Fuel injection pump for IC engine - has ring slide, which is moved to engage sealing on wall of recess in cylinder bore via ring seal

摘要

A ring slide (13) moves on the piston in a recess (11) of the cylinder bore. The lower slide side (17) forms a control edge, and the slide has radial control bores (23), acting with a groove (24) in the recess. The ring slide is moved, until its side engages sealing on a wall (40), which extends parallel to the slide side. The wall axially limits the cylinder bore recess on the side away from the pump working chamber. A sealing element, pref. a ring, is located between the lower slide side and the wall. ADVANTAGE - Quick and safe switching-off of engine during emergencies.