JPH11333214A - Filter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it easy to separate and fractionate a non-combustible part and a combustible part by forming a case with a fluid introduction aperture and a treated fluid delivery aperture and the holding member of a filter for an incombustible material and also forming a cylindrical body which is discrete from the case and the holding member, and supports a separable filer for a combustible material, of a sheetlike body of a paper-making material with numerous through holes. SOLUTION: Oil flows into the whole interior of a case 1 from a gap between a valve body 7b and a blocking plate 1e which is formed by the flexible deformation of the valve body 7b under the pressure of the oil entering introduction apertures 1d, 1d. Further, the oil finds its way into an internal combustion engine through a filter medium 4, a through hole, a cylindrical body 3a and an installed pipe body 1c. The used oil flows into a filter for treating the oil from a delivery aperture and thus a circulatory route is constituted. The case is formed of an incombustible material such as a metallic material e.g. steel and a filter 2 is formed of a combustible material of a cylindrical body around the periphery of which a filer medium such as a pleated filter paper is wound with both ends fixed with a plate, and the cylindrical body of a supporting member 3 is formed of a sheetlike body with numerous through holes, which is made of paper impregnated or not impregnated with a resin and rolled with both end parts fastened. Thus, a combustible part and an incombustible part of the device are easily separated and dispose of the used oil is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter device such as an oil treatment filter for filtering lubricating oil of an internal combustion engine of a motor vehicle. The present invention relates to a filtered filter device.

[0002]

2. Description of the Related Art Lubricating oil is used in the fields of automobiles, machine manufacturing, machining, machine tools, and ships, and the oil is circulated and used. At that time, an oil treatment filter is provided in the middle of the circulation circuit to filter the oil. In various fields, a filtration treatment is performed on a liquid containing various additives or a gas containing dust and the like.

For example, in the case of an oil filter for an internal combustion engine of an automobile or the like, a cartridge type oil treatment filter having an integral and non-disassemblable structure in which a filter made of a filter medium and a support member is incorporated in a steel case. Is used, and used oil discharged from an internal combustion engine is filtered and returned to the internal combustion engine, and is incorporated as an essential component in an oil circulation circuit.
If such a cartridge type oil treatment filter is used to a certain extent, the filtration capacity of the filter body is reduced, so that it is necessary to replace the filter with a new one. At that time, the used cartridge type oil treatment filter was buried and disposed of together with the attached oil and dust, or was discarded after being incinerated.

[0004]

