公开(公告)号：US3850549A

公开(公告)日：1974-11-26

申请号：US33469473

申请日：1973-02-22

Applicant: DANFOSS AS

Inventor： HANSEN G ,  RONO CLAUSEN J

IPC: F04B39/08 ,  F04C14/06 ,  F04C14/26

CPC classification number: F04C14/26 ,  F04C14/06

Abstract: The invention relates to an oil pump assembly comprising a casing in which pumping elements are disposed and in which fluid intake and exhaust passages are formed. A bypass passage with valve means therein is between the intake and exhaust passages. An electromagnet is mounted in the casing and the armature thereof is associated with and operates the valve means. The electromagnet is controlled jointly with the motor which drives the pump assembly in a manner such that the valve means are closed when pump assembly is operating and open when the pump assembly is turned off. The opening of the valve means in this manner permits pressurized fluid to be bypassed to the intake passage such that the usual pressure regulating and cut-off valve connected to the exhaust or pressure outlet side will close instantaneously upon the motor being turned off by reason of the instantaneous reduction of pressure caused by the instantaneous bypassing of the pressurized fluid.

Abstract translation: 本发明涉及一种油泵组件，其包括壳体，其中设置有泵送元件，并且其中形成有流体进入和排出通道。 其中具有阀装置的旁通通道位于进气通道和排气通道之间。 电磁铁安装在壳体中，其电枢与阀装置相关联并操作。 电动机与驱动泵组件的电动机一起控制，使得当泵组件运行时阀装置关闭，并且当泵组件关闭时打开该装置。 以这种方式打开阀装置允许加压流体旁路到进气通道，使得连接到排气或压力出口侧的通常的压力调节和截止阀将在马达被关闭时瞬间闭合，原因是 由加压流体的瞬时旁路引起的压力的瞬时减小。

公开(公告)号：US3752602A

公开(公告)日：1973-08-14

申请号：US3752602D

申请日：1971-08-11

Applicant: DANFOSS AS

Inventor： HANSEN G ,  RONO CLAUSEN J

IPC: F04C14/06 ,  F16K31/10 ,  F04B49/00

CPC classification number: F04C14/06 ,  F16K31/10

Abstract: The invention relates to an oil pump assembly comprising a casing in which pumping elements are disposed and in which fluid intake and exhaust passages are formed. A bypass passage with valve means therein is between the intake and exhaust passages. An electromagnet is mounted in the casing and the armature thereof is associated with and operates the valve means. The electromagnet is controlled jointly with the motor which drives the pump assembly in a manner such that the valve means are closed when pump assembly is operating and open when the pump assembly is turned off. The opening of the valve means in this manner permits pressurized fluid to be bypassed to the intake passage such that the usual pressure regulating and cut-off valve connected to the exhaust or pressure outlet side will close instantaneously upon the motor being turned off by reason of the instantaneous reduction of pressure caused by the instantaneous bypassing of the pressuized fluid.

Abstract translation: 本发明涉及一种油泵组件，其包括壳体，其中设置有泵送元件，并且其中形成有流体进入和排出通道。 其中具有阀装置的旁通通道位于进气通道和排气通道之间。 电磁铁安装在壳体中，其电枢与阀装置相关联并操作。 电动机与驱动泵组件的电动机一起控制，使得当泵组件运行时阀装置关闭，并且当泵组件关闭时打开该装置。 以这种方式打开阀装置允许加压流体旁路到进气通道，使得连接到排气或压力出口侧的通常的压力调节和截止阀将在马达被关闭时瞬间闭合，原因是 由压力流体的瞬时旁路引起的压力瞬间减小。