JP2000127769A - Engine room - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the blow back of a part of exhaust air toward a position forward of a radiator through an opening at the time of idling by arranging a motor-driven fan at the side of a vent hole inclined toward a transmission, and forming an opening not covered with a shroud on the core part of a radiator. SOLUTION: A motor-driven fan 27 is positioned in such a state as inclined by a preset angle of θ1 toward a vent hole 35, and inclined by a preset angle in a horizontal direction toward a transmission 23. Furthermore, an opening not covered with a shroud 25 is formed on the core part 37 of a radiator 19 at the opposite side of the transmission 23. As a result, a travel wind is actively introduced through the opening during the travel of a vehicle, and cooling efficiency is improved. Also, the inverse flow of air from the motor-driven fan 27 is substantially reduced to be blown back to the forward of the radiator 19 through the opening not covered with the shroud 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine room in which a radiator is arranged facing a front grill of an automobile, and an engine is arranged horizontally behind the radiator.

[0002]

2. Description of the Related Art Conventionally, as an engine room of an automobile,
For example, one disclosed in Japanese Utility Model Laid-Open No. 2-37222 is known. FIG. 6 shows this type of engine room, in which the front grill 1
The condenser 2 and the radiator 3 are arranged in opposition to each other.

[0003] Behind the radiator 3, an engine 4 is disposed horizontally. A transmission 5 is disposed at a lower portion of one side of the engine 4 in the lateral direction. An electric fan 7 is arranged between the radiator 3 and the engine 4 via a shroud 6 that covers the rear surface of the radiator 3. Further, a ventilation port 9 is formed between the engine 4 and an under cover 8 disposed below the radiator 3.

[0004] Then, as shown in FIG.
An opening 11 that is not covered with the shroud 6 is formed on the side of the core 10 opposite to the transmission 5 (on the engine side). In such an engine room, as shown in FIG. 6, when the vehicle is idling, the air from the front grill 1 flows through the condenser 2 and the core 10 of the radiator 3 by the operation of the electric fan 7, and the engine After colliding with the engine 4 and diffusing in various directions, the ventilation holes 9 formed between the undercover 8 and the engine 4
Is discharged to the outside.

[0005] As shown in FIG. 8, when the vehicle is running, the traveling wind 12 is positively introduced from the opening 11 not covered by the shroud 6, and the cooling efficiency can be improved.

[0006]

However, in such a conventional engine room, when the vehicle is idling, as shown in FIG. And diffused in various directions, increased the static pressure near the opening in front of the engine, and was blown back from the opening 11 to the front surface of the condenser 2 or the radiator 3, resulting in a decrease in cooling efficiency. .

Conventionally, as shown in FIG. 9, a pair of electric fans 7, 7 are arranged side by side via a shroud 6 covering a rear surface of a core portion 10 of a radiator 3, and are disposed above the core portion 10. A device in which an opening 14 not formed by the shroud 6 is formed is known. In such a device as well, as shown in FIG. 4, diffuses in various directions, increases the static pressure near the opening in front of the engine, and blows back from the opening 14 to the condenser 2 or the front surface of the radiator 3. Was.

The present invention solves such a conventional problem. When the vehicle is idling, a part of the exhaust air from the electric fan flows back through the opening of the radiator which is not covered by the shroud, and flows in front of the radiator. It is an object of the present invention to provide an engine room in which blow-back can be significantly reduced.

[0009]

According to the first aspect of the present invention, in the engine room, a radiator is disposed so as to face the front grill,
An electric fan is disposed horizontally behind the radiator, a transmission is disposed at a lower portion on one side in the lateral direction, and an electric fan is provided between the radiator and the engine via a shroud that covers a rear surface of a core portion of the radiator. In an engine room having a ventilation port formed between the undercover and the engine disposed below the radiator, in the engine room, the electric fan is directed toward the ventilation port, and on the transmission side. The radiator is provided with an opening that is not covered by the shroud in the core portion of the radiator.

According to a second aspect of the present invention, in the engine room according to the first aspect, the opening is formed at a lower portion of the core. In the engine room according to claim 3, a radiator is disposed to face the front grill, and the engine is disposed horizontally behind the radiator, and a rear surface of a core portion of the radiator is provided between the radiator and the engine. A pair of electric fans are arranged side by side in a lateral direction via a shroud to cover, and a pair of electric fans are provided in an engine room in which a ventilation opening is formed between an undercover arranged below the radiator and the engine. Are arranged so as to be inclined toward the ventilation port side, and an opening that is not covered with the shroud is formed below the core portion of the radiator.

