JP2006037926A - Outside air introduction structure of engine for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outside air introduction structure of an engine for a vehicle capable of effectively suppressing an outside air heated by a radiator to reache the suction port of an air duct and preventing abnormal noise and damage to a plurality of devices from occurring due to the contact of a baffle plate with a plurality of devices even if the devices are complicatedly disposed in an engine room. <P>SOLUTION: This outside air introduction structure of the engine for the vehicle comprises a backup frame 22 disposed near the suction port 11a of the air duct 11 and a three-dimensionally held baffle plate 21 formed of a flexible material, fitted to the backup frame 22 in the inserted state into the portion of the air duct 11 near the suction port 11a, and roughly dividing a space in the engine room 2 into a space on the radiator 4 side and a space on the suction port 11a side through the backup frame 22. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an outside air introduction structure for a vehicle engine, and more particularly to a structure in the vicinity of a tip portion of an air duct of an engine that opens into an engine room, and belongs to the technical field of a vehicle engine.

  In general, when the intake air temperature rises in the engine, the intake air charging efficiency decreases. To avoid this, it is preferable to provide the intake port of the air duct for introducing the outside air into the engine at a position where the outside air can be introduced as low as possible.

  For example, in a vehicle such as a passenger car in which an engine room is provided in the front part of the vehicle, a position where the traveling wind hits around the grill in the front part of the vehicle can be considered as the above position. Therefore, the two are close to each other, and as a result, there is a problem that the outside air heated by passing through the radiator is sucked from the suction port of the air duct.

  In order to cope with this problem, for example, Patent Document 1 discloses that an air duct is extended toward the side of the vehicle body, and in the empty space between the side wall member of the engine room and the fender outside thereof on the side of the vehicle body. In addition to providing a duct inlet, there is disclosed an engine part such as an air cleaner that has a shielding part for preventing outside air heated by a radiator from flowing into the empty space.

Japanese Utility Model Publication No. 6-27271

  By the way, as described above, a plurality of devices such as engines, radiators, engine parts, and structural members of the vehicle body are disposed in the engine room. The vehicle compartment is expanded to the engine room side to improve performance, and the front part of the engine room is used as a shock absorbing space to improve shock absorption performance at the time of collision. Tend to be under pressure. For this reason, it is necessary to enlarge the engine room in the vehicle body width direction, for example, and it is difficult to secure an empty space as described in Patent Document 1.

  Moreover, since the thing of the said patent document 1 needs to shape | mold an engine component etc. according to the shape of a vehicle body front part as mentioned above, there exists a problem that there is no versatility and cost becomes high.

  Therefore, as another simple measure, for example, a baffle plate (shielding plate) for blocking the hot air from the radiator from reaching the suction port may be provided in the vicinity of the suction port of the air duct. As described above, since a plurality of equipment such as engines and structural members of the vehicle body are densely arranged, for example, providing a flat baffle plate having a large area is substantially caused by interference with these equipment. On the other hand, if the area of the baffle plate is reduced in order to avoid interference, there is a problem that the hot air blocking effect cannot be sufficiently obtained due to the leakage of hot air from the gap between the devices.

  Therefore, it is conceivable to devise the arrangement of these devices so that the gap between these devices and the baffle plate is small. In this case, since the gap is small, the baffle plate and Other devices vibrate and come into contact with each other, and as a result, abnormal noise may be generated, causing discomfort to the occupant and causing damage to the devices.

  Therefore, the present invention can effectively suppress the outside air heated by the radiator from reaching the air duct inlet, even when a plurality of devices and the like are arranged in the engine room. It is an object of the present invention to provide an outside air introduction structure for a vehicle engine that can prevent the generation of noise and damage to the equipment due to contact between the baffle plate and the plurality of equipment.

  In order to solve the above problems, the present invention is configured as follows.

