JPH0617616Y2 - Outside air introduction structure of the intercooler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an outside air introduction structure of an intercooler that serves as a passage of air for cooling the intercooler in a vehicle of a type equipped with the intercooler.

[Prior Art] Conventionally, the air that cools the air introduced into the engine passing through the intercooler is formed between the hood outer panel 1 and the hood inner panel 2 as shown in FIG. The intercooler duct 4 having the opening 4a in the upper portion is guided to the intercooler main body 5 through the passage (see Japanese Utility Model Laid-Open No. 57-78759).

In FIGS. 6 and 7, 6 is an engine, 7 is a bumper, 8 is a radiator, 9 is a cooling fan, 10 is a duct panel, 11 is a head lamp, and 12 is a bulkhead.

[Problems to be Solved by the Invention] The air introduced into the engine 6 needs to be cooled when the engine 6 is under load, such as during acceleration or high-speed traveling. Therefore, it is necessary to introduce air for cooling the intercooler body 5. I need.
On the other hand, the air introduced into the engine 6 does not need to be cooled so much because it is not required to have power performance when idling or running at low speed.

Then, the cooling air due to the traveling wind guided to the intercooler body 5 passes through the intercooler duct 4, but since the opening 4a is provided in the upper inner portion near the radiator grill 3, the traveling wind during high-speed traveling is reduced. There is a problem that the intercooler duct 4 does not enter sufficiently and the cooling effect is insufficient.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an outside air introduction structure of an intercooler in which the outside air is sufficiently guided to the intercooler main body when traveling at high speed.

[Means for Solving the Problems] In order to achieve the above object, the present invention is extended from the intercooler main body side in the vehicle front direction substantially along the lower side of the hood, and the outside air introduction port is opened at the front end portion. An outside air introducing structure for an intercooler provided with an intercooler duct separate from the hood on the engine room side, the tip of the intercooler duct being slanted so that its upper edge is located on the rear side in the vehicle longitudinal direction. Formed in an inclined manner, the upper rear edge is connected to the lower edge of the tip of the intercooler duct,
An outside air introduction duct having a front end facing the radiator grille is provided, and a continuous annular sealing member is provided between the tip of the intercooler duct and the upper portion of the outside air introduction duct.The hood inner panel is closed with the hood. An outside air guide portion is provided, which is sometimes closely joined to the seal member and which allows the intercooler duct and the outside air introduction duct to communicate with each other.

[Operation] With the above configuration, during acceleration or during high-speed traveling, the outside air introduction guide effectively acts, the traveling wind sufficiently flows into the intercooler duct, and the intercooler main body is efficiently cooled.

[Embodiment] An embodiment according to the present invention will be described below with reference to FIGS. 1 and 2.

In FIGS. 1 and 2, an intercooler duct 4 extends from the intercooler body 5 side in the vehicle front direction substantially along the lower side of the hood constituted by the hood outer panel 1 and the hood inner panel 2. The tip of the intercooler duct 4 is formed so that the upper edge is inclined so that the upper edge is located on the vehicle rear side, and the lower edge is connected to the outside air introduction guide 113 by adhesion or the like. The outside air introduction guide 113 is attached to the radiator grill 3 with the bolt B.
And has side walls 113a and 113a, and is connected from the lower edge of the tip of the intercooler duct 4 to gradually expand the opening area of the outside air inlet S.

On the other hand, the hood inner panel 2 of the hood is provided with an outside air guide portion 2a recessed on the side of the hood outer panel 1 at a position corresponding to the outside air introduction duct 113, and the outside air introduction guide 113 and the intercooler are formed. The duct 4 and the seal member 15 are closely joined when the hood is closed.

With such a configuration, it is possible to promote the introduction of outside air according to the speed.

Further, according to the present embodiment, by forming a part of the hood inner panel 2 as a recess, a part of the guide portion for introducing the outside air is formed, so that the formation is easy and the introduction of the outside air is performed. Even if the guide is provided, it is not necessary to increase the height of the hood for space reasons, and therefore, the freedom of molding is not impaired.

3 to 5 show a reference example of the present invention.

3 to 5, a long plate-shaped air guide 13 whose front portion is bent obliquely downward is pivotally attached to a pair of ribs 3a on the back surface of the radiator grill 3 to form an outside air introduction guide 113. . That is, the pivot pins 13a are provided at both ends in the vehicle width direction of the long plate-shaped air guide 13,
The pivot pin 13a penetrates a hole provided in the rib 3a. The rib 3a is formed with an arc-shaped elongated hole 3b, and pins 13b provided at both ends of the air guide 13 in the vehicle width direction are engaged with the elongated hole 3b. Therefore, in the air guide 13, the pin 13b is rotatable about the pivot pin 13a as a fulcrum along the elongated hole 3b.

