F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
123/27
F02M 35/02 (2006.01) B01D 46/10 (2006.01) F02B 63/02 (2006.01) F02M 35/024 (2006.01)
Patent
CA 1178144
MULTI-STAGE AIR FILTER ABSTRACT OF THE DISCLOSURE ABSTRACT The invention provides an air cleaner assembly in combination with an engine having a blower housing with airflow circulating therethrough and a carbure- tor having an intake. The assembly comprises a duct having an inlet and an outlet with the inlet angular- ly 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.
415321
Macrae & Co.
Tecumseh Products Company
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