  First, in the invention according to claim 1 of the present application (hereinafter referred to as the first invention), a radiator is disposed in the front portion of the vehicle, and an air duct for introducing outside air into the engine is provided in an engine room immediately after the radiator. An outside air introduction structure for a vehicle engine that is arranged, comprising a frame member arranged in the vicinity of the air duct suction port and a flexible material, and inserted into the frame member in the vicinity of the air duct suction port And a baffle plate held in a three-dimensional shape that substantially divides the space in the engine room into a space on the radiator side and a space on the suction port side of the air duct by the frame member.

  The invention according to claim 2 of the present application (hereinafter referred to as second invention) is characterized in that, in the first invention, the frame member is arranged in a non-contact state with respect to the air duct.

  In the invention according to claim 3 of the present application (hereinafter referred to as the third invention), in the first invention or the second invention, the frame member has a plurality of surface portions for supporting the baffle plate in a three-dimensional shape. A hook portion for locking the baffle plate along each surface portion is provided in the surface portion of the frame member, and a plurality of cuts into which the hook portions are inserted are provided in the baffle plate.

  In the invention according to claim 4 of the present application (hereinafter referred to as the fourth invention), in the third invention, at least one of the plurality of hook portions of the frame member has an insertion direction into the notch of the baffle plate. It is characterized by being different from other hook portions.

  Furthermore, the invention according to claim 5 of the present application (hereinafter referred to as the fifth invention) is characterized in that in any one of the first invention to the fourth invention, the frame member is made of resin.

  The invention according to claim 6 of the present application (hereinafter referred to as the sixth invention) is characterized in that, in any one of the first to fifth inventions, the baffle plate is made of urethane.

  The invention according to claim 7 of the present application (hereinafter referred to as the seventh invention) is characterized in that, in the sixth invention, the baffle plate is inserted in close contact with the outer peripheral surface in the vicinity of the suction port of the air duct. To do.

  Next, the effect of the present invention will be described.

  First, according to the first invention, even when the engine room is narrow and a plurality of devices are intricate, the baffle plate is made flexible, and the plate is attached to the engine room by the frame member. Since the space is held in a three-dimensional shape that roughly divides the space on the radiator side and the space on the air duct inlet side, it effectively suppresses the outside air heated by the radiator from reaching the air duct inlet port. Will be.

  In addition, since the baffle plate is flexible, it can be easily deformed into shapes other than the mounted state, and a predetermined mounting position in the engine room where the structural members of the vehicle body and various devices are arranged in a complicated manner. It can be easily attached, and even if it comes into contact with other devices around it, no abnormal noise is generated and the devices are not damaged.

  Further, since the baffle plate has flexibility, the shape at the time of mounting can be arbitrarily set. For example, the same baffle plate can be used for sister cars having different engine room dimensions. It can be used.

  By the way, as the fixing destination of the frame member, for example, a component constituting the vehicle body or an appliance constituting the air duct can be considered. However, when the frame member is fixed to the component member of the vehicle body, for example, the air duct and the frame member are arranged in contact with each other. In this case, the air duct and the frame member generate different vibrations when the engine is operated and the like, and noises such as chatter noises are easily generated. On the other hand, when they are fixed to the equipment constituting the air duct, they should basically generate the same vibrations. For example, the fixing position of the frame member to the air duct constituent equipment is the frame member of the baffle plate. In the case of a cantilever structure that is provided closer to the engine than the mounting position, even if the frame member is in the same vibration state at the position where the frame member is fixed to the air duct component device, Different vibration states may occur. In this case, if the air duct and the frame member are arranged in contact with each other, abnormal noise such as chatter noise is also generated. However, according to the second invention, since the frame members are arranged in a non-contact state with respect to the air duct, even if they are vibrated by engine vibration or the like, they do not contact each other. There is no abnormal noise caused by contact.

