KR200196681Y1 - Oil filter - Google Patents

Abstract

The present invention relates to a lubricating oil filter, a cap housing (110) having a capstiffener (111) formed with an inlet (114) and an outlet (115), and embedded in the cap housing (110) and entering the inlet (114). The element to filter the lubricating oil to be discharged to the outlet 115, and the check valve 140, which is installed between the cap stiffener 111 and the element so that the lubricating oil does not flow back to the inlet (114), In the lubricating oil filter including a spring 130 is installed in the cap housing to be in close contact with the cap stiffener 111, the element 120 is made of metal upper and lower caps 121 and 122; It is installed between the upper cap 121 and the lower cap 122, and comprises a filtering net 123 consisting of a thick wire 123a of metal interwoven with each other and a thin wire 123b of metal. Such a lubricating oil filter has the effect of maintaining the filtration capacity even at high speeds of operation or long use of the vehicle, easily recycled, mass-produced, and environmentally friendly.

Description

Lube oil filter {Oil filter}

The present invention relates to a lubricating oil filter which is installed in the power engine to remove foreign substances mixed in the lubricating oil.

Referring to FIG. 1, a conventional lubricant filter includes a cap housing 10 made of metal, an element 20 installed inside the cap housing 10, and a cap housing 10. ) And a spring 30 installed between the element 20 and a rubber check valve 40 to prevent backflow of the lubricating oil flowing therein.

The cap housing 10 includes a cap stiffener 11, a case 12, and a cap seaming 13 for seaming the cap stiffener to the case 12. The capstiffener 11 is formed with an inlet port 14 which is located outside the element 20 to introduce lubricating oil and an outlet port 15 which is located inside the element 20 to discharge lubricating oil.

The element 20 consists of an upper cap 21 made of metal, a lower cap 22, a reinforcement plate 23, a filter 24 made of pulp or nonwoven fabric, and is elastically biased by a spring 30 to form a cap. It comes in close contact with the stiffener 11. The reinforcement plate 23 supports the upper cap 21 and the lower cap 22 to maintain the shape of the filter 24. The filter 24 has a shape that is folded several times like an accordion in order to increase the area through which the lubricating oil passes, and both ends of the filter 24 are bonded to the upper cap 21 and the lower cap 22 by an epoxy resin 26. have.

Lubricant filter of this structure, when the lubricating oil is introduced into the inlet 14 below the predetermined hydraulic pressure, the lubricating oil is filtered through the filter 24 made of pulp or nonwoven and then discharged to the outlet 15 to enter the engine do.

However, the conventional lubricating oil filter having the components as described above has the following problems.

First, a filter made of pulp or nonwoven fabric requires a large number of lubricant filters, depending on the engine capacity, since the amount of lubricating oil is absolutely proportional to the area.

Second, when the vehicle suddenly runs at high speed, the pressure of the oil pump rises rapidly and the lubricating oil flows into the high pressure state. The filter is damaged. Then, the lubricating oil is introduced into the element 20 without being properly filtered and then discharged into the outlet 15. Therefore, the foreign matter contained in the lubricating oil flows directly into the engine, thereby shortening the life of the engine and deteriorating fuel economy.

Third, since the diameter of the lubricating oil filtration gap is irregular from as small as 25 μm to as large as 250 μm, and the filter is thick, the path formed by the filtration gap becomes substantially long. Therefore, the long filtration gap is easily clogged by foreign matter, and even if it passes through the filter, because the diameter of the filtration gap is irregular, some foreign matter is not filtered by the filter and is included in the lubricant as it is.

Fourth, the filter made of pulp or nonwoven fabric always impregnated pollutants composed of lubricating oil and foreign matter, and thus was not recyclable. In addition, when disposing of the lubricating oil filter, it was necessary to separate the filter containing the pollutant, and since it was impossible to remove the seam capstiffener substantially from the case, there was no disposal method except landfill. Therefore, there is a problem that soil is contaminated.

Fifth, the filter had to be folded and processed many times like an accordion to increase the filtration area, and a large amount of epoxy resin was used to adhere the folded filter to the upper cap and the lower cap, and a sintering process was necessary. In other words, in bonding the filter to the upper cap and the lower cap, the epoxy resin is placed on the adhesive side of the filter, and then baked and sintered in a heat of 130 ° C. to 150 ° C. for 120 seconds. Mass production was an obstacle.

Sixth, there was a problem that a large amount of toxic substances such as dioxin is discharged in order to manufacture a filter made of pulp or nonwoven fabric.

The present invention has been made in order to achieve the above object, the object of the present invention is to provide a lubricating oil filter that can maintain the filtration capacity even at high speeds of driving or long-term use, can be easily recycled, mass-produced, environmentally friendly It is done.

