Patent · US Active

Fuel injection device for an internal combustion engine

US8146839B2 · kind B2 · utility

0Cited by

5References

14Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Wolfgang Braun · Ditzingen, DE
Dirk Vahle · Lambach, DE
Martin Katz · Los Altos Hills, US
Alexander Wernau · Blaufelden, DE

Key dates

Filing date	Jan 12, 2007
Grant date	Apr 3, 2012
Priority date	—
Expiry date	Jul 2, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2547/001
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injection device for an internal combustion engine includes a housing and a valve element which is arranged in the housing. The valve element interacts, in the region of a fuel outlet opening, with a valve seat. The valve element is embodied by at least one first part and at least one second part which are coupled to one another by means of a hydraulic coupler. The hydraulic coupler has a coupling chamber which is delimited at least partially by a sleeve which is guided on the first part of the valve element. Additionally a guide element guides an end region of the first part of the valve element, which end region being oriented toward the second part of the valve element.

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