JPH07324613A - Oil filter integrated type oil cooler - Google Patents

Abstract

PURPOSE:To provide an oil filter integrated type oil cooler whose installability onto a vehicle engine compartment and vibrationproofness can be improved by decreasing its total height. CONSTITUTION:An element case 2 is installed on an engine mounting block wall, wherein an oil cooler body 7 is integrated with an element container 9 for filter elements 3, by laminating a plurality of element housing holes formed on first to third bored flat boards 31-33 in the direction of board thickness. The element container 9 houses the filter element 3 comprising a filter material 71, an oil-nonpermeative material 72, and an iron core 73, and the filter elements 3 and the oil cooler bodies 7 are alternately arranged circumferentially in the element case 2. Replacement of the filter element 3 suffices for detaching the cap 6 of the element case 2 and replacing only the filter element 3, thus any waste and product cost may be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil filter for cleaning oil and an oil cooler integrated with an oil filter in which an oil cooler for cooling oil is contained in one element case.

[0002]

2. Description of the Related Art Conventionally, in an engine such as a gasoline engine or a small diesel engine, a water-cooled oil cooler is fixed to a wall surface of a mounting block at a tip portion of a center bolt, and the other end portion of the center bolt is fixed to a steel plate. A cartridge type oil filter accommodating a filter element is attached to a metal element case such as the above to cool the engine oil and remove the solid content generated in the engine oil. When the filter element needs to be replaced, the cartridge type oil filter is replaced with a new one.

However, in recent years, there has been an increasing demand for reduction of waste and reduction of product cost. Therefore, there is an increasing number of methods in which a metal element case is shared and only the filtration element is replaced with a new one. . Accordingly, conventionally, as shown in FIG. 30, the oil cooler main body 103 is installed inside the element case 101 at one end portion in the axial direction of the center bolt 102, and at the other end portion in the axial direction of the center bolt 102. Filter element 104 made of filter paper
There is known an oil cooler integrated with an oil filter (for example, Japanese Utility Model Laid-Open No. 1-91010).

In the conventional oil filter integrated oil cooler 100, the oil cooler main body 103 and the filtering element 104 are superposed on each other in the height direction of the element case 101, so that when the filtering element 104 is replaced, The cap 105 was removed and only the filtration element 104 was replaced with a new one.

[0005]

However, in the conventional oil cooler 100 with an integrated oil filter, as shown in FIG.
As shown in FIG. 0, since the oil cooler main body 103 and the filtering element 104 are superposed in the height direction of the element case 101, the overall height of the oil cooler 100 with an integrated oil filter becomes large, and the engine 1
The amount of protrusion of 06 from the wall surface of the mounting block 107 becomes large.

As a result, the occupancy rate of the vehicle in the engine room of the vehicle, where the installation space is very restricted, becomes large, which deteriorates the mountability of the oil cooler 100 with the oil filter integrated in the vehicle. there were.
Further, when the amount of protrusion of the engine 106 from the wall surface of the mounting block 107 becomes large, there is a problem that vibration resistance against vibration transmitted from a vibration source such as the engine 106 or a vehicle body is adversely affected.

An object of the present invention is to provide an oil cooler integrated with an oil filter that can be mounted on a vehicle or the like and have improved vibration resistance.

[0008]

According to a first aspect of the present invention, there is provided an oil cooler body for cooling oil by exchanging heat with cooling water, an element case forming an outer shell of the oil cooler body, and the element. The technical means is provided, which is detachable in the case, is provided on the same plane as the oil cooler body, and has a filtering element for filtering oil. Further, the invention according to claim 2 is the oil filter integrated oil cooler according to claim 1, wherein the oil cooler body employs a technical means in which the oil cooler body is superposed with the filtering element in a circumferential direction or a radial direction. .

According to a third aspect of the present invention, in the oil cooler integrated with the oil filter according to the first or second aspect, the oil cooler body has an annular outer wall portion forming the element case, and A plurality of members integrally formed so as to project to the inner peripheral side of the outer wall portion and defining an element housing hole through which oil passes and the filter element and a cooling water passage hole through which cooling water passes through the inside. A technical means is adopted in which a plurality of flat plate-like thin plates each having a partition section are laminated in the plate thickness direction of the flat plate-like thin plates. Further, in the invention according to claim 4, in the oil cooler integrated with the oil filter according to claim 3, the filter element has a plurality of fitting portions on the outer peripheral side, into which the plurality of partition portions are respectively fitted. The technical means that is provided and is alternately superposed with the plurality of compartments of the oil cooler main body in the circumferential direction is adopted.