  According to the third invention, the frame member has a plurality of surface portions for supporting the baffle plate in a three-dimensional shape, and hook portions for locking the baffle plate along the respective surface portions are provided on the surface portion of the frame member. Since the baffle plate is provided with a plurality of notches into which the hook portions are inserted, the baffle plate can be attached to the frame members only by engaging the notches of the baffle plate with the hook portions of the frame member. It can be held in a predetermined three-dimensional shape along the surface portion. Moreover, since the structure for holding is a structure that merely engages the hook portion of the frame member and the notch of the baffle plate as described above, the baffle plate can be easily replaced as necessary. .

  According to the fourth aspect of the present invention, at least one of the plurality of hook portions of the frame member is different from the other hook portions in the insertion direction into the notch of the baffle plate, so that the baffle plate is detached from the frame member. There is nothing to do. That is, for example, if the insertion direction of the plurality of hook portions is the same direction, when vibration or the like occurs, the baffle plate moves in the direction opposite to the insertion direction with respect to the frame member, and the baffle plate is moved away from the frame member. Although there is a risk of detachment, according to the fourth invention, at least one of the hook portions has a different insertion direction to the notch of the baffle plate, so the baffle plate is restrained by the frame member and will not move. The baffle plate will not fall off.

  Furthermore, according to the fifth invention, since the backup frame is made of resin, the outside air introduction structure as in the first to fourth inventions can be realized at a low cost, and the vehicle can also be reduced in weight. be able to.

  According to the sixth aspect of the invention, since the baffle plate is made of urethane, the outside air introduction structure as in the first to fifth aspects of the invention can be realized at low cost, and also contributes to the weight reduction of the vehicle. be able to.

  According to the seventh aspect of the invention, the baffle plate is inserted in close contact with the outer peripheral surface in the vicinity of the air duct suction port, and thus effectively prevents the leakage of hot air from the radiator side to the air duct suction port side. In addition, the vibration of the air duct transmitted from the engine can be effectively absorbed by the flexible baffle plate.

  Embodiments of the present invention will be described below.

  FIG. 1 is a plan view of a main part in an engine room at the front of a vehicle according to the present embodiment, FIG. 2 is a view taken along arrow A in FIG. 1 (the engine and battery are omitted), and FIG. 3 is an arrow in FIG. FIG. In each figure, the structural members and various parts of the vehicle are omitted as appropriate.

  As shown in FIG. 1, an engine 3 is disposed almost in the center of an engine room 2 provided in the front portion of the vehicle 1 (the upper side in the figure is the front of the vehicle). On the front side, a radiator 4 that cools the cooling water of the engine 3 is fitted and supported in a shroud panel 5a of a shroud upper 5 that is a vehicle body constituting member.

  Further, a starting battery 6 for the engine 1 is arranged on the left side of the engine 3 in the engine room 2, and a tank 7 for window washer fluid is further provided on the left side of the battery 6 in the figure. It is arrange | positioned on the support frame 8 which is a structural member (refer FIG. 2). A headlamp unit 9 is provided at the left front portion of the vehicle 1.

  Next, the configuration of the intake system 10 of the engine 1 will be described from the upstream side. The intake system 10 is connected to an air duct 11 having an outside air intake port 11a on one end side, and the other end side of the air duct 11; A substantially L-shaped air cleaner unit 12 provided on the main body of the engine 3, a throttle valve unit 14 connected to the air cleaner unit 12 via a first relay duct 13, and a second relay duct connected to the throttle valve 14 15 and an intake manifold 16 connected to the fresh air duct 11. The outside air sucked from the suction port 11 a of the fresh air duct 11 is filtered by the air cleaner unit 12 and the flow rate is adjusted by the throttle valve unit 14. It is configured to be supplied to the combustion chamber via the intake port of the main body. Further, as shown in FIG. 2, the intake system 10 is provided with a resonator 17 that absorbs intake pulsation in the intake system 10 below the air duct 11 (the air duct 11 and the resonator 17 are integrated with each other). The resonator 17 is connected to the air duct 11 via the communication path 18. As shown in FIG. 1, a mounting member 11b is fixed to the air duct 11 in the vicinity of the suction port 11a, and the mounting member 11b is bolted to the bulging portion 5b of the shroud upper 5. The air duct 11 is also supported on the vehicle body side.

