JPH02220978A - Outside air intake structure for vehicle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Field of Application) The present invention is directed to the use of external air taken in by an air guide through a grille to a new air conditioner such as an intercooler through an air duct provided in an engine hood. The present invention relates to a vehicle that sprays air onto an object to be cooled, and particularly relates to an improvement of an external air intake structure.

(Prior Art) Heat dissipating parts such as an engine and a radiator are arranged in the engine room of a vehicle. Therefore, a grill is provided at the front end of the vehicle body, and as the vehicle is driven, outside air is taken in from there and guided to the heat dissipating parts. It is supposed to cool down. However, recently, for example, the engine is often equipped with a turbocharger device that supplies supercharging air, and this device and its component parts such as an intercooler are placed in the engine room as new objects to be cooled. Ru.

Therefore, it is insufficient to cool such new objects to be cooled only with the air taken into the engine room from the grill, and it is necessary to add some kind of cooling means.

Therefore, a new cooling structure for the object to be cooled has been adopted, as shown in FIGS. 8 and 9, for example. That is, 1 is an engine room, and existing heat dissipating parts such as an engine 2 and a radiator 3 are arranged here.

An intercooler 4 of a turbocharger device, which is a new object to be cooled, is mounted above the engine 2. A grill 5 is provided at the front end of the engine compartment 1, so that external air can be taken into the engine compartment 1. In addition, a pair of air guide lowers (only one shown) spaced apart from each other are opened in a bridge panel 6 provided across the width at the upper part of the front end of the engine room 1, and the upper end of the air guide 8 is opened here. Connected. This air guide 8 is curved toward the front grille 5 from the connection portion of the wind guide lower, and opens at a position near the grille 5.

In the figure, 10 is an engine hood. The rear side of the engine hood 10 is pivotally connected to the vehicle body via a hinge (not shown), and the upper opening of the engine compartment 1 can be opened and closed. This engine hood 10 is composed of a hood outer 11 and a hood inner 12, each of which is made of a thin metal plate. The outer hood 11 is curved along the curved surface of the vehicle body, and the inner hood 12 is fixed to each other along the periphery of the outer hood 11 so as to form a closed cross section. The front end of the hood inner 12 is as follows.

It is curved so as to be largely separated from the hood outer 11.

A pair of air intake ports 13, 13 are opened at the lower end surface of the hood inner 12, increasing the space capacity of each hood.

The air intake port 13.13 is provided at a portion facing the air guide lower, and a pair of flexible bellows-shaped guide seals 14 (only one of which is shown) is attached here.

That is, the guide seal 14 is connected to the engine hood 10.
with engine room 1 closed, air intake port 1
3 and the above-mentioned wind guide lower are communicated with each other. Further, a cylindrical adapter 15.15 is fixed near the air intake port 13 of the hood inner 12.

One end of the air duct 16 is connected here.

This air duct 16 will be further explained.

One end, the air intake side, is bifurcated and connected to the adapter 15.15. The other end is extended to face the upper part of the intercooler 4, which is the object to be cooled, and an air outlet 17 is opened in the lower surface thereof. In order to attach the air duct 16 in this manner, a duct attachment bracket 18 made of a metal plate is attached to the lower surface of the hood inner 12 by means such as spot welding. Mounting screw holes 19 are provided at appropriate positions on the peripheral end of the duct mounting bracket 18.

The air duct 16 is screwed here via a mounting screw.

Thus, part of the external air taken into the engine compartment 1 from the grille 5 as the vehicle travels can be guided to the air guide 8. From here, the external air is guided to the air duct 16 via the air guide lower and the adapter 15, and is blown out from the air outlet 17 to the intercooler 4, thereby efficiently cooling the intercooler 4.

(Problems to be Solved by the Invention) Since the air duct 16 is connected to the engine hood 10 in this way, the intercooler 4, which is a new object to be cooled, can be cooled.

In particular, there are problems with the air guide 8 that takes in outside air and its mounting structure. In other words, the air guide 8
is attached to the bridge panel 6 only at its upper open end, and the front open end on the side of the grille 5 is in a so-to-speak condition, with a certain amount of clearance 11 between it and the grille 5. From this, the external air introduced from the grille 5 is transferred to the air guide 8.
The air leaks from the gap before it is taken into the air guide 8, resulting in poor suction efficiency as the air guide 8. Also,
The bridge panel 6 is provided to ensure the rigidity of the vehicle body, but since a lower wind guide is opened here to communicate with the upper end opening of the air guide 8, this has a negative effect on maintaining rigidity. .

In order to increase the amount of external air taken into the air guide 8 and improve the suction efficiency without changing the basic configuration,
For example, the opening area of the air duct 16 may be increased. However, for this purpose the bridge panel 6
The area of the wind guide lower opening to be increased (must be
There is a problem that causes a decrease in vehicle body rigidity as described above.

