JP5196113B2 - Intake device for vehicle engine - Google Patents

Description

  The present invention relates to an intake device for a vehicle engine, and more particularly to an intake device for a vehicle engine in which an intake duct is disposed in an engine room.

  In a vehicle engine intake device, a radiator support member extending in the vehicle width direction (the vehicle left-right direction) is disposed at the front of the engine room of the vehicle, and a cooling gap is provided between the radiator support member and a predetermined gap below the radiator support member. A fan shroud including a fan, a headlamp including an optical axis adjusting unit for adjusting an optical axis on an inner side in the vehicle width direction, and an radiator support member on the outer side in the vehicle width direction of the radiator support member. A box-shaped auxiliary machine is arranged on the rear side of the member with respect to the radiator support member so as to be separated from the radiator support member and adjacent to the inner side in the vehicle width direction of the headlamp, and is arranged in the engine room. An air intake duct that introduces outside air into the air cleaner and the optical axis adjuster are arranged in a gap between the radiator support member and the auxiliary machine. There is.

Conventionally, an engine outside air introduction structure has a radiator and an electric fan arranged under the shroud upper member, an air cleaner is arranged behind the electric fan, and a wheel apron and a fender are provided on the side of the air cleaner. There is a type in which a space portion is formed, and a suction port of an intake duct is disposed in this space portion.
In the air duct structure for a vehicle, the middle part of the air duct is fixed to the radiator core support on the side of the vehicle body, and the duct part extending from this fixing part to the front end is arranged so as to cross the rear vicinity of the headlamp, and from the fixing part to the front end. Some have a bellows part in the duct part.
Japanese Utility Model Publication No. 6-27271 Japanese Utility Model Publication No. 57-179524

However, conventionally, in an intake device for a vehicle engine, if an intake duct is provided in the engine room, the air intake from the radiator fan causes the intake air to inhale high-temperature air in the engine room, resulting in engine output. Decreased.
Further, when adjusting the optical axis of the headlamp, if there is an intake duct in the jig operating range, the adjustment must be performed by removing the intake duct, and the adjustment work is reduced.
Further, when the intake duct is disposed above the radiator support member, the impact absorbing space in the engine room is small, and when the impact force acts on the front part of the vehicle, the impact cannot be sufficiently absorbed.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vehicle engine intake device that prevents a decrease in engine output, improves headlamp maintenance, and has improved shock absorption when an impact force acts on the front of the vehicle. It is to provide.

In the present invention, a radiator support member extending in the vehicle width direction is disposed at a front portion of a vehicle engine room, and a radiator and a fan shroud including a cooling fan are disposed below the radiator support member with a predetermined gap therebetween. A headlamp having an optical axis adjusting portion for adjusting the optical axis at the inner side in the vehicle width direction is disposed on the outer side in the vehicle width direction of the radiator support member, and the radiator is disposed on the rear side of the radiator support member. A box-shaped auxiliary machine is disposed so as to be separated from the support member by a predetermined gap and adjacent to the inner side of the headlamp in the vehicle width direction, and external air is introduced into an air cleaner disposed in the engine room. and the optical axis adjustment tool axis of the optical axis adjustment tool for adjusting the optical axis adjusting section and the intake duct the radiator support members and prior In an intake device for a vehicle engine is disposed in the gap sandwiched between the accessory, is extended in the vehicle width direction a passage portion of the intake duct along the optical axis adjusting tool axis in plan view of the vehicle, of the passage An air inlet at the upstream end is opened in front of the vehicle and in the direction of the optical axis adjustment tool in the direction of the optical axis adjustment tool toward the optical axis adjustment unit, and is disposed adjacent to the optical axis adjustment unit. A shield plate that extends in the vehicle front- rear direction on the outer periphery of the vehicle and enters the clearance below the radiator support member on the vehicle front side and closes the clearance between the radiator support member and the accessory on the vehicle rear side in contact with the accessory mounting, characterized in that integrally formed with the passage portion of the shielding plate and the upstream side of the shield plate of an elastic material.

  The air intake device for a vehicle engine according to the present invention can improve the workability of adjusting the optical axis of the headlamp adjacent to the air intake duct while adopting a structure in which cold outside air can be introduced into the air intake duct.

The present invention achieves the purpose of improving the maintenance performance of the headlamp while preventing a decrease in engine output by changing the opening position of the passage portion of the intake duct or attaching a shielding plate to the intake duct. It is.
Hereinafter, embodiments of the present invention will be described in detail and specifically with reference to the drawings.

