JP2571105Y2 - Horseshoe oil cooler for motorcycles - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a plurality of first plates in which a pair of first plates having a horseshoe shape when viewed in plan are combined to form a flow passage through which oil flows.
A first heat exchanger group consisting of a heat exchange unit and a pair of second plates that also have a horseshoe shape when viewed in a plan view are combined with each other to form a flow passage through which oil flows. The present invention relates to a horseshoe-shaped oil cooler for a motorcycle including a second heat exchanger group including a plurality of second heat exchange units.

[0002]

2. Description of the Related Art A plate, which is a component of a horseshoe-shaped heat exchanger, generally has a horseshoe shape when viewed in plan, as shown in FIG. The inside of the first plate 40 is depressed, and a pair of through-holes 4
1 and 42 are formed, and both ends are dripped in a cup shape to form a header 43. The first plates 40, 40 thus configured face each other, and their peripheral edges are joined by, for example, brazing. Thereby, a flow path through which oil flows between the first plates 40, 40 is formed. As shown in FIG. 5C, the first plates 40, 4 are provided between the through holes 41 and 42 of the flow path formed by the first plates 40, 40.
The partition plate 44 is interposed by the zero bending so that the high-temperature oil before heat exchange and the low-temperature heat exchanged oil do not mix. A plurality of such first heat exchange units D, D,... Are formed.

On the other hand, the second play 45 is not shown in a plan view, but is externally the same as the first plate 40, and has no through holes 41 and 42 formed therein. Then, the second plates 45, 45 are also opposed to each other and their peripheral edges are joined by brazing, so that the second heat exchange unit E
Is formed. A plurality of second heat exchange units E, E,... Are also prepared. The first and second plates 40, 4
A plurality of circular dimples 50, 50,... Are formed on one surface of the concave side of 5,. The first heat exchange units D, D,... Configured as described above.
, The collars 47, 47, ... are interposed in the through holes 41, 42, and the second heat exchange units E, E, ... are laminated and integrated as they are as shown in Fig. 5A. A horseshoe-shaped heat exchanger including the first and second heat exchanger groups a and b is formed.

Therefore, when high-temperature oil, for example, is supplied from the supply port 48, in the first heat exchanger group a,
Flow from the collars 47, 47,. And it reaches the 2nd heat exchanger group b. In the second heat exchanger group b,
From the header 43 toward the other header 43, it flows in a substantially semicircular arc portion, and returns to the first heat exchanger group a again. In the first heat exchanger group a, the flow from the header 43 to the collars 47, 47,. When the air flows between the heat exchange units D, E,... While the oil is flowing, the oil is cooled.

[0005]

Since the above-mentioned heat exchanger is also provided with the partition plate 40, the high-temperature oil to be heat-exchanged and the low-temperature oil to be heat-exchanged are mixed in the flow path. Heat is exchanged without any problem, and there is no particular problem in using it as a heat exchanger. However, since the partition plate must be interposed by bending the plate, the number of parts increases, and the assembling process takes a corresponding amount of time, resulting in an increase in cost. Further, there is also a disadvantage that the weight is surely increased only by the partition plate 44. In particular, weight is a problem for an oil cooler for a motorcycle that requires light weight. SUMMARY OF THE INVENTION An object of the present invention is to provide an oil cooler which solves the above-mentioned drawbacks or problems, that is, an oil cooler which can be manufactured at low cost and inexpensively and which is lightweight for a motorcycle.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a first pair of first and second horseshoes in plan view.
And a first heat exchanger group including a plurality of first heat exchange units in which a flow path through which oil flows is formed. A second heat exchanger group comprising a plurality of second heat exchange units, in which a pair of second plates presented are combined and a flow path through which oil flows is formed inside the pair of second plates. A horseshoe-shaped oil cooler, wherein a supply center through-hole and a return center through-hole are provided in close proximity to substantially the center of the first plate, and one end thereof is associated with the supply center through-hole. The collecting side through hole is formed at the other end with a supply side through hole associated with the return center through hole, and the first plate is provided at one end of the second plate with the first side hole. A supply side through-hole communicating with the collection side through-hole of the plate is provided at the other end. A collection side through-hole communicating with the supply side through-hole of the first plate is formed, a plurality of dimples are formed in the first plate, and the supply center through-hole and the return center through-hole are formed. The holes are fluidly isolated from each other by a blocking dimple, one of the plurality of dimples, which is provided across the first plate, whereby the first plate has a plurality of holes. The oil supplied to the supply center through-hole flows in the first heat exchanger group toward the collection side through-hole in the first heat exchange unit, and then flows into the second heat exchanger group. And flows in the second heat exchanger unit from the supply side through hole to the collection side through hole in the second heat exchanger group, and then flows into the first heat exchanger group. To the first heat exchange unit again. Configured inner to flow towards the center hole back from the supply side through hole.