1 is a half sectional view of a conventional lubricating oil filter,

Figure 2 is a half sectional view of the lubricating oil filter of the present invention,

3 is an exploded perspective view of the element of FIG. 2, FIG.

<Description of Signs of Main Parts in Drawings>

110 ... cap housing 111 ... capstiffener

112 ... Case 113 ... Capsiming

114 ... inlet 115 ... outlet

120 ... element 121 ... upper cap

121a ... hole 122 ... lower cap

123 ... strainer 123a ... thick line

123b ... fine line 125 ... safety valve

125a ... inner cap 125b ... valve plate

125 c ... safety valve spring 130 ... spring

140 ... check valve

In order to achieve the above object, the lubricating oil filter according to the present invention, the cap housing 110 having a capstiffener 111 formed with an inlet 114 and outlet 115, and built in the cap housing 110 A filter installed to filter the lubricant flowing into the inlet 114 and discharge the lubricant to the outlet 115, and installed between the cap stiffener 111 and the element so that the lubricant does not flow back into the inlet 114. In the lubricant filter including a valve 140, the spring 130 is installed in the cap housing so that the element is in close contact with the cap stiffener 111, the element 120 is made of metal upper and lower caps ( 121) 122; It is installed between the upper cap 121 and the lower cap 122, characterized in that it comprises a filter net 123 consisting of a thick line 123a of metal interwoven with each other and a thin line 123b of metal. .

Here, the inner cap (125a) formed in the inner direction of the element in the lower cap 122, the valve plate 125b is installed in the center of the lower cap 122, between the inner cap (125a) and the valve plate (125c) It further comprises a safety valve 125 composed of a safety valve spring (125c) installed in.

On the other hand, the thick line 123a of the filter net is 0.2mm to 0.4mm, the thin line 123b is 0.1mm to 0.3mm, and the diameter of the filtration gap formed by the thick line 123a and the thin line 123b is It is preferable that they are 25 micrometers-80 micrometers.

In addition, the check valve 140 may be made of metal.

Hereinafter, the lubricating oil filter according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a half sectional view of the lubricating oil filter of the present invention, Figure 3 is an exploded perspective view of the element of Figure 2;

Referring to FIG. 2, the lubricant filter according to the present invention includes a cap housing 110 made of metal, an element 120 made of metal installed inside the cap housing 110, and a backflow of a lubricant flowing therein. And a check valve 140. At this time, the cap housing 110 is provided with a spring 130 so that the element 120 is in close contact with the capstiffener 112 to be described later.

The cap housing 110 includes a cap stiffener 111, a case 112, and a cap seaming 113 for seaming the cap stiffener 111 to the case 112. The capstiffener 111 is formed with an inlet port 114 formed outside the element 120 to introduce lubricating oil and an outlet port 115 positioned inside the element 120 to discharge lubricating oil. The outlet 115 is formed at the center of the cap stiffener 111, the inlet 114 is formed around the outlet 115 at a predetermined interval.

The element 120 is elastically biased by the spring 130 to be in close contact with the cap stiffener 111. This element 120 is the upper and lower caps 121 and 122 made of metal, and the filter net 123 of the metal installed between the upper cap 121 and the lower cap 122, and a lubricant of a predetermined hydraulic pressure or more When it is introduced is composed of a safety valve 125 to be opened to flow as it is. At this time, a hole 121a corresponding to the outlet 115 is formed at the center of the upper cap 121. Accordingly, the inlet 114 of the capstiffener 111 is located outside the element 120 and the outlet 115 is located corresponding to the hole 121a of the upper cap.

The filter net 123 is entirely made of metal is seamed tightly to the upper cap 121 and the lower cap 122. This seaming, as shown in Figure 3, is made of a punching process by pressing in a state in which the filter net 123 is coupled to the coupling groove 122a of the upper and lower caps 121 and 122. Therefore, it is possible to mass-produce without the use of an epoxy resin or a sintering process used to fix the conventional filter.

The filter net 123 is a mesh formed by intersecting thin lines 123b with thick lines 123a arranged at equal intervals. The thick line 123a is 0.2 mm to 0.4 mm in diameter, the thin line 123b is 0.1 mm to 0.3 mm in diameter, and in this embodiment, the thick line 123a is 0.36 mm and the thin line 123b is 0.25 mm. . The diameter of the filtration gap through which the lubricating oil formed by the thick lines 123a and the thin lines 123b passes is approximately 25 µm to 80 µm, and is 65 µm in this embodiment. This is because the filtration gap of a filter made of a conventional pulp or nonwoven fabric has an irregular filtration gap of about 25 μm to 250 μm, and the filtration gap of the present invention is dense and uniform. Such a filtering net is preferably made of chemically stable stainless net or steel net.

