Wash flow bearing system
First Claim
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1. IN A GEAR-TYPE FUEL PUMP WHICH COMPRISES A FUEL INLET, A PUMPING CHAMBER, A FUEL FILTER CHARACTER, AND A FUEL DISCHARGE OUTLET, ALL CONNECTED IN FLOW SERIES:
- A PAIR OF INTERMESHING, PUMPING GEARS, EACH JOURNALED IN A PAIR OF OPPOSITELY DISPOSED FUEL PRESSURE-LOADED BEARINGS MOUNTED IN SAID PUMPING CHAMBER;
A WASH-FLOW FILTER HAVING A TUBULAR FILTERING ELEMENT IN SAID FILTER CHAMBER;
MEANS FOR PASSING THROUGH SAID FILTERING ELEMENT A MINOR FRACTION OF THE FUEL FLOWING THROGH SAID FILTER;
AND MEANS FOR FEEDING SAID FRACTIUON OF FUEL, UNDER SUBSTANTIALLY PUMP DISCHARGE PRESSURE, TO AND THROUGH THE INTERSPACES BETWEEN THE SIDES OF EACH GEAR AND THE ADJACENT END OF EACH
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1 Claim
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1. IN A GEAR-TYPE FUEL PUMP WHICH COMPRISES A FUEL INLET, A PUMPING CHAMBER, A FUEL FILTER CHARACTER, AND A FUEL DISCHARGE OUTLET, ALL CONNECTED IN FLOW SERIES:
- A PAIR OF INTERMESHING, PUMPING GEARS, EACH JOURNALED IN A PAIR OF OPPOSITELY DISPOSED FUEL PRESSURE-LOADED BEARINGS MOUNTED IN SAID PUMPING CHAMBER;
A WASH-FLOW FILTER HAVING A TUBULAR FILTERING ELEMENT IN SAID FILTER CHAMBER;
MEANS FOR PASSING THROUGH SAID FILTERING ELEMENT A MINOR FRACTION OF THE FUEL FLOWING THROGH SAID FILTER;
AND MEANS FOR FEEDING SAID FRACTIUON OF FUEL, UNDER SUBSTANTIALLY PUMP DISCHARGE PRESSURE, TO AND THROUGH THE INTERSPACES BETWEEN THE SIDES OF EACH GEAR AND THE ADJACENT END OF EACH
- A PAIR OF INTERMESHING, PUMPING GEARS, EACH JOURNALED IN A PAIR OF OPPOSITELY DISPOSED FUEL PRESSURE-LOADED BEARINGS MOUNTED IN SAID PUMPING CHAMBER;
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Current AssigneeFrancis P. Schierberl, John J. Schofield
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Original AssigneeFrancis P. Schierberl, John J. Schofield
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InventorsSchofield, John J., Schierberl, Francis P.
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Application NumberUS04/368,862Time in Patent Office566 DaysField of SearchUS Class Current418/47CPC Class CodesF04C 13/005 Removing contaminants, depo...
