Air cleaner with valve means for preventing fuel vapor escape

Details Air cleaner with valve means for preventing fuel vapor escape Air cleaner with valve means for preventing fuel vapor escape

1978-06-26

1980-09-23

Prunner, Kathleen J.

Gas separation

Combined or convertible

Involving ash tray

55498, 55510, 55DIG28, 123518, 137526, 137859, B01D 5000, B01D 3514

Patent

active

042240441

ABSTRACT:
An air cleaner for use on internal combustion engines is provided with a bellows valve which is located on the clean side of the filter and blocks the outlet to the carburetor when the engine is not operating to prevent fuel vapor escape and is aspirated by a source of vacuum during engine operation to retract to an open position permitting free filtered air flow to the carburetor.

REFERENCES:
patent: 208379 (1878-09-01), Downey
patent: 2427525 (1947-09-01), Glanzer
patent: 2646063 (1953-07-01), Hayes
patent: 2927848 (1960-03-01), Baverstock
patent: 3189042 (1965-06-01), Kerley, Jr. et al.
patent: 3811419 (1974-05-01), Eckert et al.
patent: 3927656 (1975-12-01), Reed et al.
patent: 4008700 (1977-02-01), Pierlot
The Condensed Chemical Dictionary, 8th ed. N.Y., Reinhold, 1971, p. 766.

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