JP4563869B2 - Automobile intake structure - Google Patents

Description

  The present invention relates to an intake structure for an automobile that supplies outside air taken from an opening of a front bumper to an engine from an inner space of one of the left and right front fenders via an intake duct.

  The side under cover disposed in front of the front wheel of the automobile is provided with a mountain-shaped portion that protrudes upward along the front-rear direction of the vehicle body, and the air flows from the top to the bottom on the vehicle-width-direction outer inclined surface of the mountain-shaped portion. By forming through holes for insertion in the longitudinal direction of the vehicle body, the air pressure with high flow velocity hitting the front of the front wheels is reduced to reduce pressure resistance and prevent water from entering the engine room 1 is known.

Also, the under cover of the automobile is integrally blow-molded so as to have an edge portion attached along the bumper skirt and an under floor portion that closes the lower surface of the engine room, and outside air is put into the engine room on the upper surface of the under floor portion. Japanese Patent Application Laid-Open Publication No. 2004-259542 discloses a structure that ensures sound insulation and air permeability of an engine room by integrally forming a guide portion to be guided.
Japanese Patent No. 3362519 Japanese Patent No. 3361758

  By the way, if the opening part of the front bumper is enlarged, the traveling wind hitting the radiator and the condenser for air conditioning can be increased to increase the heat exchange efficiency and the intake efficiency of the intake air into the engine. There is a problem that aesthetics are impaired because it is visible.

  The present invention has been made in view of the above-described circumstances, and it is an object of the present invention to enhance the aesthetic appearance of the opening portion of the front bumper and increase the efficiency of intake of outside air passing through the opening portion into the engine.

  In order to achieve the above object, according to the first aspect of the present invention, the intake air of an automobile that supplies outside air taken from the opening of the front bumper to the engine from the inner space of one of the left and right front fenders via the intake duct. In the structure, a cover member that covers a part of the opening of the front bumper is disposed between the front bumper and the radiator, and a rectifying plate that guides outside air to the internal space of the front fender is provided on the left and right sides of the cover member, and An air intake structure for an automobile is proposed in which a partition plate for blocking the flow of outside air is provided.

  In addition, the bulkhead lower cover 15 of an Example respond | corresponds to the cover member of this invention.

  According to the configuration of claim 1, since the cover member that covers a part of the opening of the front bumper is disposed between the front bumper and the radiator, it is difficult to see the inside of the engine room through the opening and the appearance is improved. Productivity can be improved. In addition, since the right and left sides of the cover member are provided with rectifying plates and the left and right sides are provided with partition plates, the outside air taken in from the front bumper openings is actively guided to the inner space of the left and right front fenders, and the intake duct is routed from there. By supplying to the engine, the temperature of the intake air can be lowered and the intake efficiency can be increased.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples of the present invention shown in the accompanying drawings.

  FIGS. 1 to 7 show an embodiment of the present invention. FIG. 1 is a perspective view of a front part of a vehicle body, FIG. 2 is a two-way arrow view of FIG. 1, and FIG. 4 is an exploded perspective view of the bulkhead and the bulkhead lower cover, FIG. 6 is an enlarged sectional view taken along line 6-6 of FIG. 4, and FIG. 7 is FIG. FIG. 7 is an enlarged sectional view taken along line 7-7.

  “Left and right” in this specification is defined as “left and right” in a state where the front is viewed from the rear of the automobile.

  As shown in FIGS. 1 to 5, a radiator 12 is supported at the center of a bulkhead 11 disposed at the front of the vehicle body, and an air conditioning condenser 13 is supported so as to overlap the front surface of the radiator 12. An opening 14 a extending in the left-right direction of the vehicle body is formed in the front bumper 14 disposed on the front surface of the bulkhead 11, and outside air taken from the opening 14 a is guided to the air conditioning condenser 13 and the radiator 12. A bulk head lower cover 15 made of synthetic resin is attached to the lower portion of the bulk head 11 so as to cover both the left and right sides of the opening 14 a of the front bumper 14.

  The bulkhead lower cover 15 is configured by connecting a partition plate 17 and a rectifying plate 18 to each of the right end and the left end of the connecting plate 16 with three rivets 19. The connecting plate 16 is a flat member that is elongated in the left-right direction, and is horizontally disposed along the lower edge of the opening 14 a of the front bumper 14, and its rear edge has three clips on the front edge of the lower member 11 a of the bulkhead 11. 20...