[0007]

The present invention is mounted on a motorcycle, and a supply center through-hole and a return center through-hole are piped in relation to the engine. The relatively hot oil supplied from the engine to the supply central through-hole of the first plate flows through the first heat exchange unit in the first group of heat exchangers toward the collection side through-hole, Then the second
Flows in the second heat exchanger group from the supply side through hole to the collection side through hole in the second heat exchanger group, and then flows into the first heat exchanger. It returns again to the group and flows through the first heat exchange unit from the supply side aperture to the center aperture. While the hot oil flows in this manner, it is cooled by the air flowing between the first and second heat exchange units. Then, the fuel is discharged from the return center through hole toward the engine.

[0008]

Embodiments of the present invention will be described below. As shown in FIG. 1, a horseshoe-shaped oil cooler for a motorcycle according to the present embodiment generally includes a first heat exchanger group X including a plurality of first heat exchange units A, A,. , And a second heat exchanger group Y similarly composed of a plurality of second heat exchange units B, B,....

The first plate 1 constituting the first heat exchange unit A has a horseshoe shape when viewed in plan, as shown in FIG. The first plate 1 has an inner portion that is recessed except for a peripheral flange portion 2. A pair of supply center through-holes 3 and a return center through-hole 4 are provided at a substantially central portion of the depressed portion at predetermined intervals, and a collection side through-hole 5 is provided at one end.
At the other end, supply side through holes 5a are respectively formed. On one surface of the depressed portion, as shown in FIG. The dimples 6, 6, ... 7 are formed.

The dimple 7 is also formed between the supply center through hole 3 and the return center through hole 4. That is, the first
Is cut across the first plate 1 so as to cross the first plate 1. These dimples 6, 6,
The height of..., 7 is substantially equal to the height of the flange 2 as shown in FIGS. in this way,
Since the inner portion of the first plate 1 is depressed except for the surrounding flange portion 2, when the first plates 1 and 1 are opposed to each other and the flange portion 2 is joined by, for example, brazing, the first plate 1 Thus, an oil flow path is formed between the two. At the same time, the supply center through-hole 3 and the return center through-hole 4 are blocked or partitioned by the blocking dimple 7. The oil flow path is formed in a zigzag shape by a plurality of circular dimples 6, 6,.

The second plate 10 constituting the second heat exchange unit B has the same shape as the first plate 1 as shown in FIG. 3
There is no return center through hole 4 and no blocking dimple 7. In other respects, it is the same as the first plate 1, so that similar members are given the same reference numerals and will not be described repeatedly.

The central supply hole 3 and the central return hole 4 of the first plate 1 have central collars 11, 11,..., And the collection side through hole 5 of the first plate 1 and the central supply hole 5. A side collar 1 is provided in the side through hole 5a and the supply side through hole 5b and the collection side through hole 5c of the second plate 10.
Are applied, but the specific configuration of these collars 11, 11,..., 12, 12,... Is not shown in FIGS. These colors 11, 11,
, 12, 12, ... have a predetermined length that regulates the interval between the first and second heat exchange units A, B, ... at the time of assembly, and have through holes 3, 4 and 5, 5a, 5
Small diameter portions that fit in b and 5c are formed. Therefore, the small-diameter portion is divided into the first and second heat exchange units A, A,.
When fitting into the through holes 3, 4 and 5, 5a, 5b, 5c of B,..., The openings at the ends of the center collars 11, 11,. , B, B,... Formed in the flow path of the first and second heat exchange units A, A,.

Next, the first and second plates 1, 10, the center collars 11, 11,... And the side collars 12, 12,.
Will be described. Hereinafter, the assembly will be described as having an order for the sake of convenience, but it is clear that there is no relation to the assembly order. The first plates 1 and 1 face each other and the flanges 2 and 2 are joined by, for example, brazing,
The first heat exchange unit A is formed. Then, an oil flow path is formed between the first plates 1 and 1, and at the same time, the flow path becomes zigzag by the depletions 6, 6,. At this time, the flow path between the supply center through hole 3 and the return center through hole 4 is blocked by the blocking dimple 7. A plurality of such first heat exchange units A are prepared.

