Patent · US Active

Decoupling element for a fuel injection device

US8757128B2 · kind B2 · utility

5Cited by

4References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Michael Fischer · Mühlacker, DE
Friedrich Moser · Magstadt, DE
Markus Friedrich · Moosburg an der Isar, DE

Key dates

Filing date	Apr 28, 2009
Grant date	Jun 24, 2014
Priority date	—
Expiry date	Aug 24, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/8053
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injection device includes at least one fuel injector, one mounting hole in a cylinder head for the fuel injector, and a decoupling element between a valve housing of the fuel injector and the wall of the mounting hole. As a lenticular spring element, the decoupling element has a nonlinear, progressive spring characteristic curve, such that a low rigidity of the decoupling element prevails during idle operation and a high rigidity of the decoupling element prevails during nominal system pressure.

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