KR200301453Y1 - Oil-Filter - Google Patents

Abstract

The present invention relates to an oil filter, and is provided with an oil filter having a base housing that is equipped with a washable filter material, which is reusable and easy to be removed and detached for washing as well as mold compatible with other vehicles.

The present invention for this purpose is to separate the oil filter housing into the base housing 22 and the cap 25, which serves as a central portion, the base housing 22 has a separate inner ring (28) to be compatible with the mold of the base housing And the inner ring mounting portion 26, the inner ring 28 is a filter unit 32 provided with a metal fiber filter medium 30 that accommodates only the advantages of paper filter media and metal filter media by sintering metal fibers in an irregular lamination manner. ) Is detachably mounted.

In addition, the relief valve 19 is equipped with a filter net 46 so that the filtered engine oil is bypassed when the relief valve is opened, the upper surface of the upper cap (60_) and the filter net is fitted with the engine oil flows into The magnetic body 64 is press-fitted to the inlet side of the relief valve so that iron contained in the engine oil is collected.

Description

Oil Filter {Oil-Filter}

The present invention relates to an oil filter, and more particularly, to an oil filter having a base housing which is equipped with a washable filter material, which is reusable and easy to be removed and detached for washing, and which is mold compatible with other vehicles. .

In general, many parts of the engine are rubbed against each other during rotation, and the forces used in the friction part are all resistance and loss against the force obtained in the expansion stroke of the cylinder.

In addition, the friction between the parts naturally wears the parts to shorten the service life and causes the overall performance of the engine to decrease.

Accordingly, as shown in FIG. 1, the installation of a lubrication system is essential for an internal combustion engine (engine) such as a vehicle, and the lubrication system performs a gamma action, a cooling action, a sealing action, a buffering action, a rust preventive action, and a clean action.

The lubrication system for this is composed of an oil pan (1) filled with engine oil and an oil pump (not shown), an oil filter (2) and a lubrication line (not shown) for delivering oil.

Of these, the oil filter 2 performs a function of removing impurities contained in the engine oil.

In other words, the engine oil discharged from the oil pump lubricates the inside of the engine and returns to the oil pan (1). At the same time, lubrication cooling of the crank shaft or camshaft, which is the main movement part, and metal powder caused by combustion residue or friction inside the engine. Is carrying out a clean-up operation.

In particular, the impurity is contained in the engine oil during the cleaning operation, and it is the oil filter 2 to remove impurities contained in the engine oil.

The oil filter 2 is divided into a mounting cap 4 and a housing 5, including the filter unit 3, as shown in the enlarged cutaway perspective view of FIG. 1 and FIG. 2. Type oil filter.

The filter unit (3) prevents damage to the filter medium (6) and the center tube (7), upper and lower caps (8) (9) for supporting the filter medium (6) when water pressure is applied, and the filter medium (6) during overpressure. It includes a relief valve 19 for bypassing.

In addition, the mounting cap 4 is a seaming cap 13 and packing for coupling the reinforcing plate 12 and the mounting cap 4 and the housing 5 in which the inlet 10 and the outlet 11 of the engine oil are formed. (14) is included, the discharge port 11 is provided with a tapping portion 15 for fastening to the filter block of the engine, the inner packing is installed to prevent the reverse flow of the engine oil when the engine is stopped, depending on the vehicle model .

On the other hand, the housing is formed with a rib 16 to be engaged with a separate jig for the removal of the filter, the support spring 18 mounted therein is for pressing the filter unit 3, shown is a coil Coil spring type is shown among spring type and leaf spring type.

The filtration function of the oil filter 2 is performed by the filter medium 6, and the bursting strength is required to be performed so as to perform the filtration function for a long time, and the filtration efficiency having a pore size for filtering fine impurities. Is required.

The filter medium 3 is generally folded and mounted to increase the filtration area, and is generally made of paper.

However, such a cartridge type oil filter had a problem in that the mounting cap 4 had to be remolded every time a new model was developed, and above all, the cartridge type oil filter replacement was disposed of as a replacement of the entire oil filter 2. Environmental pollution was a challenge.

