Direct injection fuel system with reservoir

Details Direct injection fuel system with reservoir Direct injection fuel system with reservoir

2011-06-28

2011-06-28

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Starting device

With fuel or intake air control

C123S456000

Reexamination Certificate

active

07966984

ABSTRACT:
A method of operating a fuel delivery system for an internal combustion engine is described. The method may include, after or during engine shutdown, and during a fuel system cool down, activating the first pump; and varying the activation of the first pump responsive to temperature to maintain a higher pressure for high temperatures. By utilizing the pump to generate increased pressure at an appropriate condition during the cool down, for example, the pressures in the system can be managed to reduce the likelihood of fuel migrating to the rail.

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