A controlled-pressure fuel-supply system for an internal combustion engine, particularly for motor vehicles

摘要

The system comprises a hydraulic pump (P) driven by an electric motor (M), a pressure sensor (5) associated with the pump (P) for supplying an electrical signal indicative of the pressure of the fuel at the output or delivery (3) of the pump (P), and a control unit (ECU), associated with the electric motor (M) of the pump (P) and connected to the pressure sensor (5), for varying the operating point of the electric motor (M) in dependence on the fuel pressure indicated by the sensor (5) so as to keep the pressure at a substantially constant value. <IMAGE>