[0010]

According to the present invention, since the oil cooler body and the filter element are provided on the same plane in the element case, the height of the element case, that is, the total height of the oil filter integrated oil cooler is shortened. It

[0011]

Next, an explanation will be given based on an embodiment in which the oil filter integrated oil cooler of the present invention is applied to an engine oil filter integrated oil cooler.

[Structure of First Embodiment] FIGS. 1 to 23 show a first embodiment of the present invention. FIG. 1 is a view showing an oil cooler integrated with an oil filter, and FIG. It is the whole systematic diagram showing the cooling system.

The oil cooling system 200 of this embodiment
Consists of an oil cooling circuit 201 and a cooling water circuit 202. The oil cooling circuit 201 supplies an oil supply passage 2 that supplies high temperature engine oil (hereinafter abbreviated as oil) whose temperature has risen by lubricating each lubricated portion of the engine E from the oil pan 203 to the oil filter integrated oil cooler 1.
04, an oil return passage 205 for returning low-temperature oil cooled by the oil cooler 1 with an oil filter to each lubricated portion of the engine E, and an oil pump (O / P) 206 for generating a circulating flow of oil. Consists of.

The cooling water circuit 202 is a cooling passage 2 for cooling the engine cooling water (hereinafter referred to as cooling water) heated in the water jacket of the engine E by the radiator 207.
08, a cooling water supply passage 209 for supplying the cooled cooling water to the oil filter integrated oil cooler 1, and a cooling water return for returning the cooling water that has cooled the oil in the oil filter integrated oil cooler 1 to the water pump. Flow path 210
And a water pump (W /
P) 211. Here, the engine E is composed of a gasoline engine, a diesel engine or the like mounted on a vehicle, and constitutes a vibration source of the oil cooler 1 with an integrated oil filter together with the vehicle body.

Next, the structure of the oil cooler 1 with an integrated oil filter will be described in detail with reference to FIGS. 1 and 3 to 21. The oil cooler 1 with an integrated oil filter of this embodiment is directly attached to the wall surface of the mounting block of the engine E, and has a cylindrical element case 2 integrally formed with a heat exchange portion for exchanging heat with the cooling water to cool the oil. The filter case 3 has a cylindrical filter element 3 which is detachably housed in the element case 2.

Next, the structure of the element case 2 of this embodiment will be described with reference to FIGS. 1 and 3 to 8. The element case 2 partitions the inside and the outside and constitutes the outer shell of the filtration element 3, and is composed of an upper bracket 4, a lower bracket 5, a cap 6, an oil cooler body 7, and the like.

As shown in FIGS. 3 and 4, the upper bracket 4 is made of a metal such as an aluminum alloy and is integrally molded in an annular shape. The upper bracket 4 has an annular shape for accommodating the O-ring 11. It has a fitting groove 12. The O-ring 11 is a seal member that prevents oil from leaking between the element case 2 and the cap 6. A female screw portion 13 for screwing with the cap 6 is formed on the inner periphery of the upper bracket 4.

As shown in FIGS. 5 and 6, the lower bracket 5 is made of, for example, a metal such as an aluminum alloy and is integrally molded in the shape of an annular plate to attach the element case 2 to the engine E. Is. An oil inlet hole 14 for allowing oil to flow from the engine E is formed in the upper end portion of the lower bracket 5 in the figure.
An iron core of the filter element 3 is inserted in the central portion of the lower bracket 5, and an oil outlet hole 15 for returning oil to the engine E is formed. The oil inlet hole 14 and the oil outlet hole 15 are partitioned by an 8-shaped partition wall 16 serving as partitioning means, and communicate with the oil supply passage 204 and the oil return passage 205 of the oil cooling circuit 201, respectively. is doing. In addition,
A peripheral groove 15a for press-fitting the filter element 3 is formed in the oil outlet hole 15.

Further, the lower bracket 5 has a cooling water inlet groove 18 and a cooling water outlet groove 19 formed between the oil inlet hole 14 and the outer wall 17 forming the outer shell. The cooling water outlet groove 19 is formed in a projection 21 projecting downward from the bottom side surface of the lower bracket 5 and is provided with a cooling water outlet passage 22.
Is in communication with. The cooling water inlet groove 18 and the cooling water outlet groove 19 have an annular partition wall 2 as partition means.
It is divided by 3.