(Function) In the engine room of the first aspect,
Since the electric fan was placed inclined to the ventilation port side,
The exhaust air from the electric fan is guided to the ventilation opening without colliding vertically with the engine, and is exhausted from the ventilation opening toward the rear of the vehicle. Further, since the electric fan is arranged to be inclined toward the transmission side, which is smaller than the engine and has good ventilation, the exhaust air from the electric fan flows smoothly to the rear of the vehicle.

Therefore, an increase in the static pressure near the opening which is not covered by the shroud of the core of the radiator is suppressed,
Blowback from the opening to the front of the condenser or radiator is reduced. In the engine room of claim 2,
Since the opening is formed below the core portion where the exhaust air flows smoothly, the static pressure in the vicinity of the opening is reduced, and blowing back from the opening to the front surface of the condenser or the radiator is prevented.

[0013] In the engine room of the present invention, the pair of electric fans are disposed so as to be inclined toward the ventilation opening, so that the exhaust air from the pair of electric fans does not collide with the engine vertically, and the ventilation opening is not changed. And is discharged from the ventilation opening toward the rear of the vehicle. Since the opening not covered by the shroud is formed below the core of the radiator, the static pressure in the vicinity of the opening is reduced, and backflow from the opening to the condenser or the front surface of the radiator is prevented.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the engine room of the present invention. In the engine room of this car, a condenser 17
And a radiator 19 are arranged.

[0015] Behind the radiator 19, an engine 21 is disposed horizontally. A transmission 2 smaller than the engine 21 is provided at a lower portion of one side of the engine 21 in the lateral direction.
3 are arranged. A shroud 25 that covers the rear surface of the radiator 19 is provided between the radiator 19 and the engine 21.
, An electric fan 27 is arranged.

The electric fan 27 includes a motor 29 and the fan 3
1. Further, a ventilation port 35 is formed between the engine 21 and the under cover 33 disposed below the radiator 19. In this embodiment, the electric fan 27 is arranged to be inclined by a predetermined angle θ1 toward the ventilation opening 35.

As shown in FIG. 2, the electric fan 27 is arranged at a predetermined angle θ2 toward the transmission 23. Further, as shown in FIGS. 2 and 3, an opening 39 that is not covered by the shroud 25 is formed on the core portion 37 of the radiator 19 on the side opposite to the transmission 23.

In the above-mentioned engine room, as shown in FIG. 1, the air from the front grill 15 is moved by the operation of the electric fan 27 so that the condenser 17 and the radiator 1
9 flows through the core portion 37 of the
After colliding with the engine 1, the air is discharged to the outside through a ventilation hole 35 formed between the under cover 33 and the engine 21. Further, as shown in FIG. 2, when the vehicle travels, the traveling wind 41 is positively introduced from the opening 39 not covered by the shroud 25, and the cooling efficiency is improved.

In the above-mentioned engine room, since the electric fan 27 is disposed so as to be inclined toward the ventilation port 35 side, the exhaust air from the electric fan 27 does not collide with the engine 21 vertically, and It is guided to 35 and discharged from the ventilation port 35 toward the rear of the vehicle. Further, since the electric fan 27 is arranged to be inclined toward the transmission 23 side, which is smaller than the engine 21 and has good ventilation, the exhaust wind from the electric fan 27 flows smoothly to the rear of the vehicle.

Since an opening 39 which is not covered by the shroud 25 is formed on the core portion 37 of the radiator 19 on the side opposite to the transmission 23, the flow of exhaust air from the electric fan 27 into the opening 39 is reduced. Is done. That is, in the engine room configured as described above, the electric fan 27 is disposed so as to be inclined toward the ventilation port 35 and toward the transmission 23, and is opposed to the transmission 23 of the core 37 of the radiator 19. Since the opening 39 not formed by the shroud 25 is formed on the side of the radiator 19, the air from the electric fan 27 is not covered by the shroud 25 when the vehicle is idling.
Backflow through the opening 39 of the radiator 19 can be greatly reduced as compared with the related art.

In the above-mentioned engine room, the opening 39 is formed below the core 37, so that the exhaust air 43 colliding with the engine 21 and flowing upward flows back into the opening 39 effectively. Can be prevented. FIG.
This shows a second embodiment of the engine room of the present invention. In this embodiment, as shown in FIG. 5, a pair of electric fans 47, 47 are provided on a shroud 45 covering a rear surface of a core portion 37 of a radiator 19. They are arranged side by side.

