JP2001153586A - Oil cooler-containing radiator tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radiator tank capable of easily mounting an oil cooler. SOLUTION: A plurality of protrusions 6 are partly protruded and formed in space apart at the inner surface side of the bottom of a tank body 2. The upper surface of the protrusion 6 is formed so that the axis of its boss 4 is matched to that of the hole 1 of the body 2 when the oil cooler 3 is placed on the upper surface of the protrusion 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a vehicle radiator having a built-in oil cooler,
The present invention relates to a device capable of easily performing the assembling work.

[0002]

2. Description of the Related Art An oil cooler for an automatic transmission is inserted into a lower tank body of a radiator, and then a peripheral portion of a tube plate is liquid-tightly fitted to an upper end opening of the tank body. The oil cooler is provided with bosses for connecting oil pipes at both ends on one side thereof. A pair of holes were formed in the middle part of the side wall of the tank body, and the boss of the oil cooler was aligned with each hole and penetrated.

[0003]

The operation of assembling an oil cooler having a relatively large capacity into the lower tank of the radiator is troublesome. Particularly, in the case of a multi-plate oil cooler, when the number of elements is large and the gap between the oil cooler and the tank body is small, the assembling workability is poor and there is a disadvantage that a lot of working time is required. . Therefore, an object of the present invention is to provide a radiator tank in which an oil cooler can be easily assembled.

[0004]

According to the present invention, there is provided a tank body having a shape of an elongated box having an open end, and a pair of holes which are spaced apart from each other and have a pair of holes penetrating through one side wall thereof. And a tube plate 5 having an opening closed at one end of the tank body 2 after the oil cooler 3 is inserted into the tank body 2. A plurality of oil cooler supporting projections 6 spaced apart from each other on the inner surface side of the
When the oil cooler 3 is placed on the upper surface of the convex portion 6, the axis of the oil pipe connecting boss portion 4 protruding at both ends of the convex portion 6 is defined by the hole. A radiator tank with a built-in oil cooler, which is formed so as to be aligned with one axis and has a movable mounting surface capable of moving the oil cooler 3 parallel to the hole 1 from the mounted state.

According to a second aspect of the present invention, in the first aspect, a pair of the protrusions 6 are provided on the bottom surface at the axial position of the pair of holes 1 and / or slightly outside the tank body 2 in the longitudinal direction. Are provided integrally, and each convex portion 6 is provided.
In addition, a rising guide portion 6a is formed integrally with the opening side, and a pair of the rising guide portions 6 that are separated in the longitudinal direction.
This is a radiator tank with a built-in oil cooler formed so that the distance between “a” matches the length of the oil cooler 3.
According to a third aspect of the present invention, in the first or second aspect, the inner side edge of the hole 1 is a tapered surface 1a which expands inward, and the boss portion of the oil cooler 3 fitted into the hole. 4 is a radiator tank with a built-in oil cooler having a tapered or rounded guide surface 6b formed at the leading edge of the rising guide portion 6a.

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partially cutaway perspective view of a radiator tank with a built-in oil cooler of the present invention, FIG. 2 is a sectional view showing a first step of assembling, FIG. 3 is a sectional view showing a second step, and FIG. FIG. 5 is a sectional view taken along the line V-V in FIG. 4. The radiator tank in which the oil cooler 3 is stored has a tank body 2 and a tube plate 5, and is located below the radiator. As shown in FIG. 1, the tank main body 2 is formed in an elongated box shape having an open upper end, and a small flange portion for mounting a tube plate is formed on an edge portion thereof. A pair of holes 1 penetrate through one of the side walls at a distance from each other, and a pipe portion 7 is integrally formed on the side wall.

Further, a pair of projections 6 are integrally formed on the inner surface of the bottom so as to be separated from each other. In this example, the tank body 2 itself is made of a synthetic resin molded body, and the convex portion 6 is formed integrally during the molding. The projections 6 are formed in a pair of L shapes below the axial position of the hole 1 so that the rising guide portions 6a protrude upward. The distance between the rising guide portions 6a that are separated in the longitudinal direction matches the length of the oil cooler 3. A guide surface 6b is formed at the upper end edge of the rising guide portion 6a in an R-shaped cross section.

Next, the oil cooler 3 provided inside the tank body 2 is of a multi-plate type in this example, and a plurality of elements 11 are liquid-tight through respective communication holes via ring-shaped spacers 12. It is fixed by brazing. The element
In FIG. 11, as shown in FIG. 5, a pair of dish-shaped metal plates are overlapped in the opposite direction to form a flat flow path inside, and communication holes are formed at both ends in the longitudinal direction. The inner fin 13 is inserted into the flat flow path, and the flange of the boss 4 is brazed and fixed to the communication hole of the element 11 at one end in the stacking direction. Boss part 4 with its flange
Is formed in a hollow bolt shape, an O-ring 9 fitting groove is provided in a flange portion thereof, the hollow bolt portion is formed in a stepped manner, and a tapered surface 4a is provided in the stepped portion.
Further, a tapered surface 1a is formed at the inner edge of the hole 1 of the tank body 2 on the inner surface side.

