JPH073177Y2 - Intercooler tank structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an intercooler, and more particularly to a tank structure of an intercooler capable of reducing abnormal noise generated in the tank.

[Conventional technology]

Generally, in an automobile, the intake air compressed by the supercharger is
Since the temperature rises, and problems such as substantial reduction in charging efficiency and knocking occur, for the purpose of cooling the intake air, for example, an intercooler as disclosed in JP-A-61-237998 is arranged. ing.

FIGS. 5 and 6 show this type of intercooler, and in the drawings, reference numeral 11 denotes a pair of seat plates arranged to face each other. These seat plates 11 have upper tanks 13
And the lower ankh 15 has been fixed.

A large number of tubes 17 and fins 19 are arranged between these seat plates 11 to form a core portion 21.

In such an intercooler, the intake air that has flowed in from the upper tank 13 is cooled while passing through the core portion 21, and flows out from the lower tank 15.

[Problems to be solved by the device]

However, in such a conventional intercooler,
When forming the upper tank 13 and the lower tank 15 by pressing a metal plate material, it is not possible to increase the plate thickness.Therefore, when the supercharging pressure is high, the pulsation of the intake system of the engine causes the upper tank There is a problem that the 13 and the lower tank 15 vibrate and an abnormal noise is generated.

Especially in diesel vehicles, this abnormal noise has been a serious problem.

Therefore, conventionally, the upper tank 13 and the lower tank 15 are manufactured by casting, but in this case, the cost of the intercooler becomes very high,
There is also a problem that the weight increases.

Further, it is conceivable to manufacture the upper tank 13 and the lower tank 15 from resin, but in this case, there is a problem that durability deteriorates because the upper tank 13 and the lower tank 15 become high temperature when the supercharging pressure is high.

The present invention solves the above problems, and an object of the present invention is to provide an intercooler tank structure that can reliably reduce the generation of noise from the tank even when the supercharging pressure is high. .

[Means for Solving the Problems]

The intercooler tank structure according to claim 1 according to the present invention is an intercooler in which tanks are arranged on both sides of a core part, and the tank is formed by laminating two plate materials of the same material having different plate thicknesses. It is a thing.

The tank structure of the intercooler according to a second aspect of the invention is the tank structure of the first aspect, in which an intermediate material made of a material different from these plate materials is arranged between two plate materials of the same material.

[Action]

In the present invention, since the tank is formed by laminating two plate materials having different plate thicknesses, the vibration of the inner plate material of the same material is suppressed by the outer plate material.

〔Example〕

Hereinafter, the details of the present invention will be described with reference to the embodiments shown in the drawings.

FIG. 1 shows an embodiment of an intercooler tank structure of the present invention. In the figure, reference numeral 31 denotes a seat plate into which a tube 33 is inserted and which is made of, for example, aluminum.

Therefore, in this embodiment, the tank 35 such as the upper tank or the lower tank has a two-layer structure including the inner tank 37 and the outer tank 39, and the outer surface of the inner tank 37 and the inner surface of the outer tank 39 are in contact with each other. There is. Then, the edges of the inner tank 37 and the outer tank 39 are inserted into a recess 41 formed along the outer periphery of the seat plate 31, and the thick line portion shown in the figure is fixed to the seat plate 31 by brazing or the like. .

In this embodiment, as shown in FIG. 2, the plate thickness A of the inner tank 37 is larger than the plate thickness B of the outer tank 39. The inner tank 37 and the outer tank 39 are each made of a plate material made of aluminum.

In the intercooler tank structure configured as described above, since the tank 35 is formed by stacking two plate materials of the same material, the vibration of the inner tank 37 causes the outer tank 39 to vibrate.
As a result, it is possible to reliably suppress the occurrence of abnormal noise from the tank 35 even when the supercharging pressure is high.

In the tank structure of the intercooler configured as described above, the inner tank 37 and the outer tank 39 have different plate thicknesses. Inner tank 37 as shown
Where C is the amplitude of the vibration of the outer tank 39 and D is the amplitude of the vibration of the outer tank 39, the amplitude of the abnormal noise such as the airflow noise emitted into the atmosphere is E, and the magnitude of the abnormal noise generated is significantly reduced from the conventional level. It becomes possible to do.

FIG. 4 shows another embodiment of the present invention. In this embodiment, a thin plate 43 made of, for example, resin or iron is interposed between an inner tank 37 made of aluminum and an outer tank 39. One surface of the thin plate 43 is in contact with the outer surface of the inner tank 37, and the other surface is in contact with the inner surface of the outer tank 39.

That is, in general, the tank of the intercooler is often formed of aluminum plate materials, and when two aluminum plate materials are piled up and subjected to the push processing, the two plate materials are fixed to each other and the damping effect is reduced. As described above, by interposing the thin plate 43 made of resin, iron or the like between the inner tank 37 made of aluminum and the outer tank 39,
It is possible to effectively prevent the inner tank 37 and the outer tank 39 from sticking to each other, and also to improve the damping effect.

In the embodiment described above, the inner tank 37 and the outer tank 39 are formed of metal, but the present invention is not limited to this embodiment, and may be formed of resin, for example. Of course good things. In this case, it is desirable to join the inner tank 37 and the outer tank 39 to each other at their edge portions with an adhesive material or screws.

Further, in the embodiment described above, the example in which the upper tank and the lower tank are formed in a plurality of layers has been described, but the present invention is not limited to such an embodiment, and for example, only the upper tank into which intake air flows is formed in a plurality of layers. Of course, it may be formed.

Furthermore, in the embodiment described above, the example in which the inner tank 37 and the outer tank 39 are formed by the plate material of the same material has been described, but the present invention is not limited to such an embodiment. It goes without saying that the outer tank may be formed of a steel plate such as stainless steel and the outer tank may be formed of a metal such as copper.

[Effect of device]

As described above, in the present invention, since the tank is formed by laminating two plate materials of the same material having different plate thicknesses, the vibration of the inner plate material is suppressed by the outer plate material,
Even when the supercharging pressure is high, there is an advantage that it is possible to reliably reduce the generation of abnormal noise from the tank.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the tank structure of the intercooler of the present invention. FIG. 2 is a vertical sectional view taken along the line II-II of FIG. FIG. 3 is an explanatory diagram for explaining the operation of the intercooler of FIG. FIG. 4 is a cross-sectional view showing another embodiment of the tank structure of the intercooler of the present invention. 5 and 6 are a front view and a side view showing a conventional intercooler. [Explanation of symbols of main parts] 35 …… tank 37 …… inner tank 39 …… outer tank

Claims (2)

[Scope of utility model registration request] 1. An intercooler tank structure in which tanks are arranged at both ends of a core portion, wherein the tank is formed by laminating two plate materials of the same material having different plate thicknesses. . 2. The intercooler tank structure according to claim 1, wherein an intermediate material made of a material different from these plate materials is arranged between two plate materials made of the same material.