Patent ID: 7385335
Filing Date: 2008-06-10
Classification: F02M,H01R

Abstract:
1. An injection valve for a fuel injection system in an internal combustion engine, said valve comprising a housing having a metering opening, the opening and closing of the housing controlled by the movement of an axially moveable valve needle, an axially extendable piezoelectric actuator cooperating with the valve needle to control its axial movement, a thermal compensator unit cooperating with the piezoelectric actuator and the housing to compensate for different thermal expansions of the housing and the piezoelectric actuator to ensure elastic contact between an end stop of the housing, the piezoelectric actuator and the valve needle, and an electrical connector for supplying electrical power to the piezoelectric actuator, said electrical connector comprising a connector body having a first set of pins rigidly mounted in the connector body adapted to be connected with an external power supply, and a second set of pins axially moveably mounted in the connector body electrically connected to the first set of pins and providing electrical contact to the piezoelectric actuator.