car

Abstract

To provide a vehicle that can suppress temperature rise of intake air for an engine.SOLUTION: A vehicle 1 includes: a front fender 4 including an intake port 41 that is open on an outside of a vehicle body to take outside air; a fender internal space S2 positioned in an inside of the front fender 4 and into which outside air is taken via the intake port 41; and an engine intake duct 5 that is open to the fender internal space S2. A thermal insulation vibration control sheet 7 is affixed to a rear face 4a of the front fender 4.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This invention relates to an automobile, and more particularly to an engine intake structure around the front fender. [Background technology]

[0002] As an engine intake structure, a fender-intake intake system is known (see Patent Document 1). The fender-intake intake system is an intake system in which outside air is taken into the engine's intake duct via the space between the fender and the body. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2010-255433 [Overview of the project] [Problems that the invention aims to solve]

[0004] However, with the conventional engine intake structure described above, in regions with strong sunlight such as the Middle East, the fenders can heat up due to sunlight, causing the air passing inside the fenders to heat up, which can raise the engine's intake air temperature and potentially reduce the engine's power output efficiency.

[0005] The problem that this invention aims to solve is to provide an automobile that can suppress the rise in engine intake air temperature. [Means for solving the problem]

[0006] This invention solves the above problem by attaching a heat-insulating and vibration-damping sheet to the back surface of the fender. [Effects of the Invention]

[0007] According to the present invention, the heat from sunlight entering the fender is blocked by the heat-insulating and vibration-damping sheet, thereby suppressing the rise in temperature within the fender's interior space. As a result, the temperature rise of the intake air introduced into the engine from the engine intake duct opening into the fender's interior space can be suppressed. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a cross-sectional view showing an embodiment of an automobile according to the present invention. [Figure 2] Figure 2 is a rear view showing an embodiment of the front fender of an automobile according to the present invention. [Modes for carrying out the invention]

[0009] An automobile 1 according to an embodiment of the present invention will be described with reference to the drawings. Figure 1 is a cross-sectional view showing an embodiment of automobile 1 in this embodiment, and is a cross-sectional view along line II in Figure 2. Figure 2 is a rear view showing an embodiment of the front fender 4 of automobile 1 in this embodiment.

[0010] As shown in Figure 1, the automobile 1 in this embodiment is equipped with an engine intake structure 2 of the fender-internal intake type, in which engine intake is performed in the internal space of the fender. In this embodiment, an example is given in which the engine intake duct 5 is provided in the internal space S2 of the front fender 4 located on the right front of the automobile 1. The engine intake structure 2 may also be provided in the internal space of the front fender located on the left front of the automobile 1. Alternatively, this engine intake structure 2 may be provided on both the left and right front sides.

[0011] This engine intake structure 2 includes a hood ridge assembly 3, a front fender 4, an engine intake duct 5, a fender liner 6, a heat insulating and vibration damping sheet 7, and a shielding wall 8. The front fender 4 in this embodiment corresponds to an example of a "fender" in the present invention.

[0012] The hood ridge assembly 3 is a component that forms the frame of the vehicle body of the automobile 1, and is a bulkhead that separates the engine compartment S1 from the fender interior space S2. In this embodiment, the fender interior space S2 is the space enclosed by the hood ridge assembly 3, the front fender 4, and the fender liner 6.

[0013] The hood ridge assembly 3 includes an inner panel 31 located on the engine compartment S1 side and an outer panel 32 located on the fender interior space S2 side. The flange portions of the inner panel 31 and the outer panel 32 are joined to each other by spot welding or the like.

[0014] The upper part of the front fender 4 is fixed to the upper part of the hood ridge assembly 3. The front fender 4 can be fixed, for example, with bolts. The front fender 4 is positioned outward in the vehicle width direction from the hood ridge assembly 3 and covers the outer side in the vehicle width direction of the wheel well where the tire 12 is located. The front fender 4 is also positioned outward in the vehicle width direction from the hood panel 11.