1 to 7 show an embodiment of the present invention. 1-4, 1 is a vehicle, 2 is a left side member, 3 is a lower cross member, 4 is an engine hood, 5 is a front grille, 6 is a front bumper, 7 is a left fender panel, and 8 is a right fender panel. , 9 is a left suspension tower, 10 is a right suspension tower, 11 is a dash panel, 12 is a left wheel, 13 is a right wheel, 14 is a left headlamp, and 15 is a right headlamp. The left side member 2 and the lower cross member 3 constitute a vehicle body.
As shown in FIG. 1, a vehicle compartment 16 is formed in the vehicle 1 on the vehicle rear side of the dash panel 11, and an engine room 17 is formed on the vehicle front side of the dash panel 11.
In the engine room 17, a horizontally mounted engine 18 and a transmission 19 connected to the left side of the engine 18 in the vehicle width direction (vehicle left-right direction) X are disposed. The engine 18 is supported on the vehicle body by a lower mount 20 as shown in FIG. 2, and includes an intake manifold 21 as shown in FIG. Further, as shown in FIG. 1, a supercharger 22 is attached to the engine 18 at a substantially central portion of the front portion.
As shown in FIGS. 1 to 4, a radiator support member 23 that extends upward in the vehicle width direction X is disposed at the front of the engine room 17.
Below the radiator support member 23, as shown in FIGS. 2 and 7, a predetermined gap is provided to cool the radiator 24 on the rear side of the vehicle with respect to the front grill portion 5, and cool on the rear side of the vehicle with respect to the radiator 24. A fan shroud 26 including a fan 25 is disposed. The upper portion of the radiator 24 is supported by the radiator support member 23 via two radiator brackets 27 and 27 as shown in FIG.
As shown in FIG. 1, an intercooler 28 is disposed at the front of the engine 18 on the right side in the vehicle width direction X with respect to the radiator 24. An intercooler upstream pipe 29 and an intercooler downstream pipe 30 are connected to the intercooler 28.

The left head lamp 14 and the right head lamp 15 are supported by a left lamp support member 31 and a right lamp support member 32 that are connected to the radiator support member 23. As shown in FIG. 1, the left lamp support 31 is disposed obliquely from the left side of the radiator support member 23 in the vehicle width direction X to the vehicle rear side and the vehicle left side in a plan view. The right lamp support 32 is symmetrical with the left lamp support 31 and is disposed obliquely from the right side of the radiator support member 23 in the vehicle width direction X to the vehicle rear side and the vehicle right side.
As shown in FIGS. 3 and 4, the left headlamp 14 includes a left optical axis adjustment unit 33 for adjusting the optical axis inside the vehicle width direction X, and the radiator support member 23 in the vehicle width direction X is adjusted. Arranged on the outer side. 2 to 4, the left optical axis adjustment unit 33 is operated by an optical axis adjustment tool from the optical axis adjustment tool axis C to adjust the optical axis of the left headlamp 14. Although not shown, the right headlamp 15 includes a right optical axis adjustment unit and is disposed on the right side in the vehicle width direction X symmetrical to the left headlamp 14.
As shown in FIGS. 1 to 3, on the vehicle rear side of the radiator support member 23, a predetermined gap is separated from the radiator support member 23 and the inside of the left headlamp 14 as a headlamp in the vehicle width direction X is disposed. A battery 34 as a box-shaped auxiliary machine is disposed so as to be adjacent to the unit. As shown in FIG. 2, the battery 34 is placed on a battery tray 35.

As shown in FIGS. 1 and 3, an air cleaner 36 is disposed in the engine room 17 between the left side of the engine 18 in the vehicle width direction X and the battery 34 and above the transmission 19. . The air cleaner 36 includes an upper case 37 and a lower case 38. An intake duct 39 for introducing outside air is connected to the lower case 38. The upper case 37 includes an outlet 41 to which the intake hose 40 is connected. The intake hose 40 is connected to the intercooler upstream pipe 29 via the supercharger 22. As shown in FIG. 3, the intake duct 39 and the left optical axis adjustment unit 33 as the optical axis adjustment unit are disposed in a gap S sandwiched between the radiator support member 23 and the battery 34 as an auxiliary device. The intercooler downstream pipe 30 is connected to the intake manifold 21.
Further, in the engine room 17, as shown in FIG. 1, a degassing tank 42 for extracting air in the cooling water of the engine 18 between the battery 34 and the rear end portion of the left lamp support member 31 is provided. It is arranged.