  Here, in the present embodiment, as shown in FIGS. 1 and 2, the air duct 11 passes through the front of the battery 6 from the mounting portion to the air cleaner 12 and extends to the rear of the headlamp unit 9 in the vehicle body width direction. The outside air intake port 11a extends in a direction substantially opposite to the direction in which the radiator 4 is provided, and as shown in FIG. 3, the shura wood upper 5, the window washer liquid tank 7, and the headlamp unit 9 is provided so as to be substantially surrounded by a rear portion 9a.

  Further, as shown in FIG. 3, the air duct 11 has a three-dimensional shape in the vicinity of the suction port 11 a so as to close a gap between the shroud upper 5, the tank 7, the headlamp unit 9, and the air duct 11. A baffle plate 21 is provided, and the baffle plate 21 substantially divides the space in the engine 2 into a space on the radiator 4 side and a space on the air inlet 11 a side of the air duct 11. Hereinafter, the baffle plate 21 and the backup frame 22 that supports the baffle plate 21 will be described in detail.

  First, the baffle plate 21 will be described. This baffle plate 21 is made of a flexible urethane material (for example, sponge), and FIG. 4 (a single baffle plate 21 is viewed from the same direction as the arrow B-B in FIG. 1. As shown in FIG. 1, a flat plate having a substantially parallelogram shape is provided with a notch 21 a for preventing interference with the above-described shurawood upper 5 (see FIGS. 1 to 3) at the upper left portion. In addition, a bulging portion 21b that bulges is provided at the lower right portion so as to be substantially along the outer surface of the inlet portion 7a of the window washer liquid tank 7 extending substantially in the vertical direction (see FIGS. 2 and 3). The plate 21 has an air duct through hole 21c through which the air duct 11 passes, and the air duct through hole 21c has a diameter larger than the outer diameter of the air duct 11 main body at the upper part of the air duct 11c. A notch 21d extending in the vertical direction is provided so that the suction port 11a can be inserted. In addition, cuts 21e, 21f, and 21g extending in the horizontal direction are provided at the upper right and left of the air duct through-hole 21c, and to the left of the bulging portion 21b, and a cut 21h extending in the substantially vertical direction is formed on the bulge. It is provided on the left side of the protruding portion 21b.

  Next, the backup frame 22 will be described. The backup frame 22 is made of, for example, a resin material such as plastic, and FIGS. 5 to 7 (FIG. 5 shows a single backup frame 22 as shown by arrows BB in FIG. 6 is a side view from the direction of the arrow D in FIG. 5, and FIG. 7 is a perspective view of the baffle plate 21 and the backup frame 22. As shown in FIG. 22a, a horizontal surface portion 22b extending substantially horizontally from the lower end of the vertical surface portion 22a, an inclined surface portion 22c extending substantially obliquely downward from the tip of the horizontal surface portion 22b, and the vertical surface portion 22a from one end of the vertical surface portion 22a. And a side surface portion 22d extending in a direction substantially orthogonal to.

  A U-shaped groove 22u is formed at the upper central portion in the width direction of the vertical surface portion 22a. The left and right upper end portions of the surface portion 22a extend forward from the upper end portion, and then bend in an L-shaped manner upward. The hook portions 22e and 22f are provided to extend in the direction. The lower end portion of the inclined surface portion 22c is provided with a hook portion 22g that extends forward from the surface portion 22 and bends in an L-shape and extends downward, and the upper surface of the inclined surface portion 22c includes the surface portion. A hook portion 22h is provided that extends forward from 22 and then bends in an L-shape and extends rightward in the drawing.

