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Fuel pumping system and method

United States Patent

7,150,268
December 19, 2006
View the Complete Patent at the US Patent & Trademark Office
A fuel pumping system that includes a pump drive is provided. A first pumping element is operatively connected to the pump drive and is operable to generate a first flow of pressurized fuel. A second pumping element is operatively connected to the pump drive and is operable to generate a second flow of pressurized fuel. A first solenoid is operatively connected to the first pumping element and is operable to vary at least one of a fuel pressure and a fuel flow rate of the first flow of pressurized fuel. A second solenoid is operatively connected to the second pumping element and is operable to vary at least one of a fuel pressure and a fuel flow rate of the second flow of pressurized fuel.
Shafer; Scott F. (Morton, IL), Wang; Lifeng (Normal, IL)
Caterpillar Inc (Peoria, IL)
11/ 201,301
20060054140
August 11, 2005
U.S. GOVERNMENT RIGHTS This invention was made with government support under the terms of Contract No. DE-FC05-00OR22806 awarded by the Department of Energy. The government may have certain rights in this invention.