However, if the cartridge type oil treatment filter is landfilled by disposal, for example, the number of automobiles is large and the number of discarded cartridge type oil treatment filters is huge. Therefore, not only does the land need to be reclaimed and a lot of land is required to change the selected land and the surrounding natural environment, but also the oil in the reclaimed land can penetrate into the surroundings, harm the environment, and protect the environment. There is a problem from the point. There are certain restrictions on landfills. On the other hand, in order to perform incineration, it is necessary to cut the cartridge type oil treatment filter and make it fine, or to incinerate it in a high-temperature furnace as it is, and after incineration, some steel recovery is also performed However, there is a problem in that it is deteriorated by oxidation, is disadvantageous in terms of strength and durability as a material to be reused, and is wasteful in terms of resource protection.
In order to solve such a problem, recently, an attempt has been made to cut the case portion of the cartridge type oil treatment filter and separate the case portion, the filter body and other members inside the case portion to facilitate the treatment. However, even in this case, the filter body is formed by winding a filter material such as a fold-shaped filter paper around a cylindrical support made of punched metal, both ends of which are sandwiched between metal plates, and one of the plates The structure is such that the components of the relief valve and the relief valve are integrated, and the integrated component is pressed and supported inside the case by a spring member of another member. The filter body is separated from the filter body, and if the filter body is incinerated as described above, the support of the metal material, the plate remains as a residue, and eventually, a part of the metal member of the metal case and the spring member. Can be yield not become a fundamental solution of the above problem, if degraded and processed into a member of the combustible material of the metal member and the filter paper in an attempt to avoid this,
The former can be collected and reused, and the latter can be incinerated,
Although the above problem can be solved, another problem arises in that it requires labor for disassembly. In addition, for cartridge type oil treatment filters and other filter devices, cost reduction is required to reach the limit,
Regarding the production of the support using a punching metal, further cost reduction is required in terms of the necessity of welding and the material. A first object of the present invention is to facilitate separation of a non-combustible portion and a combustible portion of a filter device such as an oil treatment filter, thereby facilitating the separation. A second object of the present invention is to increase the proportion of recyclable parts of the component and facilitate disposal of the discarded parts. A third object of the present invention is to make it possible to protect the environment and resources by eliminating the need for land for landfill, making it easy to incinerate, and leaving no residue other than ash. It is in. A fourth object of the present invention is to
An object of the present invention is to provide a filter device such as an oil treatment filter that can reduce manufacturing costs.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides (1) a filter device for introducing a fluid, performing a filtration treatment, and sending out the treated fluid. A case having an inlet for introducing the fluid and an outlet for sending out the treated fluid, and a support member having a tubular body having both ends open and having a through-hole. A filter provided in the case such that an opening on one end side of the body is communicated with the outlet and the inlet is communicated with the outside of the filter; and a holding member for holding the filter in the case. A filter device having a member, wherein the case and the holding member are made of an incombustible material, the filter body is integrally made of a combustible material, and the filter body is formed separately from the case and the holding member. To be separable, and Cylindrical body of the support member over the body is to provide a filter device obtained hold the winding end portions of the sheet having a plurality of through holes made of paper material. Further, the present invention provides (2) an oil circulation circuit which is provided by being connected to an oil use body for introducing and using the oil constituting one of the oil circulation circuits and delivering the used oil. In the constituent oil processing filter,
A case having at one end a delivery port and a delivery port communicating with an introduction section for introducing oil and a delivery section for delivering oil of the oil using body, and a support member having a tubular body having both ends open and having a through hole; A filter member is provided on the peripheral side of the cylindrical member, and one end side opening of the cylindrical member is provided in the case so as to communicate with the outlet and the outside of the filter member with the inlet. And the filter member, and at least one end of the tubular body of the support member is provided inside the other end of the case so as to press the inside of the one end of the case against the other end of the support member. An oil-permeable spring member, a valve seat provided at the other end side opening of the cylindrical body, a valve body, and a relief valve having a spring for pressing the valve body against the valve seat; Introduced from the inlet and passed through the through hole through the filter material Then, the oil is discharged from the one end side opening side of the cylindrical body to the outlet, and when the pressure reaches a predetermined pressure due to the clogging of the filter medium, the relief valve is operated to cause oil to flow into the cylindrical body at the other end. An oil treatment filter which is introduced from an opening side and is sent from the one end side opening side to the outlet, wherein the spring member and the relief valve are integrally formed of a noncombustible material, and the filter body is a combustible material. And an oil treatment filter which is formed integrally with the case, and the case, and the integral body of the spring member and the relief valve are provided separately and separably, and a support member for the filter body (3) a filter device which is an oil treatment filter obtained by winding a sheet having a large number of through-holes made of a papermaking material and fastening both ends thereof;
The relief valve has a frame body formed with an opening for a valve communicating with the opening on the other end side of the cylindrical body, the oil body being provided in the cylindrical body, and a spring housed in the frame body. Provide a valve body at the tip facing the valve opening,
A valve member having a through hole communicating with the valve opening between at least one of or both of a spring member and an end of the frame on the valve opening side; The other end side opening of the support member is closed by at least one of a member and a flange plate formed at the valve opening of the frame body except for at least a portion corresponding to the through hole,
And, the frame and the spring member are integrally formed at least at a part opposed to each other, and the valve body is moved within the frame by a predetermined oil pressure against the elasticity of the spring to remove oil from the frame. (4) The filter device according to (2), which is introduced into the cylindrical body, (1) to (3), wherein the papermaking material is at least one of paper impregnated or not impregnated with resin and mixed paper. (5), the mixed paper impregnated with resin is pulp material 90 to
The filter device according to any one of the above (1) to (4), comprising 30 parts by weight, 10 to 70 parts by weight of synthetic fibers, and 10 to 200 parts by weight of a curable resin as an impregnating resin. is there.