[0015] As shown in Figures 1 and 2, the front fender 4 has an intake port 41. The intake port 41 is a through-hole that penetrates the front fender 4 along its width and opens to the outside of the vehicle body to take in outside air. This intake port 41 is formed on the rearward side of the vehicle body, relative to the center of the front fender 4.

[0016] The engine intake duct 5 is a cylindrical component. This engine intake duct 5 supplies air to the engine by drawing in air taken into the fender internal space S2 through the intake port 41.

[0017] The engine intake duct 5 extends from the engine room S1 to the inner space S2 of the fender and penetrates through the inside of the hood ridge assembly 3. One end of the engine intake duct 5 is connected to an air cleaner (not shown) in the engine room S1, while the other end of the engine intake duct 5 opens into the inner space S2 of the fender.

[0018] Also, as shown in FIG. 2, the engine intake duct 5 is located in front of the intake port 41 in the inner space S2 of the fender. The outside air taken in from the intake port 41 reaches the engine intake duct 5 through the flow path FP in the inner space S2 of the fender. In this embodiment, the air taken into the inner space S2 of the fender flows forward.

[0019] The flow path FP in this embodiment is located between the intake port 41 and the engine intake duct 5 and is surrounded by the hood ridge assembly 3, the front fender 4, the fender liner 6, and a pair of shielding walls 8 in the inner space S2 of the fender. <UNK>

[0020] As shown in FIG. 1, a heat insulation and vibration damping sheet 7 is attached to the back surface 4a (the surface on the vehicle body inner side) of the front fender 4. The heat insulation and vibration damping sheet 7 is not particularly limited and is attached by an adhesive or the like.

[0021] As shown in FIGS. 1 and 2, a heat insulation and vibration damping sheet 7 is attached to the back surface 4a (the surface on the vehicle body inner side) of the front fender 4. The heat insulation and vibration damping sheet 7 is not particularly limited and is attached by an adhesive or the like.

[0022] The heat-insulating and vibration-damping sheet 7 suppresses heat transfer from the front fender 4 to the air in the fender's internal space S2, and also suppresses vibration transfer from the front fender 4 to the air in the fender's internal space S2. While the heat-insulating and vibration-damping sheet 7 is not particularly limited as long as it possesses both heat-insulating and vibration-damping properties, a foamed resin sheet can be used, for example. Specifically, a foamed polyurethane sheet can be used. When a foamed resin sheet such as a foamed polyurethane sheet is used, the air contained within the sheet provides heat insulation, while the overall elasticity of the sheet provides vibration damping.

[0023] The heat-insulating and vibration-damping sheet 7 is attached to almost the entire surface of the back surface 4a of the front fender 4, except for the portion that is fastened to the hood ridge assembly 3 and the fender liner 6. Therefore, in this embodiment, the heat-insulating and vibration-damping sheet 7 is attached to the entire region of the back surface 4a corresponding to the flow path FP.

[0024] On the other hand, the heat-insulating and vibration-damping sheet 7 is attached to areas other than the intake opening 41 and does not cover the intake opening 41. Therefore, the heat-insulating and vibration-damping sheet 7 does not obstruct the intake of outside air through the intake opening 41.

[0025] As shown in Figure 2, a pair of plate-shaped shielding walls 8 (8a, 8b) are provided in the internal space S2 of the fender. The shielding walls 8 are not particularly limited, but resin plates or the like can be used.

[0026] As shown in Figure 1, the shielding wall 8 is provided between the hood ridge assembly 3 and the thermal insulation and vibration isolation sheet 7, and both end faces of the shielding wall 8 are fixed to the hood ridge assembly 3 and the thermal insulation and vibration isolation sheet 7. Both end faces of the shielding wall 8 can be fixed to the hood ridge assembly 3 and the thermal insulation and vibration isolation sheet 7 by, for example, urethane tape.

