| 摘要 |
An air filter assembly for filtering air with particulate matter therein is provided. The air filter assembly includes a housing having an air inlet and an air outlet, and a spacer wall separating the housing into a filtering chamber and a clear air chamber. The spacer wall includes a first air flow aperture therein. The assembly includes a filter element positioned in air flow communication with the first air flow aperture. The assembly also includes a Venturi element (70) mounted in the spacer wall first air flow aperture. The Venturi element includes a bell-mouth-shaped end portion (74) which projects into an inner clean air chamber of the first filter element. The assembly includes a pulse jet cleaning apparatus having a nozzle oriented to direct a pulse of air into the first Venturi element in a direction toward the first filter element.
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