Filter oil formulation

Patent metadata

Field	Value
Publication number	US-11401895-B2
Application number	US-201916296728-A
Country	US
Kind code	B2
Filing date	Mar 8, 2019
Priority date	Apr 30, 2014
Publication date	Aug 2, 2022
Grant date	Aug 2, 2022

Abstract

A filter oil composition and a method for removing airborne molecular contaminants from air are provided. The composition includes a first portion comprising paraffinic oil by volume of the composition, a second portion comprising polyalphaolefin (PAO) by volume of the composition, and a third portion comprising red dye by volume of the composition. Applying the filter oil composition to a cotton air filter material causes tackiness throughout the air filter material, thereby enhancing filtration of air passing through the filter. The composition generally is substantially non-reactive, has an excellent oxidation stability, possesses good thermal stability, and retains a suitable viscosity at a normal operating temperatures of an automobile engine. In an embodiment, the composition comprises 96.74% paraffinic oil by volume, 3.20% polyalphaolefin (PAO) by volume, and 0.06% red dye by volume. A viscosity of the composition at 100 degrees-C ranges between substantially 7.2 and 7.6 centistokes (cSTs).

First claim

What is claimed is:

1. A method for removing airborne molecular contaminants from air, comprising:
configuring a filter material to remove airborne molecular contaminants from an airstream passing through the filter material;
formulating an air filter oil composition for application to the filter material, the air filter oil composition being configured to enhance air cleaning properties of the filter material;
supporting the filter material such that the airstream is directed through the filter material; wherein a support comprises at least one housing portion and at least one mount portion, wherein the mount portion includes a first set of panels level with a top edge of the housing portion and a second set of panels being a distance below the top edge of the housing portion, the panels arranged in alternating manner wherein the mount portion comprises: (i) a plurality of parallel ridges of varying depths having a first height disposed along a surface of the mount portion, and (ii) a plurality of depressed portions disposed along the surface of the mount portion; wherein one of the depressed portions is disposed between two of the parallel ridges, and the parallel ridges have a top surface that is not coplanar with a top surface of the depressed regions; and wherein the parallel ridges and depressed portions of the mount portion are configured for mounting; and
cleaning the filter material periodically so as to remove entrapped contaminants.

2. The method of claim 1 , wherein formulating comprises providing a first portion including paraffinic oil by volume of the composition, a second portion including polyalphaolefin (PAO) by volume of the composition, and a third portion including red dye by volume of the composition, such that application of the composition to a cotton air filter material causes tackiness throughout the air filter material, thereby enhancing filtration of the airstream.

3. The method of claim 2 , wherein the composition is substantially non-reactive, has an excellent oxidation stability, possesses good thermal stability, and retains a suitable viscosity within a temperature range typical of an operating automobile engine.

4. The method of claim 2 , wherein the composition comprises 96.74% paraffinic oil by volume, 3.20% polyalphaolefin (PAO) by volume, and 0.06% red dye by volume.

5. The method of claim 2 , wherein the composition has a viscosity at 100 degrees-C ranging between substantially 7.2 and 7.6 centistokes (cSTs).

6. The method of claim 1 , wherein configuring comprises positioning at least one layer of cotton gauze between two epoxy-coated aluminum wire screens so as to support the filter material during filtering of the airstream.

7. The method of claim 1 , wherein supporting comprises positioning the filter material within an air intake of an internal combustion engine.

8. The method of claim 1 , wherein supporting comprises positioning the filter material within a ventilation system which circulates air within an enclosed space.

9. The method of claim 1 , wherein cleaning comprises removing the filter material from the airstream, using a solvent to remove the air filter oil composition, flushing contaminants and the solvent from the filter material by way of a water hose, allowing the filter material to dry, and uniformly applying the air filter oil composition to the filter material.

Assignees

• K&N Eng Inc

Inventors

• Williams Steve
• Wall Jere James
• Daniels Rick

Classifications

• F02M35/086

  Dust removal by flushing, blasting, pulsating or aspirating flow, washing or the like; Mechanical dust removal, e.g. by using scrapers · CPC title

• F02M35/08 Primary

  with means for removing dust, {particles or liquids} from cleaners; with means for indicating clogging; with by-pass means; {Regeneration of cleaners} · CPC title

• F02M35/024

  using filters, e.g. moistened (F02M35/026 takes precedence; cleaning of the filtering material F02M35/08) · CPC title

• C08K5/01

  Hydrocarbons {(C08K5/0091 takes precedence)} · CPC title

• B01D46/79 Primary

  by liquid process · CPC title