Pressure relief device of an injection system and method for pressure relief of an injection system
AssigneeContinental Automotive GmbH
InventorsDaniel Anetsberger, Reinhard Barth
Life of this patent
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Abstract
For a pressure relief device of an injection system of an internal combustion engine, for an injection system of an internal combustion engine having a pressure relief device and in a pressure relief method of an injection system of an internal combustion engine, a defined fuel pressure of the injection system is reduced to a defined fuel residual pressure upon exceeding a pressure limit above a defined fuel pressure, permitting emergency operation of the internal combustion engine.
Claims13
A pressure relief device of an injection system of an internal combustion engine, wherein the pressure relief device is configured, if a pressure limiting value above a defined fuel pressure of the injection system is exceeded, to reduce the defined fuel pressure to a defined residual fuel pressure which permits emergency operation of the internal combustion engine.
An injection system of an internal combustion engine comprising:
- a) a pump, by way of which a defined fuel pressure can be generated in the injection system,
- b) a fuel distributor rail, to which a plurality of injectors are connected and which is connected to the pump, and
- c) a pressure relief device which is arranged between the pump and the plurality of injectors and by way of which, if a pressure limiting value above the defined fuel pressure is exceeded, the defined fuel pressure can be reduced to a defined residual fuel pressure which permits emergency operation of the internal combustion engine.
A pressure relief method for an injection system of an internal combustion engine, which pressure relief method has the following steps:
- a) arranging of a pressure relief device between a pump and a plurality of injectors,
- b) reducing of a defined fuel pressure of the injection system, if a pressure limiting value above the defined fuel pressure is exceeded, to a defined residual fuel pressure which permits emergency operation of the internal combustion engine.
Dependencies are inferred from the claim text.