JPS6123606Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automobile cooling device for cooling a radiator of an automobile.

Generally, in an automobile, a radiator is provided in front of the engine, and a propeller fan for suction is provided between the engine and the radiator, and the rotation of the propeller fan sucks in air to cool the radiator.

However, since the crossflow fan is installed in the center of the shroud, there is no problem when the performance of the crossflow fan exceeds the vehicle speed wind (ram pressure), such as when driving at low speeds, but at high speeds If the ram pressure exceeds the performance of the crossflow fan during driving, the wind pressure inside the shroud increases, causing the problem that the cooling capacity of the radiator is insufficient.

That is, as shown in FIG.
A propeller fan 3 connected to the rotating shaft of the engine 2 is provided between the engine 2 and the engine 2. The propeller fan 3 is located in the center of a shroud 4. Obstruct the flow of wind.

In this way, if the wind pressure caused by the vehicle speed cannot be used effectively, it is necessary to make the propeller fan 3 large in capacity so that it does not become a resistance to the vehicle speed wind.
This will consume a large amount of horsepower.

As shown in Figure 1, when the propeller fan 3 is used as a suction type, the above-mentioned phenomenon is simply difficult to avoid, and when the ram pressure exceeds the capacity of the propeller fan, the orifice of the shroud 4 opens. There is a drawback that a complicated mechanism must be added to prevent the airflow passing through the radiator from concentrating on the propeller fan 3.

In view of these points, the present invention has been developed to provide a cooling system for automobiles that does not prevent ram pressure from passing through the radiator even when driving at high speeds, and that can efficiently cool the radiator by sending the necessary cooling air to the radiator. The purpose is to provide equipment.

In order to achieve the above object, the present invention provides a cooling system for an automobile that blows air into the radiator of the automobile to cool the engine cooling water in the radiator. It is characterized by the installation of a blower or cross-flow fan.

By employing such a means, the air necessary for cooling can be blown toward the radiator by utilizing the high wind pressure and directionality characteristic of the centrifugal blower.

Embodiments of the present invention will be described below with reference to FIGS. 2 to 5.

In FIG. 2, an engine 6 is mounted on the front of a vehicle body 5, and a radiator 7 is attached in front of the engine, and the radiator 7 is connected to the engine via an upper pipe 8 and a lower pipe 9. .

At the front lower part of the radiator 7, a centrifugal blower 10 such as, for example, a Sirotskov fan is provided, and as shown in FIGS. Left and right fan bodies 10b, 10
b, and provided in the center of this fan body 10b,
It consists of an electric motor 10c for rotating it.

The centrifugal blower 10 is installed near the back side of the bumper 11 so as not to block the inflow of ram pressure, and the cooling air from the centrifugal blower 10 hits the radiator 7 obliquely from below. The passing force (air permeability) of the radiator of the cooling air applied in a directional manner is significantly larger than that of a conventional suction type propeller fan.

When the car is stopped, for example in an idling state, the radiator 7 is cooled only by the cooling air from the centrifugal blower 10, but the centrifugal blower is of a high air pressure type and does not have enough air to cool the radiator. It is possible to send air into the radiator 7.

Further, when the automobile is running, the ram pressure applied from the front of the radiator 7 and the oblique wind from the centrifugal blower 10 work together to cool the radiator 7.

In this way, if you remove the shroud that obstructs the passage of ram pressure and install the electric centrifugal blower in a position that does not interfere with the flow of vehicle-speed air into the radiator, it can be used even when idling or when driving at high speed. The radiator can be effectively cooled.

In the embodiments shown in FIGS. 2 and 3, the case where the centrifugal blower 10 is installed has been explained.
As shown in FIGS. 4 and 5, a cross-flow fan 12 that discharges air across the diameter of the fan may be installed in the front central part of the radiator 7, and above and below the cross-flow fan 12. Covers 12a, 12a are formed, and the cross flow fan main body 12b is also rotated by the electric motor 12c.

Note that this cooling system is suitable for a flat vehicle structure because the radiator is horizontally long and the centrifugal blower 10 and crossflow fan 12 can be made horizontally long.

Further, a thermostat is installed in the radiator 7, and when the temperature of the engine cooling water is low, for example, 80° C. or lower, the electric motors 10c and 12c are turned off even when the engine is driven, and the engine is turned off. If the electric motors 10c, 12c are automatically turned on when the temperature of the cooling water reaches 80° C. or higher, more efficient cooling can be achieved.

As explained above, the present invention installs a centrifugal blower or a cross flow fan driven by the electric motor in front of the radiator, so there is no need to install a shroud. The passage of air is not obstructed, and the necessary cooling air can be sent to the radiator even during idling.
This has the effect of enabling efficient cooling.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a conventional cooling device for an automobile, FIG. 2 is a schematic diagram of a cooling device for an automobile according to the present invention, FIG. 3 is a plan view of a centrifugal blower according to the present invention, and FIG. Another embodiment of the present invention is shown in FIG. 5, which is a plan view of the cross flow fan shown in FIG. 6...Engine, 7...Radiator, 10...
Centrifugal blower, 12...Cross flow fan.

Claims (1)

[Claims for Utility Model Registration] 1. In an automobile cooling device that blows air into the radiator of the automobile to cool the engine cooling water in the radiator, a centrifugal blower or a crossflow blower driven by an electric motor is installed in front of the radiator. A cooling system for automobiles that is equipped with a fan. 2. The cooling device for an automobile according to claim 1, wherein the centrifugal blower is located at the front lower part of a radiator. 3. The cooling device for an automobile according to claim 1, wherein the cross flow fan is located in front of the center of a radiator. 4. The blower or crossflow fan driven by the electric motor is configured to start when the temperature of the engine cooling water in the radiator is higher than a predetermined temperature. The automotive cooling device according to any one of Item 3.