Evaporative emission control system for internal combustion engi

Details Evaporative emission control system for internal combustion engi Evaporative emission control system for internal combustion engi

1998-02-09

1999-07-06

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123198D, 123518, F02M 3704

Patent

active

059185813

ABSTRACT:
An evaporative emission control system for an internal combustion engine includes an evaporative fuel passage extending between the intake system and the fuel tank of the engine. A control valve is arranged across the evaporative fuel passage, for opening and closing the evaporative fuel passage. The opening of the control valve is controlled such that the interior of the fuel tank is under negative pressure during operation and stoppage of the engine.

REFERENCES:
patent: 5119791 (1992-06-01), Gifford et al.
patent: 5193511 (1993-03-01), Fujino
patent: 5237979 (1993-08-01), Hyodo et al.
patent: 5261439 (1993-11-01), Harris
patent: 5359978 (1994-11-01), Kidokoro et al.
patent: 5601065 (1997-02-01), Tamura et al.

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