Pump using a single diaphragm having preformed oppositely direct

Details Pump using a single diaphragm having preformed oppositely direct Pump using a single diaphragm having preformed oppositely direct

1996-11-18

1997-12-16

Gluck, Richard E.

Pumps

Expansible chamber type

Having pumping chamber pressure responsive distributor

417566, 1375124, 137859, F04B 5310, F04B 43073, B60K 15077, F16K 717

Patent

active

056977700

ABSTRACT:
A pumping device including a common pumping diaphragm with two stop valves each of which are equipped with a valve closing member that alternately assumes an open position and a closed position during the pumping operation. The pumping device according to the invention is provided for a fuel evaporation inhibiting system of an internal combustion engine.

REFERENCES:
patent: 2529204 (1950-11-01), Van Ranst et al.
patent: 2980032 (1961-04-01), Schneider
patent: 3058140 (1962-10-01), Henss
patent: 4181477 (1980-01-01), Litt
patent: 4646781 (1987-03-01), McIntyre et al.
patent: 4712583 (1987-12-01), Pelmulder et al.

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