JP3922605B2 - Radiator hot air entrainment prevention device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hot air entrainment prevention device for a radiator that is attached to an engine room provided at the rear of a vehicle body and has a structure in which cooling air is taken in from the outside of the vehicle body through a radiator and discharged outside the vehicle by a cooling fan.
[0002]
[Prior art]
There is known a hot air entrainment prevention device in which a rubber seal formed in a rectangular shape which is attached to an inner surface of a vehicle body and made of an elastic body is in contact with a fan shroud attached to a radiator.
[0003]
[Problems to be solved by the invention]
However, in the above technique, since the air flow hits the louver provided on the rear surface of the vehicle body through which the air flow from the fan passes, and a part of it blows back and hits the seal rubber, the seal rubber is swollen and leaked by the wind pressure. There is a problem that the warm air is caught in the radiator and the cooling performance of the radiator is deteriorated.
[0004]
Further, the technique disclosed in Japanese Patent Laid-Open No. 8-100656 is disclosed, but it is a technique for facilitating fan belt replacement in the case of a vehicle in which the engine room is in the front part of the vehicle and the radiator is in the front part. It is not related to the subject and purpose of the present application.
[0005]
Accordingly, an object of the present invention is to provide a hot air entrainment prevention device having a simple structure for preventing the entrainment of a hot air of a radiator in a rear engine bus.
[0006]
[Means for Solving the Problems]
According to the present invention, in the engine room E provided at the rear part of the rear engine bus body, the louver 1a for supplying cooling air is formed on the side surface 1, and the louver 2a for discharging hot air is formed on the rear surface 2. The radiator 3 is attached to the side of the engine room E, and the fan shroud 7 is attached to the downstream side of the engine room E via a seal 5 made of sponge. A fan 16 is installed in the hole 6 of the shroud 7. In the radiator hot air entrainment prevention apparatus, the fan 16 is driven and cooling air is taken in from the side louver 1a, passed through the radiator 3 and discharged from the rear louver 2a. A connecting member 8 having a groove 8a is fixed to both the left and right side surfaces, and a partition wall for the engine is formed in the groove 8a of the connecting member 8 at the center of the vehicle body. The seal member 10 formed of a plate-like elastic body is provided on the side surface 1 of the vehicle body with one end thereof fixed to the mounting member 12, and the connection member 8 fixed to the vehicle body side surface 1 side of the shroud 7. The other end of the sealing member 10 is inserted into the groove 8a of the radiator.
[0007]
Further, according to the present invention, in the engine room E provided at the rear part of the rear engine bus body, the louver 1a for supplying cooling air is formed on the side surface 1, and the louver 2a for discharging hot air is formed on the rear surface 2. The radiator 3 is attached to the side of the engine room E, and the fan shroud 7 is attached to the downstream side of the radiator 3 through a seal 5 made of sponge. The hole 6 of the shroud 7 In the apparatus for preventing hot air from being entrained in a radiator, the fan 16 is provided, and the fan 16 is driven so that cooling air is taken in from the side louver 1a, passed through the radiator 3 and discharged from the rear louver 2a. A connecting member 8 having a groove 8a is fixed to a side surface of the shroud 7 on the vehicle body center side, and the groove 8a of the connecting member 8 is separated from the engine. A wall 9 is inserted, and a seal member 10 formed of a plate-like elastic body is provided on the side surface 1 of the vehicle body 1 of the shroud 7. The seal member 10 has a plate shape having a plurality of bolt holes 23 on the side surface of the shroud 7. It is fixed by the mounting member 20.
[0008]
According to the present invention, the seal member (10 or 30) may be provided with a hole (31) through which a duct passes.
[0009]
The present invention is configured as described above, the degree of adhesion between the fan shroud and the seal rubber as a seal member is improved, the entrainment of hot air is reduced, the cooling performance is improved, and the engine overheating in the summer can be prevented. .
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0011]
In FIG. 1, a radiator 3 is attached to a right side of an engine room E provided at a rear portion of a vehicle body by a bracket ( not shown), and a louver 1 a for supplying cooling air to the radiator is provided on a side surface 1 of the vehicle body. Is formed with a louver 2a through which warm air whose temperature has risen after passing through the radiator 3 is discharged to the outside of the vehicle.
[0012]
A fan shroud 7 is attached downstream of the radiator 3 (on the right side in the figure) via seals 5 and 5 which are made of sponge and disposed around the periphery. The engine rotation is transmitted from the drive pulley P to the fan 16 fixed to the fan pulley 15 via the V belt 19 by rotating the idler pulley 18 via the V belt 17.
[0013]
Further, referring to FIG. 2 which is a perspective view showing the fan shroud 7, a connecting member 8 having an overall U-shaped cross section is fixed to the left and right side surfaces of the fan shroud 7 having the hole 6 into which the fan 16 is inserted. A partition wall 9 with an engine (not shown) is inserted into the groove 8a of the connection member 8 on the center side (left side in the figure) of the vehicle body, and a channel-shaped attachment member 12 attached to the side surface 1 of the vehicle body on the right side. The other end of the seal rubber 10 formed in a rectangular shape with a rubber plate which is an elastic body having one end fixed thereto is inserted into the groove 8a.
[0014]
The operation will be described below.
[0015]
The cooling air sucked by the fan 16 and sucked into the vehicle body from the louver 1a draws heat from the radiator 3 when passing through the radiator 3 and becomes warm air, and is directed toward the rear of the vehicle body from the hole 6 of the fan shroud 7 by the fan 16. Discharged. At this time, a part of the warm air colliding with the louver 2a on the rear surface 2 of the vehicle body is blown back and hits the seal rubber 10 as shown in FIG. However, since the other end of the seal rubber 10 is inserted into the groove 8a of the connecting member 8 fixed to the fan shroud 7, it does not come out of the groove 8a with a wind pressure of about blowback, so that warm air is sucked into the radiator. It is not caught on the side. Therefore, the performance of the radiator 3 is not deteriorated, and the engine water temperature is prevented from rising to a set value or more and being overheated.
[0016]
FIG. 3 shows another embodiment of the present invention, in which a sealing rubber 10 is formed in a rectangular shape having a plurality of (four in the illustrated example) bolt holes 23 on the side surface of the fan shroud 7. Except for being fixed with bolts 21 by 20, it is the same as in the first embodiment, and has the advantage of being fixed more firmly than in the first embodiment. Here, reference numeral 22 denotes a weld nut, which may be driven rivets in place of the bolts 21 and rivet holes provided on the side surfaces of the fan shroud 7, which has the advantage of easy processing and low cost.
[0017]
FIG. 4 shows another embodiment of the present invention, showing an example in which a duct for an intercooler (not shown) passes through the seal rubber 30, and a duct hole 31 is provided in the seal rubber 30. This is the same as in the first and second embodiments except that the notch 32 is provided between the end portion and the end portion, and the notch 32 may not be provided when the duct is attached after the seal rubber is attached.
[0018]
【The invention's effect】
The present invention is configured as described above. The degree of adhesion between the fan shroud and the seal rubber is improved, and the entrainment of hot air is reduced, so that the cooling performance is improved and the engine overheating in summer can be prevented.
[Brief description of the drawings]
FIG. 1 is a plan view of a radiator mounting portion at the rear of a vehicle body showing an embodiment of the present invention.
2 is a perspective view of the fan shroud of FIG. 1. FIG.
FIG. 3 is a perspective view of a fan shroud portion showing another embodiment of the present invention.
FIG. 4 is a perspective view showing another embodiment of a seal rubber.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Side surface 2 ... Rear surface 3 ... Radiator 5 ... Seal 7 ... Fan shroud 8 ... Connection member 8a ... Groove 10, 30 ... Seal rubber 15 ... Fan Pulley 16 ... Fan 20 ... Mounting member 31 ... Hole

