Fuel control valve

Claim 1

AN AUTOMOTIVE FUEL PUMPING COMBINATION OF THE DIAPHRAGM TYPE BACK TO VARY THE PUMPING STROKE WITH VARYING FUEL BACK PRESSURE TO REGULATE THE FUEL OUTPUT PRESSURE COMPRISING A FIRST HOUSING; DIAPHRAGM PUMPING MEANS CARRIED BY SAID FIRST HOUSING; A SECOND HOUSING COMPRISING AN INFLOW CHAMBER, AN OUTFLOW CHAMBER AND VALVE MEANS IN EACH OF SAID CHAMBERS FOR ESTABLISHING FLUID FLOW COMMUNICATION WITH THE DIAGRAM PUMPING MEANS; A REMOVABLE COVER HOUSING FOR SAID SECOND HOUSING; A FURTHER SEPARATOR HOUSING INTERPOSED BETWEEN AND COUPLED TO BOTH THE SECOND HOUSING AND THE REMOVABLE COVER HOUSING; SAID FURTHER HOUSING INCLUDING INLET AND OUTLET PASSAGES THERETHROUGH TO ESTABLISH FLUID COMMUNICATION WITH THE INFLOW CHAMBER AND THE OUTFLOW CHAMBER RESPECTIVELY OF SAID SECOND HOUSING; A PRESSURE REGULATING CHECK-VALVE IN SAID OUTLET PASSAGE NORMALLY CLOSING SAID OUTLET PASSAGE UP TO A PREDETERMINED FUEL OUTPUT PRESSURE; SAID OUTLET PASSAGE COMPRISING A BYPASS AROUND THE FUEL PUMPING COMBINATION; SAID FUEL PUMPING COMBINATION INCLUDING FUEL INGRESS AND EGRESS PORTS TO SAID CHAMBERS; SAID FURTHER HOUSING BEING ADAPTED TO CONVERT PUMPS NOT HAVING A BYPASS CAPABILITY TO PUMP WITH SUCH A CAPABILITY BY VIRTUE OF THE ADDITION OF SAID FURTHER HOUSING.