公开(公告)号：US20240309868A1

公开(公告)日：2024-09-19

申请号：US18604051

申请日：2024-03-13

Applicant: COAVIS

Inventor： Hyuntae LEE ,  Wookeun LEE

IPC: F04C2/10 ,  F01M1/02

CPC classification number: F04C2/103 ,  F01M1/02 ,  F01M2001/0215 ,  F01M2001/0238 ,  F01M2001/0292

Abstract: Provided is an electronic oil pump which may circulate oil by driving an electric motor, and more particularly, an electronic oil pump which may vary a cross-sectional area of a pumping passage based on an oil viscosity, and include a cooling passage for cooling a motor.

公开(公告)号：US11867177B2

公开(公告)日：2024-01-09

申请号：US18154029

申请日：2023-01-12

Applicant: MIKUNI CORPORATION

Inventor： Yasuhiro Ino

IPC: F04C15/06 ,  F04C2/10 ,  F01M1/02 ,  F04C29/12 ,  F04C14/24 ,  F04C14/26

CPC classification number: F04C2/103 ,  F01M1/02 ,  F04C29/12 ,  F01M2001/0238

Abstract: A pump device includes a housing, a pump element, and an on-off valve. The housing includes a suction passage defining a suction port at an upstream end, a discharge passage defining a discharge port at a downstream end, and a return passage returning a part of a fluid flowing through the discharge passage to midway of the suction passage. The pump element is accommodated in the housing and rotates around a predetermined axis to suck, pressurize, and discharge a fluid. The on-off valve opens and closes the return passage. In the suction passage upstream of an opening at which the return passage is opened to the suction passage, the housing includes a directional wall which directs a flow of a suction fluid sucked into the suction passage from the suction port to divert from a flow of a return fluid returned from the return passage.

公开(公告)号：US11821425B2

公开(公告)日：2023-11-21

申请号：US17719208

申请日：2022-04-12

Applicant: KAWASAKI MOTORS, LTD.

Inventor： Takahiro Yano

IPC: F04C2/10 ,  F02B75/00 ,  F01M1/02

CPC classification number: F04C2/10 ,  F02B75/007 ,  F04C2/102 ,  F01M2001/0238 ,  F01M2001/0284 ,  F04C2210/206 ,  F04C2240/20 ,  F04C2240/30 ,  F04C2240/60

Abstract: A pump shaft support structure includes: a crankcase body which rotatably supports a crankshaft of an engine; a pump shaft which interlockingly rotates with the crankshaft; a crankcase cover which covers the crankcase body; a pump cover which is coupled to the crankcase cover to define a pump chamber therebetween; and a pump rotor which is disposed in the pump chamber and engages with the pump shaft. The pump shaft includes: a supported section which is rotatably supported by the pump cover on the other side of the pump chamber from the crankcase cover; and an insertion section adjoining the supported section in an axial direction. The pump cover has a through bore which passes the insertion section of the pump shaft therethrough. The insertion section of the pump shaft has a diameter smaller than that of the supported section.

公开(公告)号：US20190249663A1

公开(公告)日：2019-08-15

申请号：US15895046

申请日：2018-02-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert Parrish ,  Michael P. Fannin ,  Ted T. Selever

IPC: F04C15/00 ,  F04C2/10 ,  F04C13/00 ,  F04C15/06 ,  F01M1/02

CPC classification number: F04C15/0092 ,  F01M1/02 ,  F01M2001/0238 ,  F04C2/10 ,  F04C13/005 ,  F04C15/0038 ,  F04C15/0076 ,  F04C15/06 ,  F04C2210/14 ,  F04C2240/50 ,  F04C2240/809

Abstract: A gerotor pump assembly, and a system and method for operating a gerotor pump assembly, result in a lubrication strategy for operating in a loss-of-prime mode. An inner drive gear may be rotated in a first direction and in a second opposite direction about an axis of rotation. The inner drive gear has a number of projections extending outwardly therefrom. An outer driven gear surrounds the inner drive gear and defines a number of recessions along an inner surface configured to engage with the projections of the inner drive gear. The outer driven gear and the inner drive gear further define at least one dynamically-changing fluid cavity therebetween. The inner drive gear and the outer driven gear define an oil transfer volume clearance between a projection and a recession in a fully engaged position. Oil is maintained within the oil transfer volume clearance as the inner drive gear is rotated.

公开(公告)号：US20190234255A1

公开(公告)日：2019-08-01

申请号：US16259249

申请日：2019-01-28

Applicant: AISIN SEIKI KABUSHIKI KAISHA

Inventor： Tetsuya JINNOUCHI ,  Hirohito TERASHIMA

IPC: F01M1/02 ,  F01M1/16 ,  F16N13/20

CPC classification number: F01M1/02 ,  F01M1/16 ,  F01M2001/023 ,  F01M2001/0238 ,  F01M2001/0246 ,  F01M2001/0253 ,  F01M2001/0292 ,  F16N13/20

Abstract: A variable oil pump includes a pump housing, an oil pump rotor accommodated in the pump housing, an adjustment member accommodated in the pump housing and configured to adjust a discharge amount of oil discharged from the oil pump rotor by displacing in a state where the adjustment member holds the oil pump rotor from an outer circumferential side in such a manner that the oil pump rotor is rotatable, and a guide portion including a guide hole provided at the adjustment member and a pin provided at the pump housing and engaging with the guide hole. The guide portion is configured to guide a displacement of the adjustment member relative to the pump housing by allowing the guide hole and the pin to engage with each other. The variable oil pump includes a drain passage configured to drain oil accumulated in the guide hole.

