Combined pressure surge fuel pump and nozzle assembly

Details Combined pressure surge fuel pump and nozzle assembly Combined pressure surge fuel pump and nozzle assembly

F - Mech Eng,Light,Heat,Weapons

02

M

F02M 59/02 (2006.01) F02M 39/02 (2006.01) F02M 51/04 (2006.01) F02M 57/02 (2006.01) F02M 59/46 (2006.01) F02M 61/08 (2006.01) F02M 61/14 (2006.01) F04B 17/04 (2006.01)

Patent

CA 2181975

Disclosed herein is a fuel pump comprising a housing including therein a high pressure fuel chamber, a fuel outlet valve communicating with the high pressure fuel chamber and being operable to prevent fuel inflow and to permit fuel outflow when the fuel pressure is above a predetermined level, a fuel inlet valve communicating with the high pressure chamber and being operable to prevent fuel outflow and to permit fuel inflow, and a bearing bore extending from the high pressure chamber, a rod slideably and sealingly supported in the bearing bore for movement relative to a retracted position, and structure located in the housing for displacing the rod from the retracted position and in the direction toward the high pressure fuel chamber through an initial stroke length without encountering substantial resistance and thereafter displacing the rod through a subsequent stroke length which is effective to highly pressurize the fuel in the high pressure fuel chamber.

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