Engine air-fuel ratio control in response to generator output

Claim 1

IN A COMBUSTION ENGINE DRIVING A GENERATOR, A SUPERCHARGER CONNECTED TO SUPPLY INLET AIR TO THE ENGINE, MEANS FOR SENSING THE ACTUAL DENSITY OF THE AIR SUPPLIED TO THE ENGINE, MEANS FOR MEASURING THE KILOWATT OUTPUT FROM THE GENERATOR TO THEREBY INDICATE THE ACTUAL LOAD ON THE ENGINE, MEANS FOR GENERATING A SIGNAL FROM THE GENERATOR OUTPUT SO THAT THE RESULTING SIGNAL IS INDICATIVE OF THE DESIRED INLET AIR DENSITY AT EACH AND EVERY LOAD IN ACCORDANCE WITH THE PREVIOUSLY ESTABLISHED MOST EFFICIENT OPERATION OF THE ENGINE AT EACH AND EVERY LOAD, MEANS FOR COMPARING THE THUS SENSED ACTUAL AIR DENSITY TO THE THUS SENSED DESIRED AIR DENSITY, AND MEANS FOR ALTERING THE OPERATION OF THE SUPERCHARGER TO CHANGE THE ACTUAL INLET AIR DENSITY TO THE DESIRED INLET AIR DENSITY IF THE ACTUAL AIR DENSITY DIFFERS FROM THE DESIRED AIR DENSITY TO THEREBY PROVIDE AN AIR-FUEL RATIO MIXTURE AT EACH AND EVERY LOAD ON THE ENGINE WHICH IS MATCHED TO THE PREVIOUS DETERMINED MOST EFFICIENT OPERATION OF THE ENGINE.