AN AIR FILTER

Abstract

The present invention relates to high performance air filters made of a woven fabric and nanofiber filaments. An air filter, comprising a frame assembly (10), a filter assembly (11) attached to the frame assembly (10). The filter assembly (11) further comprises a woven filtering fabric (1) disposed within the frame assembly (10) and comprising calibrated woven strands, and a layer of nanofiber filaments (2) disposed on one side of the woven filtering fabric (1) forming a web of the nanofiber filaments (2) an open area between the strands of the woven filtering fabric (1).

Claims

1. An air filter, comprising: a frame assembly (10); a filter assembly (11) attached to the frame assembly (10), wherein the filter assembly (11) further comprises: a woven filtering fabric (1) disposed within the frame assembly (10) and comprising calibrated woven strands; and a layer of nanofiber filaments (2) disposed on one side of the woven filtering fabric (1) forming a web of the nanofiber filaments (2) on open area between the strands of the woven filtering fabric (1), wherein the filter assembly (11) further comprises a protective filtering fabric (3) arranged on a side of the woven filtering fabric (1) where the nanofiber filaments (2) are disposed.

2. (canceled)

3. The air filter according to claim 1, wherein a woven filtering fabric (1) is a polyester woven filtering fabric (1).

4. The air filter according to claim 1, wherein a woven filtering fabric (1) is a nylon woven filtering fabric (1).

5. The air filter according to, claim 4, wherein a spacing (4) of strands of the woven filtering fabric (1) is 55 microns and a spacing (4) of strands of the protective filtering fabric (3) is 40 microns.

6. The air filter according to claim 1, wherein the filter assembly (11) further comprises a mesh (6) arranged in front of the protective filtering fabric (3) in a direction of an air flow (5).

7. The air filter according to claim 5, wherein the filter assembly (11) further comprises another mesh (6) arranged on a back of the woven filtering fabric (1) in a direction of an air flow (5), in result of which a sandwiched air filter assembly (11) is formed.

8. The air filter according to claim 1, wherein the filter assembly (11) further comprises: a protective filtering fabric (3) arranged on a side of the woven filtering fabric (1) where the nanofiber filaments (2) are disposed; a mesh (6) arranged in front of the protective filtering fabric (3) in a direction of an air flow (5); and a mesh (6) arranged in front of the protective filtering fabric (3) in a direction of an air flow (5) a frame assembly (10), wherein the a spacing (4) of strands of the woven filtering fabric (1) is 55 microns and a spacing (4) of strands of the protective filtering fabric (3) is 40 microns.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following invention is described in more detail using the following figures:

[0012] FIG. 1 illustrates an air filter comprising a woven filtering fabric 1 with woven strands with calibrated spacing 4 and nanofiber filaments 2 disposed on the woven filtering fabric 1.

[0013] FIG. 2 illustrates a schematic of an air filter comprising a woven filtering fabric 1, nanofiber filaments 2 and protective filtering fabric 3.

[0014] FIG. 3 illustrates an air filter in a cross-section comprising a frame assembly 10 and a filter assembly 11.

[0015] FIG. 4 illustrates the air filter in a cross-section shown in FIG. 3.

[0016] FIG. 5 illustrates a filter assembly 11 in assembly with meshes 6 from both sides.

DETAILED DESCRIPTION OF THE INVENTION

[0017] FIG. 1 shows a woven filtering fabric 1 with woven strands with calibrated spacing 4 and nanofiber filaments 2 randomly disposed on the woven filtering fabric 1. The following woven filtering fabric 1 is further accompanied by a protective filtering fabric 3 (see FIG. 2). The protective filtering fabric 3 is disposed on the side of the woven filtering fabric 1 where nanofiber filaments 2 are disposed and in front of the woven filtering fabric 3 in a direction of an air flow 5. Moreover, the nanofiber filaments 2 are disposed or layered only on one side of the woven filtering fabric 1. The following air filter comprising sandwiched woven filtering fabric 1, nanofiber filaments 2 and protective filtering fabric 3 is covered from both sides with a mesh 6 (see FIG. 5). The air filter comprising layers is the following order—the mesh 6, the woven filtering fabric 1, the nanofiber filaments 2, the protective filtering fabric 3 and mesh 6—is bended and installed in a frame assembly 10 (see FIGS. 3 and 4). At the end, an air filter is formed ready to be installed in a vehicle air filtration system.

[0018] Given invention is not restricted by embodiments of invention described herein. Those skilled in the art can change or modify given embodiments without departing from the spirit and scope of the invention.