[0027] As shown in FIG. 2, the shielding wall 8a is provided in front of the engine intake duct 5 in the fender internal space S2. The shielding wall 8a extends from the front of the engine intake duct 5 to above the engine intake duct 5, covering the front and above of the engine intake duct 5. Thereby, the shielding wall 8a shields the engine intake duct 5 from the front space S 2a of the fender internal space S2.

[0028] The front space S 2a is a space adjacent to a headlight (not shown) located in front of the front fender 4, and foreign matters such as water and sand may enter from the headlight side. In particular, since the fender internal space S2 becomes a negative pressure due to the engine intake duct 5, foreign matters are likely to enter the front space S 2a . However, by shielding the engine intake duct 5 from the front space S 2a with the shielding wall 8a, it is possible to suppress the entry of foreign matters into the engine intake duct 5.

[0029] On the other hand, the shielding wall 8b is provided at the rear of the fender internal space S2 and extends horizontally from the rear end of the front fender 4 to the upper surface of the fender liner 6. Thereby, the flow path FP is shielded from the lower space S 2b of the fender internal space S2.

[0030] The lower space S 2a is a space adjacent to the rear of the fender liner 6, and foreign matters lifted by the tire 12 may enter. Also, since this lower space S 2a also becomes a negative pressure like the front space S 2a and foreign matters are likely to enter, but by shielding the flow path FP from the lower space S 2b , it is possible to suppress the entry of foreign matters into the engine intake duct 5.

[0031] As described above, in the automobile 1 of this embodiment, since the heat-insulating and vibration-damping sheet 7 is attached to the back surface 4a of the front fender 4, the heat insulation performance of the fender interior space S2 can be improved. Therefore, even if the front fender 4 generates heat due to sunlight or the like, the rise in the temperature of the air inside the fender interior space S2 can be suppressed, and thus the rise in the engine intake air temperature can be suppressed.

[0032] In particular, in this embodiment, since the entire region of the back surface 4a corresponding to the flow path FP is covered with the heat-insulating vibration-damping sheet 7, the air supplied to the engine through the flow path FP is not directly heated by the fender. Therefore, the rise in the engine intake air temperature can be suppressed.

[0033] Furthermore, in conventional automobile fenders that do not have heat-insulating and vibration-damping sheets attached, the thinner thickness due to weight reduction results in a longer time required for the resonance of the sound produced when the fender is struck to subside. This can give customers a feeling of low quality. In contrast, in automobile 1 of the present invention, since the heat-insulating and vibration-damping sheet 7 is attached to the front fender 4, the time required for the resonance of the sound to subside can be shortened. [Explanation of Symbols]

[0034] 1…Automobile 2…Engine intake structure 3…Food Ridge Assembly 31…Inner panel 32…Outer panel 4…Front fender 41... Intake 5…Engine intake duct 6…Fender Liner 7…Insulation and vibration damping sheet 8(8a,8b)…shielding wall S1...Engine Room S2...Fender interior space S 2a ...front space S 2b ...lower space FP…flow channel 11… Hood panel 12... Tires

Claims

1. A fender having an intake opening on the outside of the vehicle body to take in outside air, Located inside the fender, the fender interior space is through the intake opening into which outside air is drawn in, It includes an engine intake duct that opens into the internal space of the fender, A heat-insulating and vibration-damping sheet is attached to the back surface of the fender. The fender interior space is located between the intake port and the engine intake duct and has a flow path through which outside air taken into the fender interior space flows. The aforementioned heat-insulating and vibration-damping sheet is attached to the entire area on the back surface of the fender that corresponds to the flow path of the automobile.

2. In the automobile described in claim 1, The aforementioned heat-insulating and vibration-damping sheet is attached to the back surface of the fender in an area other than the intake opening of the automobile.

3. In the automobile according to claim 1 or 2, The aforementioned heat-insulating and vibration-damping sheet is a foamed polyurethane sheet for automobiles.

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