Patent · US Expired

High-pressure valve

US6920898B2 · kind B2 · utility

0Cited by

7References

18Claims

0Family size

Assignee

PIERBURG GMBH · DE

Inventors

Rolf Lappan · Cologne, DE
Martin Nowak · Leverkusen, DE
Michael-Thomas Benra · Castrop-Rauxel, DE
Dirk Hunkel · Aachen, DE

Key dates

Filing date	Feb 5, 2003
Grant date	Jul 26, 2005
Priority date	—
Expiry date	Apr 19, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/86976
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A high-pressure valve comprises an intake channel and two outlet channels. Further, an actuator is provided for opening and closing the outlet channels. According to the invention, the actuator is provided with a connection channel. The connection channel makes it possible to reduce a pressure difference between the intake channel and the closed outlet channel prior to opening the outlet channel. For this purpose, a channel opening will be opened by displacement of a control element arranged in the connection channel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.