公开(公告)号：US20020069919A1

公开(公告)日：2002-06-13

申请号：US09732232

申请日：2000-12-07

Applicant: Delphi Technologies, Inc.

Inventor： David Fredrick Reuter ,  E. Wayne Lloyd ,  Alejandro Moreno

IPC: F15B013/044

CPC classification number: B60T8/4872 ,  B60T8/363 ,  Y10T137/0396 ,  Y10T137/86622 ,  Y10T137/86984 ,  Y10T137/87507 ,  Y10T137/87563

Abstract: The invention is a two-stage, two-poppet prime valve assembly for use in high pressure applications such as vehicle braking systems. The valve assembly has two valve seats and two plungers for allowing the valve assembly to open under high pressure while providing minimal internal flow restrictions to enhance cold temperature and low pressure operation. The two-stage, two poppet valve assembly contains two separate flow paths, one being high pressure, relatively low flow called a stage one, and the other being relatively low pressure, high flow called a stage two. In addition, the valve incorporates a reverse flow bypass feature that is capable of controlling flow at very high pressure and allowing reverse flow with a very low pressure drop.

Abstract translation: 本发明是用于诸如车辆制动系统的高压应用中的两级双阀座主阀组件。 阀组件具有两个阀座和两个柱塞，用于允许阀组件在高压下打开，同时提供最小的内部流量限制以增强冷温度和低压操作。 两级两个提升阀组件包含两个独立的流动路径，一个是高压，一个相对较低的流量称为一个，另一个是相对较低的压力，称为二级的高流量。 此外，该阀还具有逆流旁路功能，能够在非常高的压力下控制流量，并允许以非常低的压降进行逆流。