US Patent No. 9,284,931

ENGINE FUEL PUMP AND METHOD FOR OPERATION THEREOF


Patent No. 9,284,931
Issue Date March 15, 2016
Title Engine Fuel Pump And Method For Operation Thereof
Inventorship Patrick Brostrom, White Lake, MI (US)
Vince Paul Solferino, Dearborn, MI (US)
Paul Zeng, Inkster, MI (US)
Assignee Ford Global Technologies, LLC, Dearborn, MI (US)

Claim of US Patent No. 9,284,931

1. A method of pressuring fuel for a direct injection fuel system via a fuel pump in an engine, comprising:
during a first mode, adjusting a magnetic solenoid valve (MSV) to control pump outlet pressure; and
during a second mode, deactivating the MSV and controlling pump outlet pressure via a noise-reducing valve assembly on an
inlet side of the fuel pump, where the noise-reducing valve assembly includes a spool valve and a reed valve.