On the outer wall 17 of the lower bracket 5, there is provided a cooling water inlet pipe 24 such as an aluminum pipe for supplying the cooling water from the cooling water supply passage 209 of the cooling water circuit 202 into the cooling water inlet groove 18. It has been driven in. In addition, the cooling water in the cooling water outlet groove 19 is connected to the projection 21 of the lower bracket 5 through the cooling water outlet passage 22 and the cooling water circuit 202.
The cooling water outlet pipe 25 such as an aluminum pipe for returning to the cooling water return passage 210 is driven in.

As shown in FIG. 7 and FIG. 8, the cap 6 is a cover member which is made of metal such as aluminum alloy and is integrally molded in a disk shape to cover the opening portion of the element case 2 on the upper end side. is there. The cap 6 has the same outer diameter as the upper bracket 4, and the outer peripheral portion is the O-ring 11
It is formed so as to be in close contact with the outer peripheral portion of the upper bracket 4 via.

Further, a male screw portion 26 for screwing with the female screw portion 13 of the upper bracket 4 is formed on the outer periphery of the small diameter portion having a diameter smaller than the large diameter portion of the cap 6.
A hexagonal portion 27 as an engaging portion that engages with a tool (not shown) is formed at the center of the upper end surface of the cap 6 so as to project upward. In addition, a disc-shaped projection portion 28 is formed in the central portion of the lower end surface of the cap 6 so as to protrude downward as a pressing means for pressing the filter element 3 downward (on the lower bracket 5 side) in the figure. There is.

Next, the oil cooler body 7 will be described in detail with reference to FIGS. 1 and 9 to 13. In the oil cooler main body 7 of this embodiment, one lower end side perforated flat plate 30, a plurality of first to third perforated flat plates 31 to 33, and one upper end side perforated flat plate 34 are laminated in the plate thickness direction. As a result, a heat exchanging unit for exchanging heat between the cooling water and the oil to cool the oil is configured. In addition, a brazing filler metal is clad on the surfaces of the lower end side perforated flat plate 30, the plurality of first to third perforated flat plates 31 to 33, and one upper end side perforated flat plate 34, and the upper bracket 4 and the lower side. The brackets 5 are combined and integrated by joining means such as brazing in a vacuum furnace.

As shown in FIGS. 1 and 9, the perforated flat plate 30 on the lower end side is integrally formed with a metal plate such as an aluminum plate into a disc shape having a plate thickness of about 0.5 mm to 2.0 mm.
It is laminated on the lower bracket 5. The lower end side perforated flat plate 30 has an oil inlet hole 41 and an oil outlet hole 42 formed by punching at positions corresponding to the oil inlet hole 14 and the oil outlet hole 15 of the lower bracket 5. The oil inlet hole 41 and the oil outlet hole 42
Are formed in a circular shape having the same diameter, and the oil inlet hole 41 is formed in the radial direction of the oil outlet hole 42.

Then, the lower end side perforated flat plate 30 is punched at a position corresponding to the cooling water inlet groove 18 and the cooling water outlet groove 19 of the lower bracket 5 and has a substantially trapezoidal cooling water inlet hole 43 and a triangular shape. A plurality (7 in this example) of cooling water outlet holes 44 are drilled. The cooling water inlet hole 43 and the cooling water outlet hole 44 are the same as the oil outlet hole 42.
A cooling water outlet hole 44 and a cooling water inlet hole 43 are formed in this order in a radial pattern (radial direction). The lower end side perforated flat plate 30 has a cooling water inlet hole 43 and a cooling water outlet hole 44.
A partition wall 45 for partitioning and is also formed. Then, on the lower end side perforated flat plate 30, dozens of first perforated flat plates 31 and second perforated flat plates 32 are alternately laminated.

The first perforated flat plate 31 is the flat thin plate of the present invention, and is a metal plate such as an aluminum plate having a thickness of 0.5 mm to 2.0 mm as shown in FIGS. 1 and 10.
It is a 1st shaping | molding plate integrally molded by the disk shape of a grade. The first perforated flat plate 31 is formed with a disc-shaped metal plate or an annular disc-shaped metal plate by punching to form the element accommodation hole 50 having a predetermined shape. In addition, the first perforated flat plate 31 is punched at a position corresponding to the cooling water inlet hole 43 and the cooling water outlet hole 44 of the lower end side perforated flat plate 30, and is substantially trapezoidal shaped cooling water inlet hole 51 and triangular cooling. Multiple water outlet holes 52 (7 in this example)
Each) is perforated.

