Patent · US Active

Fuel injector with coupler

US7992810B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andreas Kellner · Birkenau, DE
Holger Rapp · Hemmingen, DE
Martin Katz · Los Altos Hills, US

Key dates

Filing date	Dec 28, 2007
Grant date	Aug 9, 2011
Priority date	—
Expiry date	Apr 17, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M61/167
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a fuel injector having a coupler. The reciprocating movement of an actuator is transmitted by the coupler to a pin-shaped injection valve member which is guided into the nozzle body. The coupler has a valve piston and a coupler sleeve, and the valve piston is displaced in the inner diameter area of the coupler sleeve. The inner diameter of the coupler sleeve is greater than the outer diameter of the injection valve member. The difference between the inner diameter of the coupler housing and the outer diameter of the injection valve member is 0.2 mm or less.

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