Patent ID: 7594484

Claim:
A blower housing for use with an engine, the engine including at least one cylinder, and the blower housing adapted to receive air, the blower housing comprising: an intake opening through which air flows into the blower housing; an air filter housed within a filter compartment; and an air flow duct configured to direct intake air, the intake air entering the air flow duct in a first direction, the air flow duct having a first surface including, a first portion, and a second portion extending obliquely from the first portion downstream of the first portion, a second surface oriented substantially parallel and in facing relationship with the first portion of the first surface, the second portion of the first surface extending toward the second surface to deflect air passing through the air flow duct toward the second surface, separating the air into a first portion, and into a second portion having deflected particulate matter therein, an aperture that allows air to flow from the air flow duct to the air filter in a second direction that is non-parallel to the first direction, the first portion of the air traveling through the aperture to the air filter, and an exhaust window, located downstream of the second surface, configured such that the second portion of the air exits the blower housing through the exhaust window in a third direction that is parallel to the first direction.