Then, on the outer periphery of the first perforated flat plate 31,
An annular outer wall 53 that forms the element case 2 is formed. The outer wall 53 is an outer wall portion of the present invention, and is a plurality (7 in this example) that divides the element housing hole 50 and the cooling water passage hole (cooling water inlet hole 51 and cooling water outlet hole 52). The partition wall 54 is formed so as to project from the inner periphery toward the center. The partition wall 54
Is a partition of the present invention, and also has a partition wall 54a for partitioning the cooling water inlet hole 51 and the cooling water outlet hole 52.

The second perforated flat plate 32 is the flat thin plate of the present invention. As shown in FIGS. 1 and 11, the second perforated flat plate 32 is a metal plate such as an aluminum plate having a plate thickness of 0.5 mm to 2.0 mm.
It is a 2nd shaping | molding plate integrally molded by the disk shape of a grade. The second perforated plate 32 is the first perforated plate 31.
The element accommodation hole 55 is formed in the same manner as.
The second perforated flat plate 32 is provided with a cooling water inlet hole 56 and a cooling water outlet hole 57 in the same manner as the first perforated flat plate 31.

Then, on the outer periphery of the second perforated flat plate 32,
An annular outer wall 58 that forms the element case 2 is formed. The outer wall 58 is an outer wall portion of the present invention, and is a plurality (7 in this example) that divides the element housing hole 55 and the cooling water passage hole (the cooling water inlet hole 56 and the cooling water outlet hole 57). The partition wall 59 is formed so as to project from the inner periphery toward the center.

Incidentally, the first and second perforated flat plates 31, 32
Have substantially the same shape, but the width B1 of the partition wall 54 of the first perforated flat plate 31 is, for example, about 0.5 mm to 1.0 mm compared with the width B2 of the partition wall 59 of the second perforated flat plate 32. Is formed so as to be increased in width dimension. Also, the partition wall 5
The partition 9 of the present invention also has a partition wall 59a for partitioning the cooling water inlet hole 56 and the cooling water outlet hole 57.

Further, in this embodiment, the lower end side perforated flat plate 3
By stacking 0, 1st, and 2nd perforated flat plates 31, 32 in the plate thickness direction, the cooling water inlet holes 43, 51, 56 communicate with each other, and a plurality of (7 in this example) cooling water is provided. An inlet passage 8a is formed and each cooling water outlet hole 44, 5 is formed.
2 and 57 communicate with each other (7 in this example)
The cooling water outlet passage 8b is formed.

The third perforated flat plate 33 is the flat thin plate of the present invention, and as shown in FIGS. 1 and 12, is a metal plate such as an aluminum plate having a plate thickness of 0.5 mm to 2.0 mm.
It is a third molding plate integrally molded into a disc shape of a certain degree. The third perforated flat plate 33 is laminated on the first and second perforated flat plates 31 and 32 which are alternately laminated, and several tens of them are laminated.
Are formed. The third perforated flat plate 33 has cooling water passage holes 61 formed at positions corresponding to the cooling water inlet holes 51, 56 and the cooling water outlet holes 52, 57.

Then, on the outer periphery of the third perforated plate 33,
An annular outer wall 63 that forms the element case 2 is formed. The outer wall 63 is an outer wall portion of the present invention, and a plurality (7 in this example) of partition walls 64 partitioning the element accommodating hole 60 and the cooling water passage hole 61 are directed from the inner circumference toward the center. Are formed so as to project. The partition wall 64, which is the partition of the present invention, does not have a partition wall that separates the cooling water inlet hole and the cooling water outlet hole.

The upper end side perforated flat plate 34 is shown in FIGS.
As shown in FIG. 5, for example, a metal plate such as an aluminum plate is integrally formed into a disk shape having a plate thickness of about 0.5 mm to 2.0 mm, and is laminated on the third perforated flat plate 33 having several dozen laminated plates. ing. This upper end side perforated plate 34 is the first perforated plate 3
As in the case of 1, a plurality of elements (in this example, 7) are formed so as to project from the inner circumference of the element housing hole 65 and the annular outer wall 66 forming the element case 2 toward the center.
Each of them is provided with a triangular closing wall 67.

