JPH063692Y2 - Air cooling structure of intercooler for supercharger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an intercooler air-cooling structure that smoothly guides a cooling traveling wind toward a supercharger intercooler of an automobile.

(Prior Art) Some engines installed in automobiles are equipped with a supercharger. In this case, in order to improve the charging efficiency of the engine, an intercooler is provided in the route from the supercharger to the engine to drive the vehicle. There is one in which supercharged air is cooled by wind through this intercooler (for example, the actual open sho 62-
156138).

In the above case, there is a conventional configuration shown in FIG. 5 for cooling the intercooler with traveling wind.

This will be explained with reference to the drawings. Reference numeral 31 is a side frame in the body frame of the automobile.
Extends in the front-rear direction of the vehicle body and has a box-shaped cross section. The arrow Fr in the figure indicates the front of the vehicle body.

An intercooler 32 is attached on the side frame 31, and an opening 34 is formed in an upper surface plate 33 of the side frame 31 near the front of the intercooler 32.
Further, a conduit 36 connecting the opening 34 and the front surface of the intercooler 32 is provided.

The front end side of the side frame 31 receives the traveling wind, and as shown by an arrow A in the drawing, the traveling wind flows rearward in the side frame 31.
A rear opening edge 3 of the opening 34 is provided in the side frame 31.
A guide plate 37 is welded to a position corresponding to 4a, which closes the passage in the side frame 31. Therefore, the guide plate 37 guides the traveling wind flowing backward in the side frame 31 toward the opening 34 as indicated by an arrow B in the figure. Then, the traveling wind guided by the guide plate 37 passes through the opening 34 and is guided to the intercooler 32 through the conduit 36 as shown by an arrow C in the figure, and the traveling wind is supercharged through the intercooler 32. Cool the air.

(Problems to be Solved by the Invention) In the above configuration, since the guide plate 37 is provided at a right angle to the passage in the side frame 31, the traveling wind flowing backward in the side frame 31 has the opening 34. Before being guided to, the guide plate 37 is temporarily collided. Therefore, there is an inconvenience that the pressure loss in the traveling wind becomes large and the wind speed toward the intercooler 32 decreases.

Therefore, in order to suppress the decrease in the pressure loss, it may be considered to increase the opening area of the opening 34. However, if the opening 34 is simply enlarged, the strength of the side frame 31 in this portion is reduced accordingly, which is not preferable.

(Purpose of the Invention) The present invention was made by paying attention to the above-mentioned circumstances, and when guiding the traveling wind flowing rearward in the side frame toward the intercooler, the traveling wind is pressurized. An object of the present invention is to suppress the occurrence of loss to improve the cooling effect in the intercooler, and to prevent the strength of the side frame from decreasing even when the occurrence of pressure loss is suppressed.

(Structure of device) A feature of the device for achieving the above-mentioned object is that an opening is formed in a top plate of a side frame near the front of an intercooler, and a guide plate is provided in the side frame. The rear end is located in the vicinity of the rear opening edge of the opening, and the guide plate is formed in a downward slope, and the front end of the guide plate is fastened together with the engine support member to the lower surface plate of the side frame. is there.

(Operation) The operation of the above configuration is as follows.

The traveling wind flowing backward in the side frame 4 is guided to the opening 17 so as to be scooped up by the guide plate 20 formed in the side frame 4 in a front-down shape. The traveling wind guided by the guide plate 20 passes through the opening 17 and reaches the intercooler 11.

Further, since the rear end of the guide plate 20 is located in the vicinity of the rear opening edge 17a of the opening 17, the guide plate 20 is formed so as to be inclined downward, so that the guide plate 20 is provided corresponding to the opening 17. . For this reason, the guide plate 20 compensates for the strength that is reduced due to the formation of the opening 17, so that the side frame 4 has a predetermined strength.

Further, when the engine support member 6 is screwed to the side frame 4, the guide plate 20 is also fastened to the side support 4, so that the guide plate 20 is firmly attached to the side frame 4.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In FIG. 2, 1 is a vehicle body frame, 2 is front wheels, 3 is an engine, and an arrow Fr indicates the front of the vehicle body.

The body frame 1 is a pair of left and right side frames 4, 4
Each side frame 4 extends in the front-rear direction of the vehicle body and substantially horizontally. Above side frames 4, 4
An engine support member 6 is installed between the engine support member 6 and the engine support member 6 supports the engine 3.

A carburetor 8 is attached to the intake manifold 7 of the engine 3. On the other hand, 9 is a turbocharger that operates by utilizing the exhaust pressure of the engine 3, and an intercooler 11 is interposed between the supercharger 9 and the carburetor 8 and they are connected to each other by an intake pipe 12. ing.

Then, when the engine 3 operates, the supercharger 9 is interlocked with it, and the supercharger 9 compresses the intake air to make it supercharged air. This supercharged air is intercooler 1
As it passes 1, it is cooled by the running wind via the intercooler 11 and then drawn into the engine 3 through the carburetor 8.

1 to 4, the side frame 4 is made of sheet metal and has a box-shaped cross section. The side frame 4 covers a U-shaped frame 13 having a substantially U-shaped cross section and an upper surface of the U-shaped frame 13. The upper surface plate 14 is welded to the upper end of the U-shaped frame 13. The intercooler 11 is screwed to the right side frame 4 of the side frames 4 and 4 with a bolt 16.

