Patent ID: 8900356
Filing Date: 2014-12-02
Classification: F02M,Y10S,Y10T

Abstract:
1. An air filter assembly for an engine, the air filter assembly comprising: a cylindrical filter element defining a hollow interior; a sound attenuation member extending into the hollow interior of the cylindrical filter element, the sound attenuation member including a flange at a first end thereof, the flange having a diameter greater than a diameter of the hollow interior; and an end cap secured to the cylindrical filter element and fixing the sound attenuation member relative to the filter member; wherein the sound attenuation member is operative for reducing engine noise travelling through the air filter assembly; wherein the sound attenuation member includes a hollow axially extending throat member radially closing an axial throat passage therein, the axial throat passage extending from a first axial end of the sound attenuation member to an opposing second axial end; a first axially open end of the throat passage opening axially through the first axial end of the sound attenuation member; an opposing second axially open end of the throat passage opening axially through the second axial end of the sound attenuation member to open into the hollow interior of the filter element for airflow between the throat passage and the hollow interior of the filter element; wherein the sound attenuation member closes the axial throat passage radially from the first axial end to the second axial end of the sound attenuation member; wherein the hollow axially extending throat member includes: