公开(公告)号：US20170363109A1

公开(公告)日：2017-12-21

申请号：US15695572

申请日：2017-09-05

Applicant: Magna Powertrain, Inc.

Inventor： Liping Wang ,  Vladimir Vukas ,  Jianwen Li ,  Karthikeyan Ganesan

IPC: F04D29/58 ,  F04B53/08 ,  F04D13/06 ,  F04B49/06

CPC classification number: F04D29/5806 ,  F04B49/06 ,  F04B53/08 ,  F04D13/0686 ,  F04D29/5813

Abstract: In an electric motor-driven oil pump assembly for use with an engine in a vehicle, such as with an automatic engine-stop system in which an electric motor-driven oil pump is driven by an electric motor for hydraulic pressure supply to a transmission or engine of an automotive vehicle, at least in a stopped state of a mechanical oil pump driven by the engine, a controller for operating the motor for controlling the oil pump is provided in a housing proximal the flowing oil fluid such that the flowing oil fluid maintains the temperature of the controller below a predetermined temperature to avoid failure of the electronic components of the controller.

公开(公告)号：US20140294647A1

公开(公告)日：2014-10-02

申请号：US14245046

申请日：2014-04-04

Applicant: MAGNA POWERTRAIN INC.

Inventor： Matthew Williamson ,  Manmohan Sehmby ,  Cezar Tanasuca ,  Karthikeyan Ganesan

IPC: F04C18/08

CPC classification number: F04C18/08 ,  F01M1/02 ,  F01M1/16 ,  F01M2001/0238 ,  F01M2001/0246 ,  F04C2/3442 ,  F04C14/226

Abstract: A variable capacity vane pump (20) is provided having a pump control ring (44) that is moveable to alter the capacity of the pump (20). A control chamber (60) is formed between the pump casing (22) and the control ring (44). The control chamber (60) is operable to receive pressurized fluid to create a force to move the control ring (44) to reduce the volumetric capacity of the pump (20). A primary return spring (56) acts between the control ring (44) and the casing (22) to bias the control ring (44) towards a position of maximum volumetric capacity. A shaft is coupled at one end to the control ring and a second end of the shaft is positioned a predetermined distance from the casing (22). A secondary return spring (62) is mounted about the shaft and is configured to engage the control ring (44) after the control ring (44) has moved a predetermined amount. The secondary return spring (62) biases the control ring (44) towards a position of maximum volumetric capacity. The secondary return spring (62) acts against the force of the control chamber (60) to establish a second equilibrium pressure.

Abstract translation: 提供了一种可变容量叶片泵（20），其具有能够改变泵（20）的容量的泵控制环（44）。 控制室（60）形成在泵壳体（22）和控制环（44）之间。 控制室（60）可操作以接收加压流体以产生移动控制环（44）的力，以减小泵（20）的容积。 主回位弹簧（56）作用在控制环（44）和壳体（22）之间，以将控制环（44）偏压到最大容积的位置。 轴在一端连接到控制环，并且轴的第二端定位成与壳体（22）预定的距离。 次级复位弹簧（62）围绕轴安装，并且构造成在控制环（44）移动了预定量之后接合控制环（44）。 次级复位弹簧（62）将控制环（44）偏压到最大容积的位置。 次级复位弹簧（62）抵抗控制室（60）的作用力建立第二平衡压力。

公开(公告)号：US09651046B2

公开(公告)日：2017-05-16

申请号：US14245046

申请日：2014-04-04

Applicant: Magna Powertrain Inc.

Inventor： Matthew Williamson ,  Manmohan Sehmby ,  Cezar Tanasuca ,  Karthikeyan Ganesan

IPC: F04C14/22 ,  F04C18/08 ,  F01M1/02 ,  F01M1/16 ,  F04C2/344

CPC classification number: F04C18/08 ,  F01M1/02 ,  F01M1/16 ,  F01M2001/0238 ,  F01M2001/0246 ,  F04C2/3442 ,  F04C14/226

Abstract: A variable capacity vane pump (20) is provided having a pump control ring (44) that is moveable to alter the capacity of the pump (20). A control chamber (60) is formed between the pump casing (22) and the control ring (44). The control chamber (60) is operable to receive pressurized fluid to create a force to move the control ring (44) to reduce the volumetric capacity of the pump (20). A primary return spring (56) acts between the control ring (44) and the casing (22) to bias the control ring (44) towards a position of maximum volumetric capacity. A shaft is coupled at one end to the control ring and a second end of the shaft is positioned a predetermined distance from the casing (22). A secondary return spring (62) is mounted about the shaft and is configured to engage the control ring (44) after the control ring (44) has moved a predetermined amount. The secondary return spring (62) biases the control ring (44) towards a position of maximum volumetric capacity. The secondary return spring (62) acts against the force of the control chamber (60) to establish a second equilibrium pressure.