JP2003104241A - Air intake structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent air intake noise and a direct hit of water and mud and to provide an air intake structure securing air intake into a space within a fender. SOLUTION: In an air intake structure in a fender, there is disposed an air intake duct 5 which takes air into an engine in a space 4 formed by enclosing with a fender 1, a fender liner 2 and a fender apron 3. The fender liner 2 comprises a double layer structure forming a curved air passage 7. An air flow hole 8 communicated with the air passage 7 is formed at a first layer of a surface on a tire side, and one end of the air passage 7 is opened 9 at a detached lower place than the air intake duct 5 within the open space 4 which is formed by enclosing the fender 1, the fender liner 2 and the fender apron 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intake structure for a fender.

[0002]

2. Description of the Related Art Conventionally, an intake structure for a fender in which an air intake duct for intake to an engine is arranged in a space surrounded by a fender, a fender liner, and a fender apron is disclosed in, for example, Japanese Patent Laid-Open No. 9-58279. It is published in.

[0003]

The air intake structure in the fender as described above sucks the air in the space surrounded by the fender, the fender liner, and the fender apron by the air intake duct. Outside air is taken into the space through the gap between the fender, the fender liner, and the fender apron. However,
In recent years, this gap has become smaller, and the velocity of the air entering through the gap may increase, causing intake noise.

The object of the present invention is to prevent intake noise, water,
An object is to provide an intake structure that prevents direct hitting of mud and ensures intake of air into the space inside the fender.

[0005]

A feature of the present invention for achieving the above object is that it is surrounded by a fender, a fender liner, and a fender apron, as described in claim 1. In an intake structure for a fender in which an air intake duct for intake to an engine is arranged in a space, an upper and lower two-layer structure is formed to form a curved air passage of the fender liner, and the air passage is formed in a lower one layer which is a tire side surface. Is provided in the space defined by the fender, the fender liner, and the fender apron, and has a vent hole communicating with the air intake hole.

According to a second aspect of the present invention, there is provided an intake structure for a fender in which an air intake duct for intake to an engine is arranged in a space surrounded by a fender, a fender liner and a fender apron. An air intake is provided in the air intake, and a duct that opens at a lower position apart from the air intake duct in a space formed by the lower end surrounded by the fender, the fender liner, and the fender apron is connected to the air intake. It is characterized by having done.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

[Embodiment 1] FIG. 1 is a diagram in which Embodiment 1 and Embodiment 2 of the present invention are combined. In FIGS. 1 and 2, reference numeral 4 is a space surrounded by the fender 1, the fender liner 2, and the fender apron 3. An air intake duct 5 that is sucked into the engine is arranged in the space 4.

In the first embodiment of the present invention, in the above structure, the fender liner 2 has an upper and lower two-layer structure forming a curved air passage, and the air passage is formed in one layer below the side surface of the tire of the two-layer structure. A ventilation hole communicating with the air passage is provided, and an opening 9 is formed at a lower position apart from the air intake duct 5 in a space 4 formed by surrounding one end of the air passage with the fender 1, the fender liner 2 and the fender apron 3. It was done. Reference numeral 3a indicates a reinforcing member of the fender apron 3.

Various specific embodiments of the first embodiment will be described.

First Embodiment As shown in FIGS. 1 and 2, the first embodiment has a curved fender liner 2 as one layer and a box-shaped cross-section member 6 as another layer on the upper surface of the fender liner 2 as two layers. An air passage 7 is formed between the fender liner 2 and the fender liner 2 and is fixed along the curved surface of the fender liner 2. The fender liner 2 is provided with a ventilation hole 8 communicating with the air passage 7. A space 4 surrounded by a fender 1, a fender liner 2 and a fender apron 3
It has a structure in which an opening 9 is provided at a lower position apart from the air intake duct 5 inside.

[0010]

Second Embodiment In a second embodiment, as shown in FIG. 3, a curved member 6a, which is a separate member, is fixed to a part of the fender liner 2 so as to be continuous with the basic curved line of the fender liner 1. As a layer, a part 2a of the fender liner 2 is recessed on the upper surface of the curved member 6a along the curved surface of the curved member 6a to form an air passage 7 between the curved member 6a and the curved member 6a. A ventilation hole 8 communicating with the air passage 7 is provided, and one end lower part of the air passage 7 is provided with a fender 1 and a fender liner 2.
The space 9 is surrounded by the fender apron 3 and has an opening 9 at a lower position apart from the air intake duct 5 in the space 4.

[0011]

Third Embodiment As shown in FIG. 4, the third embodiment has the same basic structure as that of the first embodiment, but the ventilation hole 8 communicating with the air passage 7 provided in the fender liner 2 has a fender liner 2. This is a structure in which the fin 10 of the return portion is provided by cutting and raising.

