Patent · US Expired

Fuel injection pump for internal combustion engines

US4459086A · kind A · utility

10Cited by

5References

2Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Walter Hafele · Fellbach, DE
Bernhard Schenk · Eppelheim, DE

Key dates

Filing date	Aug 25, 1982
Grant date	Jul 10, 1984
Priority date	—
Expiry date	Aug 25, 2002

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7776
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The support of a relief valve in a constant pressure relief valve of the fuel injection pump comprises a bolt and two openings for receiving it in the sheath-like wall of the movable valve closing body. The openings are embodied by a bore drilled through the wall of the valve closing body at right angles to the longitudinal axis of the valve closing body. The bolt receives a spring plate of a spring of the relief valve in a depression and is thereby positioned and secured.

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