Fuel injector for an internal combustion engine (ICE) in a motor vehicle has direct needle control according to a tractive actuator principle for fitting on an ICE's combustion chamber

摘要

#CMT# #/CMT# An injector body (2) holds an actuator (3) to generate an activating force (AF) and works together with a coupler unit (CU) (5). The AF moves a jet needle (JN) (4) that fits into a jet/nozzle body with openings sealed by the JN for injecting fuel. A transmission unit (6) fits between the CU and the JN. #CMT#USE : #/CMT# For injecting fuel in a motor vehicle's internal combustion engine. #CMT#ADVANTAGE : #/CMT# By being in contact with the coupler unit (CU) while forming a first power-transmission surface in a first control space (7) and by being in contact with the jet needle (JN) while forming a second power-transmission surface in a second control space (8), the transmission unit operates so that it is designed to move in the opposite direction to the CU and the JN so as to cause force-transmitted movement in the JN. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a longitudinal cross-sectional diagram of a fuel injector. 1 : Fuel injector 2 : Injector body 3 : Actuator 4 : Jet needle 5 : Coupler unit 6 : Transmission unit 7 : First control space 8 : Second control space.