Method of de-pressurizing an evaporative emission control system

Details Method of de-pressurizing an evaporative emission control system Method of de-pressurizing an evaporative emission control system

1996-03-05

1997-11-11

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123198D, F02M 3704

Patent

active

056852797

ABSTRACT:
A method of de-pressurizing an evaporative emission control system includes the steps of pulsing a leak detection pump at a predetermined rate and purging accumulated vapors from a vapor canister. The method also includes the steps of determining whether a last pump period is greater than or equal to a predetermined system de-pressurization mode pump period and continuing the method if the last pump period is less than the system de-pressurization mode pump period.

REFERENCES:
patent: 5146902 (1992-09-01), Cook
patent: 5273020 (1993-12-01), Hayami
patent: 5297529 (1994-03-01), Cook
patent: 5333589 (1994-08-01), Otsuka
patent: 5349935 (1994-09-01), Mezger
patent: 5353771 (1994-10-01), Blumenstock
patent: 5383437 (1995-01-01), Cook
patent: 5411004 (1995-05-01), Busato
patent: 5460141 (1995-10-01), Denz
patent: 5499614 (1996-03-01), Busato

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