That is, as described above, since the cartridge type oil filter 2 is combined with the mounting cap 4 and the housing 5 by the seaming cap 13, the metals and rubber packings after the oil filter 2 is collected and Separation and collection of contaminated filter media is difficult in reality, so that it is simply landfilled or incinerated, causing soil, water and air pollution.

In particular, considering the oil filter that is replaced by the cartridge barrel when driving from 5000km to 10,000km and the number of domestic vehicles owned, the environmental pollution problem of the oil filter itself has reached a level that cannot be ignored.

Of course, in the newly developed models, the filter housing is integrated with the engine by die casting and the filter unit is replaced. However, the performance guarantee of the filter housing being integrated with the engine is not assured, and all the vehicle models are replaced with the filter housing integrated engine. Until now, the use of oil filters of simple replaceable cartridge types is an inevitable reality.

Therefore, in the "EU Junk Cars Act", which came into force on October 21, 2000, in consideration of various environmental regulations such as paying environmental burden when disposing of automobiles, cartridge type oil filter is installed in existing engines. Although the mounting reality is recognized, there is a demand for improvement of the cartridge type oil filter.

On the other hand, in order to solve this problem to some extent, a cartridge type oil filter is provided as a separate housing rather than a seaming coupling, and a stainless steel mesh filter medium has been developed to improve and reuse the burst strength even in the filter medium.

However, even if the oil filter of the cartridge type of the housing detachable type is developed, it is essential to shape the housing according to the vehicle type.

That is, as described above, it is essential to include the function of the mounting cap 4, and even if a separate housing is provided, the tapping part 15 is molded. Since the tapping part 15 varies depending on the vehicle type, There is a problem that mold compatibility is difficult.

In addition, it is urgent to improve the detachable means for detaching the filter unit of the oil filter of the housing detachable cartridge type.

Furthermore, when comparing the metal filter network and the paper filter material, as shown in FIG. 3 showing the microstructure, the paper filter material has a uniform porosity, whereas the metal filter network has a uniform porosity, which lowers the filtration efficiency. have.

That is, the porosity of the paper filter material is 25 ~ 105 (㎛) irregular and lateral cross-section laminated structure, the porosity of the metal filtration network is about 65 (㎛) regular and lateral cross-sectional single layer structure is a woven mesh of metal woven uniformly. .

Therefore, the filter medium of the paper material is excellent in filtration performance by the distribution of the irregular porosity, but it is impossible to wash due to the fibrous structure, there is a fear that it is damaged by the differential pressure in the oil filter.

On the other hand, the metal filtration network has a strong burst strength due to the nature of the metal, and can be washed and reused, but the filtration efficiency is poor due to the same porosity, which may lead to improvement.

In addition, in the relief valve 19 mounted on the filter unit 3, when the pressure in the filter is increased due to the pores blocked by the filter medium, the relief valve is opened, and at this time, the engine oil is not filtered through the relief valve. There was also a problem that the engine oil is circulated to cause damage to the engine.

In order to solve the above problems, the present invention provides an oil filter having a base housing that is compatible with molds for other vehicles as well as being easy to remove and detach for cleaning, which is equipped with a washable filter material. The purpose is to.

In order to achieve this, the present invention separates the oil filter housing into a base housing and a cap serving as a center portion, and the inner housing has a separate inner ring and inner ring mounting portion to enable mold compatibility of the base housing. The metal fiber is sintered in an irregular lamination method, and the filter unit provided with the metal fiber filter medium containing only the advantages of the paper filter medium and the metal filter material is detachably mounted.

In addition, the relief valve is equipped with a filter net so that the filtered engine oil is bypassed when the relief valve is opened, and a magnetic material is pressed into the upper surface of the upper cap where the engine oil flows in and collides with the inlet side of the relief valve equipped with the filter net. Iron contained in the engine oil is to be collected.

1 is an enlarged explanatory view of a partial cutaway showing a conventional oil filter,

Figure 2 is a cutaway explanatory view showing the structure of a conventional oil filter,

3 is an enlarged view illustrating the structure of the paper filter material and the metal filter network;

4 is an explanatory cross-sectional view showing an oil filter according to the present invention;

5 is a tissue explanatory diagram for explaining a metal filter material according to the present invention,

6 is a plan explanatory view showing a filter unit according to the present invention;

Figure 7 is an enlarged explanatory view of the portion A of Figure 4 showing the detachable means of the filter unit according to the present invention.

