Fuel injection device for injecting fuel into combustion chamber of internal combustion engine, has control valve with closing body movably guided back and froth at guiding body that is movably guided in valve part relative to closing body

摘要

#CMT# #/CMT# The device (1) has a control valve (3) formed as a solenoid valve for controlling an injection valve unit (10) for releasing and closing an injection opening. The control valve has a closing body (43) movably guided back and froth at a guiding body (23), which is movably guided in or at a valve part (20) relative to the closing body. The guiding body has a guide section (24) guided in the valve part and a stop section (31) with a stop surface (41) for the closing body. The guiding body has another guide section (40) for guiding the closing body. #CMT#USE : #/CMT# Fuel injection device for injecting fuel into a combustion chamber of an internal combustion engine. #CMT#ADVANTAGE : #/CMT# The closing body of the control valve is movably guided back and froth at the guiding body, which is movably guided in or at the valve part relative to the closing body, thus reducing switching times of the control valves, and manufacturing the fuel injection device in a cost-effective manner. The closing body and the guiding body of the control valve precisely reduces unwanted chattering of the fuel injection device during operation of the fuel injection device and reduces impact impulses of the control valve during closing of the control valve, thus reducing wear of a seat of the control valve. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic longitudinal sectional view of an end of a fuel injection device away from a combustion chamber. 1 : Fuel injection device 3 : Control valve 10 : Injection valve unit 20 : Valve part 23 : Guiding body 24, 40 : Guide sections 31 : Stop section 41 : Stop surface 43 : Closing body.