Automotive fuel system leak testing

Details Automotive fuel system leak testing Automotive fuel system leak testing

2010-07-14

2011-12-13

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

C123S516000, C073S040000, C073S049700, C073S114430

Reexamination Certificate

active

08074627

ABSTRACT:
Systems and methods for performing leak testing on fuel system components in hybrid vehicles during engine-off operating conditions are disclosed. For example, a fuel tank may include a pressure accumulator which may be filled with fuel via a fuel pump in order to generate a vacuum which may be used to diagnose leaks in the fuel system.

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