  The partition plate 17 of the bulkhead lower cover 15 is a member that fits into the inner peripheral surface of the right side portion of the opening 14a of the front bumper 14 and shields it from the engine room, and has a fixing portion 17a protruding from the rear surface. It is fixed to the right side member 11b of the bulkhead 11 via two clips 21, 21 (see FIG. 6). A mounting portion 17b is projected from the upper right portion of the partition plate 17. The mounting portion 17b is fastened to the right front side frame 22 with bolts 23 and nuts 24 (see FIG. 7).

  The rectifying plate 18 of the bulkhead lower cover 15 is a member that faces the left side portion of the opening 14a of the front bumper 14 and shields it from the engine room. The fixing portion 18a protruding from the rear surface includes two clips 25, 25 is fixed to the left side member 11 c of the bulkhead 11. A mounting portion 18b protrudes from the upper left portion of the rectifying plate 18, and this mounting portion 18b is fastened to the left front side frame 26 with bolts 27 and nuts 28. A semicircular cutout 18c is formed at the left end of the current plate 18, and a horn 29 is housed in the cutout 18c.

  The intake chamber 32 is partitioned by welding the inner member 31 inside the left front fender 30, and the left end of the rectifying plate 18 of the bulkhead lower cover 15 faces the front opening of the intake chamber 32. An intake duct 34 extending from the engine 33 disposed behind the bulkhead 11 is connected to the intake chamber 32.

  Thus, the outside air taken in from the opening 14a of the front bumper 14 as the automobile travels passes through the space between the partition plate 17 and the rectifying plate 18 of the bulkhead lower cover 15, and is cooled by the air conditioning condenser 13 and the radiator 12. And heat exchange with cooling water.

  The outside air that has collided with the partition plate 17 of the bulkhead lower cover 15 is prevented from flowing to the right side and flows to the left side, and is pushed by the flow to the rear surface of the opening 14a of the front bumper 14 from the partition plate 17 side to the rectifying plate 18 side. A left and right airflow is generated. The outside air that has collided with the rectifying plate 18 of the bulkhead lower cover 15 actively flows leftward and rearward by the airflow in the left-right direction, flows into the intake chamber 32 defined inside the front fender 30, and from there through the intake duct 34. And is sucked into the engine 33.

  Thus, since the opening 14a of the front bumper 14 is covered with the bulkhead lower cover 15 except for the portions facing the radiator 12 and the air conditioning condenser 13, the inside of the engine room is difficult to see through the opening 14a of the front bumper 14. In addition, the aesthetic appearance can be improved and the merchantability can be improved. Moreover, since the outside air can be actively guided to the intake chamber 32 partitioned inside the front fender 30 by the partition plate 17 and the rectifying plate 18 of the bulkhead lower cover 15, the intake efficiency of the engine 33 can be increased, The intake air temperature can be lowered and the output of the engine 33 can be improved as compared with the case where the outside air in the engine room is sucked.

  In addition, the partition plate 17 and the rectifying plate 18 of the bulkhead lower cover 15 suppress external air from flowing into the engine room from the front, and the connecting plate 16 of the bulkhead lower cover 15 suppresses external air from flowing into the engine room from below. Thus, it is possible to prevent the aerodynamic performance from being deteriorated due to excessive inflow of outside air into the engine room.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. It is.

  For example, in the embodiment, the partition plate 17 is disposed on the right side of the bulkhead lower cover 15 and the rectifying plate 18 is disposed on the left side. However, the positional relationship between the partition plate 17 and the rectifying plate 18 can be reversed left and right.

Perspective view of the front of the car body 2 direction view of FIG. 3 direction arrow view of FIG. 4-4 arrow view of FIG. Exploded perspective view of bulkhead and bulkhead lower cover 6-6 enlarged sectional view of FIG. 7-7 enlarged sectional view taken along line 7-7

Explanation of symbols

12 Radiator 14 Front bumper 14a Opening 15 Bulkhead lower cover (cover member)
17 Partition plate 18 Current plate 30 Front fender 33 Engine 34 Air intake duct

Claims (1)

In the intake structure of an automobile, the outside air taken from the opening (14a) of the front bumper (14) is supplied to the engine (33) through the intake duct (34) from the inner space of the left and right front fenders (30).
A cover member (15) that covers a part of the opening (14a) of the front bumper (14) is disposed between the front bumper (14) and the radiator (12), and the front fender is disposed on either side of the cover member (15). An air intake structure for an automobile, wherein a rectifying plate (18) for guiding outside air is provided in the internal space of (30), and a partition plate (17) for blocking the flow of outside air is provided on the left and right sides.

Images