Air swirling unit for air filters on internal combustion engines

摘要

An air swirling unit for use on the air filter of an internal combustion engine consisting of a series of inwardly and tangentially directed vanes mounted on a framework to be inserted in a conventional air filter housing with the vanes in the path of the incoming air which will direct said air into a circular stream, increasing the velocity of the air as it flows into the carburetor.