Evaporative fuel-processing system for internal combustion engin

Details Evaporative fuel-processing system for internal combustion engin Evaporative fuel-processing system for internal combustion engin

1993-07-02

1994-09-13

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123198D, F02M 3704

Patent

active

053459172

ABSTRACT:
An evaporative fuel-processing system for an internal combustion engine in a vehicle, comprises an evaporative emission control system. A purge control valve is arranged across a purging passage for controlling opening thereof, and a drain shut valve is arranged across an inlet port of a canister. The evaporative fuel-processing system has a function of detecting abnormalities in the evaporative control system and the fuel tank. The ECU detects an amount of evaporative fuel generated within the fuel tank, and inhibits the abnormality detection of the evaporative control system, when the amount of generated evaporative fuel exceeds a predetermined value.

REFERENCES:
patent: 4926825 (1990-05-01), Ohtaka
patent: 4949695 (1990-08-01), Uranishi
patent: 5143035 (1992-09-01), Kayanuma
patent: 5150689 (1992-09-01), Yano
patent: 5158059 (1992-10-01), Kuroda
patent: 5191870 (1993-03-01), Cook

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