The present invention was made in view of the above-mentioned circumstances, and it ensures suction efficiency by guiding all the external air introduced from the grille to the air guide without leaking, and directs the external air from this air guide to the air duct of the engine hood. The external air intake of the vehicle eliminates the opening in the bridge panel to ensure the rigidity of the vehicle body, and improves the cooling efficiency of the object to be cooled by arbitrarily setting the air circulation area of the air duct. The purpose is to provide an input structure.

[Structure of the invention]

(Means for Solving the Problems) In other words, the present invention includes arranging an object to be cooled such as an intercooler, providing a grill at the front end thereof, and constructing a bridge panel in the width direction at a predetermined distance from the grill. The engine room has an engine room with an air duct integrally attached to the upper opening of the engine room, and the engine hood is pivoted to open and close freely. The air guide is guided to the air duct of the engine hood and sprayed onto the object to be cooled.

The front end opening of the air guide is connected to the grille, the upper opening of the air guide is interposed between the grille and the bridge panel, and the upper opening of the air guide is connected to the air duct of the engine hood through a guide seal. This is an external air intake structure for a vehicle characterized by the following.

(Function) As the vehicle travels, external air is taken in from the grille to the air guide, guided from there into the air duct, and then blown out to the object to be cooled for cooling. Since the grille and the air guide were connected, there was no leakage, and since a guide seal was interposed between the air guide and the air duct, there was no leakage here either. Also, there is no need for an opening in the bridge panel.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

As shown in Figure 1, an engine 2 is installed in the engine room 1.
．． A radiator 3 is disposed, and an intercooler 4, which is a new object to be cooled, is mounted above the engine 2. and again.

A grill 5S is provided at the front end of the engine compartment 1 to draw air into the engine compartment 1 as the vehicle travels, and a bridge panel 6 is installed in the width direction at a predetermined distance from the bracket grill 5s. . Incidentally, if the position of this bridge panel 6 is the same as the conventional one, the position of the grille 5S is extended to a certain extent toward the front side, so that a space is created between them. As a result, the car body will have a longer nose. A pair of air guides 20 (only one shown) is provided spaced apart between the grill 5S and the bridge panel 6. As shown in FIG. 4, the air guide 20 has an end 20a that opens toward the front side and an end 20b that opens toward the top surface, and is entirely curved. As shown again in FIG. 1, the front end opening 20a of the air guide 20 is connected to a part of the grille 5S.

A portion of the upper opening 20b is placed on the bridge panel 6, and a portion is attached to the grille 5S.

On the other hand, 21 is an engine hood. The engine hood 21 includes an outer hood 22 that is curved along the curved surface of the vehicle body, and an inner hood 23 that is fixed along the periphery of the outer hood 22 and forms a closed cross section with the outer hood 22.

The hood inner 23 has a height that uses all the allowable space above the intercooler 4.

The rear side of the engine hood 21 is pivotally connected to the vehicle body via a hinge (not shown), and the upper opening of the engine compartment 1 can be opened and closed, as in the conventional case.

Further, as shown in FIGS. 2 and 3, the hood inner 23 is bent so as to come into contact with the hood outer 22 from a position at a predetermined distance from its front edge to the upper surface of the intercooler 4. .

That is, a pair of parallel seal portions 24, 24 are provided at a predetermined interval in one width direction. The surface of the hood inner 23 of the seal portion 24 is formed with a recess, into which a seal member 26 made of, for example, a rubber strip is fitted. Between the seal portion 24.24 and both side edges, there is a bone portion 27.27 where the outer hood 22 and the inner hood 23 form a closed cross section.
An air duct portion 28 is formed between the seal portions 24 and 24, and the hood outer 22 and the hood inner 23 form a closed cross section. In this way, the bone portion 27.
27 and the height of the air duct portion 28, the entire allowable space above the intercooler 4 is used.

Between the front edge of the engine hood 21 and the front ends of the seal portion 24, the bone portion 27, and the air duct portion 28, the hood inner 23 is bent relative to the hood outer 22 so that the mutual space capacity is increased. In addition, a hood lock hose 29 is interposed approximately at the center thereof. This hood lock line hose 29 is connected to a first hood lock line hose 30 provided with a hood lock member (not shown here).

A second hood lock hose 3 surrounds the first hood lock hose 30 at a predetermined interval on both sides thereof.
Consists of 1. And this first one. A pair of air intake ports 32° 32 are opened in the hood inner 23 portion between the second hood lock hoses 30 and 31, and these air intake ports 32 are filled with rubber material, for example, as shown in FIG. A suction side guide seal 33, which is a flexible cylinder, is connected. This suction side guide seal 33 is provided at a position where the air intake port 32 and the upper opening of the air guide 20 communicate with each other when the engine hood 21 closes the engine room 1. Also.

