Air filter and silencer

摘要

Air filter and silencers comprise an air filter element having an annular body with openings at opposed ends. A top is attached over one of ends, has an outer flange sealed to the element, and includes a central section extending across the air filter element end. The top central section has a convex-shaped geometry with a radius of curvature projecting outwardly and away from the air filter element. The top central section includes a sound deadening material directed towards the air filter element. The top central section has a radius of curvature greater than the radius of an inside diameter of the air filter element. The air filter and silencer is used with an air filter assembly that includes a housing removably attached to the air filter and silencer, and that has an internal chamber projecting axially into the air filter and silencer with a sound deadening material disposed therein.

主权项

1. An air filter and silencer comprising:
an air filter element comprising an annular cylindrical body having an air filtration material forming a cylindrical sidewall to permit the filtering of air passing radially therethrough, the air filter element comprising cylindrical openings at opposed axial ends of the annular cylindrical body; and a closed circular top disposed over and attached to one of the air filter element axial ends, the closed circular top comprising:
a circular outer flange positioned along a radial perimeter edge of the closed circular top and integral therewith is directly connected to and sealed with an axial end of the air filter element to form an air-tight seal with the air filter axial end; anda closed central section extending radially inwardly from the circular outer flange and integral therewith and across an otherwise open end of the air filter element at the air filter axial end sealed to the circular outer flange thereby completely covering the air filter element axial end, wherein the closed circular top extends radially inwardly in a planar fashion from the circular outer flange to the closed central section, wherein the closed central section has a continuous convex-shaped geometry moving inwardly away from the closed top radial perimeter edge and characterized by a radius of curvature projecting outwardly and away from the air filter element axial end, and wherein the top circular outer flange and closed central section are a continuous one-piece construction completely covering the air filter axial end.