As shown in FIGS. 5 to 7, the intake duct 39 includes a passage portion 43, an intake port 44 at the upstream end of the passage portion 43, a downstream intake duct connection portion 45, and a shielding plate 46. Yes.
As illustrated in FIGS. 5 and 7, the passage portion 43 extends in the vehicle width direction (vehicle left-right direction) X.
As shown in FIGS. 1 and 3, the air inlet 44 is formed in a shape opened to the front of the vehicle and outward in the vehicle width direction X, and opens to a position adjacent to the left optical axis adjustment unit 33. That is, the intake port 44 is located above the radiator 24 at a position lower than the radiator support member 23 and is sandwiched between the radiator support member 23 and the battery 34 in the vehicle front-rear direction, and the outside is surrounded by the left headlamp 14. The space opens toward the front of the vehicle.
As described above, the passage portion 43 of the intake duct 39 is extended in the vehicle width direction X, and the intake port 44 at the upstream end is opened at a position adjacent to the left optical axis adjustment unit 33. Is kept away from the fan shroud 26, so that warm air from the fan shroud 26 is hardly sucked into the intake port 44, and a decrease in engine output can be prevented.
Further, by forming the intake port 44 in a shape opened to the front of the vehicle and outward in the vehicle width direction X, the outside air can be introduced into the intake port 44 from a position further away from the fan shroud 26. In addition, the passage portion 43 of the intake duct 39 is extended in the vehicle width direction X and has a structure that is easily deformed at the time of assembly, so that the ease of assembly of the intake duct 39 can be improved.
Furthermore, when the intake port 44 is disposed above the radiator 24 at a position lower than the radiator support member 23, the shock absorbing space in the engine room 17 is increased, and an impact force acts on the front portion of the vehicle. In addition, the impact can be sufficiently absorbed, thereby protecting pedestrians and the like.

A shield plate 46 is attached to the outer periphery of the passage portion 43 so that the front side of the vehicle enters the gap S below the radiator support member 23 and the rear side of the vehicle faces the battery 34 that is an auxiliary device. That is, the shielding plate 46 is disposed so as to close the gap S between the radiator support member 23 and the battery 34 as shown in FIG.
As shown in FIG. 7, the shielding plate 46 has a front shielding portion 46A that is directed in the vertical direction between the radiator support member 23 and the fan shroud 26 that are spaced apart in the vertical direction, and is disposed above the front shielding portion 46A. A step shielding portion 46B formed in a stepped shape so as to avoid the radiator support member 23 and a stepped shielding portion 46B that is provided in a step shape in a horizontal direction at a position near the upper surface of the radiator support member 23 and the battery 34. An upper shielding portion 46C that is directed, a rear shielding portion 46D that is connected to the upper shielding portion 46C and is directed in the vertical direction so as to be close to the battery 34 and in contact with the lower battery tray 35, and the rear shielding portion 46D is connected to the battery tray 35 in the horizontal direction and is positioned on the upper surface of the fan shroud 26 through the step 46E. And a side shield portion 46F.
In this manner, the front side of the vehicle enters the clearance S below the radiator support member 23 on the outer periphery of the passage portion 43 of the intake duct 39, and the shielding plate 46 is attached to the rear side of the vehicle facing the battery 34, which is an accessory. Thus, the gap S formed below the radiator support member 23 and between the passage portion 43 and the battery 34 which is a box-shaped auxiliary machine is shielded by the shielding plate 46, and the warm air from the fan shroud 26 is sucked into the intake port. It is possible to prevent the engine output from decreasing.
Further, by arranging the shielding plate 46 so as to close the gap S between the radiator support member 23 and the battery 34, it is difficult to suck the heated air in the engine room 17 from the intake port 44, and the front of the vehicle The engine output can be improved by actively taking in the outside air.

Further, as shown in FIGS. 5 to 7, in the intake duct 39, the shielding plate 46 and the passage portion 43 on the upstream side of the shielding plate 46 are integrally formed with an elastic body (for example, rubber material) 47. To do.
As described above, the shielding plate 46 and the passage portion 43 on the upstream side of the shielding plate 46 are integrally formed by the elastic body 47, so that the shielding plate 46 is formed from the gap S between the radiator support member 23 and the battery 34. Even when the intake duct 39 is assembled, the passage portion 43 and the shielding plate 46 can be deformed to allow the gap S between the radiator support member 23 and the battery 34 to pass therethrough. Adhesiveness can be improved, and when an impact force acts on the front part of the vehicle, it can be deformed to absorb the impact. Further, when the optical axis adjustment operation of the left headlamp 14 is performed, the passage portion 43 can be deformed so that the adjustment operation can be performed, and the workability of the optical axis adjustment operation can be improved. It can be performed without removing the duct 39 and the exchange work can be improved.

