Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Patent
1989-06-29
1990-08-28
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
123519, 123463, F02M 3900
Patent
active
049516370
ABSTRACT:
Hydrocarbon fuel vapors that are collected in a canister are periodically purged to the intake manifold through a purge valve that comprises a variable orifice valve portion and a flow regulator valve portion in series with each other. The variable orifice portion sets an orifice in inverse proportion to manifold vacuum. The flow regulator portion controls the flow in accordance with a signal from the engine E.C.U.
REFERENCES:
patent: 3752134 (1973-08-01), Hollis
patent: 4700683 (1987-10-01), Uranishi
patent: 4703737 (1987-11-01), Cook
patent: 4741317 (1988-05-01), Yost
patent: 4783962 (1988-11-01), Grein
patent: 4809667 (1989-03-01), Uranishi
Boller George L.
Miller Carl Stuart
Siemens-Bendix Automotive Electronics Limited
Wells Russel C.
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