JPH06328952A - Engine cooling device for vehicle - Google Patents

Abstract

PURPOSE:To provide an engine cooling device capable of shortening the size of an engine room in the longitudinal direction concerning a vehicle provided with the engine room furnished with a bonnet free to open and close above an engine in front of a driver's seat. CONSTITUTION:In an engine room 10, a radiator including a radiator 22 of engine cooling water is arranged above an engine 16 in the state where it is interposed between the engine 16 and a bonnet 20, and simultaneously, a forced cooling fan 26 for the radiator 22 is arranged adjacent to and facing the radiator 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle engine cooling device, and more particularly to a radiator arrangement in an engine room.

[0002]

2. Description of the Related Art Generally, in an automobile in which an engine room having an openable / closable hood is provided in front of a driver's seat, engine cooling water is disclosed, for example, in Japanese Utility Model Laid-Open No. 63-156818. A radiator for radiating heat and a radiator such as a condenser for restoring the vapor phase refrigerant in the air conditioner to a liquid phase are arranged at the front end in the engine room, and a forced cooling fan is provided behind the radiator. It is usually arranged in close proximity to the radiator. .

[0003]

Among vehicles in which an engine is arranged in front of a driver's seat, a vehicle generally called a recreational vehicle (RV) has a high vehicle height and a limited vehicle body. There is a demand to increase the volume of the passenger compartment and the luggage compartment by making the longitudinal dimension of the passenger compartment as long as possible within the entire length. In order to satisfy this requirement, it is necessary to cut down the size of the engine room in the front-rear direction, and by doing so, it is possible to shorten the front overhang, so not only the degree of freedom in body design is improved, The practical minimum turning radius (radius of the circular trajectory drawn by the outside of the tip of the bumper during full-lock turning) and the shortest distance in front of the vehicle (percurability) that can get out of parallel parking are also shortened, which has the advantage of improving the maneuverability of the vehicle. It is known to occur.

However, in a vehicle in which a radiator such as a radiator is arranged in front of the engine, there is a limit to the reduction of the dimension of the engine room in the front-rear direction, and an effective measure cannot be taken against the above demand. .

In view of the above circumstances, the present invention provides an engine cooling system capable of shortening the size of the engine room in the front-rear direction in a vehicle having an engine room having an openable and closable bonnet above the engine. The purpose is to provide a device.

[0006]

In a vehicle engine cooling system according to the present invention, a radiator including a radiator for engine cooling water is provided inside the engine room in a space between the engine and the hood. In addition, the forced cooling fan for the radiator is arranged above the engine, and is arranged so as to closely face the radiator.

The radiator and the forced cooling fan are arranged so as to be inclined forward and downward.

Further, in a vehicle having a plurality of radiators, the plurality of radiators are arranged on substantially the same plane or overlapping each other.

The radiator may be attached to the lower surface of the bonnet.

Further, when the radiator is attached to the engine room side, the front portion of the radiator is fixed to a cross member extending in the vehicle width direction in front of the engine, and the rear portion is fixed to the vehicle body cowl portion. It

[0011]

According to the present invention, since a radiator such as a radiator of engine cooling water is arranged above the engine, the dimension of the engine room in the front-rear direction is shortened, and the vehicle compartment portion is correspondingly shortened. It becomes possible to lengthen the dimension in the front-back direction. Moreover, since the front overhang can be shortened, not only the degree of freedom in designing the vehicle body is improved, but also the practical minimum turning radius is shortened, which improves the maneuverability of the vehicle.

Further, by mounting the radiator on the lower surface of the bonnet, the serviceability of the engine is improved.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view schematically showing a front portion of an automobile equipped with an embodiment of a vehicle engine cooling device according to the present invention, and FIG. 2 is a plan view thereof.

In the illustrated automobile, the floor panel 2
By the dash panel 4 standing up from the front end of
Inside the vehicle body is a passenger compartment 8 including a driver's seat 6 and an engine compartment 10.
In the engine room 10, an engine 16 that is integrally connected to the transmission 12 and the front wheel differential device 14 is horizontally installed.
It is configured to drive the front wheels 18.

A bonnet 20 whose rear end is pivotally supported by the vehicle body at a fulcrum A is provided above the engine room 10 so as to be openable and closable.
A radiator 22 for engine cooling water and a condenser 24 for an air conditioner are arranged near the left and right ends of the engine room 10 in a space between the engine cooling water 6 and the engine cooling water.

The radiator 22 and the condenser 24
Are arranged so as to incline toward the front lower side, and electric forced cooling fans 26 and 28 for radiators are fixed on the upper surfaces of the radiator 22 and the condenser 24 so as to closely face each other, and the bonnet 20 And the radiator 22, and between the bonnet 20 and the condenser 24, respectively.

The radiator 22 and the condenser 24
As shown in FIG. 3, each rear portion of the radiator 2 is fixed to a vehicle body cowl portion 32 that forms a coupling portion between the upper end portion of the dash panel 4 and the windshield 30, and the radiator 2
2 and the front portion of the condenser 24 are connected to the radiator 2
In a vehicle body provided with 2 at the front end of the engine room 10, a cross member 34 generally called a shroud upper
It is fixed to each.

Instead of fixing the radiator 22 and the condenser 24 to the vehicle body side as described above, the radiator 22 and the condenser 24 may be fixed to the back surface of the bonnet 20 as shown in FIG. This configuration is excellent in terms of serviceability to the engine.

