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US 8,757,128 B2Granted
Decoupling element for a fuel injection device
AssigneeRobert Bosch GmbH
InventorsMichael Fischer, Friedrich Moser, Markus Friedrich
Life of this patent
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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.
Claims12
A fuel injection device of an internal combustion engine, comprising:
- at least one fuel injector having a valve housing;
- a mounting hole for the fuel injector;
- and
- a decoupling element provided between the valve housing of the fuel injector and a wall of the mounting hole, wherein the decoupling element has a nonlinear, progressive spring characteristic curve to provide a low rigidity during idle operation and a high rigidity during nominal system pressure.
1 more element
Dependencies are inferred from the claim text.