise a first portion and a second portion, the first portions being located in a second chamber of the electronic oil pump, the second portions being located in a third chamber of the electronic oil pump; the electric control board assembly includes a base plate and a temperature-sensing unit, the base plate including first holes, an upper plate layer, a lower plate layer and at least one metal layer, a part of the second portions being located in the first holes; the temperature-sensing unit is located at one side of the second portion, there is a preset distance between the temperature-sensing unit and the second portion.

公开(公告)号：US11725655B2

公开(公告)日：2023-08-15

申请号：US16815140

申请日：2020-03-11

申请人： TOYODA GOSEI CO., LTD.

发明人： Shinya Sakai ,  Wataru Matsumoto

IPC分类号： F04C15/06 ,  F04C2/10

CPC分类号： F04C15/06 ,  F04C2/10 ,  F04C2210/206 ,  F04C2240/30 ,  F05B2280/6015

摘要： An oil pump includes: a housing case made of a metal and having a rotor housing portion in which a rotor is rotatably housed, and a discharge hole through which oil within the rotor housing portion is introduced to the outside of the rotor housing portion by rotation of the rotor; and a housing made of a resin and having a case holding portion in which the rotor housing portion is held, and a discharge groove portion provided on a bottom portion of the case holding portion. The housing case has a fitting groove portion that is provided on a bottom portion of the rotor housing portion and that is fitted to the discharge groove portion so as to cover the discharge groove portion. The discharge hole is formed in the fitting groove portion.

公开(公告)号：US20180254685A1

公开(公告)日：2018-09-06

申请号：US15907361

申请日：2018-02-28

申请人： Nidec Tosok Corporation

发明人： Yusaku SEKI

IPC分类号： H02K11/22 ,  H02K11/33 ,  H02K7/14 ,  F04C2/10 ,  F04C2/08 ,  F04C13/00 ,  F04C15/00

CPC分类号： H02K11/022 ,  F04C2/084 ,  F04C2/10 ,  F04C2/102 ,  F04C13/001 ,  F04C15/008 ,  F04C15/0096 ,  F04C2240/403 ,  F04C2240/808 ,  F04C2270/135 ,  H02K7/14 ,  H02K9/19 ,  H02K9/22 ,  H02K11/33 ,  H02K2211/03

摘要： A motor includes a shaft. The motor includes a motor section and a motor-driving section that is positioned on one side of the motor section in the axial direction and that drives the motor section. The motor section includes a rotor that is rotatable around the shaft, a stator that is disposed outside of the rotor in a radial direction, and a housing that contains the rotor and the stator. The motor-driving section includes a circuit board and a plurality of heat-generating elements mounted on the circuit board. The motor includes an inverter circuit that controls driving of the motor section and an inverter case that contains the inverter circuit. The inverter circuit includes a plurality of blocks including a power source block, a drive block, and a control block, and at least one of the plurality of blocks is separated from the other blocks.

公开(公告)号：US20180245588A1

公开(公告)日：2018-08-30

申请号：US15756227

申请日：2016-08-19

申请人： AISIN SEIKI KABUSHIKI KAISHA

发明人： Atsuo ISODA

IPC分类号： F04C14/22 ,  F04C2/10 ,  F01C21/08 ,  F01M1/16

CPC分类号： F04C14/226 ,  F01C21/0863 ,  F01M1/16 ,  F04C2/10 ,  F04C2/102 ,  F04C15/0026 ,  F04C2210/206 ,  F04C2270/185

摘要： A variable oil pump includes a pump housing, a cover, an oil pump rotor rotationally driven while housed in a housing space between the pump housing and the cover, an adjustment member housed in the housing space to adjust the amount of oil discharged from the oil pump rotor by being displaced due to a drive force while rotatably holding the oil pump rotor from an outer peripheral side, and a guide portion including a groove in the adjustment member and a pin on the pump housing that engage one another. Engagement of the pin and the groove guides displacement of the adjustment member relative to the pump housing. A seal structure on at least one of the pump housing and the cover seals the inside of the groove relative to the housing space by surrounding a movement trajectory of the groove relative to the pin.

公开(公告)号：US20180106251A1

公开(公告)日：2018-04-19

申请号：US15560674

申请日：2016-02-16

申请人： JATCO Ltd

发明人： Atsuyuki IDE

IPC分类号： F04C2/10 ,  F04C15/06

CPC分类号： F04C2/10 ,  F04C14/18 ,  F04C15/0049 ,  F04C15/06 ,  F04C15/064 ,  F04C2250/102

摘要： An oil pump is provided with an inner rotor having external teeth, an outer rotor disposed in a loose-fit state within a pump chamber and having internal teeth meshed with the external teeth, a ring-shaped pressure chamber provided adjacent to the pump chamber in a direction of a rotation axis, a discharge opening for connecting the pump chamber and the pressure chamber, and a cylindrical discharge passage having one end connected to the pressure chamber and the other end serving as a connection opening. A portion of the discharge passage is located to open inside of the outer periphery of the pressure chamber when viewed in the rotation axis direction. The one end reaches to a middle of the pressure chamber when viewed in a radial direction of the rotation axis, and the discharge passage and the pressure chamber are in direct communication with each other.