Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Patent
1981-07-29
1983-06-14
Lacey, David L.
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
55391, 55394, 55426, 55432, 55466, B01D 4512, B01D 4648, B01D 5000
Patent
active
043880916
ABSTRACT:
An air cleaner for an internal combustion engine, having a dust dumping valve. The air cleaner includes an outer housing containing a filter element and air is introduced into the housing and swirled outwardly before passing through the filter element for discharge. The heavier dust particles in the air are moved under centrifugal force to the inner surface of the housing and are discharged through a conical outlet in the lower end of the housing to a dust trap. The lower end of the trap is provided with a plurality of openings which are enclosed by a flexible rubber-like disc. When the engine is operating, the engine vacuum will draw the disc tightly against the openings to prevent the entrance of air into the trap. The weight of the dust collected in the trap in combination with the engine vibration will intermittently cause the rubber disc to drop away from the openings to discharge a portion of the collected dust. On stopping of the engine, the weight of the collected dust in the trap will open the disc valve to discharge the entire quantity of dust from the trap.
REFERENCES:
patent: 3268018 (1966-08-01), Neilson
patent: 3633613 (1972-01-01), Julow
patent: 3672130 (1972-06-01), Sullivan et al.
patent: 3796026 (1974-03-01), Mugford
patent: 3816982 (1974-06-01), Regnault
patent: 4127396 (1978-11-01), Tortorici et al.
patent: 4155359 (1979-05-01), Zagorski
patent: 4261710 (1981-04-01), Sullivan
Lacey David L.
Nelson Industries Inc.
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