  Further, similarly to the baffle plate 21, a second baffle plate 23 made of a flexible urethane material (for example, sponge) is bonded to the outer surface of the side surface portion 22 d of the backup frame 22. The second baffle plate 23 is used for the purpose of preventing hot air from flowing from the vehicle rear side (for example, the battery 6 side) to the suction port 11a side and preventing the backup frame 22 from contacting the battery 6 and the washer liquid tank 7. Is provided.

  Here, the backup frame 22 is fixed to the end face 17a (see FIG. 2) on the opposite side of the resonator 17 where the communication path 18 is provided. That is, the backup frame 22 is provided with a positioning projection 22j and an insertion hole 22k for the bolt 19 on the back wall 22i opposite to the inclined surface 22c, as shown in FIG. Further, the end face 17a of the resonator 17 is provided with a positioning recess 17b and a bolt 17 fixing hole 17c. The positioning projection 22j of the backup frame 22 and the recess 17b of the resonator 17 Are fitted and positioned, and bolts 19 are screwed into the holes 22k of the backup frame 22 and the holes 17c of the resonator 17 to be fixed.

  As shown in FIG. 5, the U-shaped groove 22 u of the backup frame 22 has a shape such that a gap is formed between the outer periphery of the air duct 11 when the backup frame 22 is fixed to the resonator 17. The amount is set so that the outer peripheral surface of the air duct 11 and the backup frame 22 do not come into contact with each other even when the intake system 10 vibrates during operation of the engine 3.

  On the other hand, the diameter of the through hole 21c of the baffle plate 21 is slightly larger than the outer diameter of the air duct 11 so that the inner peripheral surface of the through hole 21c and the outer peripheral surface of the air duct 11 are in close contact with each other when the air duct 11 is penetrated. It has been made smaller.

  Then, as shown in FIG. 7 (the baffle plate 21 is deformed along each surface portion of the backup frame 22), the baffle plate 21 and the backup frame 22 are notched 21e. , 21f, 21g, and 21h and the hook portions 22e, 22f, 22g, and 22h of the backup frame 22 are engaged with each other to correspond to each other in FIGS. 8 and 9 (FIG. 8 shows a single backup frame 22 as shown in FIG. As shown in the front view as viewed from the same direction as the arrow B, FIG. 9 is a side view from the direction of arrow D in FIG. 8), the baffle plate 21 follows the surface portions 22 a, 22 b, and 22 c of the backup frame 22. Such a three-dimensional shape is deformed and held.

  Here, of the hook portions 22e, 22f, 22g, and 22h of the backup frame 22, the hook portions 22g and 22h have different bending directions from the other hook portions 22e and 22f. When the hook portions 22g and 22h are inserted into the hooks 22e and 22f, the hook portions 22e and 22f are inserted from different directions. Of course, when removing, it is pulled out in a different direction.

  Next, the operation of the present embodiment will be described.

  First, as shown by the arrow A in FIG. 1, the outside air (running wind) flowing in from the opening at the front of the vehicle body is heated by exchanging heat with cooling water in the radiator 4 and then rearward as shown by the arrow A. The discharged outside air flows toward the rear and side portions of the vehicle body along the front surface, top surface, bottom surface, side surface, and the like of the engine 3.

  In this case, a part of the outside air that flows along the front surface of the engine 3 is the front side, the rear side, and the upper side of the air duct 11 as shown by arrows C, D, E, and F in FIGS. The side, the lower side, and the like flow along the front surface of the battery 6 and the like toward the side of the vehicle body, but according to the present embodiment, the three-dimensional shape is inserted by the backup frame 22 by being inserted in the vicinity of the air inlet 11a The gap between the shroud upper 5, the tank 7, the headlamp unit 9, and the air duct 11 is almost closed by the baffle plate 21 held in the air, so that the space in the engine room 2 becomes the space between the radiator 4 side and the air duct 11. Since it is substantially partitioned into a space on the suction port 11a side, outside air heated by the radiator 4 is sucked into the air duct 11 in any case indicated by arrows c, d, o, and f To reach 11a it is being blocked by the baffle plate 21. Therefore, the outside air in the space on the suction port 11a side of the air duct 11 that is not heated by the radiator 4 is taken into the engine 3 from the suction port 11a, and the intake charging efficiency of the engine 3 does not decrease.

