Fluid supply system

Claim 1

A FUEL CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE HAVING A FUEL CONTROL DEVICE REQUIRING DELIVERY OF FUEL AT A PREDETERMINED PRESSURE, SAID SYSTEM COMPRISING A TANK, A BOOSTER PUMP CONNECTED TO SAID TANK, AN ENGINE DRIVEN PUMP CONNECTED BETWEEN SAID BOOSTER PUMP AND THE FUEL CONTROL DEVICE, SAID BOOSTER PUMP BEING A POSITIVE DISPLACEMENT VARIABLE STROKE PUMP, PRESSURE REGULATING BYPASS MEANS CONNECTED BETWEEN SAID ENGINE DRIVEN PUMP AND SAID FUEL CONTROL DEVICE SET TO OPEN AT SAID PREDETERMINED PRESSURE, A BYPASS AROUND SAID ENGINE DRIVEN PUMP HAVING A CHECK VALVE THEREIN SET TO OPEN WHENEVER PRESSURE AT THE INLET OF SAID ENGINE DRIVEN PUMP EXCEEDS PRESSURE AT ITS OUTLET BY A SMALL AMOUNT, SAID BOOSTER PUMP HAVING AN ACCUMULATOR CHAMBER AT THE OUTLET SIDE THEREOF, A RELIEF VALVE IN SAID ACCUMULATOR CHAMBER SET TO OPEN ONLY WHEN PRESSURE THEREIN EXCEEDS SAID PREDETERMINED PRESSURE, AND MEANS RESPONSIVE TO PRESSURE AT THE OUTLET OF SAID ENGINE DRIVEN PUMP FOR CONTROLLING THE STROKE OF SAID BOOSTER PUMP.