The second plates 10, 10 are also opposed to each other, and the flange portions 2, 2 are joined by, for example, brazing.
Is formed. Then, an oil flow path is similarly formed between the second plates 10 and 10. At the same time, the channels become zigzag due to the dimples 6, 6,. Similarly, a plurality of second heat exchange units B thus formed are prepared.

The central collars 11, 1 are arranged between the plurality of first heat exchange units A, A,.
, And the side collars 12, 12,..., And between the second heat exchange units B, B,.
12, the small diameter portions of which are through holes 3, 4, 5, 5a, 5b,
5c are interposed and laminated so as to be fitted. Also,
An oil supply pipe 15 and an oil discharge pipe 16 are attached to the supply center through-hole 3 and the return center through-hole 4 of the first heat exchange unit A located at the end. Thereby, a horseshoe-shaped oil cooler for a motorcycle including the first heat exchanger group X and the second heat exchange group Y is formed. The state assembled in this way is shown in FIG. 1A, and schematically shown in FIG. In this embodiment, as shown in FIG. 1A, the first and second heat exchange units A,
Corrugated fins 17, 1 between A, ..., B, B, ...
7,... Are provided. Also, as shown in FIG. 1 (b), the first and second heat exchange units A and B located at both ends among the first and second heat exchange units A and B.
No plates or end plates 13 and 14 have side through holes.

The oil cooler configured as described above is mounted on a motorcycle. Then, the oil supply pipe 15 and the oil discharge pipe 16 are connected to the engine in a known manner. The oil supplied from the oil supply pipe 15 toward the central collars 11, 11,... Is supplied to the first heat exchange group X by the central collars 11, 11,. Are distributed to the flow paths of the first heat exchange units A, A,. Since the flow paths of the first heat exchange units A, A,... Are blocked by the blocking dimples 7, 7,.
The oil flows through the first heat exchange units A, A,... Toward one of the side collars 12, 12,. , Through the side collars 12, 12,..., Reach the side collars 12, 12,... Of the second heat exchanger group Y, and each second heat exchange unit B, B,... The distributed oil flows through the arc-shaped flow path toward the other side collars 12, 12,.... Next, it is returned to the first heat exchange group X, and the inside of the first heat exchange units A, A,.
Flows toward the center collars 11, 11,.... And
Return from the exhaust pipe 16 to the engine. Such an oil flow is indicated by arrows in FIG. While the hot oil flows in this manner, air flows between the first and second heat exchange units A, A,..., B, B,.

According to this embodiment, various effects can be obtained.
For example, since the supply center through-hole 3 and the return center through-hole 4 are blocked by the blocking dimple 7, they are inexpensive and lightweight as compared with the case where a partition plate is used. Further, the first and second plates 1, 1,..., 10, 10,.
Are formed, the oil flows zigzag in the flow path, and a corrugate is provided between the first and second heat exchange units A, A,..., B, B,. Since the fins 17, 17,... Are provided, the heat exchange rate is high. Furthermore, since the center and side collars 11, 11,..., 12, 12,.
It is also advantageous in strength. In particular, according to the present embodiment, the dimples 6, 6, 6,... And the interrupting dimple 7 are in contact with each other between the first and second plates 1, 1,. large. Therefore, it is suitable as an oil cooler for motorcycles that is inexpensive, lightweight, and strong.

[0018]

