KR100834910B1 - Oil filter - Google Patents

Abstract

An object of the present invention is to provide an oil filter capable of efficiently removing foreign matters such as carbon, sludge, metal powder, etc. and extending the maintenance time.

In the filter main body 1, an oil passage 27 for imparting centrifugal force to the introduced oil, a collection pocket 29 for collecting foreign matter having a large specific gravity scattered outside by centrifugal force, and the oil passage 27 It is provided with the magnetic filter 35 which can remove the metal powder arrange | positioned downstream.

Filter body, oil, collection pocket, magnetic filter, body

Description

Oil Filter {OIL FILTER}

1 is a cross-sectional view of an oil filter to which the present invention is applied.

2 is an end view of an oil filter;

3 is a cross-sectional view taken along line A-A of FIG.

4 is a perspective view of the wing member.

5 is a sectional view of an oil filter of another embodiment.

6 is an end view of the oil filter;

FIG. 7 is a cross-sectional view taken along the line A-A of FIG. 5; FIG.

8 is a sectional view of an oil filter of another embodiment.

<Description of the symbols for the main parts of the drawings>

1: filter body

3: body

5: holder

7: cap

9: base

13: oil outlet

15: oil inlet

21: partition member

23: wing member

27: with oil

29: collection pocket

35 magnetic filter

[Document 1] Japanese Unexamined Patent Publication No. 11-77479

The present invention relates to an oil filter having a magnetic filter.

In the automotive field, the machine manufacturing field, the machining field, the machine tool field, the ship field, etc., oil is used for lubrication, and this oil is circulated and used.

Therefore, an oil filter is provided and the oil is filtered in the middle of a circulation circuit. Generally, this oil filter removes carbon from incomplete combustion such as an engine, varnish or sludge from high temperature oxidation, metal powder such as worn engine, and the like and plays a role of supplying clean oil to the engine and the like.

Conventionally, what employ | adopted the magnetic filter which removes the substance mainly containing metal powder efficiently (refer patent document 1) is proposed.

[Patent Document 1] Japanese Patent Application Laid-Open No. 11-77479

However, in the conventional magnetic filter, metal powder is adsorbed to the filter material made of excited metal fibers, and the adsorption removal efficiency is excellent. However, carbon produced in a combustion chamber such as an engine cannot be removed by the magnetic filter. Therefore, this carbon is eventually synthesized with other oxides to produce harmful sludge, and a filter material for removing the sludge is required, and the blockage of the filter material eventually leads to unavoidable early maintenance of the filter. There is.

Accordingly, an object of the present invention is to provide an oil filter capable of effectively removing foreign matters such as carbon, sludge, metal powder, etc., and prolonging a maintenance time by eliminating the problems of the prior art described above.

In order to achieve the above object, the present invention, in the filter main body, the oil passage to impart the centrifugal force to the introduced oil, the collection pocket for collecting the foreign matter having a large specific gravity scattered to the outside by the centrifugal force, and downstream of the oil passage A magnetic filter capable of removing the disposed metal powder is integrally provided.

In this case, an oil outlet is provided on the end face of the filter main body, an oil inlet is provided on the end face so as to surround the oil outlet, and the oil inlet is formed on the outer circumferential side in the filter body in communication with the oil inlet. The magnetic filter may be provided on the inner circumferential side of the oil furnace.

In addition, in the filter main body, the oil pocket which guides the oil which flowed in from the one end toward the other end, and the collection pocket which collects the foreign material isolate | separated by the collision by colliding the oil guide | induced arrange | positioned at the other end to this oil And the magnetic filter which can remove the metal powder arrange | positioned downstream of the said oil path may be integrally provided.

In these inventions, when oil flows into the filter main body, centrifugal force is first applied to the oil passing through the oil passage, and foreign matters such as carbon and sludge having a relatively high specific gravity contained in the oil are scattered to the outside by centrifugal force to collect the pocket. Is collected. The oil having the high specific gravity foreign matter removed reaches a magnetic filter disposed downstream to the oil, where metal powder is removed and then flows out of the filter body.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described with reference to an accompanying drawing.

1 is a cross-sectional view of a filter.

