Fuel control

Claim 1

A FUEL CONTROL FOR METERING FUEL TO A TURBINE ENGINE OR SIMILAR DEVICE COMPRISING A CONSTANT DELIVERY PUMP FOR PUMPING FUEL UNDER HIGH PRESSURE IN EXCESS OF ENGINE REQUIREMENTS AT ALL TIMES, AN ACCELERATION SYSTEM OPERABLY ASSOCIATED WITH THE PUMP AND RESPONSIVE TO ENGINE COMPRESSOR PRESSURE FOR RETURNING A PORTION OF THE PUMPED FUEL BACK TO THE PUMP TO REGULATE THE QUANTITY OF FUEL METERED THROUGH THE FUEL CONTROL IN ACCORDANCE WITH ENGINE COMPRESSOR PRESSURE AT ALL TIMES, GOVERNING APPARATUS OPERABLY ASSOCIATED WITH THE PUMP AND ACCELERATION SYSTEM RESPONSIVE TO ENGINE COMPRESSOR SPEED AND ENGINE POWER TURBINE SPEED FOR MODULATING THE FUEL METERED TO THE ENGINE IN ACCORDANCE WITH ENGINE POWER TURBINE SPEED AND ENGINE COMPRESSOR SPEED BETWEEN PREDETERMINED ENGINE COMPRESSOR SPEEDS, INCLUDING A GOVERNING VALVE POSITIONED TO CONTROL FUEL FLOW IN SAID FUEL CONTROL, MINIMUM AND MAXIMUM FUEL FLOW ABUTMENTS AND A LEVEL PIVOTALLY MOUNTED AT ONE END AND MOVABLE BETWEEN THE MINIMUM AND MAXIMUM FUEL FLOW ABUTMENTS IN ENGAGEMENT WITH THE GOVERNING VALVE TO POSITION SAID GOVERNING VALVE AND A THROTTLE VALVE ASSEMBLY OPERABLY ASSOCIATED WITH THE PUMP, GOVERNING APPARATUS AND ACCELERATION SYSTEM INCLUDING A VALVE ORIFICE, DIAPHRAGM MEANS, A VALVE PLATE SECURED AROUND THE PERIPHERY THEREOF TO SAID DIAPHRAGM MEANS, RESILIENT MEANS ADJUSTABLY BIASING SAID VALVE PLATE TOWARD SAID VALVE ORIFICE, AND MEANS FOR MOVING THE VALVE PLATE TO MAINTAIN A SUBSTANTIALLY CONSTANT PRESSURE DIFFERENTIAL ACROSS THE GOVERNING VALVE.