[0006] (6) When at least one of the spring member and the flange plate closes at least the portion corresponding to the through hole in the opening on the other end side of the cylindrical body, the spring member and the flange plate close the block. By contacting at least one of them with the other end face of the support member or with the other end face of the support member and pushing it into contact with the inner face of the other end of the tubular body. The filter device according to the above (2) to (5), (7), wherein the filter body is formed of at least one of a filter paper and a nonwoven fabric, a filter material formed in a pleated shape, and a tube having a large number of through holes using a papermaking material. (1) to (6) above, comprising a tubular member provided with the filter medium on its peripheral side and a plate closing at both ends of the filter member and made of at least one of paper and nonwoven fabric. ) To provide a filter device Door can be.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, one end is closed, the other end is opened, and an opening 1a is formed at the center by caulking at the periphery of the opening, and an annular groove is formed at an outer periphery. Board 1
b, a cylindrical case 1 is provided, and its mounting plate 1
Inside b, a closing plate 1e having a mounting pipe 1c at the center communicating with the opening 1a and having introduction holes 1d, 1d,... provided at equal intervals around the mounting pipe 1c is joined. Provided. A gasket 1f as a packing is detachably provided in the annular groove, and the mounting pipe 1c is provided with a threaded portion on an outer surface protruding from a flat plate-shaped bracket (not shown) attached to an internal combustion engine of an automobile. By screwing it into a body (not shown), the gasket 1f seals the gap between the closing plate and the flat plate-shaped bracket so that oil delivered from an oil delivery hole provided around the introduction pipe of the bracket does not leak. It has become. Figures 1 and 2
As shown in FIG. 2, reference numeral 2 denotes a filter, which is composed of a support member 3 and a filter medium 4. The support member 3 has a tip portion left at one end of a cylindrical body 3a having a large number of through holes, and at the other end,
The donut-shaped plates 3b and 3c are fitted respectively,
A fold-shaped filter medium 4 is wound around the cylindrical body 3a between the plates 3b and 3c, and the support member 3 and the filter medium 4 composed of the cylindrical body 3a, the plates 3b and 3c are integrally formed. As shown in FIG. 1, reference numeral 5 denotes a leaf spring provided inside the other end of the case 1, which is formed in a flat dish shape and has a plurality of cut grooves (not shown) formed in a peripheral portion thereof. And the central bottom plate 5a is
Is formed to be slightly larger than the size covering the other end side opening of the cylindrical body 3a, and a through-tube portion 5b projecting inward of the dish-shaped concave portion is formed at the center thereof. Reference numeral 6 denotes a relief valve, which has a cylindrical frame 6a having a large number of through holes (not shown) on the peripheral side, one end closed and the other open. A flange 6b is formed so as to be superimposed on the entire surface of the bottom plate 5a, and these flanges 6b and the central bottom plate 5a are joined. A spring 6c is housed inside the frame 6a, and a valve plate 6d is connected to the tip of the spring 6c. The valve plate 6d faces the opening of the frame 6a, and the valve plate 6d faces the opening of the center bottom plate 5a. The peripheral edge is formed on the valve seat 6e and is in contact with it. Thus, the leaf spring 5 and the relief valve 6 are integrally formed.

As shown in FIG. 1, reference numeral 7 denotes a dish-shaped valve body made of a flexible material such as rubber, and the mounting pipe body 1 is provided at the center thereof.
c, a mounting hole to be fitted therein is formed, and the cylindrical member 3a of the support member 3 fitted in the mounting tube 1c with a margin.
A peripheral wall 7a surrounding the outer surface on one end side is formed, and a distal valve body 7b provided on the outer peripheral side covers the introduction holes 1d, 1d,.
The leading edge is pressed against e by the elasticity of the material.

