公开(公告)号：US20080317618A1

公开(公告)日：2008-12-25

申请号：US11865162

申请日：2007-10-01

Applicant: Youngkyu KIM

Inventor： Youngkyu KIM

IPC: F04B11/00

CPC classification number: F04B11/0091 ,  B60T8/4031

Abstract: The present invention provides a pulsation pressure decreased type pump. When an oil pump that is driven by a motor during the operation of an electronically controlled brake system discharges a working fluid, the working fluid passes through an annular orifice provided at a position where the working fluid is discharged and is then discharged to an outlet of a pump housing through an outflow channel formed in the orifice so as to decrease a pulsating pressure using a piston reciprocated by a cam. Therefore, it is possible to decrease a pulsating pressure generated in the pump from 20 bar to 5 bar or less.

Abstract translation: 本发明提供一种脉动减压型泵。 当在电子控制的制动系统的操作期间由电动机驱动的油泵排出工作流体时，工作流体通过设置在工作流体排出的位置处的环形孔，然后排出到 通过形成在孔中的流出通道的泵壳体，以便使用由凸轮往复运动的活塞来减小脉动压力。 因此，可以将泵中产生的脉动压力从20巴减小到5巴以下。