Patent · US Expired

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

US6983762B2 · kind B2 · utility

3Cited by

7References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Tony Wheeler · Anderson, US
Kasimir Stromski · Echterdingen, DE
Andreas Peetz · Ludwigsburg, DE
Wolfgang Gabauer · Asperg, DE

Key dates

Filing date	Dec 10, 2002
Grant date	Jan 10, 2006
Priority date	—
Expiry date	Dec 10, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7927
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The invention relates to a pressure regulator for a fuel delivery system of an internal combustion engine for regulating a fuel pressure, including a valve, which has a valve ball that is pressed against a valve seat in the closed position by the action of a valve leaf spring. A segment of a hemisphere of the valve ball oriented toward the valve leaf spring protrudes into a recess associated with the valve leaf spring. This improves the noise behavior and regulating behavior of the pressure regulator.

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