JPH044899Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an air intake device for an automobile engine.

(Prior art) Regarding the intake system of an automobile engine, the U.S. Pat.
Publication No. 43213 describes a structure in which an intake duct connected to an engine air cleaner penetrates a radiator support panel at the front end of the engine room and projects forward. Although such a structure is good when the front of the radiator support panel is empty, it is difficult to adopt it when a headlamp or the like is arranged immediately in front of the support panel.

On the other hand, the tip of the intake duct is placed above the radiator so that the intake port faces forward from above the radiator, and an intake introduction path is formed between the radiator support member in front of the radiator and the bonnet. A proposal to do so is known (see Japanese Patent Laid-Open No. 192618/1983).

However, in that case, there is an air gap between the intake duct and the bonnet above the radiator to avoid mutual interference when the bonnet is closed.
It is necessary to provide As a result, the position of the bonnet becomes high, making it difficult to reduce air resistance when the vehicle is running. In addition, the hot air in the engine room flows from the air to the front of the intake duct, and relatively high temperature air is drawn in, making it difficult to reduce the intake air temperature.

(Problem to be solved by the invention) The problem of the invention is to keep the height of the bonnet low and to suppress the rise in intake air temperature when adopting the above-mentioned method of introducing intake air into the air cleaner from above the radiator. It is in.

(Means for solving the problem) The present invention solves this problem by providing an open part that opens upward at the tip of the intake duct, and using this intake duct and a reinforcement panel on the inner surface of the bonnet. , which forms an intake air passageway that can avoid hot air from being drawn into the engine room.

Specifically, the specific means for this purpose includes: an engine air cleaner placed behind the radiator in the engine compartment covered by the hood of the automobile; and a tip extending from the air cleaner and passing above the radiator. an intake duct that protrudes forward and has an open portion having a U-shaped planar shape that is notched at the top of the portion from the upper portion of the radiator to the tip thereof and opens upward; and an intake duct provided on the inner surface of the bonnet. , a reinforcement panel that reinforces the bonnet, covers the open part of the intake duct when the bonnet is closed, and forms an intake introduction path together with the intake duct; and the open part of the intake duct when the bonnet is closed. This is an air intake device for an automobile engine, comprising a sealing member that seals between the U-shaped peripheral edge of the reinforcement panel and the reinforcement panel.

(Function) In the above-mentioned intake system, in the upper part of the radiator, the intake air introduction path is formed by the open part of the intake duct and the reinforcement panel on the inner surface of the bonnet, so that there is a gap between the reinforcement of the bonnet and the intake duct. Since there is no need for an air gap to avoid mutual interference, the height of the bonnet can be reduced accordingly. Since the intake air introduction passage is sealed by a sealing member between the U-shaped peripheral edge of the open portion of the intake duct and the reinforcement panel of the bonnet, the hot air in the engine compartment is sealed by the sealing member. Therefore, the cold outside air from the front of the car is mainly sucked in.

(Effect of the invention) Therefore, according to the invention, while passing the intake duct above the radiator, the upper part of the radiator from the upper part to the tip is cut out to form an upwardly open part, and the inner surface of the bonnet is opened. An air intake introduction path is formed together with the reinforcement panel, and a seal member is used to seal between the U-shaped peripheral edge of the open portion of the intake duct and the reinforcement panel.
By lowering the height of the bonnet, it is possible to reduce air resistance when the vehicle is running, and it is also possible to suppress a rise in intake air temperature.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

Figure 1 shows the front structure of an automobile in longitudinal section. In the figure, 1 indicates the engine compartment 2.
3 is a radiator for heat exchange of engine cooling water; 4 is a bonnet that covers the engine room 2;

From the air cleaner 1, as shown in Fig. 2,
An intake duct 5 extends over and in front of the radiator 3. The intake duct 5 has an open part 6 which is cut out at the top of the radiator 3 and has a U-shaped planar shape. A flange 7 projecting outward is formed at the front and rear portions of the intake duct 5, and a mounting piece 8 extends forward from the front end of the bottom surface of the intake duct 5. Fixed.

A reinforcement panel 10 for reinforcing the bonnet 4 is attached to the inner surface of the bonnet 4, and this reinforcement panel 10 protects the open portion 6 of the intake duct 5 when the bonnet 4 is closed. It is made to cover. That is, on the lower surface of the reinforcement panel 10, an elastic sealing member (made of urethane) 11 is provided at a position corresponding to the flange 7 of the open portion 6 of the intake duct 5, as shown in FIGS. When the bonnet 4 is closed, the sealing member 11 comes into contact with the flange 7, and the intake duct 5, reinforcement panel 10, and sealing member 11 form an intake introduction path 17 that opens in front of the radiator 3. I will do it.

Further, a heat insulating material 12 is interposed between the lower surface of the intake duct 5 and the upper surface of the radiator 3 to prevent the heat of the radiator 3 from being transmitted to the intake duct 5, and as shown in FIG. A heat insulating material 1 is also provided between the intake duct 5 and the hose 13 (see FIG. 2) that sends cooling water from the radiator to the radiator 3 to prevent heat from the hose 13 from being transmitted to the intake duct 5.
4 is interposed.

In FIG. 2, 15 is a cooling water injection pipe, 16 is a bracket for mounting a bonnet lock member, and 20 is a cooling water injection pipe.
is the engine.

Therefore, in the above-described intake system for an automobile engine, when the bonnet 4 is closed, cold air that has not been heated by the engine, etc. in front of the radiator 3 is introduced into the intake duct 5, and the heat insulating materials 12 and 14 prevent the radiator 3 and the hose from being heated. 13 and is sucked into the air cleaner 1 without receiving almost any heat. When the bonnet 4 is closed, the reinforcement panel 10 constitutes a part of the intake air introduction passage 17, so there is no need to provide an extra air space above the intake air introduction passage 17, and the bonnet 4
By lowering the top surface of the vehicle and lowering the nose of the vehicle, air resistance during driving can be reduced.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal sectional view of the front of an automobile body, FIG. 2 is a perspective view of the front of the vehicle with the bonnet removed, and FIG. 3 is a view similar to that shown in FIG. FIG. 4 is a partially sectional side view showing the relationship between the intake duct and the cooling water hose. 1... Air cleaner, 2... Engine room,
3...Radiator, 4...Bonnet, 5...Intake duct, 6...Open portion, 10...Reinforcement panel, 11...Seal member, 17...
Intake introduction path.

Claims (1)

[Scope of Claim for Utility Model Registration] An engine air cleaner located behind a radiator in an engine compartment covered by the bonnet of an automobile, and an engine air cleaner extending from the air cleaner and passing above the radiator with its tip forward. an intake duct that protrudes from the upper part of the radiator to the tip, and has an open part having a U-shaped planar shape that opens upward by notching the upper part of the part extending from the upper part of the radiator to the tip; A reinforcement panel that reinforces the bonnet, covers the open part of the intake duct when the bonnet is closed, and forms an intake passage together with the intake duct; An intake device for an automobile engine, comprising: a sealing member that seals between a character-shaped peripheral portion and the reinforcement panel.