A spring 14 is attached near the pivot pin 13a of the air guide 13 so as to urge the air guide 13 to rotate upward.

Therefore, when traveling at a high speed, the wind pressure caused by the traveling wind hits the front surface of the bent portion of the air guide 13, and rotates the air guide 13 downward against the biasing force of the spring 14. Therefore, the opening 4a of the intercooler duct 4 is greatly opened, and the air due to the traveling wind sufficiently flows in through the opening 4a using the air guide 13 as a guide, and the intercooler body 5 is efficiently cooled.

According to the reference example, since there is no running wind at the time of idling, the air guide 13 is rotated upward by the urging force of the spring 14 and operates so as to close the opening 4a. In this case, in the intercooler main body 5, since the temperature of the engine 6 does not rise so much, the air passing through the intercooler duct 4 is unnecessary. Then, radiator grill 3
In this case, since the opening area is large, the air drawn by the cooling fan 9 is sufficiently sucked in, and the radiator 8 and the like are efficiently cooled. That is, an increase in water temperature, oil temperature, cog belt temperature, etc. can be prevented.

In the reference example, the air guide was attached using the ribs on the back surface of the radiator grille, but the present invention is not limited to this means, and this mechanism is made as a separate body and attached to the radiator grille or radiator core support upper panel. It may be attached. In the reference example, the air guide is a flap type, but the air guide is not limited to this and may be a type in which an actuator is controlled according to the vehicle speed.

[Advantages of the Invention] As is apparent from the above, according to the configuration of the present invention, the intercooler duct is provided in the engine room side separately from the hood, and extends from the intercooler body side in the vehicle front direction and the tip portion thereof is provided. Is connected to the outside air introducing duct, and the outside air introducing duct is connected to the radiator grill,
The hood can be opened and closed by leaving the intercooler duct and the outside air introduction duct on the engine room side. Therefore, even if the opening area of the outside air introduction duct is gradually expanded to the radiator grille, it is not necessary to consider interference with peripheral parts when opening and closing the hood, and the opening and closing of the hood can be set without difficulty. Also, when the hood is closed, the outside air guide portion is in close contact with the seal member, so the seal member receives a downward load from the hood in any part, and the intercooler duct and the outside air introduction duct are separated from the hood to the engine room side. Even if it is provided in the above, the sealing property can be surely maintained. Therefore, even when traveling at high speed, the radiator grille passes through the outside air introduction duct and the intercooler duct,
Sufficient outside air can be guided to the intercooler body.

[Brief description of drawings]

1 to 5 show an embodiment according to the present invention. FIG. 1 is a perspective view showing an essential part of the first embodiment, FIG. 2 is a sectional view of an essential part of FIG. 1, and FIG. FIG. 4 is a conceptual view of the essential parts of the second embodiment, FIG. 4 is a perspective view mainly showing the air guide, FIG. 5 is an enlarged perspective view of part A of FIG. 4, and FIG. A conceptual diagram and FIG. 7 are plan views of a conventional example. 1 ... Hood outer panel 2 ... Hood inner panel 3 ... Radiator grill 4 ... Intercooler duct 5 ... Intercooler body 6 ... Engine, 13 ... Air guide 113 ... Outside air introduction guide

Claims (1)

[Scope of utility model registration request] 1. An intercooler duct, which extends from the intercooler main body side in the vehicle front direction substantially along the hood lower side and has an outside air introduction port opened at the front end, is provided separately from the hood on the engine room side. In the structure for introducing outside air of an intercooler, the tip portion of the intercooler duct is formed so as to be inclined so that its upper edge portion is located on the rear side in the vehicle longitudinal direction, and the tip portion of the intercooler duct is formed. An outside air introduction duct having a lower edge portion connected to an upper rear edge portion and a front end portion coupled to a radiator grill so as to face the radiator grille is provided, and the outside end portion of the intercooler duct and an upper portion of the outside air introduction duct are connected to each other. An outside air guide portion provided with an annular seal member, which is closely joined to the hood inner panel when the hood is closed and which connects the intercooler duct and the outside air introduction duct. The outside air introduction structure of the intercooler, which is characterized by the provision of.