Reference numeral 1 denotes a filter main body, and the filter main body 1 is a substantially cylindrical metal body 3 and a metal holder 5 concentrically arranged with the body 3 inside the body 3. ) Is configured. Female screws are formed on the inner circumferences of the both ends of the body 3, respectively, and one of the female screws on the right side of the body 3 is made of metal in a state in which one end portion 5A of the holder 5 is prevented and supported by the coil spring 6. Metal cap (end face of filter main body) 9 is screwed into the other female screw while supporting the other end 5B of the holder 5. . 10 and 11 are sealing members, and 12 are drain removal bolts.

The oil outlet 13 is formed in the substantially center part of the said base 9 as shown in FIG. 2, and the outer peripheral part of the base 9 is substantially equally spaced in the circumferential direction so that this oil outlet 13 may be enclosed. Eight oil inlets 15 are formed.

As shown in Fig. 1, the holder 5 has a substantially cylindrical shape with a stepped diameter of one end 5A side and a large diameter of the other end 5B side, and an oil outlet (inside). A discharge oil passage 14 communicating with 13 is formed. The one end part 5A side of this discharge oil passage 14 is closed.

An annular space K is formed between the outer circumference of the holder 5 and the inner circumference of the body 3. In this space K, a ring-shaped partition member 21 is provided so as to concentrically partition the space K (see Fig. 3), and the downstream between the partition member 21 and the outer circumference of the holder 5 is downstream. It is connected by the blocking member 22 which is erected upright by the wrapper. The body 3, the partition member 21, and the closure member 22 constitute the first cylindrical structure.

In addition, on the outer periphery of the partition member 21, as shown in FIG. 3, four wing members 23 whose cross section extends in substantially U shape are spaced at approximately equal intervals in the circumferential direction, for example, connected by spot welding. (Centrifugal debris separation unit). And these blade members 23 are provided by spirally bending in the axial direction of the filter main body 1, as shown in FIG. 4, These blade members 23 are both ends thereof, as shown in FIG. Is sandwiched between the cap 7 and the base 9.

In the above configuration, the oil inlet 15 communicates with the annular inlet oil passage 25, and the oil passage 25 is surrounded by the wing member 23 and the body 3 which are bent in a spiral manner. It communicates with an oil passage 27 extending spirally in the axial direction for imparting centrifugal force to the oil. As shown in Fig. 1, a cylindrical collecting pocket 29 made of stainless fiber is formed on the outer circumference of the oil passage 27, and the collecting pocket 29 flows into the oil passage 27. Among the foreign matters contained in the oil, a relatively large foreign matter scattered outside by centrifugal force is collected (separable filter). Foreign materials contained in oil generally include carbon from incomplete combustion such as engines, varnish or sludge from high temperature oxidation, metal powders such as worn engines, etc. do.

An annular return oil path 31 is formed downstream of the oil path 27, and downstream of the return oil path 31, the inner side of the partition member 21 is directed toward the axis center of the holder 5. An oil path 33 is formed which forms a flow. A magnetic filter 35 is disposed in this oil passage 33. The magnetic filter 35 is formed between three permanent magnets 37 sandwiched in the thin diameter portion 5A of the holder 5, and between each permanent magnet 37, and made of stainless fiber excited by the magnets. Filter material 39 is provided, and the metal powder contained in the oil passing therethrough is adsorbed and removed. The oil passage 33 on which the magnetic filter 35 is disposed communicates with the discharge oil passage 14 via a through hole 5C formed in the outer wall of the holder 5 and also communicates with the oil outlet 13. do. The partition member 21, the holder 5, and the closure member 22 constitute the second cylindrical structure.

Next, the operation will be described.

This filter is assembled in the circulation path of engine oil, for example. The oil enters the inlet oil path 25 from the oil inlet 15, as indicated by the solid arrow, and radially along the blocking member 22, which is erected upstream from the oil path 25 downstream. It is guided outward and enters the oil passage 27 extending spirally in the axial direction surrounded by the wing member 23 and the body 3. In this spirally extending oil passage 27, centrifugal force is imparted to the oil of high pressure which flows in by the shape, and among the foreign substances contained in the oil, foreign substances having a relatively high specific gravity are scattered to the outside by centrifugal force to collect pockets. It is collected in 29. According to this configuration, foreign matters such as carbon, which are relatively large in specific gravity, are removed in the first motion.

