Patent · US Expired

Pressure regulator for a fuel supply system of an internal combustion engine

US7258135B2 · kind B2 · utility

2Cited by

13References

15Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Werner Haarer · Mühlacker, DE
Hans-Joerg Fees · Bietigheim-Bissingen, DE
Andreas Peetz · Ludwigsburg, DE
Ralph Ittlinger · Rutesheim, DE

Key dates

Filing date	Dec 6, 2002
Grant date	Aug 21, 2007
Priority date	—
Expiry date	Dec 3, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7927
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A pressure regulator for a fuel supply system of an internal combustion engine for regulating a fuel pressure, including a valve, having a valve ball forced against a valve seat into the closing position by the action of a valve leaf spring. With the valve open, at least some of the fuel flow that flows around the valve ball is deflected against an impact face coupled with the valve leaf spring for generating a flow force oriented counter to the closing force of the valve leaf spring. As a result, the pressure regulating performance of the pressure regulator is improved.

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