In such a configuration, in order to assemble the case, first, as shown in FIG. 1, a case body before mounting the mounting plate 1a of the case 1 is formed by integrating a leaf spring 5 and a frame body 6 with each other. Then, the filter body 2 shown in FIG. 2 is housed so that the frame 6 is inserted into the other end side of the cylindrical body 3a of the support member 3, and the other end side opening of the cylindrical body 3a is closed. The other end surface and the inner end of the plate 3c are brought into contact with the flange plate 6b so as to be covered with the flange plate 6b and the central bottom plate 5a of the spring member.
At one end. Then, the mounting tube 1c is inserted into the mounting hole of the valve body 7 with the previously assembled mounting plate 1b and closing plate 1e integrated with the closing plate 1e inside, and the mounting plate 1b is The filter body 2 is attached to the periphery of the opening 1 by caulking, and the filter body 2 is housed in the case 1 and is sandwiched between the leaf spring 5 and the closing plate 1e.

The same reference numerals as in FIG. 1 denote the same components as shown in FIG. 3, and as shown in FIG. 3, the central bottom plate 5'a of the leaf spring 5 '.
Is formed larger than the central bottom plate 5a to form the cylindrical body 3a
Of the relief valve 6 'is formed so as to abut the inner surface of the cylindrical body 3a. The center bottom plate 5'a is made to abut on the plate 3c at the outer end thereof, and the center bottom plate 5'a and the flange plate 6'b are joined to form the leaf spring 5 'and the relief valve 6'. Unite. In this way, the filter is filtered through the support member 3 composed of the cylindrical body 3a fitted into the protruding portion and the plate plate 3c abutting on the outer end of the central bottom plate 5'a. The positioning of the body 2 can be facilitated and the displacement can be prevented.

In this manner, the cartridge type oil treatment filter shown in FIGS. 1 and 3 is completed. When the filter is used, an introduction filter projecting from a flat plate-shaped bracket attached to an internal combustion engine (not shown) is used. The mounting pipe 1c is screwed into the outer thread portion of the pipe (the whole of which is an oil body) via a gasket 1f, and the gasket 1f seals between the pipe and the flat plate-shaped bracket. Oil is delivered from the delivery hole. As a result, oil is introduced into the introduction holes 1d, 1d,..., And as the pressure increases, the valve body 7b of the valve body 7 is deformed due to its flexibility to form a gap between the valve body 7 and the closing plate of the case 1. From there, the oil flows into the entire inside of the case 1, passes through a large number of through-holes through the pleated filter material 4, flows into the cylindrical body 3 a, and further passes through the mounting pipe 1 c and protrudes from the bracket. Is delivered to the inlet pipe. Then, the introduced oil is introduced into the internal combustion engine, and the used oil is delivered from the delivery hole as described above, and an oil circulation circuit including an oil body and an oil treatment filter is formed. The same is repeated thereafter. When the filter medium 4 is clogged, the relief valve 6,
The 6 'valve plate 6d moves against the resilience of the spring 6c, and the oil that flows in through the valve plate 6d penetrates through the frame 6a and flows into the cylindrical body 3a, and further passes through the mounting pipe 1c to be removed from the bracket. It is delivered to the projecting inlet tube.

When the cartridge type oil treatment filter shown in FIGS. 1 and 3 is used, the case 1 is cut and the case 1 is removed, and the leaf spring 5 and the relief valve 6, and the leaf spring 5 'and the relief In the case of FIG. 1, the filter body 2 can be automatically separated from the filter body 2 by simply pulling the valve body 7 ′ and the valve body 7 can be removed from the filter body 2. Thereby, the filter body 2 becomes a single body. The part obtained by cutting the case 1, the one in which the leaf spring and the relief valve are integrated, is collected as a metal material, and the filter body is incinerated, but the removed gasket 1f
When the valve body 7 is made of rubber, it may be incinerated together with the filter body.