Further, as shown in FIGS. 5 to 7, a flange portion 48 that extends in the horizontal direction and contacts the vehicle body part is formed in the lower shielding portion 46 </ b> F that is the lower end portion of the shielding plate 46. The flange portion 48 is located between the fan shroud 26 and the battery 34 and protrudes to the left side in the vehicle width direction X with a length L1. The flange portion 48 is positioned on the upper surface of the fan shroud 26 and on the left side in the vehicle width direction X. It consists of the front side flange part 50 which protruded by length L2. Here, as shown in FIG. 5, there is a relationship of L1> L2.
The rear flange portion 49 is formed with a locking hole 52 through which the locking portion 51 rising at the end of the battery tray 35 is inserted.
In this embodiment, the intake duct 39 includes a passage portion 43, a downstream-side intake duct connection portion 45, a shielding plate 46, and a flange portion 48, and is entirely formed of an elastic body 47.
As a result, the flange portion 48 prevents deformation of the shielding plate 46 formed of the elastic body 47, prevents warm air from the fan shroud 26 from flowing into the intake port 44, and prevents a decrease in engine output.

As shown in FIGS. 2 to 4, a downstream intake duct 53 connected to the air cleaner 36 is connected to the downstream intake duct connecting portion 45. As shown in FIG. 3, the downstream intake duct 53 is supported by the radiator support member 23 via a duct bracket 54.
In FIGS. 3 and 4, reference numeral 1C denotes a vehicle center line.

  Changing the opening position of the passage portion of the intake duct or attaching a shielding plate to the intake duct can be applied to other structures.

It is a top view of a vehicle front part. It is a left view of the vehicle front part in the state which removed the headlamp. It is an enlarged plan view of the left side of the vehicle front part. It is an enlarged front view of the left side of a vehicle. It is a front view of an intake duct. It is a top view of an intake duct. It is a left view of the air intake duct arrange | positioned between a radiator support member and a battery.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle 11 Dash panel 14 Left head lamp 15 Right head lamp 16 Car compartment 17 Engine room 18 Engine 23 Radiator support member 24 Radiator 25 Cooling fan 26 Fan shroud 31 Left lamp support member 32 Right lamp support member 33 Left optical axis adjustment part 34 Battery 36 Air cleaner 39 Air intake duct 43 Passage portion 44 Air inlet 45 Downstream air intake duct connection portion 46 Shield plate 47 Elastic body 48 Flange portion

Claims (1)

  A radiator support member extending in the vehicle width direction is disposed at the front of the engine room of the vehicle, and a radiator and a fan shroud including a cooling fan are disposed below the radiator support member with a predetermined gap therebetween. A headlamp provided with an optical axis adjusting portion for adjusting the optical axis on the inner side is disposed on the outer side in the vehicle width direction of the radiator support member, and the radiator support member is disposed on the rear side of the radiator support member with respect to the radiator support member. A box-like auxiliary machine is provided so as to separate a predetermined gap and to be adjacent to the inner side of the headlamp in the vehicle width direction, and an intake duct for introducing outside air to an air cleaner arranged in the engine room; The optical axis adjustment tool axis line of the optical axis adjustment tool for adjusting the optical axis adjustment unit is sandwiched between the radiator support member and the auxiliary machine. In the vehicle engine intake device disposed in the gap, the intake duct passage portion extends in the vehicle width direction along the optical axis adjustment tool axis in a plan view of the vehicle, and the intake air at the upstream end of the passage portion An opening is opened in front of the vehicle and in the direction of the optical axis adjustment tool in the direction of the optical axis adjustment tool toward the optical axis adjustment unit, and is adjacent to the optical axis adjustment unit. A shield plate extending in the direction so that the front side of the vehicle enters a gap below the radiator support member and the rear side of the vehicle contacts the auxiliary machine and closes the gap between the radiator support member and the auxiliary machine, and the shielding An intake device for a vehicle engine, wherein a plate and the passage portion upstream of the shielding plate are integrally formed of an elastic body.

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