Both ends of the oil cooler 3 in the longitudinal direction are guided by the guide surface 6b of the tank body 2 and the rising guide portion 6a, and mounted on the convex portion 6. In the mounted state, the axis of the boss 4 of the oil cooler 3 and the axis of the hole 1 of the tank body 2 are aligned. Therefore, the oil cooler 3 is moved parallel to the hole 1 from the state of FIG. 2 to the state of FIG. At this time, the tapered surface 4 a of the boss 4 is guided by the tapered surface 1 a of the hole 1, and the boss 4 is easily fitted into the hole 1. Then
As shown in FIG. 5, a nut 15 and an oil pipe 16 are screwed and fastened to the outer thread portion 10 of the boss portion 4. An O-ring 9 is fitted to the flange of the boss 4 in advance. Then, as shown in FIG. 3, in this example, a tube plate 5 in which a large number of flat tubes 8 are penetrated and fixed is fastened to the opening of the tank body 2 via an O-ring, and the edges thereof are caulked. The two are fastened and fixed in a liquid-tight manner.

[0010]

The radiator tank with a built-in oil cooler according to the first aspect of the present invention is provided on the inner side of the bottom of the tank body 2.
A plurality of oil cooler supporting projections 6 are provided apart from each other. When the oil cooler 3 is mounted thereon, the convex portion is formed so that the axis of the boss portion 4 and the axis of the hole 1 are aligned with each other. The cooler 3 is formed so that it can move in parallel. Therefore, the oil cooler 3 is connected to the tank body 2
Work can be quickly performed. In addition, since the convex portion 6 is partially protruded from the bottom of the tank body 2, the cooling water can be smoothly circulated to each portion of each element 11 of the oil cooler 3. That is, the protrusion 6
Does not substantially hinder the cooling effect of the oil cooler 3.

According to the second aspect of the present invention, since the rising guide portion 6a is formed integrally with the convex portion 6, the oil cooler 3 can be more easily inserted into the tank body 2. . According to the third aspect of the present invention, since the tapered surface 1a is provided on the inner surface side edge of the hole 1 and the tapered surface 4a is formed on the boss portion 4, the operation of mounting the oil cooler 3 on the tank body 2 is performed. Becomes easier. Further, since the guide surface 6b is formed on the rising guide portion 6a, the oil cooler 3 can be more easily inserted into the tank body 2.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a radiator tank with a built-in oil cooler of the present invention.

FIG. 2 is a longitudinal sectional view showing a first step of assembling an oil cooler to a tank body.

FIG. 3 is a sectional view showing a second step.

FIG. 4 is an overall front view of the tank showing a state after the assembly.

FIG. 5 is a sectional view taken along line VV of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 hole 1a Tapered surface 2 Tank body 3 Oil cooler 4 Boss part 4a Tapered surface 5 Tube plate 6 Convex part 6a Start-up guide part 6b Guide surface 7 Pipe part 8 Tube 9 O-ring 10 External thread part 11 Element 12 Spacer 13 Inner fin 14 Fin 15 Nut 16 Oil pipe

Claims (3)

[Claims] 1. A tank body 2 formed in an elongated box shape having one end opened, a pair of holes 1 penetrating from one side wall and being separated from each other, and an oil cooler 3 inserted into the tank body 2. And a tube plate 5 having an opening closed at one end of the tank body 2. The oil cooler built-in radiator tank comprises: The upper part of the convex part 6 is provided with the oil cooler 3
Is mounted so that the axis of the oil pipe connecting boss 4 projecting from both ends thereof is aligned with the axis of the hole 1, and the oil is moved from the mounted state to the hole 1 side. A radiator tank with a built-in oil cooler that has a movable mounting surface on which the cooler 3 can be moved in parallel. 2. The pair of projections 6 are provided integrally on the bottom surface at the axial position of the pair of holes 1 and at a position slightly outside of the tank body 2 in the longitudinal direction from the pair of holes 1 according to claim 1, A rising guide portion 6a is formed integrally with the convex portion 6 to the opening side so that the distance between a pair of the rising guide portions 6a separated in the longitudinal direction matches the length of the oil cooler 3. Radiator tank with built-in oil cooler. 3. The boss portion 4 of the oil cooler 3 according to claim 1, wherein the inner surface side edge of the hole 1 becomes a tapered surface 1a that expands inward. A radiator tank with a built-in oil cooler, which is formed on a tapered tapered surface 4a, and has a guide surface 6b tapered or formed at the leading edge of the rising guide portion 6a.