Fuel injector for motor vehicle, has reliefs formed by blades which are configured and oriented such that movement of high pressure fuel flowing from conduit till lower end of needle produces rotation of needle with respect to body

摘要

The injector has a needle (6) extending along a longitudinal axis (4) of a body (2), and reliefs formed by blades (60). The reliefs are integrated to the needle and are carried by an rear mass (24) of the needle. The blades are configured and oriented such that the movement of a high pressure fuel flowing from a high pressure conduit (22) till an lower end of the needle to contact the blades produces rotation of the needle with respect to the body.