In the above, as a constituent member of the case 1, a non-combustible material such as a metal material such as steel can be used, but aluminum or its alloy material can also be used in terms of lightness and durability. The filter 2 may be any filter that can be held and fixed to the case by a spring member, such as one in which both ends of pleats of a pleated filter material such as pleated filter paper wound around the cylindrical body are fixed by plates. . The cylindrical body of the support member 3 is at least one of paper impregnated or not impregnated with resin and mixed paper, that is, only paper impregnated or not impregnated with resin, only mixed paper impregnated or not impregnated with resin, or these A sheet body having a large number of through-holes is wound around a composite obtained by combining each of the papers and each of the mixed papers, and both ends of the sheet body are fastened. At that time, the mixed paper is prepared by mixing 50 to 85 parts by weight of pulp material and 20 to 60 parts by weight of synthetic fibers, more preferably 60 to 80 parts by weight of pulp material,
The synthetic fibers are mixed at a ratio of 20 to 40 parts by weight. As the synthetic fiber, in the case of an oil filter for automobiles, the temperature of the oil is as high as 80 to 100 ° C., and therefore, a fiber made of a material such as a polyester resin or a polyamide resin having heat resistance and oil resistance to withstand the oil temperature. Is preferred.
The amount of the resin impregnated is preferably 50 to 150 parts by weight, more preferably 80 to 120 parts by weight, of the curable resin of 10 to 200 parts by weight per 100 parts by weight of the mixed paper. After impregnating the resin, the sheet body having a large number of through-holes may be formed into a cylindrical body, and the resin may be cured. However, the impregnation of the resin, the curing thereof, the formation of a large number of through-holes, and the cylindrical shape of the sheet body The steps of embodiment are not limited to this, and may be performed in any order as appropriate. Examples of the type of the resin include a thermosetting resin and a moisture-curable resin, and specific examples include at least one of a phenol resin, an epoxy resin, a melamine resin, and a silicone resin.

In order to maintain the strength at which the cylindrical body of the support does not deform under the lateral pressure, the thickness of the paper and the mixed paper is preferably at least 200 g / m ² (at least approximately 1 mm thick). In order to fasten both ends of the sheet body, both ends may be overlapped and fastened, but each end may be fastened separately, and the means of fastening is also ultrasonic fusion (attaching ultrasonic waves). It is preferable to irradiate the portion and fuse it by the heat) from the viewpoint of productivity. However, other heat fusion means may be used, or it may be fixed by a mechanical means such as an adhesive or a tack. In addition, "using papermaking material" means resin,
This indicates that a backing material such as a nonwoven fabric or a cloth may be used, for example, by bonding with an adhesive. In addition, "the filter body is integrally formed of combustible material" means that a fastener such as a metal stud is not a combustible material, but is a minute part when viewed as a whole. , But "the combustible material" may be "a material that leaves little residue by combustion", and the "incombustible material" may be a "material that leaves a residue by combustion". As described above, when the support member 3 is manufactured, it can be manufactured by using the same process as that for manufacturing the filter paper and by slightly changing the specifications (thickness, etc.), so that special equipment and complicated processes are required. The cost can be reduced without providing. The plates 3a and 3b are made of at least one of paper and nonwoven fabric, that is, only paper, only nonwoven fabric, or a composite of paper and nonwoven fabric, and the filter material 4 is at least one of filter paper and nonwoven fabric, that is, only filter paper, only nonwoven fabric, or filter paper. Although each of the members is made of a combustible material, the filter body 2 is also made of a combustible material. The nonwoven fabric may be not only cellulosic fiber but also synthetic fiber or a mixture thereof, and any of them is preferably a material which does not generate toxic gas when incinerated, but is not limited thereto.

[0015]

Next, embodiments of the present invention will be described. Example 1 Wood pulp 70 parts by weight, synthetic fiber (polyester) 30
The parts by weight were mixed using a normal papermaking method to produce a mixed paper (basis weight: 300 g / m ² ). The plate-shaped sheet body impregnated with the curable epoxy resin (300 g / m ² ) is provided with a large number of through holes having a diameter of 4 mm, and is punched by so-called punching. Joining by sonic fusion. Next, the impregnated resin is subjected to a thermosetting treatment to form a cylindrical body 3a having a large number of through-holes as shown in FIG.
m, fold filter paper with a height of 58 mm and a peak of 64)
The filter body 2 was produced by attaching plates 3a and 3b made of a nonwoven fabric to the ends of the filter material with an adhesive.
As shown in FIGS. 1 and 3, in a case 1 made of steel,
A cartridge-type oil treatment filter incorporating the filter body 2 was prepared, and its performance was evaluated (using an oil testing device for automobiles and a test method based on JIS D1611). As a result, the life of the obtained cartridge type oil treatment filter was 48 hours, and the filtration efficiency was 86%. After the test, the case 1 of the cartridge type oil treatment filter shown in FIG. 1 was cut and separated into a steel part, a rubber part (gasket 1f and valve element 7), and a filter element 2.
The steel portion was recovered and reused, and the rubber portion and the filter 2 were incinerated, but only a small amount of ash remained. Since the steel portion is recovered without being heated, it can be reused as a high-quality resource with a low degree of oxidation.

