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Double-layer filter material for internal combustion engine

A double-layer filter and internal combustion engine technology, which is applied in the direction of filter separation, layered products, mechanical equipment, etc., can solve the problems of limited filter efficiency of filter materials, and achieve the effects of wide performance control range, improved filter efficiency, and high dust holding capacity

Inactive Publication Date: 2009-02-18
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the average pore size in the fine filter layer is not less than 5 μm, the filtration efficiency of this filter material is limited.

Method used

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  • Double-layer filter material for internal combustion engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1, double-layer filter material for internal combustion engine air filtration

[0024] The structure of double-layer filter material for internal combustion engine is as follows: figure 1 As shown, a coarse filter layer 2 and a fine filter layer 3 are arranged according to the fluid flow direction 1 .

[0025] The coarse filter layer 2 is made up of 82% coarse filter natural fibers and 18% synthetic fibers by mass fraction; wherein the coarse filter natural fibers have an average diameter of 18 μm and an average length of 8 mm; the synthetic fibers have an average diameter of 20 μm, The average length is 8mm.

[0026] The fine filter layer 3 is composed of fibrillated fibers 4 with a mass fraction of 50% and natural fibers in the fine filter layer; wherein the average diameter of the fiber trunk of the fibrillated fibers 4 is 12 μm, the average length is 6 mm, and the beating degree is 30 0 SR; The natural fibers of the fine filter layer have an average dia...

Embodiment 2

[0029] Embodiment 2, double-layer filter material for internal combustion engine oil filtration

[0030] The structure of double-layer filter material for internal combustion engine is as follows: figure 1 As shown, a coarse filter layer 2 and a fine filter layer 3 are arranged according to the fluid flow direction 1 .

[0031] The coarse filter layer 2 is made up of 85% coarse filter natural fibers and 15% synthetic fibers by mass fraction; wherein the coarse filter natural fibers have an average diameter of 45 μm and an average length of 5 mm; the synthetic fibers have an average diameter of 25 μm, The average length is 20mm.

[0032] The fine filter layer 3 is composed of fibrillated fibers 4 with a mass fraction of 5% and fine filter layer natural fibers with a mass fraction of 95%; wherein the fiber trunk average diameter of the fibrillated fibers 4 is 18 μm, and the average length is 9 mm. The degree is 15°SR; the average diameter of natural fibers in the fine filter l...

Embodiment 3

[0035] Embodiment 3, the double-layer filter material that is used for internal combustion engine fuel oil filtration

[0036] The structure of double-layer filter material for internal combustion engine is as follows: figure 1 As shown, a coarse filter layer 2 and a fine filter layer 3 are arranged according to the fluid flow direction 1 .

[0037] The coarse filter layer 2 is made up of 88% coarse filter natural fibers and 12% synthetic fibers by mass fraction; wherein the average diameter of the coarse natural fibers is 60 μm, and the average length is 7 mm; the average synthetic fiber diameter is 30 μm, The average length is 20mm.

[0038] The fine filter layer 3 is composed of 100% fibrillated fibers 4 with an average trunk diameter of 3 μm, an average length of 1 mm, and a beating degree of 60°SR.

[0039] Wherein the fibrillated fiber 4 is a mixture of fibrillated Tencel fiber and Lisa fiber. The natural fibers of the coarse filter layer are mercerized plant fibers, ...

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Abstract

The invention provides a double-layer filtering material for an internal combustion engine. The double-layer filtering material is provided with a coarse filtering layer and a fine filtering layer according to the direction of flow; the fine filtering layer consists of fibrillating fiber with the quality fraction between 2 to 100 percent and natural fiber with the quality fraction between 0 to 98 percent, wherein the diameter of the trunk of the fibrillating fiber is 1 to 20 microns, the length of the fibrillating fiber is 0.1 to 10 millimeters, the beating degree of the fibrillating fiber is 12 to 65 degrees SR, the diameter of the natural fine filtering layer fiber is 5 to 30 microns, and the length of the natural fine filtering layer fiber is 0.5 to 3.5 millimeters. The double-layer filtering material realizes to improve the filtering efficiency of the filtering material while keeping low filtration resistance and high capacity of holding dust.

Description

technical field [0001] The invention relates to the technical field of filtration, in particular to a double-layer filter material for an internal combustion engine. Background technique [0002] Filter materials for internal combustion engines are used for the filtration of various fluids required during the working process of internal combustion engines, mainly including air filtration, oil filtration and fuel filtration of internal combustion engines. High dust holding capacity and high filtration efficiency while maintaining low filter resistance are desirable properties for this type of material. [0003] For filter materials with a macroscopic homogeneous structure, in order to make them have low filtration resistance and high dust holding capacity, it is necessary to use fibers with thicker diameters or fibers with crimps to increase the bulk of the material, but this will lead to filtration A drop in efficiency. On the other hand, in order to make the filter materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/16B01D39/18B32B5/26F02M35/024
Inventor 胡健梁云杨进王宜于天
Owner SOUTH CHINA UNIV OF TECH
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