Fuel pump safety circuitry

Abstract

Abstract VEHICLE CIRCUITRY HAVING PROVISIONS FOR INCREASING THE FUEL TRANSFER CAPABILITY OF A FUEL PUMP WHEN STARTING AN ENGINE. PREVENTING THE FUEL PUMP FROM TRANSFERRING FUEL TO THE ENGINE WHEN THE ENGINE IS FLOODED, OPERATNG THE FUEL PUMP AT A PLURALITY OF SPEEDS IN ACCORDANCE WITH THE ENGINE THROTTLE SETTING, ADVISING A VEHICLE OPERATOR THAT THE ENGINE OIL PRESSURE IN THE VEHICLE IS INSUFFICIENT TO PROPERLY LUBRICATE THE ENGINE BY ENERGIZING A TELLTALE NETWORK THAT IS NORMALY USED TO MONITOR VARIOUS OTHER CONDITIONS IN THE VEHICLE, STOPPING THE ENGINE BY REMOVING ITS SUPPLY OF FUEL WHEN THE ENGINE LOSES OIL PRESSURE AND PERMITTING THE VEHICLE OPERATOR TO TEMPORARILY MAINTAIN THE SUPPLY OF FUEL TO THE ENGINE WHEN THE ENGINE LOSES OIL PRESSURE BY MANIPULATNG AN IGNITION SWITCH CHECKING THE OPERATIVENESS OF THE TELLTALE NETWORK BY COMPLETING CURRENT PATHS TO GROUND THROUGH A PLURALITY OF TELLTALES AND A GENERATOR FIELD WINDING WHEN THE ENGINE IS STOPPED AND THE IGNITION SWITCH IS IN AN ENGINE ON SETTING, AND ENERGIZING A GENERATOR TELLTALE WHEN A RECTIFIER IN A RECTIFIER NETWORK IS INOPERATIVE AND THE IGNITION SWITCH IS IN AN ENGINE OF SETTING.

Inventors

• 👤 Richard P Ballou

Bibliographic Details