An opening 49 that is not covered by the shroud 45 is formed below the core 37 of the radiator 19. Then, as shown in FIG. 4, the pair of electric fans 47, 47 move toward the ventilation port 35 side at a predetermined angle θ3.
It is arranged only at an inclination. Note that, in this embodiment, the same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the engine room according to the second embodiment, the pair of electric fans 47, 47 are disposed so as to be inclined toward the ventilation port 35, so that the pair of electric fans 47, 47 are arranged.
The air blown from the vehicle is guided to the ventilation port 35 without colliding vertically with the engine 21, and is discharged from the ventilation port 35 toward the rear of the vehicle. And the core part 37 of the radiator 19
An opening 49 that is not covered by the shroud 45 is formed at the lower part of the air outlet 51, so that the exhaust air 51 colliding with the engine 21 and flowing upward is prevented from flowing back into the opening 49.

That is, in the engine room of the second embodiment, a pair of electric fans 47, 47
And the core part 3 of the radiator 19
7, an opening 49 not covered by the shroud 45 is formed.
It is possible to significantly reduce the flow of air from the air blowers 7 and 47 back through the opening 49 of the radiator 19 that is not covered by the shroud 45 and blown back to the front of the radiator 19 as compared with the related art.

In the above-described embodiment, an example has been described in which the pair of electric fans 47, 47 have the same size. However, the present invention is not limited to such an embodiment, and the sizes are different. May be.

[0026]

As described above, in the engine room according to the first aspect, the electric fan is disposed so as to be inclined toward the ventilation port and toward the transmission, and is provided at the core of the radiator and at the shroud. The formation of the uncovered opening significantly reduces the possibility that air from the electric fan flows back through the opening of the radiator that is not covered by the shroud and is blown back to the front of the radiator when the vehicle is idling. be able to.

In the engine room according to the second aspect, since the opening is formed at the lower portion of the core, it is possible to prevent the exhaust air that has flowed upward due to the collision with the engine from flowing back to the opening. In the engine room according to the third aspect, the pair of electric fans are disposed so as to be inclined toward the air vent side, and an opening that is not covered by the shroud is formed below the core of the radiator. It is possible to significantly reduce that air from the fan flows back through the opening of the radiator that is not covered with the shroud and is blown back to the front of the radiator as compared with the related art.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a first embodiment of an engine room of the present invention.

FIG. 2 is a top view showing a main part of FIG. 1;

FIG. 3 is a rear view showing the shroud of FIG. 1;

FIG. 4 is an explanatory diagram showing a second embodiment of the engine room of the present invention.

FIG. 5 is a rear view showing the shroud of FIG. 4;

FIG. 6 is an explanatory diagram showing an example of a conventional engine room.

FIG. 7 is a rear view showing the shroud of FIG. 6;

FIG. 8 is a top view showing a main part of FIG. 1;

FIG. 9 is an explanatory view showing another example of a conventional shroud.

FIG. 10 is an explanatory diagram showing a flow of the shroud in FIG. 9;

[Explanation of symbols]

 15 Front Grill 19 Radiator 21 Engine 23 Transmission 25,45 Shroud 27 Electric Fan 33 Undercover 35 Ventilation Port 37 Core 39,49 Opening

Claims (3)

[Claims] 1. A radiator (19) is arranged opposite to a front grill (15), an engine (21) is arranged horizontally behind the radiator (19), and a transmission ( 23) and an electric fan (27) between the radiator (19) and the engine (21) via a shroud (25) covering a rear surface of a core part (37) of the radiator (19).
And an electric fan (27) in an engine room in which a ventilation port (35) is formed between an undercover (33) disposed below the radiator (19) and the engine (21). Of the radiator (19), and the shroud (25) are covered with the core (37) of the radiator (19). An engine room characterized by forming an unobstructed opening (39). 2. The engine room according to claim 1, wherein the opening (39) is formed below the core (37). 3. A radiator (19) is arranged facing the front grill, an engine (21) is arranged horizontally behind the radiator (19), and the radiator (19) and the engine (21) are arranged side by side. A pair of electric fans (47, 47) are arranged side by side via a shroud (45) that covers the rear surface of the core part (37) of the radiator (19). In an engine room having a ventilation port (35) formed between an under cover (33) disposed in the engine and the engine (21), the pair of electric fans (47, 47) are connected to the ventilation port (3).
5) The radiator (19) is arranged so as to be inclined toward the side, and an opening (49) not covered by the shroud (45) is formed below the core (37) of the radiator (19). Engine room.