The oil via the oil passage 27 enters the annular return oil passage 31, where it reverses the orientation of the flow into the oil passage 33. In this oil furnace 33, the metal powder contained in the oil is adsorbed and removed by the function of the magnetic filter 35. That is, in this structure, the metal powder contained in oil is removed in a 2nd motion.

The oil passing through the magnetic filter 35 enters the discharge oil passage 14 through the through hole 5C of the holder 5 and flows out of the oil outlet 13.

According to the present embodiment, foreign matters such as carbon, which are relatively large in specific gravity, are removed in the first motion, and metal powder contained in the oil is removed in the second motion, so that foreign matters such as carbon, sludge, and metal powder are efficiently removed. It can remove, and can prolong the maintenance time of an oil filter significantly.

In addition, an oil outlet 13 is provided on the end face of the filter main body 1, and an oil inlet 15 is provided on the end face so as to surround the oil outlet 13, and the oil inlet 15 is connected to the oil outlet 15. The oil passage 27 is formed on the outer circumferential side in the filter main body 1 through the filter, and the magnetic filter 35 is provided on the inner circumferential side of the oil passage 27, and finally, the trap is collected in one filter main body 1. Since the collar 29 and the magnetic filter 35 are arranged concentrically, the filter can be miniaturized. In addition, in this apparatus, the collection pocket 29 and the filter material 39 are comprised of metal fiber, and can be used repeatedly, and there is no need for waste disposal.

In addition, the collection pocket 29 can be easily taken out in the axial direction of the filter main body 1 by removing the cap 7. Therefore, various effects, such as the maintenance of the collection pocket 29, can be performed easily, etc. are acquired.

5 to 7 show another embodiment.

This embodiment shows the oil filter for small passenger cars. The filter main body 51 is comprised with the metal body 53 and the metal holder 55 arrange | positioned concentrically with the said body 53 inside this body 53. It is comprised.

A female screw is formed on the inner circumference of the right end in the figure of the body 53, and the female screw is formed of a metal cap (with a holding member 56 in a state in which the end portion 55A of the holder 55 is prevented from vibration and supported). 57) is turned back. 60 and 61 are sealing members.

6, the oil outlet 63 is formed in the end surface of the left side of the said body 53, and the outer peripheral part of the said body 53 is circumferentially so that this oil outlet 63 may be enclosed. Eight oil inlets 65 are formed at approximately equal intervals. As shown in Fig. 5, the holder 55 has a substantially cylindrical shape, and an exhaust oil passage 64 communicating with an oil outlet 63 is formed inside the holder 55. One end portion 5A side is closed by the holding member 56.

An annular space K is formed between the outer circumference of the holder 55 and the inner circumference of the body 53, and an oil path 75 communicating with the oil inlet 65 is formed in the space K. At the end of the oil passage 75, a ring-shaped guide plate 77 is disposed. This guide plate 77 scatters the oil flowing in to the radially outer side, thereby giving a centrifugal force to the oil which flowed in. At the outermost circumference of the annular space K, a cylindrical collecting pocket 79 made of stainless fiber is formed, and the collecting pocket 79 has a centrifugal force among the foreign substances contained in the oil flowing into the oil passage 75. Relatively large foreign matters scattered outside are collected. Foreign materials contained in oil generally include carbon from incomplete combustion such as engines, varnish or sludge from high temperature oxidation, metal powders such as worn engines, etc. do.

An oil passage 81 is formed downstream of the oil passage 75, and a magnetic filter 85 is disposed downstream of the oil passage 81. This magnetic filter 85 is provided between a permanent magnet 87 sandwiched in a holder 55 and between each permanent magnet 87, and includes a filter material 89 made of stainless fiber excited from the magnet. The metal powder contained in the oil passing through this is adsorbed and removed. The oil passage 81 in which the magnetic filter 85 is disposed communicates with the discharge oil passage 64 via the through hole 55C formed in the outer wall of the holder 55 and communicates with the oil outlet 63. do.

