Filter oil formulation

Patent metadata

Field	Value
Publication number	US-10294897-B2
Application number	US-201514701163-A
Country	US
Kind code	B2
Filing date	Apr 30, 2015
Priority date	Apr 30, 2014
Publication date	May 21, 2019
Grant date	May 21, 2019

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. An apparatus for removing airborne molecular contaminants from air, comprising:
a filter material configured to remove airborne molecular contaminants from an airstream passing through the filter material, wherein the filter material comprises a plurality of layers of cotton gauze;
two epoxy-coated wire screens, the filter material positioned between the two epoxy-coated wire screens to support the filter material during filtering of the airstream;
an air filter oil composition applied to the filter material and configured to enhance air cleaning properties of the filter material; and
a support configured to orient the filter material such that the airstream is directed through the filter material wherein the support comprises:
a housing portion; and
at least one mount portion including a first set of panels level with a top edge of the housing portion and a second set of panels being a first distance below the top edge of the housing portion, the first set of panels and the second set of panels arranged in an alternating manner.

2. The apparatus of claim 1 , wherein the air filter oil composition comprises 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 the filter material causes tackiness throughout the filter material, thereby enhancing filtration of the airstream.

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

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

6. The apparatus of claim 1 , wherein the filter material is configured to be cleaned by way of a solvent to remove the air filter oil composition.

7. The apparatus of claim 1 , wherein the at least one mount portion extends outwardly from the at least one housing portion toward the distal end of the filter material.

Assignees

• Williams Steve
• Wall Jere James
• Daniels Rick
• K&N Eng Inc

Inventors

• Williams Steve
• Wall Jere James
• Daniels Rick

Classifications

• C08K5/101

  of monocarboxylic acids · CPC title

• 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

• B01D46/0082

  Operations & Transport · mapped topic

• B01D46/0035

  by wetting, e.g. using surfaces covered with oil · CPC title

• F02M35/024

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