Patent ID: 6315216
Filing Date: 2001-11-13
Classification: F02M

Abstract:
An injector comprising a multilayer piezoelectric actuator for injection systems of common rail diesel fuel injection systems of motor vehicles, in which the body of the piezoelectric actuator (11) has a square or rectangular cross-sectional contour and is seated, together with a two-legged prestressing bracket that is mounted along opposed outer sides of the actuator body (11), inside a longitudinal bore (9; 19; 29; 39; 49) of the injector body (10; 20; 30; 40; 50), the longitudinal bore (9; 19; 29; 39; 49) has a polygonal cross-sectional shape with rounded corners, the shape is adapted to the cross-sectional contour of the actuator body and the prestressing bracket, so that outside the longitudinal bore, space is created in the injector body for a high-pressure bore (14) located parallel to the longitudinal bore of the injector.