公开(公告)号：US20180266287A1

公开(公告)日：2018-09-20

申请号：US15914577

申请日：2018-03-07

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shingo OKAZAWA ,  Michitaka YAMAMOTO

IPC: F01M1/16 ,  F01M1/02 ,  F16N27/02 ,  F16N13/20 ,  F16N7/38

CPC classification number: F01M1/16 ,  F01M1/02 ,  F01M2001/0238 ,  F01M2001/0246 ,  F16N7/38 ,  F16N13/20 ,  F16N27/02 ,  F16N2210/04 ,  F16N2250/04 ,  F16N2250/08 ,  F16N2270/70 ,  F16N2280/00

Abstract: An oil supply device includes an oil pump and an oil control valve. The oil control valve is connected to a control oil chamber of the oil pump via a control oil passage that includes an oil descent passage and an oil rise passage. One end of the oil descent passage on the control oil chamber side is disposed at a position closer to a bottom of the vehicle than the other end on the oil control valve side. The oil rise passage is disposed at a position closer to the control oil chamber side than the oil descent passage. One end of the oil rise passage on the control oil chamber side is disposed at a position closer to a top of the vehicle than the other end on the oil control valve side.

公开(公告)号：US20180202330A1

公开(公告)日：2018-07-19

申请号：US15873821

申请日：2018-01-17

Applicant: Ford Global Technologies, LLC

Inventor： Anthemios Petridis ,  Gautam Chatterji

IPC: F01M1/10 ,  F01M1/02 ,  F01M1/16 ,  B01D35/00 ,  B01D35/30

CPC classification number: F01M1/10 ,  B01D35/005 ,  B01D35/30 ,  B01D2201/302 ,  B01D2201/605 ,  F01M1/02 ,  F01M1/16 ,  F01M2001/023 ,  F01M2001/0238 ,  F01M2001/0246 ,  F16N13/04 ,  F16N13/10 ,  F16N39/06

Abstract: Systems are provided for an oil system including a filter with a large surface area. In one example, a system may include an oil filter with a prismatic shape. This shape may include a filter surface area greater than an inlet area of an oil port and the filter surface area may also be located a distance away from the oil port.

公开(公告)号：US10018083B2

公开(公告)日：2018-07-10

申请号：US14884291

申请日：2015-10-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sean M. McGowan ,  Bryan K. Pryor ,  John Byron Davis

IPC: F01M1/02 ,  F04C2/18 ,  F01M1/12 ,  F04C15/00

CPC classification number: F01M1/02 ,  F01M1/12 ,  F01M2001/0238 ,  F01M2001/123 ,  F01M2001/126 ,  F04C2/18 ,  F04C15/0026

Abstract: A fluid pump includes a housing defining a cavity. An end plate is disposed within the cavity and divides the cavity into a gear section and an end section. A gear set is disposed within the gear section and comprises at least one gear rotatable about an axis. The end plate is movable longitudinally along the axis for compressing the gear set. A channel is in fluidic communication with the end section for supplying a fluid to the end section to force the plate toward the gear set.

公开(公告)号：US20180187676A1

公开(公告)日：2018-07-05

申请号：US15737595

申请日：2016-03-31

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Koji SAGA ,  Yasushi WATANABE ,  Hideaki OHNISHI ,  Atsushi NAGANUMA

IPC: F04C14/22 ,  F04C2/344 ,  F04C13/00 ,  F04C15/00 ,  F04C15/06 ,  F01M1/02

CPC classification number: F04C14/226 ,  F01M1/02 ,  F01M2001/0238 ,  F01M2001/0246 ,  F01M2001/0269 ,  F04C2/344 ,  F04C2/3441 ,  F04C13/001 ,  F04C15/0003 ,  F04C15/008 ,  F04C15/06 ,  F04C2210/206

Abstract: In a variable displacement type oil pump, a swing member accommodates a pump forming member, and swings to vary a quantity of change of a volumetric capacity of each pump chamber. A biasing member biases the swing member in a direction to increase the quantity of change of the volumetric capacity of each pump chamber. A first control oil chamber applies a first torque to the swing member in a direction to reduce the quantity of change of the volumetric capacity of each pump chamber. A second control oil chamber applies a second torque to the swing member in a direction to increase the quantity of change of the volumetric capacity of each pump chamber, wherein the second torque is larger than the first torque. A switching mechanism switches between supply and drain of working oil with respect to the second control oil chamber.

公开(公告)号：US09932982B2

公开(公告)日：2018-04-03

申请号：US14958035

申请日：2015-12-03

Applicant: Schwäbische Hüttenwerke Automotive GmbH

Inventor： Holger Braasch

IPC: F03C4/00 ,  F04C2/00 ,  F04C14/18 ,  F04C14/20 ,  F04C2/344 ,  F04C14/22 ,  F01C21/10 ,  F01M1/02 ,  F04C18/344 ,  F04C28/20 ,  F04C2/10

CPC classification number: F04C14/20 ,  F01C21/10 ,  F01M1/02 ,  F01M2001/0238 ,  F01M2001/0246 ,  F04C2/10 ,  F04C2/344 ,  F04C14/226 ,  F04C18/344 ,  F04C28/20

Abstract: A rotary pump exhibiting an adjustable specific delivery volume, the rotary pump including a housing featuring a delivery chamber for a fluid feed; a delivery rotor in the delivery chamber; a setting structure which surrounds the delivery rotor, a spring exerting a spring force which acts on the setting structure in a first setting direction; a setting pressure chamber for applying a setting pressure of a setting fluid, which acts counter to the spring force in a second setting direction, to the setting structure; and a housing abutment, wherein the setting structure includes: a recess on a circumference; and a counter abutment for the housing abutment in the recess.