COMPARATIVE EXAMPLE 1 The same reference numerals as those in FIG. 1 indicate the same components. As shown in FIG. 4, a cylindrical body 13a made of steel punched metal is used.
A filter medium 14 made of pleated filter paper is wound around each of the plates, and a substantially donut-shaped steel plate 13b, 13
c, the filter body 12 in which the filter medium 14 is integrated into the support member 13 composed of the cylindrical body 13a and the plates 13a and 13b is accommodated in the case 1, and the frame 16a of the relief valve 16 inserted into the cylindrical body 13a To the plate 13c
The valve plate 16d, which is integrally connected to the spring 16c by the flange plate 16b and abuts against the valve seat 16e formed by the inner peripheral edge of the plate 13c, thus integrating the filter body 12 and the relief valve 16, Using this, a leaf spring 15 having a central bottom plate 15a and a through tube 15b and other members were used in the same manner as in FIGS. 1 and 3 to produce a cartridge type oil treatment filter sandwiched in the case 1, and the same test as above was performed. However, the life of the filter was 49 hours, and the filtration efficiency was 85%, which was almost the same as in the case of Example 1.
However, after completion of the test, the case 1 was cut, and the cut portion of the case 1 and the leaf spring 15, the rubber portion (gasket 1f and the valve element 7), the filter body 2 and the relief valve were integrated and separated. When incinerated, the filter paper and adhesive burned, but the cylinder 13a, the relief valve 16, and the parts of the plates 13b and 13c made of steel remained, and the steel was highly oxidized and required quality for reuse. It can be considered that this has caused a problem similar to that occurring in the case of the conventional cartridge type oil treatment filter.

[0017] The relief valve has a frame which is provided inside the cylindrical body having an opening for the valve which communicates with the opening on the other end of the cylindrical body of the supporting member and which is permeable to oil. A valve body which accommodates a spring in the frame body and has a valve body facing the valve opening at the end thereof, and the spring member communicates with the opening for joining an end of the frame body on the valve opening side. The through hole is formed smaller than the opening, the peripheral plate portion of the through hole is a valve seat that abuts the valve body, the plate body is The oil treatment filter according to the above (2), wherein the filter is in contact with the support member or is further depressed into the inside of the tubular body together with the contact, thereby closing the opening of the tubular body. " In the above-described invention including the above, “cut the case of the (used) oil treatment filter. The filter body is separated from the case, and the integral body of the spring member and the relief valve, and the filter body is made of a combustible material and incinerated. The integral body of the spring member and the relief valve and the case are made of a metal material. And a method of treating a (used) oil treatment filter to be collected and used.

[0018]

According to the present invention, the case and the holding member are made of an incombustible material, and the filter is integrally made of a combustible material, and the filter is separate from the case and the holding member. Since it is configured and provided so as to be separable, the non-combustible portion and the flammable portion of a filter device such as an oil treatment filter can be easily separated, and the separation can be easily performed. Many wastes can be easily treated, so they do not require land for landfills, are easy to incinerate, and leave no residue other than ash to protect the environment and resources. Protection can be achieved. In addition, since the cylindrical body of the support member of the filter body is obtained by winding a sheet body having a large number of through holes using a papermaking material and fastening both ends, demetalization, which was conventionally difficult, can be performed. , Enables the filter body to be significantly demetallized together with other parts that are easier to convert into paper.
It is possible to provide a filter device such as an oil treatment filter that can reduce the manufacturing cost from both materials.

[Brief description of the drawings]

FIG. 1 is a sectional view of an oil treatment filter according to one embodiment of the present invention.