Claims (3)

In the engine room (E) provided at the rear part of the rear engine bus body, a louver (1a) for supplying cooling air is formed on the side surface (1), and a louver (2a for discharging hot air) is formed on the rear surface (2). ) Is formed, and a radiator (3) is attached to the side of the engine room (E), and a fan shroud is provided downstream of the radiator (3) via a seal (5) made of sponge. (7) is mounted, and a fan (16) is provided in the hole (6) of the shroud (7). The fan (16) is driven to take in cooling air from the louver (1a) on the side surface of the radiator ( 3) In a device for preventing hot air from entraining a radiator having a structure for allowing the air to pass through and discharging from the rear louver (2a), a connection having grooves (8a) on both left and right sides of the shroud (7) The material (8) is fixed, a partition wall (9) with the engine is inserted into the groove (8a) of the connecting member (8) at the vehicle body center side, and a plate-like elastic body is provided on the vehicle body side surface (1). A seal member (10) formed at the end of the connecting member (8) is fixed to the vehicle body side surface (1) side of the shroud (7). The other end of the seal member (10) is inserted into the radiator to prevent the hot air from being entrained in the radiator. In the engine room (E) provided at the rear part of the rear engine bus body, a louver (1a) for supplying cooling air is formed on the side surface (1), and a louver (2a) for discharging hot air is formed on the rear surface (2). The radiator (3) is attached to the side of the engine room (E), and the fan shroud (5) is provided on the downstream side of the radiator (3) via a seal (5) made of sponge. 7) is mounted, and a fan (16) is provided in the hole (6) of the shroud (7), and the fan (16) is driven to take cooling air from the louver (1a) on the side surface of the radiator (3 ) Through which the air is discharged from the rear louver (2a), in the radiator hot air entrainment prevention device, the shroud (7) has a groove (8a) on the side surface on the vehicle body center side. The connecting member (8) is fixed, a partition wall (9) with the engine is inserted into the groove (8a) of the connecting member (8), and the shroud (7) has a plate-like shape on the side surface (1) of the vehicle body. A sealing member (10) formed of an elastic body is provided, and the sealing member (10) is fixed by a plate-like mounting member (20) having a plurality of bolt holes (23) on the side surface of the shroud (7). A device for preventing entrainment of warm air in a radiator. 3. Prevention of a hot air entrainment device for a radiator according to claim 1 or 2, wherein a hole (31) through which a duct passes is provided in the seal member (10 or 30).

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