  Further, even when rainwater enters from the opening at the front of the vehicle body, the baffle plate 21 blocks the arrival at the air inlet 11a of the air duct 11 as in the case of outside air. It does not happen.

  Further, since the baffle plate 21 has flexibility, it can be easily deformed into a shape other than the mounted state, and a predetermined inside of the engine room 2 in which the structural members of the vehicle body and various devices are arranged in a complicated manner. The device can be easily mounted at the mounting position, and does not generate abnormal noise even if it comes into contact with other peripheral devices (shrouded upper 5, battery 6, tank 7, headlamp unit 9, etc.). No damage.

  Further, since the baffle plate 21 has flexibility, the shape when attached can be arbitrarily set. For example, the same baffle plate can be used for sister cars having different engine room dimensions. Can be used.

  By the way, the backup frame 22 is fixed to the resonator 17 of the air duct 11 as in the present embodiment, and the fixing position thereof (the position of the mating surface between the end surface 17a of the resonator 17 and the back wall 22i of the backup frame 22). In the case of a cantilever structure in which the baffle plate 21 is provided on the engine 3 side with respect to the attachment position of the baffle plate 21 to the backup frame 22 (substantially the positions of the surface portions 22a, 22b, 22c of the backup frame 22), the air duct of the backup frame 22 11, even if they are in the same vibration state at the fixed position, the vibration state is different on the side where the baffle plate 21 is attached to the backup frame 22. In such a case, if the backup frame 22 and the air duct 11 are in contact with each other, there is a possibility that both of them repeatedly come into contact with each other due to vibration of the engine 3 and abnormal noise due to contact such as chatter noise may occur. In the present embodiment, since the backup frame 22 is arranged in a non-contact state with respect to the air duct 11, both may come into contact with each other even if vibration occurs in both due to vibration of the engine 3 or the like. The above-mentioned abnormal noise does not occur. Although it is conceivable to fix the backup frame to the structural member of the vehicle body, even in this case, if the backup frame 22 and the air duct 11 are arranged in a non-contact state as in the present embodiment, As described above, it is possible to prevent the generation of abnormal noise. In this case, since the vibration deviation between the backup frame 22 and the air duct 11 is large, the gap between the backup frame 22 and the air duct 11 may be made larger than that in the present embodiment.

  Further, the backup frame 22 is provided with hook portions 22e, 22f, 22g, and 22h for locking the baffle plate 21 along the surface portions 22a, 22b, and 22c of the frame 22, and the baffle plate 21 includes Since the plurality of cuts 21e, 21f, 21g, 21h into which the respective hook portions 22e, 22f, 22g, 22h are inserted are provided, the cuts 21e, 21f, 21g, 21h of the baffle plate 21 and the hooks of the backup frame 22 are provided. The baffle plate 21 can be held in a predetermined three-dimensional shape along each surface portion of the backup frame 22 simply by engaging the portions 22e, 22f, 22g, and 22h. Further, the structure for holding is a structure in which the hook portions 22e, 22f, 22g, and 22h of the backup frame 22 and the notches 21e, 21f, 21g, and 21h of the baffle plate 21 are engaged as described above. Thus, for example, even when the baffle plate 21 is deteriorated, the baffle plate 21 can be easily replaced as necessary.