The closing wall 67 does not have a cooling water inlet hole and a cooling water outlet hole, and functions to close the cooling water passage hole 61 of the third perforated flat plate 33. In addition, a plurality of third
Cooling water passage hole 61 of the perforated flat plate 33 and the upper perforated flat plate 3
The closing wall 67 of No. 4 constitutes the cooling water reversing section 8c. Then, in this embodiment, the first to third perforated flat plates 31 to 3 are formed.
By stacking a plurality of 3 and one upper end side perforated flat plates 34 in the plate thickness direction, each element accommodation hole 50, 55, 6
The element storage portion 9 that stores the filtration element 3 is formed by the communication of 0 and 65.

Next, the filter element 3 of this embodiment will be described in detail with reference to FIGS. 14 to 18. The filter element 3 is a filter body that removes foreign matters, abrasion powder, carbon, etc. mixed in oil, and prevents wear and seizure of each lubricated portion of the engine E and contributes to ensuring reliability of the engine E. There is. The filter element 3 is composed of a filter material 71 that allows oil to pass therethrough, an oil impermeable material 72 that does not allow oil to pass therethrough, and an iron core 73 that constitutes the shaft member of the oil cooler 1 with integrated oil filter. ing.

The filter material 71 is made of a filter paper or a non-woven fabric that captures trapped particles having a size of about 5 to 20 microns, and is folded into a cylindrical shape so that a plurality of folds are formed to obtain a predetermined filtration area. Is formed in. This filter material 71
Has a plurality of (eight in this example) substantially V-shaped fitting grooves 74, and partition walls 54, 59, 64 of the oil cooler body 7 in the same circumferential direction with the iron core 73 as the center. And the closing wall 67
Are alternately stacked.

The plurality of fitting grooves 74 are fitting portions of the present invention, and are element receiving holes for the plurality of first to third perforated flat plates 31 to 33 and one upper end side perforated flat plate 34. 5
It is fitted in 0, 55, 60 and 65. That is, the plurality of fitting grooves 74 are formed in the first to third perforated flat plates 31.
~ 33 and the partition wall 5 adjacent to the upper end side perforated flat plate 34
It is fitted between 4, 59, 64 and the closing wall 67. Then, the plurality of fitting grooves 74 are formed in the partition walls 54, 6 respectively.
4 and the blocking wall 67, an oil flow path 75 (see FIG. 20) is formed to contact the partition wall 59. In addition, the filter material 71
The upper and lower ends of the iron core 7 are open, and the inner periphery of the filter medium 71 is
3 is in contact with the outer peripheral surface.

The oil-impermeable material 72 is made of an oil-resistant resin that is incapable of permeating oil, and is attached to the outer peripheral portion and the upper and lower ends of the filter material 71 by a joining means such as an adhesive. The oil impermeable material 72 includes a plurality of fan-shaped lid wall portions 76 (8 in this example) that close the openings at the upper and lower ends of the filter material 71.
77, and a plurality (eight in this example) of arc-shaped side wall portions 78 formed so as to hold the outer peripheral portion of the filter material 71 and open for each of the plurality of fitting grooves 74. The plurality of side wall portions 78 are arranged between the first to third perforated flat plates 31 to 33 and the outer peripheral walls 53, 58, 63, 66 of the upper end side perforated flat plate 34 and the inner peripheral surfaces of the oil passages 79 (Fig. 20) is formed.

The iron core 73 is a hollow cylindrical body, has an oil return passage 80 extending vertically in the inside thereof, and has a large number of circular communication holes 81 for communicating the inside and the outside in the vertical direction. It is formed in the circumferential direction. This iron core 73
Is an abutting portion 82 with which the inner peripheral portion of the filter material 71 abuts on the outer periphery, and lid wall portions 76 and 77 of the oil impermeable material 72 on the upper and lower end portions.
Are formed to hold the flange portions 83 and 84. The opening portion of the flange portion 83 on the upper end side of the iron core 73 is closed by the disc-shaped projection portion 28 of the cap 6, so that the oil flowing into the oil cooler body 7 does not pass through the filter medium 71. The entry into the return passage 80 is prevented. Further, the lower end side of the iron core 73 is press-fitted into the circumferential groove 15 a of the oil outlet hole 15 of the lower bracket 5.

[Operation of the First Embodiment] Next, the operation of the oil filter integrated oil cooler 1 of this embodiment will be briefly described with reference to FIGS. 1 and 19 to 21. here,
FIG. 19 is a diagram showing the flow of cooling water and oil in the oil filter-integrated oil cooler 1, and FIGS. 20 and 21 are diagrams showing the oil flow in the main part of the oil filter-integrated oil cooler 1. .

