Fuel cut-off device for internal combustion engine; has cylindrical body with valve seat in fuel passage and piston with slide section forming valve body in fuel passage

摘要

The device (10) has a cylindrical body (6) with a valve seat (69) in a fuel passage (61). A piston (30) has a slide section (31) that moves axially in the fuel passage and forms one piece with a valve body (32) to close the fuel passage when it sits on the valve seat. A central bore (311) in the piston is connected to a fuel inlet (361) in the cylindrical body and has an opening (33). A spring (34) between the slide section and the valve seat biases the piston to lift the valve body from the valve seat.