Patent · US Active

Decoupling element for a fuel injection device

US9057349B2 · kind B2 · utility

0Cited by

1References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Michael Fischer · Mühlacker, DE
Andrej Elsinger · Ditzingen, DE
Frank-Holger Schoefer · Sachsenheim, DE
Corren Heimgaertner · Stuttgart, DE
Michael Kleindl · Schwieberdingen, DE

Key dates

Filing date	Nov 26, 2009
Grant date	Jun 16, 2015
Priority date	—
Expiry date	Jul 24, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/09
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A decoupling element for a fuel injection device provides a low-noise construction. The fuel injection device has at least one fuel injection valve and a receiving bore in a cylinder head for the fuel injection valve as well as the decoupling element between a valve housing of the fuel injection valve and a wall of the receiving bore. The spring rigidity of the decoupling element is so low and the decoupling element is placed between the valve housing of the fuel injection valve and the wall of the receiving bore in such a way that the decoupling resonance is located in the frequency range below 2.5 kHz. The fuel injection device is particularly suitable for the direct injection of fuel into a combustion chamber of a mixture-compressing spark-ignited internal combustion engine.

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