The low-temperature cooling water cooled in the radiator 207 is cooled by the cooling water supply passage 209 and the cooling water inlet pipe 24.
Through, and flows into the cooling water inlet groove 18 of the lower bracket 5. Then, as shown in FIG. 20, the low-temperature cooling water has a plurality of cooling water inlet passages 8 a in the cooling water inlet groove 18.
And flows into the plurality of cooling water outlet passages 8b from the plurality of cooling water inlet passages 8a through the cooling water reversing portion 8c.

The cooling water exchanges heat with the oil while passing through the cooling water inlet passage 8a, the cooling water reversing portion 8c and the cooling water outlet passage 8b to cool the oil. In this way, the high-temperature cooling water that has deprived the heat of the oil is collected in the cooling water outlet groove 19 of the lower bracket 5, and the cooling water outlet passage 2
2. Through the cooling water outlet pipe 25, the oil is discharged to the outside of the oil filter integrated oil cooler 1.

The oil pan 20 is driven by the oil pump 206.
The oil pumped from the engine 3 passes through the oil supply passage 204 of the engine E and the oil inlet hole 1 of the lower bracket 5
It flows into 4. The oil flowing into the oil inlet hole 14 reaches below the element housing portion 9 of the oil cooler body 7.

Here, an oil impermeable material 72 for preventing oil from permeating the outer peripheral portion and the upper and lower end portions of the filter element 3.
Is pasted. Therefore, FIG. 20 and FIG.
As shown in FIG. 5, the oil flow path 79 formed on the outer peripheral portion of the filter element 3 is surrounded and formed by the width difference between the partition walls 54 and 59 of the first and second perforated flat plates 31 and 32. The filter medium 71 permeates through the thin oil passage 75.
The oil is cooled by heat exchange with cooling water before it penetrates the filter material 71.

The clean oil filtered by the filter material 71 gathers in the oil return passage 80 of the iron core 73 from the inner peripheral portion of the filter material 71 through a large number of communication holes 81, and the oil outlet hole 15 of the lower bracket 5 It is sent to the lubricated portion of the engine E through the oil return passage 205.

[Replacement Method of First Embodiment] Next, a replacement method of the filter element 3 of this embodiment will be described with reference to FIGS. 22 and 23.
A brief description will be given based on. Here, FIG. 22 and FIG.
3 is a diagram sequentially showing a replacement process of the filter element 3.

In the oil cooler integrated with the oil filter 1 of this embodiment, only the filter element 3 is replaced when the oil filter is replaced. First, as shown in FIG. 22 (A), a tool (not shown) is attached to the hexagonal portion 2 of the cap 6.
The cap 6 is loosened from the upper bracket 4 and removed by engaging with 7 and turning. Next, as shown in FIG. 22 (B), the dirty filter element 3 is pulled out from the opening portion on the upper end side of the element case 2 and taken out.

Next, a new filtration element 3 is installed in FIG.
As shown in (A), the lower end of the iron core 71 is fitted into the circumferential groove 15a of the oil outlet hole 15 of the lower bracket 5 so as to fit therein. At this time, the O-ring 11 is used for a long time,
In particular, the heat of the oil sags, so that the O-ring 11 may be replaced when the filtering element 3 is replaced, as shown in FIG. Next, as shown in FIG.
By fitting the cap 6 to the upper end side of the element case 2 and screwing the female screw portion 13 of the upper bracket 4 and the male screw portion 26 of the cap 6 and tightening them with a tool, the filtration element 3 can be easily replaced. Over.

[Effects of the First Embodiment] As described above, the oil cooler 1 with the integrated oil filter includes the center bolt 1
The height of the element case 2, that is, the total height of the oil filter-integrated oil cooler 1 is dramatically reduced as compared with the conventional technique in which the oil cooler body 103 and the filtration element 104 are superposed in the axial direction of 02. Therefore, the installation space can be small, and the mountability in the engine room of the vehicle can be improved. Further, vibration is transmitted from the vibration source such as the engine E or the vehicle body to the oil filter-integrated oil cooler 1, but since the overall height of the oil filter-integrated oil cooler 1 is low, vibration resistance against vibration can be improved.

The element case 2 is used not only as a container for the filter element 3 but also as the oil cooler body 7
By also using it as a case, the number of parts and the number of assembling steps can be reduced, so that the product cost can be reduced. Further, when exchanging the oil filter, only the filtration element 3 needs to be exchanged, so that it is possible to reduce waste and product cost.