  Of the hook portions 22e, 22f, 22g, and 22h of the backup frame 22, the hook portions 22g and 22h are different from the other hook portions 22e and 22f in the insertion direction of the baffle plate 21 into the notches 21g and 21h. Therefore, the baffle plate 21 is not detached from the backup frame 22. That is, for example, if the insertion direction of the plurality of hook portions is the same direction, for example, when vibration or the like occurs, the baffle plate moves in the direction opposite to the insertion direction with respect to the frame member, and the baffle plate moves to the frame member. However, according to the present embodiment, the hook portions 22g and 22h among the plurality of hook portions 22e, 22f, 22g, and 22h have different insertion directions into the notches 21g and 21h of the baffle plate 21. Therefore, the baffle plate 21 is restrained by the backup frame 22 and will not move, and the baffle plate 21 will not drop off.

  Furthermore, since the backup frame 22 is made of resin, the above-described outside air introduction structure can be realized at low cost, and the vehicle 1 can be reduced in weight.

  Further, since the baffle plate 21 is made of urethane, the above-described outside air introduction structure can be realized at a low cost, and the vehicle 1 can also be reduced in weight.

  Since the baffle plate 21 is inserted in close contact with the outer peripheral surface of the air duct 11 in the vicinity of the suction port 11a, the vibration of the air duct 11 transmitted from the engine 3 is effective by the flexible baffle plate 21. And the leakage of hot air from the radiator 4 side to the suction port 11a side of the air duct 11 can be effectively prevented.

  In the above embodiment, the baffle plate 21 is exemplified by a urethane material such as sponge. However, the present invention is not limited to this, and any material having flexibility may be widely applied.

  The present invention can be widely applied to an outside air introduction structure for a vehicle engine.

It is a principal part top view of the external air attachment structure of the vehicle engine which concerns on embodiment of this invention. It is a principal part arrow view by the arrow A of FIG. 1 (an engine and a battery are abbreviate | omitting). It is a principal part arrow directional view by the BB line of FIG. It is a single item front view of the baffle plate concerning an embodiment of the invention. It is a single item front view of the backup frame. It is an arrow view by the arrow C of FIG. It is a single item perspective view of a baffle plate and a backup frame. It is the combination figure of the same baffle plate and a backup frame. It is an arrow view by the arrow D of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Engine room 3 Engine 10 Intake system 11 Air duct 12 Air cleaner 16 Intake manifold 17 Resonator 21 Baffle plate 21c Through-hole 21e, 21f, 21g, 21h Cut 22 Backup frame (frame member)
22a, 22b, 22c, 22d surface portion (multiple surface portions)
22e, 22f, 22g, 22h Hook part

Claims (7)

A vehicle engine outside air introduction structure in which a radiator is arranged at the front of the vehicle, and an air duct for introducing outside air into the engine is arranged in the engine room immediately after the radiator, and in the vicinity of the air duct inlet. The frame member is made of a flexible material, and is attached to the frame member in a state of being inserted in the vicinity of the air duct suction port. The frame member allows the space in the engine room to be connected to the radiator side space and the air duct. And a baffle plate held in a three-dimensional shape substantially partitioned into a space on the inlet side of the vehicle. The engine outside air introduction structure according to claim 1, wherein the frame member is disposed in a non-contact state with respect to the air duct. The frame member has a plurality of surface portions that support the baffle plate in a three-dimensional shape, and hook portions for locking the baffle plate along the surface portions are provided on the surface portion of the frame member, and the hook portions are The engine outside air introduction structure according to claim 1, wherein the baffle plate is provided with a plurality of cuts to be inserted. The outside air introduction structure for a vehicle engine according to claim 3, wherein at least one of the plurality of hook portions of the frame member is different from the other hook portions in an insertion direction of the baffle plate into the notch. The outside air introduction structure for a vehicle engine according to any one of claims 1 to 4, wherein the frame member is made of resin. The outside air introduction structure for a vehicle engine according to any one of claims 1 to 5, wherein the baffle plate is made of urethane. The outside air introduction structure for a vehicle engine according to claim 6, wherein the baffle plate is inserted in close contact with an outer peripheral surface of a portion near the suction port of the air duct.

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