As described above, in the horseshoe oil cooler for a motorcycle according to the present invention, a pair of first plates having a horseshoe shape when viewed in plan are combined with each other to form a flow passage through which oil flows. A first heat exchanger group consisting of a plurality of first heat exchange units, and a pair of second plates having a horseshoe shape in a plan view,
And a second heat exchanger group including a plurality of second heat exchange units in which a flow path through which oil flows is formed, that is, the whole is configured in a horseshoe shape. Therefore, an effect of being easily mounted on a motorcycle can be obtained. In addition, a supply center through hole and a return center through hole are provided in close proximity to a substantially central portion of the first plate, and a collection side through hole related to the supply center through hole is provided at one end. , The other end is formed with a supply side through hole associated with the return center through hole, while one end of the second plate is provided with a first side through hole.
A supply side through-hole communicating with the collection side through-hole of the first plate, and a collection side through-hole communicating with the supply side through-hole of the first plate at the other end; A plurality of dimples are formed in the plate, and a supply central through-hole and a return central through-hole are provided such that one of the plurality of dimples is provided to cross the first plate. Supplied to the supply central through-hole of the first plate, the oil is supplied to the first heat exchange unit in the first heat exchanger group, and the oil is supplied to the collection side through hole. It flows toward the through holes, and then flows toward the second group of heat exchangers, and within the second group of heat exchangers, from the supply side through hole to the collection side through hole in the second heat exchange unit. To the first group of heat exchangers again, and Flowing in the heat exchange unit towards the center hole back from the supply side through hole. In this way, the supply center through hole and the return center through hole are blocked,
Despite being compact, the oil flow path is long, and high-temperature oil is sufficiently cooled and discharged. Moreover, according to the present invention, the supply center through hole and the return center through hole of the first plate are provided so as to cross one of the plurality of dimples and the first plate. Since they are fluidly blocked from each other by the blocking dimples, there is no special need for a partitioning member as in the prior art. That is, since the dimple for increasing the strength also serves as a blocking member, the number of parts is small, so that the assembling work is also easy, and a horseshoe oil cooler for a motorcycle can be obtained at low cost. In addition, since the number of parts is small, it is lightweight. Therefore, the oil cooler is also optimal as an oil cooler for motorcycles requiring light weight.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of the present invention, wherein (a) is a front view and (b) is a bottom view.

FIGS. 2A and 2B are views showing an embodiment of a first plate, wherein FIG. 2A is a front view thereof, and FIGS.
It is sectional drawing cut | disconnected by b and ha.

FIG. 3 is a front view showing an embodiment of a second plate.

FIG. 4 is a perspective view schematically showing an assembled state of one embodiment of the present invention.

FIG. 5 is a diagram showing an example of a prior art of the present invention;
Is a front view thereof, and (b) and (c) are cross-sectional views taken along arrows (ro) and (ha) in (a).

[Explanation of symbols]

1 First plate 3
Supply center through hole 4 Return center through hole 5, 5c
Side through hole for collection 5a, 5b Side through hole for supply 6
Dimple 7 Dimple 10 for blocking
2nd plate A 1st heat exchange unit B 2nd heat exchange unit X 1st heat exchanger group Y 2nd heat exchanger group

Claims (1)

(57) [Scope of request for utility model registration] 1. A plurality of first heat exchangers, in which a pair of first plates (1, 1) each having a horseshoe shape when viewed in plan are combined to form a flow path through which oil flows. A first heat exchanger group (X) composed of exchange units (A, A,...) And a pair of second plates (10, 10), which also have a horseshoe shape when viewed in a plan view, are fitted together. A plurality of second passages in which a flow passage through which oil flows is formed.
And a second heat exchanger group (Y) comprising the heat exchange units (B, B,...) Of the first and second plates (1 and 1). The supply center through hole (3) and the return center through hole (4)
At one end there is a collecting side through-hole (5) associated with the supply center through-hole (3) and at the other end there is a supply side through-hole associated with the return center through-hole (4). A hole (5a) is formed, and at one end of the second plate (10, 10),
A supply side through hole (5b) communicating with the collection side through hole (5) of the first plate (1, 1) is provided at the other end with the supply of the first plate (1, 1). , A collecting side through hole (5c) communicating with the collecting side through hole (5a), and a plurality of dimples (6, 6,..., 7) are formed in the first plate (1, 1). , The supply center through-hole (3) and the return center through-hole (4) are provided in one of the plurality of dimples (6, 6,..., 7). , 1), which are fluidly isolated from one another by a blocking dimple (7), which is provided so as to traverse the supply center through-hole (3) of said first plate (1, 1). The supplied oil is supplied to a first heat exchange unit (A, A) in the first heat exchanger group (X).
A,...) Flows toward the collecting side through-holes (5), then flows toward the second heat exchanger group (Y), and flows through the second heat exchanger group (Y). , Flows from the supply side through-hole (5b) to the collection side through-hole (5c), and then flows into the first heat exchanger group (X). , And flows through the first heat exchange unit (A, A,...) From the supply side through hole (5a) toward the center through hole (4). For horseshoe oil cooler.