Since the filter network is made of a metal with high pressure resistance, even if a vehicle suddenly runs at high speed and a large amount of lubricant is introduced at a large pressure, the lubricant is filtered without damage. Therefore, even a large amount of lubricating oil can be filtered, so that foreign matters can be prevented from entering the engine. In addition, since the pressure resistance is large, the lubricating oil filtration capacity is very large compared to the conventional filter. Therefore, because the capacity range of the engine that can be covered is large, the filter of the present application can be commonly applied to various kinds of engines. In addition, the thickness of the filtration net is less than 1 mm, and the thickness is thinner and the filtration gap is uniform as compared with a filter (usually 2 mm or more) made of a conventional pulp or nonwoven fabric. Therefore, since the path formed by the filtration gap is substantially short, it is not blocked by foreign matter. In addition, since the filtration gap is dense and uniform, foreign matter not filtered by the conventional filter can be filtered. On the other hand, since the filter net is made of metal, the whole filter is made of metal, therefore, it is not necessary to separate and discard the filter net separately, and it is very easy to recycle and environmentally friendly. In addition, the filtration net is substantially large in filtration capacity because of its high pressure resistance. Therefore, the conventional filter does not need to be folded and processed as many times as the accordion in order to increase the filter area, and there is no need for the use and squeezing process of epoxy resin for bonding the filter net to the upper cap and the lower cap. Therefore, mass production is possible and the production time as well as the production cost can be reduced.

The safety valve 125 includes an inner cap 125a formed in the lower cap 122 in an element-inward direction, a valve plate 125b installed at an approximately center of the lower cap 122, an inner cap 125a, and a valve plate ( It consists of the safety valve spring 125c installed between 125c). When the high pressure lubricant flows suddenly when the filter is employed in a large-capacity engine when the filter is employed in the large-capacity engine, the safety valve 125 pushes the valve plate 125b by the hydraulic pressure so that the lubricant flows directly into the element 120. Allow lubricant to enter the engine.

The check valve 140 is installed between the cap stiffener 111 and the upper cap 121 to prevent backflow of lubricating oil. The check valve 140 is formed to be complementary to the inner surface of the cap stiffener 111, when lubricating oil is to flow back to the inlet 114, while being raised by the hydraulic pressure of the lubricating oil is in close contact with the cap stiffener 111 inlet Block 114. At this time, the check valve 140 is also made of rubber, it may be made of metal to facilitate recycling.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached utility model registration claims.

As described above, the lubricating oil filter according to the present invention is small in size but high in pressure resistance, so that a large amount of lubricating oil can be filtered. Therefore, one filter can be commonly used in various types of engines.

In addition, since the whole is made of metal, it is very easy to recycle as well as environmentally friendly.

In addition, since the filtration gap is dense and uniform, even small foreign matters are perfectly filtered.

In addition, the lubricated oil can be stably supplied to the engine to smooth the piston movement in the cylinder to prevent vaporization and knocking due to high heat, and to reduce fuel waste and prevent overload of the cooling fan and water pump. Noise is also reduced.

Claims (5)

The cap housing 110 having the capstiffener 111 having the inlet 114 and the outlet 115 formed therein, and the lubricating oil introduced into the cap housing 110 and flowing into the inlet 114 are filtered out. And a check valve 140 installed between the cap stiffener 111 and the element to prevent lubricating oil from flowing back into the inlet 114, so that the element is in close contact with the cap stiffener 111. In the lubricant filter comprising a spring 130 is installed in the cap housing, The element 120 includes upper and lower caps 121 and 122 made of metal; It is installed between the upper cap 121 and the lower cap 122, characterized in that it comprises a filter net 123 consisting of a thick wire 123a of metal interwoven with each other and a thin wire 123b of metal Lubricant filter. The method of claim 1, An inner cap 125a formed in an inner direction of the element in the lower cap 122, a valve plate 125b installed at an approximately center of the lower cap 122, and installed between the inner cap 125a and the valve plate 125c. Lubricating oil filter further comprises a safety valve (125) consisting of a safety valve spring (125c). The method of claim 1, The thick line 123a of the filter net is 0.2mm to 0.4mm, and the thin line 123b is 0.1mm to 0.3mm. The method of claim 3, Lubricating oil filter, characterized in that the diameter of the filtration gap formed by the thick line (123a) and the thin line (123b) is 25㎛ ~ 80㎛. The method of claim 1, The check valve is a lubricant filter, characterized in that the metal.