Patent ID: 7066410
Filing Date: 2006-06-27
Classification: F02M,F16J

Abstract:
1. A common rail injector for injecting fuel in a common rail injection system of an internal combustion engine, comprising an injector housing ( 1 ), which communicates with a central high-pressure reservoir and in which a nozzle needle is axially displaceable in order to adjust the injection as a function of the pressure in a control chamber, and an annular sealing ring ( 6 ), which is disposed in an annular chamber ( 3 ) that is provided between a valve element ( 2 ) and the injector housing ( 1 ), and in addition to the sealing ring ( 6 ), a continuous annular support disc ( 7 ) is disposed in the annular chamber ( 3 ) between the valve element ( 2 ) and the injector housing ( 1 ), the support disc ( 7 ) engaging and supporting the sealing ring and engaging the valve element around its inner circumference.