Controlled flow purge system and apparatus

Details Controlled flow purge system and apparatus Controlled flow purge system and apparatus

1979-05-22

1981-01-20

Lazarus, Ira S.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

123520, 13754317, F02M 700

Patent

active

042455928

ABSTRACT:
With an engine having a crankcase, a suction or vacuum producing air induction means and a hydrocarbon vapor storage container, a system for purging both the storage container and the engine crankcase at varying rates according to engine operation, including a first passage means between the crankcase and the air induction means and a second passage means between the storage container and the crankcase. In the second passage means, a multi-position valving member is moved in response to changing vacuum levels in the crankcase and in cooperative action with a flow orifice or opening to produce desired variable flow rate through the storage container.

REFERENCES:
patent: 3554175 (1971-01-01), Sarto
patent: 3661128 (1972-05-01), Eshelman
patent: 3678910 (1972-07-01), Marlett
patent: 3779224 (1973-12-01), Tagawa et al.
patent: 4026258 (1977-05-01), Ino et al.
patent: 4066055 (1978-01-01), Hager
patent: 4090477 (1978-05-01), Gockel

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