By-pass regulator assembly for dual ERFS/MRFS fuel pump module

Details By-pass regulator assembly for dual ERFS/MRFS fuel pump module By-pass regulator assembly for dual ERFS/MRFS fuel pump module

2011-05-31

2011-05-31

Cronin, Stephen K (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel flow regulation between the pump and the charge-forming...

C123S510000, C123S512000, C123S514000, C417S087000, C137S565220

Reexamination Certificate

active

07950372

ABSTRACT:
A fuel system that supplies fuel to an engine of a vehicle. The fuel system includes a pump that pumps fuel and a controller that selectively changes operation of the pump between an electronic returnless fuel system mode and a mechanical returnless fuel system mode. In the electronic returnless fuel system mode, the outlet of the pump is varied, and in the mechanical returnless fuel system mode, output of the pump is maintained approximately constant.

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