JPH0434097Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is an automobile that improves aerodynamic characteristics by discharging the engine cooling air supplied to the radiator to the outside from an air outlet provided in the car body. This relates to the engine cooling air exhaust structure.

(Prior Art) As a vehicle equipped with this type of vehicle engine cooling air exhaust structure, there are conventional vehicles such as those shown in FIGS. 6 to 8, for example. (Jitsukai 57-
(Refer to Publication No. 139479) In the automobile shown in FIG. It is designed to be discharged upward from the discharge port 5a.

In addition, in the automobile shown in FIG. 7, the engine cooling air introduced from the front of the vehicle body 1 is
Pass through the radiator 2 and enter the engine room 7.
After flowing into the interior, the air is discharged to the side through a gap 10 between the tire 8 and the wind guide slope 9.

Furthermore, the automobile shown in FIG. 8 has a radiator 11 and a fan 1 for forced exhaust at the rear of the vehicle body.
2 is provided, and by operating the fan 12, engine cooling air is introduced into the radiator 11 from the rear side of the vehicle body 1 as shown by an arrow 13, and then discharged rearward.

(Problems to be solved by the invention) However, in the case shown in FIG. 6, since the air guide plate 4 is arranged in the engine room 1a, the effective space in the engine room 1a is reduced. There was a problem.

Furthermore, in order to improve the aerodynamic characteristics of the vehicle shown in FIG. 7, it is necessary to reduce the gap 10 between the tire 8 and the baffle plate 9. However, when the gap 10 is made smaller, the flow rate of engine cooling air decreases, resulting in a problem that the engine cooling efficiency by the radiator 2 decreases.

Furthermore, in the structure shown in FIG. 8, since the engine cooling air is introduced from the rear side of the vehicle body 1, the engine cooling air cannot be introduced into the radiator 11 side using the wind pressure caused by driving. The cooling efficiency was poor. Therefore, in order to improve the engine cooling efficiency, it was necessary to increase the size of the radiator and to provide the fan 12. However, in this case, the rear trunk compartment 14
The problem was that the effective space of the vehicle became smaller and the weight of the vehicle increased.

Therefore, this invention provides an engine cooling air exhaust structure for an automobile that can efficiently exhaust engine cooling air aerodynamically without reducing the effective space of the engine room, trunk room, etc. or increasing the weight of the vehicle. The purpose is to

(Means for Solving the Problem) In order to achieve this purpose, this invention creates a fender chamber between the hood storage panel that forms the engine room and the front fender that is disposed outside of this panel. An air inlet port is formed in the hood storage panel to communicate the engine compartment and the fender compartment, and a bulging protrusion is provided at the upper part of the front fender, and an air inlet port is provided at the rear end of the bulging protrusion. Provide an opening that opens toward the rear,
The present invention is characterized in that a fender mirror is mounted within the opening, and an air exhaust port is provided between the inner surface of the opening and the fender mirror.

(Function) According to this configuration, a part of the engine cooling air introduced into the engine room from the front grille at the front of the vehicle passes through the radiator and then flows to the side in the engine room due to the wind pressure. .

On the other hand, as the vehicle travels, some of the air flows backward over the hood of the vehicle body, and then flows toward the rear of the side of the vehicle body along the bulging protrusion without escaping to the side surface of the front fender. At this time, this air forms a rear vortex behind the bulging protrusion, thereby forming a negative pressure region behind the bulging protrusion. This negative pressure sucks the air inside the fender chamber backwards, so some of the engine cooling air flowing into the engine compartment is sucked toward the rear side of the bulge due to the negative pressure generated behind the bulge. That will happen. A portion of the engine cooling air sucked toward the rear side of the bulging protrusion reduces the generation of rear vortices.

As a result, the engine cooling air flowing into the engine compartment flows into the fender compartment from the air inlet of the hood storage panel due to the wind pressure of the vehicle and the negative pressure generated behind the bulging protrusion.
The air is discharged smoothly and efficiently toward the rear from the air outlet formed between the side mirror and the inner surface of the opening of the bulge, and the separation of air around the front pillar can be reduced, reducing the air resistance of the vehicle body. This can improve aerodynamic performance.

(Example) Hereinafter, an example of this invention will be described based on FIGS. 1 to 5.

In FIGS. 1 and 2, 15 is the body of an automobile. Further, in FIG. 3, 16 is an engine room at the front of the vehicle body, and 17 is a hood that covers the upper part of the engine room 16. Furthermore, in FIG. 1, 18 is a radiator disposed at the front end of the engine room 16.

Further, in FIG. 3, 19 is a front wheel house of the vehicle body 15, 20 is a hood storage panel that extends upward and is fixed to the front wheel house 19, and 21 is a hood storage panel whose upper end is fixed to the upper end of the hood storage panel 20. Front fender, 22 is front fender 21 and front wheel house 1
This is the fender chamber formed between 9 and 9.

