Multi-stage air filter

Details Multi-stage air filter Multi-stage air filter

1983-04-07

1984-01-10

Nozick, Bernard

Gas separation

Combined or convertible

Involving ash tray

55482, 55497, 55521, 55522, 55DIG13, 123195C, B01D 5000

Patent

active

044251459

ABSTRACT:
The invention provides an air cleaner assembly in combination with an engine having a blower housing with airflow circulating therethrough and a carburetor having an intake. The assembly comprises a duct having an inlet and an outlet with the inlet angularly disposed through the blower housing, an air cleaner housing having side walls and a bottom wall, and an outlet chamber having an inlet and an outlet in communication with the carburetor inlet. Within the air cleaner housing, a first interior wall is upstanding from the bottom wall and defines with certain side walls an intake chamber having an inlet communicating with the duct outlet, and a second interior wall upstanding from the bottom wall so that a filter chamber is formed between the interior walls having an outlet in its bottom wall so that the filter chamber and outlet chamber communicate through the filter chamber outlet and the outlet chamber inlet. The second interior wall and other side walls of the housing define a passageway in communication with the outlet chamber and the engine crankcase. Removably placed within the filter chamber is a filtering element, and removably attached to the air cleaner housing is a cover having side walls and a top wall such that the top wall is spaced above the filtering element to form therebetween a passageway, which provides communication between the intake chamber, filter chamber and passageway.

REFERENCES:
patent: 2785767 (1957-03-01), Glidden
patent: 3442067 (1969-05-01), Swenson
patent: 3710562 (1973-01-01), McKenzie
patent: 3744216 (1973-07-01), Halloran
patent: 3745753 (1973-07-01), Risse
patent: 3791105 (1974-02-01), Rhodes
patent: 4023472 (1977-05-01), Grunder et al.
patent: 4104170 (1978-08-01), Nedza
patent: 4129426 (1978-12-01), Furasen
patent: 4233043 (1980-11-01), Catterson
patent: 4259097 (1981-03-01), Ratel et al.
patent: 4265647 (1981-05-01), Donachiue

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