Hydraulic system with connecting chamber at end of bore

摘要

The system is provided with a connecting chamber (13) at the end of the bore (11) to accommodate the piston (10). The piston has a seating surface (19) which engages withthe chamber top face (16). The latter accommodates an inlet (20) for the supply of pressure fluid to the piston. - A valve controls the delivery of pressure fluid to the inlet (20). When the valve opens, the piston seating surface is disengaged from the chamber top face and fuel is supplied from the pump.