Air filter assembly
AssigneeInternational Liner Co., Inc.
InventorsPhilippe Vandenberghe, Laurent Guimond
Life of this patent
Estimating the term…
Abstract
A filter assembly includes a conical filter element sealingly clamped to a cylindrical base. A conical housing is releasably clamped to the base with spring clips in surrounding relation with the filter element to allow for efficient installation and removal of the filter element in the housing. The filter element includes a cap having a plurality of integral turbine blades forming a plurality of channels angularly displaced from the longitudinal axis of the filter element. The channels accelerate the flow of air into the filter assembly and through the filter element. The filter element is mounted on the base to dampen vibration and abate the resultant noise generated by the flow of air through the filter assembly.
Claims25
An air filter comprising:
- a filter element formed of an air permeable material,
- said filter element having a conical-shaped body portion with an open upper end portion and an open lower end portion,
- said open upper end portion having a smaller diameter than the diameter of said open lower end portion,
- a cap positioned in said filter element open upper end portion to close said open upper end portion,
- said cap having a conical configuration with a plurality of turbine blades extending in spaced relation on the surface of said cap to form channels between said turbine blades,
- said channels accelerating flow of contaminated air between said turbine blades into said filter element,
- a cylindrical base having an open enlarged end portion and an open reduced end portion coaxially aligned with and extending from said open enlarged end portion,
- said base open enlarged end portion extending into said filter element open lower end portion to support said filter element on said base, and
- clamping means circumscribing said filter element lower open end portion in surrounding relation with said base open enlarged end portion for connecting said filter element to said base to form an outlet for directing the accelerated flow of air free of contaminants out of said filter element.
An air filter assembly comprising:
- a filter element formed of an air permeable material,
- said filter element having a conical-shaped body portion with an upper end portion closed by a cap and an open lower end portion,
- a resilient collar extending axially from said filter element open lower end portion,
- a cylindrical base member having an inlet end portion and an outlet end portion with a radial portion positioned intermediate said inlet and outlet end portions,
- said base member inlet end portion extending into sealing engagement with said collar to axially position said filter element on base member,
- a housing surrounding said filter element, said housing having a cylindrical open upper end portion and an elongated frusto-conical body portion, and
- said housing body portion having a lower end positioned on said base member radial portion to axially position said housing on said base member and thereby coaxially align said housing and said filter element to assure uniform spacing between said housing and said filter element the length of said filter element in said housing for the flow of air into said housing and through said filter element.
A method for assembling an air filter comprising the steps of:
- supporting a lower end portion of a conical filter element on a cylindrical base,
- clamping the filter element to the base to maintain the filter element in axial alignment with the base,
- positioning a conical housing having opposite open end portions in surrounding relation with the filter element,
- positioning a large diameter end portion of the housing on the base in surrounding relation with the filter element secured to the base, and
- securing the housing to the base so that the housing is axially aligned with the base to coaxially position the housing and the filter element to maintain uniform spacing between the housing and the filter element for the flow of air into the housing and through the filter.
Dependencies are inferred from the claim text.