JPS62225419A - Cooling device for automobile engine compartment - Google Patents

Abstract

PURPOSE:To make it possible to eliminate the necessity of a space for a fan in an engine compartment and to enhance the cooling efficiency of a cooling device, by disposing a blower fan and a air-blow duct in a bumper adjacent to the engine compartment. CONSTITUTION:A blower fan 13 is disposed in an air-blow duct is formed in the shoulder section of a bumper 4 adjacent to an engine compartment 2. With this arrangement, the outside air 15 is introduced into the duct 12 through the space between a bumper end 4b and a vehicle body 17 when the fan 13 is driven, and is changed in its flowing direction to be blown into the engine compartment 2, and therefore heated air is driven out from the engine compartment 2 through an exhaust system 7. With this arrangement, no extra space is required in the engine compartment, thereby it is possible to enhance the cooling efficiency of the cooling device.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cooling device for an engine compartment of an automobile.

(Prior art) Automobile engines and exhaust system components are housed in the engine compartment, but the hot air generated from the exhaust system components fills the engine compartment, which has a limited sweep, resulting in failure to restart the engine and damage to auxiliary equipment. It starts to cause heat damage. In general, the temperature inside the engine compartment increases significantly after driving uphill in the summer or when the engine is turned off immediately after high-load engine operation, but in recent years, the temperature in the engine compartment has increased significantly. As a result, such problems will occur more and more.

Conventionally, a hot air vent is provided in the engine compartment, and an electric fan is installed in one corner of the engine compartment to exhaust hot air from the engine compartment.
For example, see Utility Model Application Publication No. 59-119918). However, when installing a fan, there is a problem in that it is difficult to find an installation space.

(Object of the Invention) The present invention provides a cooling device for an automobile engine compartment that solves the above-mentioned problems.

(Structure of the Invention) The present invention is a cooling device for an engine room of an automobile, which includes a blower fan and a blower duct for feeding outside air into the engine in a pan/4' adjacent to the engine room.

(Example) The details of the present invention will be described below with reference to an example shown in the drawings.

An engine compartment 2 of an automobile 1 is provided below a rear seat floor 3, and a pan gear 4 is located behind it.

(Although different from this embodiment, the present invention also applies to a vehicle in which the engine compartment is provided at the front of the vehicle body and a bumper is located in front of the engine compartment.) 7
(exhaust pipe 8, exhaust muffler 9, etc.) are arranged.

The pants 4 also have a ventilation duct 12 in the shoulder portion 4a.
An electric fan 13 for blowing air is installed inside the duct 12.

When the electric fan 13 is turned, the outside air 15 is sent into the duct 12 through the gap 18 between the end 4b in the vehicle width direction of the pants or 40 and the vehicle body 17, and the air 15 is sent into the duct 12 through the gap 18 between the end 4b in the vehicle width direction and the vehicle body 17. When it hits the regulator 20 (located in the center of the bumper 4), the direction changes and the air blows out into the engine compartment 2. The hot air n generated from the exhaust system member 7 is pushed out by this blown outside air 15 and is discharged from the engine compartment 2 to the side of the vehicle body 17. The room is then cooled.

The engine compartment 2 is provided with a thermoswitch (not shown) that automatically detects the indoor temperature, and the electric fan 13 is automatically started and stopped depending on the reading. That is, when the engine compartment 2 is filled with hot air 4, the electric fan 3 automatically rotates to push out the hot air 4, and when this is exhausted, the fan 13 automatically stops.

(Effects of the Invention) The present invention is constructed as described above, and utilizes the space inside the pan 2, which was conventionally a dead space, and provides a blower fan and a blower duct there. In other words, compared to the conventional engine compartment that simply had a hot air vent hole, this prevents failure to restart the engine and heat damage to auxiliary equipment due to hot air. Compared to the previous model, the problem of requiring installation swiss is solved.

In the summer, when the engine switch is turned off after driving on a hill, or immediately after high-load engine operation, or when driving at a slow pace in traffic jams, the temperature rise in the engine compartment can be automatically suppressed and the interior cooling system can be reduced. can be achieved.

Furthermore, since the ventilation duct is provided inside the pan P, there is also the advantage that the temperature of the bumper itself is prevented from rising.

[Brief explanation of drawings]

The drawings show an embodiment of the invention, and FIG. 1 is a side view of the automobile, FIG. 2 is an enlarged side view of section A in FIG. 1, and p! Figure rJ3 is a plan view of the engine compartment, and Figure 4 is an enlarged cross-sectional view taken along line BB in Figure 3. 2...Engine room, 4...Pants mother, 6...Engine, 7...Exhaust system members, 12...Blower duct, 13.・
...Electric fan, 15...Outside air,
n...Hot air. Patent applicant Fuji Heavy Industries Ltd. @Figure 1 Figure 2

Claims (1)

[Claims] A cooling device for an engine compartment of an automobile, characterized in that a blower fan and a ventilation duct for sending outside air into the engine compartment are provided in a bumper adjacent to the engine compartment.