Patent · US Expired

Fuel injection valve

US6170763A · kind A · utility

63Cited by

7References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Heinz Fuchs · Homberg (Efze), DE
Gunter Dantes · Eberdingen, DE
Jorg Heyse · Markgröningen, DE

Key dates

Filing date	Sep 29, 1998
Grant date	Jan 9, 2001
Priority date	—
Expiry date	Sep 29, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S239/90
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel inject includes an orifice plate which is arranged on a valve-seat member, particularly at its downstream end face, the valve-seat member having a fixed valve seat, the orifice geometry of the orifice plate being bounded by the valve-seat member, so that the flow ratios in the orifice plate are influenced by the valve-seat member. The valve-seat member covers an upper inlet region of the orifice plate, at least to the extent that downstream outlet orifices of the orifice plate are overlapped. The fuel injector is particularly suited for use in fuel systems of mixture-compressing internal combustion engines with externally supplied ignition.

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