Also in this configuration, foreign matters such as carbon, sludge, and metal powder, which are relatively large in specific gravity, for example, carbon are removed from the collection pocket 79, and metal powder contained in oil is removed from the magnetic filter 85. Can be removed efficiently and the maintenance time of an oil filter can be extended significantly.

8 shows another embodiment.

The filter described here is a filter suitable for a heavy truck etc., for example, and a basic structure is substantially the same as that of embodiment mentioned above.

Reference numeral 101 denotes a filter main body, and the filter main body 101 is formed of a substantially cylindrical cap-shaped metal body 103, and a metal holder arranged concentrically with the body 103 inside the body 103 ( 105).

The holder 105 has an outer sleeve 106 and an inner sleeve 107, of which a flange 108 is connected to an outer circumference of one end side 107A of the sleeve 107, and the flange 108 The outer circumference is coupled to the inner circumference of the outer sleeve 106.

In addition, the connecting member 109 is fitted to the inner circumference of the other end 107B of the inner sleeve 107, and the collecting pocket cover 110 is connected to the outer end of the connecting member 109, and the collecting pocket cover is connected. 110 is fastened to the connection member 109 via the nut 111. Reference numeral 112 is a reinforcing flange having an oil passage.

After the holder 105 and the main body 103 are arranged concentrically, they are integrally connected to, for example, the engine block 115 via one long bolt 113. Reference numerals 116 and 117 denote annular oil seals.

An annular space K is formed between the outer circumference of the outer sleeve 106 and the inner circumference of the body 103. An inlet 118 surrounded by the outer circumference of the outer sleeve 106 and the inner circumference of the collection pocket cover 110 is opened at the other end of the space K, and the innermost end of the inlet 118 is made of stainless fiber. Cylindrical collection pocket 129 is provided (impact foreign matter separation unit). An oil passage reaching the inlet 118 from the space K constitutes the inlet oil passage.

The engine block 115 is formed with an oil outlet 213 and an oil inlet 215. The oil which flowed in from this oil inlet 215 flows into space K, and collides with the collection pocket 129 made of stainless fiber via the inlet 118, and this collection pocket 129 is collided by a collision. Collect the separated foreign material. In the collection pocket 129, foreign matters having a relatively high specific gravity are collected among foreign matters contained in the introduced oil. Foreign materials contained in oil generally include carbon from incomplete combustion such as engines, varnish or sludge from high temperature oxidation, metal powders such as worn engines, etc. do.

An annular return oil path 131 is formed downstream of the collection pocket 129, and a magnetic filter 135 is disposed in the return oil path 131. The magnetic filter 135 is provided between the ring-shaped four permanent magnets 137 sandwiched on the outer circumference of the inner sleeve 107 and each of the permanent magnets 137, and the magnet 137 It is provided with a filter material made of stainless fiber 139 excited by, and the metal powder contained in the oil passing therethrough is adsorbed and removed. The oil passage 131 in which the magnetic filter 135 is disposed is connected to the discharge oil passage 214 inside the inner sleeve 107 via a plurality of through holes 107C formed in the outer wall of the inner sleeve 107. Communication with the oil furnace 213.

Next, the operation will be described. This filter is assembled in the circulation path of engine oil, for example. The oil enters the space K from the oil inlet 215 as indicated by the solid arrow, and impinges on the collection pocket 129 made of stainless fiber via the inlet 118, where foreign matter separated by the collision. Is collected. According to this configuration, foreign matters such as carbon, which are relatively large in specific gravity, are removed in the first motion.

The oil via the collection pocket 129 enters the annular return oil path 131, where the metal powder contained in the oil is adsorbed and removed by the function of the magnetic filter 135. That is, in this structure, the metal powder contained in oil is removed in a 2nd motion. The oil passing through the magnetic filter 135 enters the discharge oil passage 214 via the through hole 107C of the inner sleeve 107 and flows out of the oil outlet 213.