FIG. 2 is a partial sectional view of a filter of the oil treatment filter.

FIG. 3 is a sectional view of an oil treatment filter according to another embodiment of the present invention.

FIG. 4 is a cross-sectional view of a conventional oil processing filter.

[Brief description of reference numerals]

 DESCRIPTION OF SYMBOLS 1 Case 2, 12 Filter body 3, 13 Support member 4, 14 Filter medium 5, 5 ', 15 Leaf spring 6, 6', 16 Relief valve

Claims (5)

[Claims] 1. A filter device for introducing a fluid, performing a filtration treatment, and delivering the treated fluid, wherein the filter device has an inlet for introducing the fluid and an outlet for delivering the treated fluid, A support member having a tubular body having both ends open and having a through-hole, a filter member on a peripheral side of the tubular body, an opening on one end side of the tubular body communicating with the outlet, and an outside of the filter member A filter provided in the case so as to allow the inlet to communicate with the filter, and a holding device for holding the filter in the case, wherein the case and the holding member are made of non-combustible material. Along with this, the filter body is integrally formed of a combustible material, and the filter body is provided separately from the case and the holding member so as to be separable,
Further, a filter device obtained by winding a sheet having a large number of through-holes using a papermaking material and fixing both ends of the tubular body of the support member of the filter. 2. An oil processing system for connecting and using an oil constituting one of the oil circulating circuits and for connecting the oil circulating circuit provided with an oil using body for delivering the used oil. In the filter, a case having a delivery port and a delivery port on one end side respectively communicating with an introduction section for introducing oil and a delivery section for delivering oil of the oil using body main body, and a tubular body having both ends open having a through hole. A supporting member having a filtering material on a peripheral side of the tubular body, an opening at one end side of the tubular body communicating with the outlet, and the case communicating with the introduction port outside the filtering material. And a filter body provided in the inside of the other end of the case so as to press at least one end of the cylindrical body of the support member inside the one end of the case. Through the oil provided in the Existing spring member, a valve seat provided at the other end side opening of the cylindrical body, a valve body, and a relief valve having a spring for pressing the valve body against the valve seat, and oil is introduced from the introduction port. The filter is introduced, passes through the through-hole through the filter medium, is sent out from the one end side opening side of the cylindrical body to the delivery port, and when the filter medium reaches a predetermined pressure due to clogging, the relief is performed. An oil treatment filter for operating a valve to introduce oil into the cylindrical body from the other end opening side and to deliver the oil from the one end side opening side to the delivery port, wherein the spring member and the relief valve are incombustible. The filter body is integrally formed of a combustible material, and the filter body is integrally formed of a combustible material, and the filter body and the integrated member of the spring member and the relief valve are formed separately and provided so as to be separable. Oil treatment filter And the filter device tubular body of the support member of the filter element is an oil processing filter obtained hold the winding end portions of the sheet having a plurality of through holes using the paper making material. 3. A relief valve having a frame body provided with an opening for a valve communicating with an opening on the other end side of the cylindrical body, the oil body being permeable to oil provided in the cylindrical body. A valve body facing the valve opening is provided at the end thereof, and the valve opening is provided between at least one or both of a spring member and an end of the frame on the valve opening side. The other end side opening of the support member is formed by at least one of the spring member and a flange plate formed at the valve opening of the frame body, the valve seat having a through hole communicating with the valve body. Is closed except at least a portion corresponding to the through-hole, and the frame and the spring member are integrally formed at least in a part facing each other, and the valve body is resilient to the spring by a predetermined oil pressure. To move in the frame 3. The filter device according to claim 2, wherein oil is introduced from the frame into the cylindrical body. 4. The filter device according to claim 1, wherein the papermaking material is at least one of paper impregnated or not impregnated with a resin and mixed paper. 5. The mixed paper impregnated with resin is made of pulp material 90.
The filter device according to any one of claims 1 to 4, wherein the filter device is composed of 30 to 30 parts by weight, 10 to 70 parts by weight of synthetic fibers, and 10 to 200 parts by weight of a curable resin as an impregnating resin.