Intercooler 4 which is the rear end side of the air duct section 28
An air outlet 34 is opened at the opposing portion, and an outlet guide seal 35, which is a flexible cylinder made of rubber material, for example, is connected thereto. The above blowout side guide seal 35
is provided at a position that communicates the air outlet 34 with the intercooler 4 when the engine hood 21 closes the engine room 1.

Thus, a portion of the external air introduced from the grille 5S as the vehicle travels is directly introduced into the front end opening 20a of the air guide 20.

Here, since the air guide 20 is connected to the grill 5S, there is no leakage of the air taken in. and.

External air flowing through the air guide 20 is led out from the upper surface opening 20b and guided through the guide seal 33 to the air intake port 32 of the air duct section 28 provided in the engine hood 21. At this time, the upper surface opening 20b of the air guide 20 and the air intake port 3 of the air duct portion 28
Since the suction side guide seal 33 is interposed between the air guide 20 and the air duct 28, there is no leakage of air during the conduction from the air guide 20 to the air duct portion 28. Further, the external air taken in by the air intake port 32 is guided by the hood lock hose 29 and guided into the air duct section 28.

The air is conducted through the air duct portion 28 from the air outlet 34 to the intercooler 4 via the outlet side guide seal 35.
It is blown out towards.

In the above embodiment, the front end opening 20a of the air guide 20 is fixedly attached to the grille 5S, but the present invention is not limited to this, and may be configured as shown in FIG. 5, for example. Namely.

A stepped portion 200 is provided at the front end opening 20a1 of the air guide 2OA.
, and the stepped portion 200 has a predetermined gap l from the edge of the grill 5S.
It is connected so that it can slide to some extent.

Therefore, even if there is vibration due to running, the front end side opening 20a1 of the air guide 2OA moves freely and prevents noise such as chatter from occurring.

Further, as shown in FIG. 6, a claw 20 is provided in the front end opening 20a2.
A reinforcing metal fitting 202 on which 1 is hung is provided.

The other claw 201 of this reinforcing metal fitting 202 may be hooked onto the grille 5S. That is, the subassembly of the grill 5S and the air guide 20B becomes easy.

Further, as shown in FIG. 7, a grill 50S having a boss portion 51 in one part is provided, and the upper surface opening 20b of the air guide 20C is screwed into the boss portion 51 via a mounting screw 52. Similarly, grill 5S and air guide 20
Subassembly with B becomes easier.

Alternatively, the same effect can be obtained by inserting a boss provided on the air guide 20 with a taper into the sloped part of the grille 5S having a U-shaped cross section.

〔Effect of the invention〕

As described above, according to the present invention, the external air introduced from the grille is guided to the air guide without leaking, thereby improving the suction efficiency. In addition, external air is guided from the air guide to the air duct of the engine hood via a guide seal, completely eliminating air leakage and eliminating the need to open an air guide port in the bridge panel as in the conventional case. This ensures the rigidity of the vehicle body. At the same time, the air circulation area of the air duct section can be set arbitrarily, and the cooling efficiency for the object to be cooled can be improved.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, FIG. 1 is a schematic vertical sectional view of the front end of the vehicle, FIG. 2 is a vertical sectional front view of the engine hood, and FIG. 3 is a part of the hood inner. 4 is a perspective view of the air guide, FIGS. 5 to 7 show other embodiments of the present invention, FIG. 5 is a schematic vertical sectional view of the grill and the air guide, and FIG. 6 is the grill. FIG. 7 is a partially schematic vertical sectional view of the grille and air guide, FIGS. 8 and 9 show a conventional example of the present invention, and FIG. 8 shows the front end of the vehicle. FIG. 9 is an exploded top view of the hood inner and air duct. 4... Object to be cooled (intercooler), 5s... Grill, 6... Bridge panel, 1... Engine room. 28...Air duct section, 21...Engine hood. 20... Air guide, 33... (Suction side) guide seal. Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Claims] It has an engine room in which objects to be cooled such as an intercooler are placed, a grill is provided at the front end of the engine room, and a bridge panel is installed in the width direction at a predetermined distance from the grill. An engine hood with an air duct integrally attached to the opening is pivotally mounted so that it can be opened and closed freely, and external air introduced into the engine room from the grill is guided to the air duct of the engine hood through an air guide to cool the object. In the air guide, the front end opening of the air guide is connected to the grille, the upper opening of the air guide is interposed between the grille and the bridge panel, and the upper opening of the air guide is connected to the grille. An external air intake structure for a vehicle, characterized in that the part and the air duct part of the engine hood are connected through a guide seal.