[Second Embodiment] FIG. 24 shows a second embodiment of the present invention and is a view showing a state in which an oil cooler integrated with an oil filter is attached to an engine. In this embodiment, the shape of the lower bracket 5 is changed so that the stacking direction of the perforated flat plates of the oil cooler body 7 is parallel to the surface direction of the standing wall surface of the mounting block 221 of the engine E. ing.

In this embodiment, the gasket 222
Install the engine side bracket 223 through the mounting bolt 22
It is fixed using a tightening tool such as 4. The engine-side bracket 223 has a plurality of insertion holes 225 through which the mounting bolts 224 are inserted.

[Third Embodiment] FIGS. 25 to 27 show a third embodiment of the present invention and are views showing a filter element. The filter element 3 of this embodiment has handles 85, 8 on the lid wall portion 76 of the oil impermeable agent 72.
6 is provided. As a result, the filter element 3 can be easily pulled out of the element case 2 when the filter element 3 is replaced, and the replacement operation can be performed quickly.

[Fourth Embodiment] FIGS. 28 and 29 show a fourth embodiment of the present invention. FIG. 28 shows an oil cooler with an integrated oil filter, and FIG. 29 shows a filter element. It is a figure. In this embodiment, a coil spring 87 is provided in the central portion of the lower end surface of the cap 6 as a pressing means for pressing the filter element 3 downward in the drawing. Thereby, even if there is an error between the accommodation height He of the iron core 73 of the element case 2 and the total height of the filtration element 3, the filtration element 3 can be assembled without wobbling in the element case 2. .

A circular plate 88 made of resin, which serves as a holding portion for the coil spring 87, is attached to the opening of the flange 83 on the upper end side of the iron core 73 of the filter element 3. Therefore, the oil flowing into the oil cooler body 7 does not pass through the filter medium 71 and the oil return flow path 8
It is possible to prevent intrusion into 0.

[Modification] In this embodiment, the filter element 3 and the oil cooler body 7 are arranged alternately in the same circumferential direction in the element case 2, but the filter element 3 and the oil cooler body 7 are arranged. And may be arranged so as to overlap each other in the radial direction within the element case 2. Further, the filtering element 3 may be arranged in one half of the element case 2 in the circumferential direction, and the oil cooler body 7 may be arranged in the other half.

In this embodiment, the first and second perforated flat plates 3
Although 1 and 32 were laminated alternately, the first and second perforated flat plates 3
A fin plate for improving heat exchange efficiency may be arranged between the first and the second plates.

In this embodiment, the present invention is applied to the oil filter integrated oil cooler 1 for cooling the engine oil by exchanging heat between the engine oil and the cooling water. However, the present invention is applicable to torque converter oil, mission oil, etc. Transmission fluid, hydraulic oil such as power steering oil and brake oil, lubricating oil such as differential gear oil,
Alternatively, it may be applied to the oil filter integrated oil cooler 1 that cools oil by exchanging heat between oil such as fuel and cooling water.

Although the element case 2 is formed in a cylindrical shape in this embodiment, the element case 2 may be formed in a polygonal cylinder shape such as a quadrangular cylinder shape, an elliptic cylinder shape, or an oblong cylinder shape. Further, the shapes of the lower end side perforated flat plate 30, the first to third perforated flat plates 31 to 33, and the upper end side perforated flat plate 34 are not limited to the disc shape and the annular disc shape, and a polygonal shape such as a square shape, It may be freely changed to an elliptical shape, an oval shape, or the like. Furthermore, the element case 2 and the oil cooler body 7 may be configured as separate parts. In this case,
The shape of the oil cooler body 7 is not limited to one formed by laminating a plurality of thin flat plates, and a fin-and-tube heat exchanger may be used.

[0061]

According to the present invention, the overall height of the oil cooler integrated with the oil filter can be shortened, so that the mountability on a vehicle or the like can be improved and the vibration resistance against the vibration transmitted from the vibration source can be improved. You can

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention.

FIG. 2 is an overall system diagram showing an oil cooling system using the first embodiment of the present invention.

FIG. 3 is a plan view showing an upper bracket used in the first embodiment of the present invention.

4 is a cross-sectional view showing the upper bracket of FIG.

FIG. 5 is a plan view showing a lower bracket used in the first embodiment of the present invention.

6A is a cross-sectional view taken along the line AA of FIG. 5, and FIG.
5B is a sectional view taken along line BB in FIG.