-Explanation of symbols for the main parts of the drawings-

7-center tube, 10-inlet,

12-outlet, 14-packing,

15-tapping part, 20-housing,

22-base housing, 24-removable means,

25-cap, 26-inner ring mount,

28-inner ring, 30-metal fiber filter media,

32-filter unit, 34-removable means,

36-mating taps, 38-oil ring,

40-bolt head, 42-metal reinforcing net,

44-reinforcing groove, 46-filter net,

48-insert groove, 50-press-fit indentation,

52-mounting groove, 54-hanging jaw,

56-guided jaw, 58-coupling ring,

60-upper cap, 62-lower cap,

64-Ferrite, 66-Inner packing,

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the most preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. . Other objects, features, and operational advantages, including the purpose, working effects, and the like of the present invention will become more apparent from the description of the preferred embodiment.

For reference, the embodiments disclosed herein are only presented by selecting the most preferred examples to help those skilled in the art among various possible examples, and the technical spirit of the present invention is not necessarily limited or limited only by the embodiments. Various changes and modifications are possible within the scope without departing from the technical spirit of the present invention, as well as other embodiments that are equally clear.

Exemplary drawings Figure 4 is a cross-sectional explanatory view showing a filter according to the present invention, Figure 5 is an organizational explanatory view for explaining a metal filter material according to the present invention, Figure 6 is a plan view showing a filter unit according to the present invention , Figure 7 is an enlarged conceptual view of the portion A of Figure 4 showing the removable means of the filter unit according to the present invention.

According to the present invention, the housing 20 of the engine oil filter is mounted on the filter block to form a connection with the oil filter, and a cap 25 which is detached from the base housing 22 via the detachment means 24. In addition, the inner ring mounting portion 26 is formed in the base housing 22, and the inner ring 28 having the tapping portion 15 for coupling with the filter block is coupled thereto. The filter unit 32 provided with the metal fiber filtration material 30 sintered by the metal fiber by the lamination method in the 28) is an oil filter mounted via the removal means 34. As shown in FIG.

Here, the detachable means 24 of the housing has a coupling tapping portion 36 formed at the connection portion between the base housing 22 and the cap 25, and the oil ring 38 is mounted therein, and the cap 25 The tip of the head is characterized in that the bolt head 40 is integrally molded.

In addition, the inner ring mounting portion 26 is characterized in that the inner ring 28 is formed integrally with the base housing 22 by inserting the inner ring 28 separately formed in the mold when the base housing 22 is cast.

In addition, the filter unit 32 is a metal reinforcing net 42 is coupled to the metal fiber filter medium 30 to be pressure-resistant supported on the inside of the metal fiber filter medium 30, the metal reinforcing net 42 is radially reinforced grooves (44) is arranged so that the end of the reinforcing groove (44) is supported on the outer periphery of the center tube (7), while the filter net (46) is provided on the inlet side of the relief valve (19).

In addition, the inserting and removing means 34 of the inner ring and the filter unit have an insertion groove 48 formed on the outer circumference of the inner ring 28, and are press-fitted along the outer circumference of the inner ring 28 while being connected to the insertion groove 48. A locking jaw 54 is formed at the end of the mounting groove 52 and the mounting groove 52 parallel to the inclined groove 50 and the outer circumferential surface thereof, while the insertion groove 48, the press-fit inclination groove 50 and the mounting groove ( Induction jaw 56 is inserted into the seat 52 is formed on the inner circumference of the coupling ring 58, the coupling ring 58 is characterized in that formed on the upper cap 60 of the filter unit 32.

In addition, the housing 20 is provided on the inlet side of the upper cap 60 of the filter unit 32 and the inlet side of the relief valve 19 in which the engine oil introduced therein collides with the iron powder of the engine oil introduced therein. The magnetic material 64 is pressed into the inner surface of the adjacent cap 25.

As described above, the present invention provides a reusable oil filter of the filter unit 32 and is applied to an existing cartridge type oil filter.

In addition, the present invention provides an oil filter including a base housing 22 in which an inner ring 28 and an inner ring mounting portion 26 are formed to be compatible with other vehicles in a manufacturing process.

