JPH0537695Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a device for introducing outside air to an air cleaner disposed in the engine room of an automobile using an intake duct.

Prior Art A conventional device of this kind is, for example, one shown in FIG. Reference numeral 1 in the figure is an air cleaner disposed in the engine room R, and the air cleaner 1 supplies purified outside air to an engine (not shown). This air cleaner 1 is connected to an intake duct 2 that guides outside air to this point. This intake duct 2 extends from the air cleaner 1 inside the engine room R toward the front of the vehicle, and has a tip 2a that passes through a radiator core support 3 that forms the front wall of the engine room R and faces outside the vehicle. An intake port 2b formed in the portion 2a is opened between the radiator core support 3 and the bumper 4.

Furthermore, a water shielding plate 5 is disposed near the lower side of the tip 2a of the intake duct 2 to prevent water splashed up from the road surface from entering through the intake port 2b.

In the figure, reference numeral 6 is a hood, 7 is a headlamp, 8 is a hood storage, and 9 is a fender protector.

Other examples of this kind include the 82212
There is something like the one described in the publication.

Problems to be Solved by the Invention However, in the case of such a conventional device, it is necessary to arrange the water shield plate 5 to prevent water from entering through the intake port 2b of the intake duct 2, and the installation work is difficult. It takes time and effort to do this, and it also increases costs.
In order to enlarge the opening area of the intake port 2b, the water shielding plate 5 must be enlarged accordingly.As a result, the opening area of the intake port 2b cannot be increased that much, so the ventilation resistance is relatively low. The problem is that it gets bigger.

Means for Solving the Problems This invention was devised by focusing on the problems of the conventional technology. The front end of the intake duct is located near the rear surface of the bumper, and the intake port formed at the front end of the intake duct is opened above the upper surface of the bumper armature and near the back surface of the vertical wall of the bumper faceia. It is characterized by being an introduction device.

Effect: According to this means, by opening the intake port of the intake duct above the upper surface of the bumper armature, even if water splashes from the road surface while the vehicle is running, this existing bumper armature can be opened. Therefore, there is no need to separately install a water shielding plate as in the past, which simplifies the installation work and contributes to cost reduction.

Furthermore, since water is blocked by the bumper armature that is disposed over substantially the entire width in the vehicle width direction, the intake port of the intake duct can be enlarged to follow the shape of the back surface of the bumper face. As a result, when introducing outside air, the ventilation resistance can be reduced compared to the conventional case, and the filling efficiency of the engine can be improved.

Example This invention will be explained below based on examples.

1 to 3 illustrate an embodiment of this invention.

First, to explain the configuration, reference numeral 11 in the figure is an air cleaner for supplying clean outside air to the engine (not shown).This air cleaner 11 is located near the hood storage 12, which is the side wall of the engine room R, as shown in FIG. , are arranged on the rear side of the battery 13. This air cleaner 11 is connected to an intake duct 14 that guides outside air.

The intake duct 14 extends from the air cleaner 11 toward the front of the vehicle inside the engine room R, passes through the radiator core support 15, and extends to the outside of the vehicle. There is.

The intake port 14b formed at the tip 14a of the intake duct 14 is opened above the upper surface 17a of the armature 17 of the bumper 16 and near the back surface of the vertical wall 18a of the bumper face 18. As shown in FIG. 3, this tip portion 14a is designed to increase the opening area of the intake port 14b.
It is formed in a so-called latspa shape.

In the vertical wall portion 18a of the bumper face 18 facing the intake port 14b of the intake duct 14,
An opening 18b is formed in the intake port 14b for sucking outside air. This opening 18b
has a louver shape and is formed to prevent water from entering through the intake port 14b of the intake duct 14.

In the figure, reference numeral 19 is a hood, 20 is a headlamp, and 21 is a fender protector.

Next, the operation of the outside air introduction device having such a configuration will be explained.

While the engine is starting, the outside air
The air enters from the intake port 14b of the intake duct 14 through the opening 18b of No. 8, and is led to the air cleaner 11 via the duct 14. The air cleaner 11 cleans the outside air and supplies it to the engine. In this way, by supplying the engine with low-temperature outside air instead of the high-temperature air in the engine room R, the filling efficiency of the engine is improved.

Further, by opening the intake port 14b of the intake duct 14 above the upper surface portion 17a of the bumper armature 17, water splashed up from the road surface by the armature 17 can be blocked.
In this way, by using the existing bumper 16, it is possible to block water with a very simple structure, so there is no need to separately install a water blocking plate 5 as in the past, so the installation work can be simplified. This not only improves performance but also contributes to cost reduction.

Furthermore, since the bumper armature 17 is disposed over substantially the entire width in the vehicle width direction, the intake port 14
Even if b is expanded along this armature 17,
This armature 17 can prevent water from entering through the intake port 14b. Therefore, intake port 1
Since the ventilation resistance can be reduced by enlarging 4b, the filling efficiency of the engine can be improved.

Furthermore, the vertical wall portion 1 of the bumper face 18
8a is formed with an opening 18b, and this opening 18
Since the outside air is allowed to directly flow into the intake port 14b through the air inlet 14b, the intake port 14b can be brought closer to the vertical wall portion 18b, thereby further improving water-blocking properties.

Effects of the invention As explained above, according to this invention,
By extending the tip of the intake duct to near the rear surface of the bumper and opening the intake port at the tip above the top of the bumper armature and near the back of the bumper face, it is possible to create a highly efficient system using existing equipment. Since it can block water splashing from the road surface with a simple structure, there is no need to install a separate water shield plate as in the past, simplifying the installation work and reducing costs. . In addition, since the intake port of the intake duct can be enlarged to follow the shape of the back of the bumper face, when supplying outside air to the engine, ventilation resistance can be reduced compared to before, improving engine filling efficiency. It has the practical effect of being able to do the following.

[Brief explanation of the drawing]

Figures 1 to 3 are views showing an embodiment of this invention, in which Figure 1 is a sectional view taken along the - line in Figure 2, Figure 2 is a perspective view showing a corner of the front of the automobile, FIG. 3 is a plan view schematically showing the arrangement of the intake duct, etc., and FIG. 4 is a sectional view corresponding to FIG. 1 showing a conventional example. 11...Air cleaner, 14...Intake duct,
14a...Tip, 14b...Intake port, 16...
Bumper, 17...Bumper armature, 17a...
...Top surface part, 18...Bumper face, 18a...
...Vertical wall section, R...Engine room.

Claims (1)

[Scope of utility model registration request] An intake duct is extended toward the front of the vehicle from an air cleaner installed in the engine room, and the tip of the intake duct is located near the back of the bumper, and the intake port formed at the tip of the intake duct is connected to the bumper. An outside air introduction device for an automobile, characterized in that the opening is opened above the upper surface of the gusset and near the back surface of the vertical wall of the bumper face.