Reusable air filter system and method
View Patent ↗A reusable air filter and methods are provided for filtering air being conducted to an air intake of an internal combustion engine. The reusable air filter comprises a filter medium configured to pass an airstream and entrap particulates flowing within the airstream. The filter medium is comprised of cotton gauze disposed in a sinusoidal arrangement that provides a filtration surface area that is larger than a perimeter area of the filter medium. An end cap and base may be configured to retain the filter medium therebetween. The base provides an interface between the air filter and an air inlet of the engine. The filter medium may be disposed in a flat, panel shape that is bordered by a supportive tray. Support rods may be embedded within the tray to prevent bowing of the tray due to air pressure when coupled with an air box of the engine.
1. A reusable air filter for filtering air being conducted to an air intake of an internal combustion engine, comprising:
a filter medium configured to pass an airstream and entrap particulates flowing within the airstream; and
an end cap and a base configured to retain the filter medium therebetween, wherein the end cap comprises a rectangular shape having a plurality of straight sides and a plurality of inwardly protruding waved sides.
2. The reusable air filter of claim 1 , wherein the filter medium is comprised of one or more layers of cotton gauze that are disposed into a sinusoidal arrangement comprising a series of peaks and troughs so as to provide a filtration surface area that is larger than a perimeter area of the filter medium.
3. The reusable air filter of claim 1 , wherein the filter medium the end cap is configured to enclose an interior of the reusable air filter and direct the airstream to the filter medium.
4. The reusable air filter of claim 1 , wherein the base is configured to support the air filter and provide an interface between the air filter and an air inlet of the internal combustion engine.
5. The reusable air filter of claim 4 , wherein the interface is comprised of an inlet receiver configured to be coupled with any of an intake pipe, a turbocharger, and a manifold of the internal combustion engine.
6. The reusable air filter of claim 4 , wherein the base comprises any of a variety of ridges and raised portions to optimally engage with the air inlet.
7. A reusable air filter for filtering air being conducted to an air intake of an internal combustion engine, comprising:
a filter medium configured to pass an airstream and entrap particulates flowing within the airstream wherein the filter medium comprises a series of peaks and troughs, and wherein the troughs are wider than the peaks such that the peaks offer relatively little resistance to the airstream and the troughs provide a relatively large filtration surface area to capture particulate matter; and
a tray configured to supportively retain the filter medium, wherein the tray comprises at least a base and an end cap, the end cap comprising a rectangular shape having a plurality of straight sides and a plurality of inwardly protruding waved sides.
8. The reusable air filter of claim 7 , wherein the filter medium is comprised of one or more layers of cotton gauze that are disposed into a sinusoidal arrangement comprising the series of peaks and troughs so as to provide a filtration surface area that is larger than a perimeter area of the filter medium.
9. The reusable air filter of claim 7 , wherein the tray is configured to support the air filter within an air box that is coupled with an air inlet of the internal combustion engine, the air inlet being any of an intake pipe, a turbocharger, and a manifold of the internal combustion engine.
10. The reusable air filter of claim 7 , wherein the tray comprises rounded edges disposed at corner portions of any one of a square shape, a rectangle shape, and a trapezoid shape.
11. The reusable air filter of claim 7 , wherein the tray comprises a lip configured to establish an airtight seal with a mounting surface disposed within an air box that is coupled with an air inlet of the internal combustion engine.
12. The reusable air filter of claim 7 , further comprising support rods that are embedded within the material comprising the tray and configured to prevent the sides of the tray from bowing under air pressure when coupled with an air box of the internal combustion engine.
13. A method for a reusable air filter for filtering air being conducted to an air intake of an internal combustion engine, comprising:
configuring a cleanable filter medium to entrap particulates flowing within an airstream wherein the filter medium comprises a series of peaks and troughs along a first axis;
coupling the filter medium with one or more support structures that maintain the shape of the filter medium wherein the support structure comprises at least a base an end cap;
forming the cleanable filter medium between the base and end cap into a cube shape having a plurality of sides wherein at least one of the plurality of sides inwardly protrude perpendicular to the first axis and facilitate coupling the reusable air filter with an air box, such that an entirety of the airstream is passed through the filter medium; and
contouring the cleanable filter medium to provide a filtration surface area that is larger than an area of the shape.
14. The method of claim 13 , wherein the end cap and base are configured to couple with an air inlet of the internal combustion engine, the air inlet being any of an intake pipe, a turbocharger, and a manifold of the internal combustion engine.
15. The method of claim 14 , wherein coupling further comprises embedding support rods within the material comprising the tray to prevent the sides of the tray from bowing under air pressure when coupled with an air box of the internal combustion engine.