The fender compartment 22 and the engine compartment 16 are separated by a hood storage panel 20.
As shown in FIGS. 1 and 4, an air inlet 23 is formed in a portion forward of the center of the hood storage panel 20, which communicates the engine room 16 with the fender chamber 22.

A bulging protrusion 24 extending back and forth is formed on the rear upper side of the front fender 21 mentioned above. This bulging protrusion 24 is provided with an opening 25 that opens toward the rear, and a side mirror 26 is disposed in this opening 25 as shown in FIGS. 3 to 5. The side mirror 26 is attached to the lower wall 25a of the opening 25, and an air outlet 27 is formed between the peripheral edge of the side mirror 26 and the inner surface of the opening 25.

Next, the operation of the engine cooling air exhaust structure for an automobile having such a configuration will be explained.

According to such a configuration, a part of the engine cooling air introduced into the engine room 16 from the front grill (not shown) at the front of the vehicle body 15 passes through the radiator 18 as shown by arrow A, and then the air pressure is increased. and flows laterally within the engine room 16.

On the other hand, as the vehicle travels, some of the air flows into the vehicle body 1.
After flowing backward over the hood 17 of No. 5, it flows toward the rear of the side of the vehicle body along the bulging protrusion 24 without escaping to the side of the front fender 21. At this time, this air forms a rear vortex 28 behind the bulging protrusion 24 and forms a negative pressure region 29 behind the bulging protrusion 24 . This negative pressure sucks the air inside the fender chamber 22 backwards, so that part of the engine cooling air flowing into the engine room 16 is caused by the negative pressure generated behind the bulging projection 24 . It will be sucked to the rear. A portion of the engine cooling air sucked toward the rear side of the bulging protrusion 24 reduces the generation of the rear vortex 28.

As a result, the engine cooling air flowing into the engine compartment 16 flows from the air inlet 23 of the hood storage panel 20 to the fender compartment 22 due to the wind pressure when the vehicle is running and the negative pressure generated behind the bulging protrusion 24. After flowing into the interior, the air is smoothly and efficiently discharged toward the rear of the air outlet 25 formed between the side mirror 26 and the inner surface of the opening 25 of the bulging protrusion 24, as shown in FIG. At the same time, separation of air around the front pillar can be reduced, reducing air resistance of the vehicle body and improving aerodynamic performance.

In addition, in this embodiment, in order to allow the engine cooling air flowing into the engine room 16 to pass through the air outlet 25 formed between the side mirror 26 and the inner surface of the opening surface 25 of the bulging protrusion 24, the side mirror It is also possible to effectively remove water droplets and cloudiness attached to the surface of 26.

In addition, the air in the fender chamber 22 is discharged through a gap between the fender chamber 22 and the front door, a discharge port provided at the bottom of the front fender 21, and at the front wheel. Although it is possible to configure the
If the air is discharged through the gap between the front fender 21 and the front door, the gap becomes smaller and the flow rate of engine cooling air decreases, as shown in FIG. In addition, if an exhaust port is provided at the rear of the front wheel and air is discharged through this exhaust port, it is possible to prevent separation that occurs around the center pillar, which can cause problems with the aerodynamic performance of the vehicle body. It does not bring about any improvement effect.

(Effect of the invention) As explained above, this invention forms a fender room between the hood storage panel that forms the engine room and the front fender disposed outside of this, and An air inlet for communicating between the front fender and the fender chamber is formed in the hood storage panel, and a bulging protrusion is provided at the upper part of the front fender, and the bulging protrusion opens rearward at the rear end thereof. Since an opening is provided, the fender mirror is mounted within the opening, and an air outlet is provided between the inner surface of the opening and the fender mirror, the effective space such as the engine room and trunk room is reduced. The engine cooling air can be efficiently discharged aerodynamically by using the running wind pressure and the negative pressure generated by the running wind, without increasing the vehicle weight.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an automobile equipped with an engine cooling air discharge structure according to this invention, Fig. 2 is a plan view of the main part of Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 1, and Fig. 4 The figure is a sectional view taken along the - line in Fig. 1, Fig. 5 is a sectional view taken along the - line in Fig. 4, and Figs.
FIG. 8 is a schematic explanatory diagram of an automobile equipped with a conventional engine cooling air exhaust structure. 15...Vehicle body, 16...Engine room, 18
...Radiator, 19...Front wheel house, 20...Hood storage panel, 21...Front fender, 22...Fender compartment, 23...
...Air inlet, 24...Bulging protrusion, 25...Opening, 26...Side mirror, 27...Air outlet, 28...Backward vortex, 29...Negative pressure area.

Claims (1)

[Scope of utility model registration request] A fender chamber is formed between a hood storage panel forming an engine room and a front fender disposed outwardly, and an air inlet for communicating the engine room and the fender chamber is connected to the hood storage panel. A bulging protrusion is provided at the top of the front fender, an opening opening toward the rear is provided at the rear end of the bulging protrusion, and a fender mirror is mounted within the opening. An engine cooling air discharge structure for an automobile, characterized in that an air discharge port is provided between the inner surface of the opening and the fender mirror.