In the present embodiment, foreign matters such as carbon, which are relatively large in specific gravity, are removed in the first motion, and metal powder contained in oil is removed in the second motion, so that foreign matter such as carbon, sludge, and metal powder can be efficiently removed. It is possible to significantly extend the maintenance period of the oil filter. In this apparatus, the collection pocket 129 and the filter material 139 are made of metal fibers, so that they can be used repeatedly and there is no need for waste disposal. In addition, the collection pocket 129 can be easily taken out in the axial direction of the filter main body by removing the bolt 113. Therefore, various effects, such as being able to easily repair the collection pocket 129, are acquired.

As mentioned above, although this invention was demonstrated based on one Embodiment, this invention is not limited to this. For example, the oil path 27 mentioned above is not limited to a spiral or a guide plate as long as it is a shape capable of imparting centrifugal force to the oil introduced therein, and may be any shape. In addition, the magnetic filter 35 is not limited to the above structure.

In the above configuration, although described as an oil filter of an automobile engine, the present configuration is an oil filter which is not likely to cause boundary contamination in all fields that can be repeatedly reused as an oil filter of all internal combustion engines, or in the field of machine manufacturing. It can be used in fields such as machining and machine tool.

In the present invention, since the filter main body is provided with a collection pocket for collecting foreign matter having a large specific gravity scattered to the outside by centrifugal force, and a magnetic filter disposed downstream of the oil furnace, the specific gravity of carbon, sludge or the like is large. Foreign matter and foreign matter can be removed in two stages of motion. Therefore, foreign matters such as carbon, sludge, and metal powder can be removed efficiently, and the maintenance time can be extended.

In addition, since the collecting pocket and the magnetic filter are collectively disposed in one filter main body, the filter can be miniaturized.

Claims (13)

An oil passage formed in the filter body so as to impart centrifugal force to the introduced oil, A collecting pocket made of a cylindrical metal fiber disposed on the outer periphery of the oil passage and collecting foreign matter having a large specific gravity scattered to the outside by centrifugal force; An oil filter, characterized in that it is integrally provided with a magnetic filter capable of removing the metal powder disposed downstream of the oil passage. The oil outlet of claim 1, further comprising an oil outlet at an end face of the filter body, an oil inlet at the end face to surround the oil outlet, and in communication with the oil inlet. An oil filter is formed, and the magnetic filter is provided on the inner circumferential side of the oil furnace. Into the filter main body, the oil introduced from one end to the other end to guide oil, A collecting pocket made of a cylindrical metal fiber which collides the induced oil disposed at the other end of the oil and collects foreign matter separated by the collision; An oil filter, characterized in that it is integrally provided with a magnetic filter capable of removing the metal powder disposed downstream of the oil passage. The oil filter according to claim 1, wherein the oil passage includes a plurality of wing members arranged spirally along the flow direction of the oil. The oil filter according to claim 1, wherein the oil is provided with a guide plate that imparts centrifugal force to foreign matter in the oil by colliding with the oil introduced therein near the inlet of the oil. The said filter main body is a double structure by which the said 1st cylindrical structure provided with the oil path and the collection pocket which the said oil distribute | circulates, and the 2nd cylindrical structure provided with the said magnetic filter are integrally comprised. Has a cylindrical structure, The second cylindrical structure is disposed concentrically with respect to the first cylindrical structure within the first cylindrical structure, characterized in that the oil flowing in the first cylindrical structure flows into the second cylindrical structure. Oil filter. The oil filter according to claim 6, wherein the collection pocket is provided on the inner circumferential side of the first cylindrical structure so as to be detachable from the filter main body. 4. The filter according to claim 1 or 3, wherein the magnetic filter extends in a predetermined direction and is arranged at predetermined intervals in the filter direction through which the oil flows, and in the predetermined direction. A metal excited between the permanent magnets arranged to surround the permanent magnets on the outer circumferential side of the filter element and configured to pass the oil introduced through the collection pocket to guide the oil into the filter element. An oil filter, comprising a fibrous filter. 9. The filter element according to claim 8, wherein the filter element comprises a hollow cylindrical body and a plurality of openings provided in the periphery of the cylindrical body and for guiding the oil flowing through the metal fiber filter into the cylindrical body. Oil filter, characterized in that there is. 10. The oil filter according to claim 9, wherein the plurality of openings are provided in the cylindrical bone peripheral portion so as to face the metal fiber filter. delete delete delete

Images