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ENGINE FUEL PUMP AND METHOD FOR OPERATION THEREOF

  • US 20150027416A1
  • Filed: 07/24/2013
  • Published: 01/29/2015
  • Est. Priority Date: 07/24/2013
  • Status: Active Grant
First Claim
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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.

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