FIG. 7 is a plan view showing a cap used in the first embodiment of the present invention.

8 is a cross-sectional view showing the cap of FIG.

FIG. 9 is a plan view showing a lower end side perforated flat plate used in the first embodiment of the present invention.

FIG. 10 is a plan view showing a first perforated plate used in the first embodiment of the present invention.

FIG. 11 is a plan view showing a second perforated plate used in the first embodiment of the present invention.

FIG. 12 is a plan view showing a third perforated plate used in the first embodiment of the present invention.

FIG. 13 is a plan view showing an upper end side perforated flat plate used in the first embodiment of the present invention.

FIG. 14 is a perspective view showing a filter element used in the first embodiment of the present invention.

15 is a plan view showing the filter element of FIG. 14. FIG.

16 is a sectional view taken along line DD of FIG.

17A is a sectional view taken along line EE in FIG. 16, and FIG. 17B is an enlarged view thereof.

FIG. 18 is a bottom view showing the filter element of FIG. 14.

FIG. 19 is a cross-sectional view showing the flows of cooling water and oil according to the first embodiment of the present invention.

FIG. 20 is a cross-sectional view showing the flow of oil in the I-I cross section of FIG. 1.

FIG. 21 is a perspective view of FIG. 20.

22 (A) and 22 (B) are schematic views showing a method of exchanging the filter element according to the first embodiment of the present invention.

23 (A) to 23 (C) are schematic views showing a method of exchanging the filter element according to the first embodiment of the present invention.

FIG. 24 is a schematic view showing a state in which a second embodiment of the present invention is attached to an engine.

FIG. 25 is a plan view showing a filter element used in the third embodiment of the present invention.

FIG. 26 is a sectional view showing a filter element used in the third embodiment of the present invention.

FIG. 27 is a perspective view showing a main part of a filtration element used in a third embodiment of the present invention.

FIG. 28 is a sectional view showing a fourth embodiment of the present invention.

FIG. 29 is a perspective view showing a filter element used in a fourth embodiment of the present invention.

FIG. 30 is a sectional view showing a conventional technique.

[Explanation of symbols]

 E Engine 1 Oil filter integrated oil cooler 2 Element case 3 Filtration element 4 Upper bracket 5 Lower bracket 6 Cap 7 Oil cooler body 31 First perforated flat plate (flat plate) 32 Second perforated flat plate (flat plate) 33 Third Perforated Flat Plate (Flat Plate Thin Plate) 50 Element Housing Hole 51 Cooling Water Inlet Hole (Cooling Water Passage Hole) 52 Cooling Water Outlet Hole (Cooling Water Passage Hole) 53 Outer Wall (Outer Wall) 54 Partition Wall (Partition Section) ) 55 element accommodating hole 56 cooling water inlet hole (cooling water passage hole) 57 cooling water outlet hole (cooling water passage hole) 58 outer wall (outer wall portion) 59 partition wall (dividing portion) 60 element accommodating hole 61 cooling water passage hole 63 Outer Wall (Outer Wall) 64 Partition Wall (Partition) 71 Filter Material 72 Oil Impermeable Material 73 Iron Core 74 Fitting Groove (Fitting Part)

Claims (4)

[Claims] 1. An (a) oil cooler main body that cools oil by exchanging heat with cooling water, (b) an element case forming an outer shell of the oil cooler main body, and (c) detachable inside the element case. An oil cooler integrated with an oil filter, which is free and is provided on the same plane as the oil cooler body and has a filtering element for filtering oil. 2. The oil cooler with integrated oil filter according to claim 1, wherein the oil cooler body is superposed with the filtering element in a circumferential direction or a radial direction. . 3. The oil filter integrated oil cooler according to claim 1 or 2, wherein the oil cooler body projects to an annular outer wall portion forming the element case, and an inner peripheral side of the outer wall portion. A flat thin plate having a plurality of partition portions that are integrally molded so as to partition the oil through which the oil passes, and the cooling water passage hole through which the cooling water passes through the filtering element. An oil cooler integrated with an oil filter is characterized in that a plurality of the flat thin plates are laminated in the plate thickness direction. 4. The oil filter-integrated oil cooler according to claim 3, wherein the filtering element has a plurality of fitting portions on the outer peripheral side into which the plurality of partition portions are fitted, respectively, and is arranged in a circumferential direction. An oil cooler integrated with an oil filter, wherein the oil cooler main body is alternately superposed with a plurality of compartments of the oil cooler body.