Briggs & Stratton, LLC

Michael Schultz

Carl T Tiefenthaler

Bart Mayer

John W Sigrist

Timothy B Strandell

Daniel J Delay

Mark Lester Brenneman

An engine includes an air filter assembly having a filter element and a case. A base of the case includes multiple clips, multiple pins, and a catch. The clips are configured to engage a bottom wall of the filter element. A cover of the case includes multiple hinge wings, a hook, and a guide structure. Each of the hinge wings is coupled with a corresponding pin of the base to allow the cover to rotate about the pins. The hook is configured to fasten to the catch of the base for securing the case in a closed configuration. The guide is configured to facilitate placement of the hook and prevent lateral slipping of the hook from the catch of the base. The base and the cover define an interior volume of the air filter assembly sized to receive the filter element.

Engine including an air filter assembly

An engine includes a breather conduit, an intake conduit, and an air filter assembly. The assembly includes a filter element having a top wall, a bottom wall, a first aperture through the bottom wall, a second aperture through the bottom wall, and filter media extending between the top and bottom walls, wherein the first and second apertures are the same shape, the same size, and are equally spaced apart from the center of the bottom wall. The filter assembly also includes a case. The filter element is configured to be received in the case such that the breather conduit and the intake conduit are directed to and from the interior chamber of the filter element, respectively, whereby air filtered by the filter media mixes with unfiltered gases from the breather conduit in the interior chamber of the filter element prior to entering the intake conduit.

Air filter

A filter element is provided for an air filter assembly of an internal combustion engine including a breather conduit and an intake conduit. The filter element includes a first wall, a second wall, filter media extending between the first and second walls, a first aperture in one of the first and second walls configured to receive air from the breather conduit, and a second aperture in one of the first and second walls configured to deliver air to the intake conduit. The filter media, the first wall, and the second wall define an interior chamber of the filter element. The first and second apertures connect to the interior chamber such that air filtered by the filter media mixes with unfiltered gases provided through the first aperture by the breather conduit prior to exiting the interior chamber through the second aperture into the intake conduit.

Air filter assembly for an engine

An engine includes a breather conduit, an intake conduit, and an air filter assembly. The air filter assembly includes a case and a filter element. The case includes a first opening for receiving the breather conduit, and a second opening for receiving the intake conduit. The filter element includes a first aperture, a second aperture, and filter media at least partially defining an interior chamber of the filter element. The first and second apertures of the filter element are at least partially aligned with the first and second openings of the case, respectively. The filter element is positioned in the case such that the breather conduit and the intake conduit are directed to or from the interior chamber of the filter element, such that air filtered by the filter media mixes with unfiltered gases from the breather conduit in the interior chamber of the filter element prior to entering the intake conduit.

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Menomonee Falls, WI, United States of America

Michael Schultz