Fuel supply system for i.c. engine with fuel high pressure pump in fuel pressure container, supplied by forwarding pump, and control for energizing forwarding pump with power

摘要

The fuel supply system comprises fuel high pressure pump (8) in fuel pressure container (1) and fuel forwarding pump (5) to supply the high pressure pump. There is a control (2) for energizing forwarding pump. The energizing power is so chosen as to provide input of high pressure pump with max. pressure independence on fault in fuel system. Pref., in non energized state, the high pressure pump permits fuel flow into fuel pressure container. Independent claims are included for method of controlling fuel supply system.