The present invention for this purpose is the housing 20 is separated into the base housing 22 and the cap 25, it is possible to remove by being coupled via the removable means 24.

The base housing 22 is formed by die casting, and the outlet 11 provided by the inlet 10 and the inner ring 28 is formed to include the function of the existing mounting cap, and the oil tightness with the engine filter block is formed. Packing 14 is installed.

Here, the inner ring 28 forming the discharge port 11 is made of a separate material and combined with the base housing 22, and the inner ring 28 provides compatibility of the mold in the manufacturing process.

That is, even in a small vehicle having a similar engine in the existing oil filter, mold compatibility is difficult due to the dimensional difference between the tapping part 15 for coupling the filter block and the oil filter.

By the tapping part 15, the above-described mounting cap part was manufactured separately for each vehicle type.

However, in the present invention, the molds can be compatible in the manufacturing process by replacing the inner ring 28, which is based on the base housing 22 and inserted into the base housing 22, to be integrally formed.

The housing is equipped with a filter unit 32 composed of a metal fiber filter medium 30 sintered with metal fibers, the metal fiber filter medium 30 is a filter material that combines the advantages of the above-described paper filter material and metal filter network.

That is, the metal fiber filter medium 30 is formed by sintering and irregularly arranging metal fibers, which is different from a metal filtration network having the same porosity as woven, and the metal fiber filter medium 30 is shown in FIG. 5. As shown in FIG. 3, an irregular laminated structure similar to the enlarged paper filter material is shown.

Table 1 is a measured porosity and side cross-sectional comparison table of the filter medium,

Metric Paper Filter Metal filtration net Metal fiber filter media Porosity (㎛) 25-105 (irregular) 65 (uniform) 30-85 (irregular) Side section structure Laminated structure Structure Laminated structure

As shown, the metal fiber filter medium 30 has a laminated side cross section while having an irregular porosity of 30 to 85 μm.

As a result, the filtration performance of the paper filter material and the excellent burst strength of the metal filtration network are obtained.

In more detail, the paper filter material, when impregnated with oil for a long time, the cohesive force of the tissue is gradually degraded, and the pressure difference generated in the filter is increased due to the accumulation of contaminants and clogging the pores, thereby reducing the tear strength of the paper tissue.

On the other hand, the metal filtration network cannot be used as a filtration for contaminant particles of less than about 50㎛ due to the monolayer structure and porosity. Therefore, the filtration function is weak. The metal fiber filter medium 30 made of metal fibers can overcome both the disadvantages of the paper filter material and the disadvantages of the metal filter material.

The metal fiber filter medium 30 is supported by the metal reinforcement net 42 to prevent deformation due to the differential pressure in the filter, the reinforcement groove 44 is radially increased to increase the support stiffness of the metal reinforcement net 42 It is arranged so that the tip is in contact with the center tube (7) to support the internal pressure.

Mounting of the metal fiber filter medium 30 is preferably welded argon for sealing the cut portion, the metal fiber filter medium 30, the upper cap 60 and the lower cap 62 is equipped with a metal reinforcing network 42 And the mounting method is an adhesive method using an adhesive, it will be common that the sealing is performed along with the mounting of the upper cap 60 and the lower cap 62 by curing after applying the adhesive.

Due to the characteristics of the metal fiber structure, it is possible to wash at high pressure, and to reuse the filter at a high pressure wash using a solvent or the like.

On the other hand, the filter unit 32 of the present invention is equipped with a filter net 46 on the inlet side of the relief valve 19, the filter net 46 is mounted there will be sufficient as the above-described metal filter net.

That is, the opening of the relief valve 19 is opened to prevent breakage of the filter medium when the filter medium is heavily contaminated and the pressure in the filter is increased, and the circulation of the contaminated engine oil itself when opening the relief valve 19 causes damage to the engine. And filtering, such as conventional filter media, does not adequately circulate the engine oil, so it is desirable to have a filter net 46 to filter out only relatively large particles.

On the other hand, for the removal and remounting of the filter unit for cleaning the inner ring 28 and the filter unit 32, the demounting means 34 is mediated, the demounting means 34 to provide convenience of demounting It is preferable that the one-touch method is applied.