An opening 17 having a rectangular shape in plan view is formed in the upper surface plate 14 of the side frame 4 near the front of the intercooler 11. In addition, a sheet metal conduit 18 that connects the opening 17 and the front surface of the intercooler 11 is provided.

The front end side of the side frame 4 is adapted to receive traveling wind, and this traveling wind flows backward in the side frame 4 as indicated by arrow A in FIG.
Inside the side frame 4, there is provided a guide plate 20 for guiding the traveling wind flowing through the side frame 4 toward the opening 17 as indicated by an arrow B in FIG.

The guide plate 20 is made of sheet metal, has a substantially U-shaped cross section, and includes a bottom plate 21 and side plates 22 and 22 integrally formed on the left and right sides of the bottom plate 21, respectively. The rear end of the bottom plate 21 is located in the vicinity of the rear opening edge 17a of the opening 17, and the guide plate 20 is inclined downward as a whole as a whole. In this case, the both side plates 22 and 22 are joined to the side plates 13a and 13a of the U-shaped frame 13 and spot-welded. This spot welding point is shown in Fig. 1 and Fig. 4 ×
It is indicated by a mark.

On the other hand, the end portion of the engine support member 6 is screwed to the lower surface plate 13b of the U-shaped frame 13 with a bolt 25 via a pair of upper and lower elastic bodies 24, 24.
The elastic bodies 24, 24 are made of rubber or the like, and absorb the vibration transmitted from one of the side frame 4 and the engine support member 6 to the other.

In the above case, the front end of the bottom plate 21 of the guide plate 20 is screwed to the lower surface plate 13b of the U-shaped frame 13 using the bolt 25. Therefore, the guide plate 20 is more firmly attached to the side frame 4 not only by the welding but also by the screwing.

The guide plate 20 has a rear end having a rear opening edge 17 having an opening 17.
It is located in the vicinity of a and has a downward slope. Therefore, the guide plate 20 guides the traveling wind flowing backward in the side frame 4 to the opening 17 by scooping up the traveling wind as indicated by an arrow B in FIG. Therefore, the traveling wind is smoothly guided from the inside of the side frame 4 to the intercooler 11 through the opening 17 as shown by the arrow B in FIG. 1, and the traveling wind is the same as arrow C in FIG. The supercharged air is cooled via the intercooler 11 as indicated by.

By the way, when the opening 17 is formed in the side frame 4,
Although the strength of the side frame 4 in this portion is reduced, the guide plate 20 is inclined downward from the rear opening edge 17a of the opening 17, that is, the guide plate 20 is provided corresponding to the opening 17. Therefore, the guide plate 20 functions as a reinforcing material for the portion where the opening 17 is formed, and thus the guide plate 20 compensates for the decrease in strength due to the formation of the opening 17. Moreover, the guide plate 20 has a substantially U-shaped cross section.
Because it is shaped like a letter and has high rigidity,
The above reinforcement is performed more effectively.

(Effect of the Invention) According to the present invention, the guide plate provided in the side frame is formed in an inclined shape that is frontward and downward from the rear opening edge of the opening, and thus the traveling wind flowing backward in the side frame. Since the air is guided by being scooped up to the opening, the traveling wind is smoothly guided from the inside of the side frame to the intercooler through the opening. As a result,
The generation of pressure loss in the traveling wind is suppressed, the traveling wind is given to the intercooler at a desired speed, and the cooling effect in the intercooler is improved.

Further, since the guide plate is provided corresponding to the opening, this guide plate supplements the strength that is reduced by forming the opening. Therefore, even if the opening is enlarged to some extent, there is no problem in strength of the side frame.
In this way, the opening can be enlarged to further reduce the pressure loss of the traveling wind.

Moreover, when the engine support member is screwed to the side frame, the guide plate is also fastened to the side frame, so the guide plate can be attached more firmly to the side frame with a simple structure, and serves as a reinforcing material for the portion with the opening. It works even more effectively.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention, FIG. 1 is a sectional view taken along the line II of FIG. 2, FIG. 2 is an overall plan view, and FIG. 3 is III of FIG. -III line sectional drawing, FIG. 4 is a partially broken perspective view, FIG. 5 is a figure which shows a prior art example and is equivalent to FIG. 1 ... Body frame, 4 ... Side frame, 6 ... Engine support member, 11 ... Intercooler, 13b
...... Bottom plate, 14 ... Top plate, 17 ... Opening, 20 ...
direction board.

Claims (1)

[Scope of utility model registration request] 1. A side frame of a vehicle body frame is formed in a box-shaped cross section, an intercooler for a supercharger is provided on the side frame, and an opening is formed in a top plate of the side frame near the front of the intercooler. In an air-cooling structure of an intercooler for a supercharger of an automobile, in which a guide plate for guiding a running wind flowing backward in the inside toward the opening is provided in this side frame, the rear end of the guide plate is located at the rear of the opening. An intercooler for a supercharger, characterized in that the guide plate is formed near the opening edge and is formed in a downwardly inclined shape, and the front end portion of the guide plate is fastened together with an engine support member to a bottom plate of a side frame. Air cooling structure.