In any of the first to third embodiments of the first embodiment, it is preferable that the vent hole 8 is provided at the curved top of the fender liner 2 at a position as high as possible from the water suction.

In any of the first to third embodiments of the first embodiment, the outside air enters the air passage 7 through the ventilation hole 8 through the fender liner 2, and the fender 1 and the fender liner 2 are opened through the lower opening 9 of the air passage 7. The space 4 surrounded by the fender apron 3 enters the space 4 and is sucked by the intake duct 5.

At this time, the outside air is taken into the air passage 7 through the ventilation hole 8 having a larger flow area than the gap between the fender, the fender liner and the fender apron as in the conventional case.
The velocity of the air passing through the ventilation hole 8 does not increase,
This prevents generation of intake noise. Also, ventilation holes 8
Even if more air and water are sucked in, the opening 9 of the air passage 7
Is a lower position in the space 4 separated from the suction port of the air intake duct 5,
The air separated from the water and water can be sucked under the opening 9 of the air passage 7. By providing the ventilation hole 8 on the curved top of the fender liner 2 as high as possible, it is possible to prevent the suction of water.

In the structure of the second embodiment, since both ends of the bending member 6a, which is a separate member, are bonded so as to be wrapped with the fender liner 2, the sealability of the mating surfaces of the one layer and the two layers is different from that of the first embodiment. In addition, the curved member 6a, which is a separate member, has a flat plate shape and is small, so that the workability of the ventilation hole 8 and the like is good.

In the structure of the third embodiment, the ventilation hole 8
Intake noise is reduced by the fins 10 of the return section provided in the part of the section, and of course, water and mud splashing from the tires are prevented from entering the air passage 7, and eventually water and mud to the air intake duct 5 are prevented. Prevent inhalation.

[0017]

[Embodiment 2] As shown in FIG. 1 in combination with Embodiment 1, Embodiment 2 of the present invention is provided with an air intake port 20 in the upper portion of the fender 1 and the lower end in the fender 1 and the fender liner. 2 and the fender apron 3 in the space 4 formed in the space 4 and a duct 21 having an opening 22 at a lower position apart from the air intake duct 5 is provided at the air intake 20.
It is a structure that is bound to.

As an example of means for connecting the duct 21 to the air intake 20, as shown in FIG. 5, the air intake 2
The cover 23 is fixedly installed on the cover 0, and the duct 21
The upper end of is fitted and joined.

In the structure of the second embodiment, the intake noise is refracted and weakened by the air intake 20 and the duct 21, and the air intake 20 exists at a high position above the fender 1. Since it does not suck in water or mud, it is advantageous when driving in water.

[0020]

As described above, according to the present invention, intake noise is prevented and direct hits of water and mud are prevented and air is taken into the space inside the fender in any of the intake structures in the fender of claims 1 and 2. Can be secured. Further, according to the first aspect, the rigidity of the fender is improved because the fender has a two-layer structure. Further, in the second aspect, it can be realized with a simple structure at low cost.

[Brief description of drawings]

FIG. 1 is a side view of a main part of a combination of a first embodiment and a second embodiment of the present invention.

FIG. 2 is a sectional view showing the first embodiment of the first embodiment of the present invention.

FIG. 3 is a sectional view showing the second embodiment of the first embodiment of the present invention.

FIG. 4 is a sectional view showing a third embodiment of the first embodiment of the present invention.

FIG. 5 is a sectional view showing a second embodiment of the present invention.

[Explanation of symbols]

1 fender 2 Fender liners 2a Part of Fender Liner 3 Fender Apron 4 space 5 Air intake duct 6 Box-shaped cross-section members 6a Curved member 7 air passages 8 ventilation holes 9 openings 10 fins 20 Air intake 21 duct 22 opening 23 cover

Claims (2)

[Claims] 1. In a fender intake structure in which an air intake duct for intake to an engine is arranged in a space defined by a fender, a fender liner, and a fender apron, an air passage curved in the fender liner is formed. The upper and lower two-layer structure has a ventilation hole communicating with the air passage in the lower one layer which is a tire side surface, and one end of the air passage is surrounded by a fender, a fender liner, and a fender apron. An air intake structure having an opening at a lower position apart from the air intake duct in the existing space. 2. An air intake structure for a fender in which an air intake duct for sucking into an engine is arranged in a space surrounded by a fender, a fender liner, and a fender apron, and an air intake port is provided above the fender. A duct that opens at a lower position apart from the air intake duct in a space whose lower end is surrounded by the fender, the fender liner, and the fender apron is connected to the air intake port. Intake structure.