Fuel nozzle fuel proportioning system utilizing a fuel pressure responsive valve

Claim 2

A FUEL SYSTEM INCLUDING MEANS FOR SUPPLYING FUEL UNDER PRESSURE AT A VARIABLY CONTROLLED FLOW RATE, A PRIMARY FUEL OUTLET FOR CONNECTION TO FUEL NOZZLE MEANS ADAPTED TO HANDLE RELATIVELY SMALL FUEL FLOWS, AND A SECONDARY FUEL OUTLET FOR CONNECTION TO FUEL NOZZLE MEANS ADAPTED TO HANDLE RELATIVELY LARGE FUEL FLOWS, CHARACTERIZED BY MEANS FOR DISTRIBUTING FUEL BETWEEN THE OUTLETS COMPRISING, IN COMBINATION, AN INLET CONDUIT CONNECTED TO THE SUPPLYING MEANS, A PRESSURE RESPONSIVE MOTOR BEING ENERGIZED BY FUEL PRESSURE IN THE OUTLET CONDUIT AGAINST A COUNTERACTING FUEL PRESSURE IN SAID SECONDARY OUTLET, A PRIMARY FUEL VALVE OPERATED BY THE MOTOR SO AS TO MOVE PROGRESSIVELY TO A CLOSED POSITION ON AS PRESSURE IN THE INLET CONDUIT INCREASES PROGRESSIVELY ABOVE A PREDETERMINED VALUE, A PRIMARY FUEL CONDUIT SUPPLIED FROM THE INLET CONDUIT THROUGH THE PRIMARY FUEL VAVLE AND CONNECTED TO THE PRIMARY OUTLET, A SECONDARY FUEL VALE OPERATED BY THE MOTOR SO AS TO OPEN PROGRESSIVELY FROM A CLOSED POSITION AS PRESSURE IN THE INLET CONDUIT INCREASED PROGRESSIVELY ABOVE A PREDETERMINED VALUE LOWER THAN THE FIRST-MENTIONED VALUE, AND A SECONDARY FUEL CONDUIT SUPPLIED FROM THE INLET CONDUIT THROUGH THE SECONDARY FUEL VALVE AND CONNECTED TO THE SECONDARY FUEL OUTLET.

Claim 3

A FUEL SYSTEM INCLUDING MEANS FOR SUPPLYING FUEL UNDER PRESSURE AT A VARIABLY CONTROLLED FLOW RATE, A PRIMARY FUEL OUTLET FOR CONNECTION TO FUEL NOZZLE MEANS ADAPTED TO HANDLE RELATIVELY SMALL FUEL FLOWS, AND A SECONDARY FUEL OUTLET FOR CONNECTION TO FUEL NOZZLE MEANS ADAPTED TO HANDLE RELATIVELY LARGE FUEL FLOWS, CHARACTERIZED BY MEANS FOR DISTRIBUTING FUEL BETWEEN THE OUTLETS COMPRISING, IN COMBINATION, AN INLET CONDUIT CONNECTED TO THE SUPPLYING MEANS, A BRANCH CONDUIT, A FILTER WASHED BY FLOW THROUGH THE INLET CONDUIT CONNECTED TO SUPPLY FILTERED FUEL FROM THE INLET CONDUIT TO THE PRIMARY OUTLET THROUGH THE BRANCH CONDUIT, A PRESSURE RESPONSIVE MOTOR ENERGIZED FROM THE BRANCH CONDUIT, A PRIMARY FUEL VALVE OPERATED BY THE MOTOR SO AS TO MOVE PROGRESSIVELY TO A CLOSED POSITION AS PRESSURE IN THE BRANCH CONDUIT INCREASES PROGRESSIVELY ABOVE A PREDETERMINED VALUE, A PRIMARY FUEL CONDUIT SUPPLIED FROM THE BRANCH CONDUIT THROUGH THE PRIMARY FUEL VALVE AND CONNECTED TO THE PRIMARY OUTLET, A SECONDARY FUEL VALVE OPERATED BY THE MOTOR SO AS TO OPEN PROGRESSIVELY FROM A CLOSED POSITION AS PRESSURE IN THE BRANCH CONDUIT INCREASES PROGRESSIVELY ABOVE A PREDETERMINED VALUE LOWER THAN THE FIRST-MENTIONED VALUE, AND A SECONDARY FUEL CONDUIT SUPPLIED FROM THE INLET CONDUIT DOWNSTREAM FROM THE FILTER WITH AN UNFILTERED WASHING FLOW OF FUEL THROUGH THE SECONDARY FUEL VALVE AND CONNECTED TO THE SECONDARY FUEL OUTLET.

Claim 4

A FUEL SYSTEM INCLUDING MEANS FOR SUPPLYING FUEL UNDER PRESSURE AT A VARIABLY CONTROLLED FLOW RATE, A PRIMARY FUEL OUTLET FOR CONNECTION TO FUEL NOZZLE MEANS ADAPTED TO HANDLE RELATIVELY SMALL FUEL FLOWS, AND A SECONDARY FUEL OUTLET FOR CONNECTION TO FUEL NOZZLE MEANS ADAPTED TO HANDLE RELATIVELY LARGE FUEL FLOWS, CHARACTERIZED BY MEANS FOR DISTRIBUTING FUEL BETWEEN THE OUTLETS COMPRISING, IN COMBINATION, AN INLET CONDUIT CONNECTED TO THE SUPPLYING MEANS, A BRANCH CONDUIT, A FILTER WASHED BY FLOW THROUGH THE INLET CONDUIT CONNECTED TO SUPPLY FILTERED FUEL FROM THE INLET CONDUIT TO THE PRIMARY OUTLET THROUGH THE BRANCH CONDUIT, A PRESSURE RESPONSIVE MOTOR ENERGIZED FROM THE BRANCH CONDUIT, A PRIMARY FUEL VALVE OPERATED BY THE MOTOR SO AS TO MOVE PROGRESSIVELY TO A CLOSED POSITION AS PRESSURE IN THE BRANCH CONDUIT INCREASES PROGRESSIVELY ABOVE A PREDETERMINED VALUE, A PRIMARY FUEL CONDUIT SUPPLIED FROM THE BRANCH CONDUIT THROUGH THE PRIMARY FUEL VALVE AND CONNECTED TO THE PRIMARY OUTLET, A SECONDARY FUEL VALVE OPERATED BY THE MOTOR SO AS TO OPEN PROGRESSIVELY FROM A CLOSED POSITION AS PRESSURE IN THE BRANCH CONDUIT INCREASES PROGRESSIVELY ABOVE A PREDETERMINED VALUE LOWER THAN THE FIRST-MENTIONED VALUE, AND A SECONDARY FUEL CONDUIT SUPPLIED FROM THE INLET CONDUIT DOWNSTREAM FROM THE FILTER WITH AN UNFILTERED WASHING FLOW OF FUEL THROUGH THE SECONDARY FUEL VALVE AND CONNECTED TO THE SECONDARY FUEL OUTLET.