초록 ▼

A circular type air filter preferably for automotive applications to filter air flow to the carburetor, has an open plastic housing containing a plurality of individual cartridge filters. The cartridge filters are made of aluminum or copper wool and are of differential porosity with the more dense f

A circular type air filter preferably for automotive applications to filter air flow to the carburetor, has an open plastic housing containing a plurality of individual cartridge filters. The cartridge filters are made of aluminum or copper wool and are of differential porosity with the more dense filters closer to the air inlet whereby the air is diffused through the filter more uniformly.

대표청구항 ▼

An air filter for filtering air to the carburetor of an internal combustion engine, comprising; a toroidal-shaped housing having a bottom and inner and outer air-pervious side walls, air cleaner housing means for supporting the toroidal-shaped housing defining with the housing a toroidal-shaped air

An air filter for filtering air to the carburetor of an internal combustion engine, comprising; a toroidal-shaped housing having a bottom and inner and outer air-pervious side walls, air cleaner housing means for supporting the toroidal-shaped housing defining with the housing a toroidal-shaped air passage adapted to extend about the outer side wall of the housing and having means defining an air inlet at one side of said housing and an outlet spaced from the inlet, said housing being positioned between the inlet and outlet, and a plurality of replaceable adjacent cartridge filters located within said housing and each comprising a metal wool, said filters each being of uniform density with different ones thereof having different porosity with the more dense filter disposed closer to the air inlet and the less dense filter disposed remote from the air inlet with said dense to less dense filters extending circumferentially, whereby uniform air dispersion occurs through the filters, said air flow passing from the air inlet branching in a circular flow to either side of the housing, said toroidal-shaped air passage having uniform width thereabout with uniformity of flow being attained by filter density variation.