Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Patent
1995-10-24
1997-08-19
Miller, Carl S.
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
123516, F02M 3704
Patent
active
056577346
ABSTRACT:
A fuel evaporative-gas emission preventing apparatus capable of reducing the quantity of adsorption of a canister as low as possible by a single breather at any fueling speeds and allowing emissions to fall within given limits. One end of the breather is coupled to a portion near a port of an inlet pipe for a fuel tank and a differential pressure regulating valve is connected to the other end of the breather. The canister is coupled to the differential pressure regulating valve. An opening-area variable device is provided at an intermediate portion of the breather and adjusts the quantity of a fuel evaporative-gas in the breather according to an internal pressure of the fuel tank.
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Asada Naohiro
Kido Katsuyuki
Sawamoto Hiroyuki
Miller Carl S.
Toyota Jidosha & Kabushiki Kaisha
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