On the other hand, the air conditioner has a built-in switching door 36 for selecting whether to introduce the intake air into the outside air or to circulate the inside air. The switching unit 38 and the inside / outside air switching unit 38 on the vehicle compartment 8 side of the dash panel 4 are attached to the rear end of the unit 3 and
A blower unit 40 that sucks air into the vehicle 8 and blows the air into the passenger compartment 8, an evaporator 42 that exchanges heat of the blown air during cooling, a heater core 44 that circulates engine cooling water and acts as a heater, Evaporator 42
And an air mix door 46 for branching the air that has passed through to the heater core 44.

The evaporator 42, the heater core 44, and the air mix door 46 are housed in a recess formed in the floor panel 2 and are arranged below the surface of the floor panel 2, and the passenger compartment 8 A duct 48 accommodating the evaporator 42, the air mix door 46 and the heater core 44 is formed in a U shape between the air conditioning air outlet (not shown) formed in the instrument panel 51 at the front end and the blower unit 40. Has been formed.

A fresh air duct 50 extending in the front-rear direction is fixed to the rear surface of the bonnet 20 at a substantially central position in the vehicle width direction. The rear end of the duct 50 is connected to the front end of the inside / outside air switching unit 38 at a position between the radiator 22 and the condenser 24 as the bonnet 20 is closed. Therefore, in the case of the configuration shown in FIG. 4, the radiator 22, the fresh air duct 50, and the condenser 2 are arranged with the fresh air duct 50 at the center, as shown in FIG.
4 and 4 will be installed side by side on the back surface of the hood 20. Fresh air is introduced into the duct 50 from a grill (not shown) formed at the front end of the bonnet 20.

With such an arrangement of the air conditioner, the cowl box provided with the opening of the fresh air duct in the conventional vehicle can be omitted, and the instrument panel can be made compact. Further, the large blower unit 40 can be arranged, and the air conditioning performance is improved. Further, since the evaporator 42 and the like are arranged on the lower side of the floor panel 2 surface, the storage portion 49 can be formed in the duct of the floor panel 2 to form an underfloor cool box.

6 and 7 show the radiator 2 described above.
2A and 2B are a side view and a plan view schematically showing an embodiment in which the capacitor 24 and the capacitor 24 are arranged in a central portion in a vehicle width direction of the engine room 10 in an overlapping state.

In this embodiment, the suspension towers 52, 52 provided on both the left and right sides of the engine room 10
In between, a reinforcing member 54 called a strut bar is bridged, and the rear portion of the superposed body of the radiator 22 and the condenser 24 is fixed on the reinforcing member 54. Further, the front portion of the superposed body is fixed to a frame member 34 called a shroud upper similar to the above-mentioned embodiment.

Further, in this embodiment, a fresh air duct 50 'whose base is fixedly connected to the side of the inside / outside air switching unit 38 is arranged above one suspension tower 52 so as to extend in the vehicle width direction. The front end of the fresh air duct 50 'is located in the engine room 1
Fresh air is introduced from the outside of the engine room 10 through a side panel 56 called a wheel apron that forms a side wall of 0.

As is apparent from the above description, the radiator 22 and the capacitor 24 are used in any of the embodiments.
Is disposed above the engine 16, the dimension of the engine room 10 in the front-rear direction is shortened, and the dimension of the vehicle compartment 8 in the front-rear direction can be lengthened accordingly. Moreover,
Since the front overhang can be shortened, the practical minimum turning radius is also shortened, and the maneuverability of the vehicle is improved.

[Brief description of drawings]

FIG. 1 is a side view schematically showing a front portion of an automobile equipped with an embodiment of a vehicle engine cooling device according to the present invention.

[FIG. 2] The same plan view

FIG. 3 is a side view showing an example of a radiator and condenser mounting structure.

FIG. 4 is a side view showing another example of a radiator and condenser mounting structure.

5 is a perspective view of the configuration of FIG. 4 seen from the back side of the hood.

FIG. 6 is a side view schematically showing a front portion of an automobile including another embodiment of the vehicle engine cooling device according to the present invention.

[FIG. 7] The same plan view

[Explanation of symbols]

 2 Floor panel 4 Dash panel 8 Vehicle compartment 10 Engine room 16 Engine 20 Bonnet 22 Radiator 24 Condenser 26, 28 Forced cooling fan 38 Internal / external air switching unit 40 Blower unit 42 Evaporator 44 Heater core 50 Fresh air duct

Claims (6)

[Claims] 1. In a vehicle having an engine room equipped with an openable and closable bonnet above the engine in front of a driver's seat, a radiator including an engine cooling water radiator is provided inside the engine room. A forced cooling fan for the radiator is disposed in the space between the engine and the bonnet, above the engine and in close proximity to the radiator. A vehicle engine cooling device characterized by the above. 2. The engine cooling device for a vehicle according to claim 1, wherein the radiator and the forced cooling fan are arranged so as to be inclined downward to the front. 3. The vehicle engine cooling device according to claim 1, wherein a plurality of radiators are provided, and the plurality of radiators are arranged on substantially the same plane. 4. The engine cooling device for a vehicle according to claim 1, wherein a plurality of radiators are provided, and the plurality of radiators are arranged so as to overlap each other. 5. The engine cooling device for a vehicle according to claim 1, wherein the radiator is attached to a lower surface of the bonnet. 6. The front portion of the radiator is fixed to a cross member extending in the vehicle width direction in front of the engine, and the rear portion of the radiator is fixed to a vehicle body cowl portion. 1. The vehicle engine cooling device according to 1.