That is, the inner ring 28 is provided with an insertion groove 48, a press-fitted inclined groove 50 and a mounting groove 52 and a locking jaw 54 in parallel with the outer peripheral surface, the coupling ring 58 is inserted into them When the guide jaw 56 is formed and the guide jaw 56 is inserted into a relatively wide insertion groove as shown in FIG. 7 and then rotated, the guide jaw 56 is rotated upward along the indentation inclined groove 50, in particular, rubber Pressing is performed by inner packing 66 of the ash.

Next, the guide jaw 56 is seated in the mounting groove 52 and the locking jaw 54 limits the rotation of the guide jaw 56.

Therefore, when the groove portion and the guide jaw 56 are mounted in a symmetrical pair, a simple detachment is performed by rotating the filter unit 32 about 90 ° to 120 °.

However, the detachable means 24 applied to the separated housing 20 may include the coupling tapping part 36 and the oil ring 38 to secure the oil tightness and the fastening force thereof.

In addition to the filter unit 32 and the housing 20 separated from the present invention, the magnetic body 64 is embedded to effectively remove iron contained in the engine oil.

Here, the magnetic body 64 is preferably to remove the iron before the engine oil reaches the filter medium, and is preferably installed between the cap and the lower cap in which the engine oil is partially.

Most preferred as the position is the upper cap 62 portion where the engine oil collides in the flow of the engine oil after the engine oil is introduced into the oil filter, and the filtering net by iron which is to be bypassed when the relief valve 19 is opened. It is preferable to press in the inside of the cap 25 adjacent to the inlet side of the relief valve 19 to prevent pore closure of the 46.

As described above, according to the present invention, since the filter unit is made of a metal fiber filter material and can be removed and reassembled, the filter unit can be washed and reassembled, thereby enabling fundamental prevention of environmental pollution by incineration or landfilling due to the disposal of the oil filter. It is effective.

In addition, when the vehicle is dismantled, the parts of the oil filter except for the packing parts are metallic materials, and the separate collection of the packing materials is possible, so that the recycling is easy.

In addition, since the base housing is compatible with the mold, there is an effect that the parts are simplified and productivity is improved.

Claims (5)

The housing 20 of the engine oil filter is separated into a base housing 22 which is mounted to the filter block to form a connection with the oil filter, and a cap 25 which is detachable from the base housing 22 via the detachment means 24. In addition, an inner ring mounting portion 26 is formed in the base housing 22, and an inner ring 28 having a tapping portion 15 for coupling with the filter block is coupled thereto, and to the inner ring 28. An oil filter in which a filter unit 32 provided with a metal fiber filter material 30 sintered with metal fibers in a lamination method is installed through a detaching means 34. The inner ring mounting portion 26 is formed of an integrally formed with the base housing 22 by inserting the inner ring 28 separately formed in the mold during the casting of the base housing 22. Oil filter. According to claim 1, wherein the filter unit 32 is a metal reinforcing net 42 is coupled to the metal fiber filter medium 30 to be pressure-resistant supported inside the metal fiber filter medium 30, the metal reinforcing network 42 is Oil is characterized in that the reinforcing groove 44 is arranged radially so that the end of the reinforcing groove 44 is supported on the outer periphery of the center tube 7, while the filter net 46 is provided at the inlet side of the relief valve 19. filter. According to claim 1, Removable means 34 is an insertion groove 48 is formed on the outer circumference of the inner ring 28, the indentation inclined groove along the outer circumference of the inner ring 28 while being connected to the insertion groove 48 A locking jaw 54 is formed at the end of the mounting groove 52 and the mounting groove 52 parallel to the outer peripheral surface 50, while the insertion groove 48, the press-fit inclination groove 50, and the mounting groove 52 are formed. Induction jaw 56 is inserted into the seat is formed on the inner circumference of the coupling ring 58, the coupling ring 58 is an oil filter, characterized in that formed on the upper cap (60) of the filter unit (32). The upper surface of the upper cap 60 of the filter unit 32 and the relief valve 19 of the filter unit 32 in which the engine oil introduced to collect the iron powder of the engine oil introduced into the housing 20 collide with each other. Oil filter, characterized in that the magnetic material 64 is pressed into the inner surface of the cap 25 adjacent to the inlet side.