Injector and contact elements therefor

Abstract

The invention relates to an injector of an injection system of an internal combustion engine. The injector has an injector housing, a piezoelectric actuator control unit, a connection plug on the head of the injector housing, and an electrical connection between the control unit and the connection plug within the injector housing. The electrical connection comprises a contact element with elastic means for supporting the contact element against the control unit or against the connection plug. One end of the contact element bears against the control unit or the connection plug, while the other end is arranged with a corresponding spacing therefrom. In this way, movements and thermal expansions of the control unit can be compensated.

Description

technical field

[0001] The invention relates to an injector of an injection system of an internal combustion engine with an injector housing, with a piezo actuator control unit, with a connecting plug on the head of the injector housing, and with an injector housing The electrical connection between the control unit in the body and the connection plug. Background technique

[0002] Injectors of this type are known. The piezoelectric actuator control unit is in this case located close to the nozzle unit. For the electrical contacting of the control unit, a connecting plug arranged on the head of the associated injector housing is used. Therefore, it is necessary to provide an electrical connection between the piezoelectric actuator control unit and the connection plug for supplying electrical energy to the control unit. The electrical connection must protect against external vibrations of the internal combustion engine and also against internal vibrations of the control un...

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