Fuel injector for common rail diesel injection system, has seal bushing arranged under formation of valve chamber that surrounds valve bolt and seal bushing such that high pressure strength of valve chamber is optimized

摘要

The injector has a solenoid operated actuator module (2) and a coupler module (25) arranged in a support body (1). A valve plate (9) is arranged between the coupler module and a throttle plate (11). The valve plate comprises a valve that is operated by the coupler module. A valve bolt (4) forms a sealing surface (7) with a seat surface (8) of the valve plate. A seal bushing (5) is arranged under a formation of a valve chamber (10) that surrounds the valve bolt and the seal bushing such that high pressure strength of the valve chamber is optimized.