Patent · US Expired

Valve

US5261639A · kind A · utility

2Cited by

3References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Frank Bantien · Ditzingen, DE
Udo Jauernig · Lichtenstein, DE
Hans-Peter Trah · Reutlingen, DE
Kurt Weiblen · Metzingen, DE

Key dates

Filing date	Nov 10, 1992
Grant date	Nov 16, 1993
Priority date	—
Expiry date	Nov 10, 2012

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M61/1853
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A valve for metering a fluid including a small upper plate, a small middle plate and a small lower plate. The small middle plate has a closing element with a diaphragm region surrounding the closing element. The stroke of the closing element is limited in an axial direction by the small upper plate and by a valve seat of the small lower plate. As a result, very accurate metering of the fluid is possible. The valve is especially suitable as an injection valve for injection systems of mixture-compressing internal combustion engines with externally supplied ignition.

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