JP2009012599A - Radiator seal structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radiator seal structure capable of enhancing cooling performance of a radiator as compared with a conventional one. <P>SOLUTION: In the structure that width end parts of an upper tank and a lower tank vertically arranged with a space and provided with heat release part between them are connected by a pair of radiator supports 8 extending in a vertical direction and the radiator 3 is supported from a chassis frame side through the respective radiator supports 8. A seal means 16 for air-tightly closing a clearance between the heat release part 5 of the radiator 3 and the radiator support 8 is provided. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a radiator seal structure.

  As shown in a side view from the left side of the vehicle in FIG. 2, generally, a radiator 3 for air-cooling water-cooled coolant of the engine 2 is disposed at a front position of the engine 2 mounted on the chassis frame 1 of the vehicle. Is provided forcibly sucking outside air through the cooling fan 4 on the front side of the engine 2 through the radiator 3 to help dissipate the coolant as a cooling medium, and prevent overheating of the engine that causes knocking and poor lubrication. It is like that.

  That is, as shown in the front view of FIG. 3, the radiator 3 (core part) of the radiator 3 includes a large number of water pipes provided with radiation fins between the upper tank 6 and the lower tank 7 that are spaced apart from each other. It is configured to be forested, and while the coolant that has been warmed through the engine 2 flows down from the upper tank 6 to the water pipes of the heat radiating section 5, The coolant is exposed to the flow and air-cooled, and the air-cooled coolant is collected in the lower lower tank 7 and circulated again to the engine 2.

  Here, since the heat radiating portion 5 of the radiator 3 as described above is structurally fragile and does not have sufficient strength, the high-strength radiator in which the width ends of the upper tank 6 and the lower tank 7 extend vertically. The radiator 3 is supported by the bracket 9 from the chassis frame 1 side via the radiator support 8.

  Further, as shown in a plan view in which a main part is partially broken in FIG. 4, a short cylindrical air guide tube portion 10 for increasing the efficiency of the cooling fan 4 is opened on the back surface of the heat radiating portion 5 of the radiator 3. The fan shroud 11 (wind guide cover) is disposed and attached to the back of the left and right radiator supports 8 with bolts, resin clips, or the like.

  In the figure, reference numeral 12 denotes an intercooler for air-cooling intake air that has been supercharged by a turbocharger (not shown) and rises in temperature, 13 is a heat radiating portion of the intercooler 12, and 14 is disposed on both sides of the heat radiating portion 13. The intercooler tank is shown, and the intercooler 12 is arranged at a lower position on the front surface of the radiator 3 (see FIG. 2).

Further, as prior art document information related to this type of radiator seal structure, the following Patent Document 1 and the like by the same applicant as the present invention already exist.
Japanese Patent Laid-Open No. 2003-129846

  However, in the conventional structure as described above, each radiator support 8 is not designed to directly support the fragile heat radiating portion 5 just by connecting the upper tank 6 and the lower tank 7. There is a gap 15 between the radiating portion 5 and the heat radiating portion 5, and a flow in which a part of the outside air bypasses the radiating portion 5 through the gap 15 and is sucked into the cooling fan 4 is formed in the engine 2. There is a problem that the cooling performance of the radiator 3 is deteriorated because the blown wind becomes hot air and a flow is formed to blow back through the gap 15 and in front of the radiator 3.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a radiator seal structure capable of improving the cooling performance of the radiator as compared with the conventional art.

  In the present invention, the upper and lower tanks, which are spaced apart from each other in the vertical direction and have a heat radiating portion between them, are connected to each other by a pair of radiator supports extending in the vertical direction from the chassis frame side through the radiator supports. In the structure for supporting the radiator, there is provided a sealing means that hermetically closes a gap between the heat radiation portion of the radiator and the radiator support.

  Thus, in this way, as a result of the sealing means airtightly closing the gap between the radiator radiating portion and the radiator support, a part of the outside air flows around the radiating portion through this gap, Since the situation where the wind that hits the engine becomes hot air and blows back in front of the radiator does not occur, the cooling performance of the radiator is greatly improved compared to the conventional case.

  Further, when carrying out the present invention more specifically, for example, it is possible to configure the sealing means by urethane sponge molded according to the shape of the gap between the radiator heat dissipating part and the radiator support. .

  Furthermore, when an intercooler is installed on the front surface of the radiator, an overhanging portion that projects toward the front so that the gap between the back surface of the intercooler and the radiator support can be closed together is a sealing means. It is preferable that the number of air-conditioners is increased, and in this way, a situation in which outside air does not flow through the gap between the back surface of the intercooler and the radiator support without passing through the intercooler does not occur. It becomes possible to cool the intercooler efficiently.

  In addition, the wind that hits the engine turns into hot air and goes around the outside of the radiator support, preventing the flow from blowing back to the front of the radiator through the gap between the back of the intercooler and the radiator support. It will be improved more reliably.

  According to the radiator seal structure of the present invention described above, various excellent effects as described below can be obtained.

  (I) According to the first and second aspects of the present invention, the gap between the radiator heat-radiating portion and the radiator support is hermetically closed by the sealing means, so that a part of the outside air passes through the gap. It is possible to surely prevent the situation where the wind that hits the engine bypasses the heat dissipation section or the wind that hits the engine turns into hot air and blows back in front of the radiator through the gap, greatly improving the cooling performance of the radiator Can be improved.

  (II) According to the invention described in claim 3 of the present invention, the inflow of outside air that does not pass through the intercooler can be reliably prevented, and the intercooler can be efficiently air-cooled by suction of the cooling fan. The cooling performance of the intercooler can be greatly improved, and the wind that hits the engine turns into hot air and wraps around the outside of the radiator support, and from the gap between the back of the intercooler and the radiator support, Since the flow which blows back before can also be prevented, the cooling performance of a radiator can also be improved more reliably.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows an example of an embodiment for carrying out the present invention, and the same reference numerals as those in FIGS. 2 to 4 denote the same components.

  As shown in FIG. 1, in the present embodiment, the radiator seal structure configured in substantially the same manner as that of FIGS. 2 to 4 described above, the gap 15 between the heat radiating portion 5 of the radiator 3 and the radiator support 8, The sealing means 16 made of urethane sponge molded according to the shape of the gap 15 is pushed in and installed so that the gap 15 between the heat radiating portion 5 of the radiator 3 and the radiator support 8 is airtightly closed. ing.

  In the example shown here, since the intercooler 12 is mounted on the front surface of the radiator 3, the back surface of the intercooler tank 14 mounted on the left and right of the intercooler 12 and the radiator support 8. A projecting portion 18 projecting forward is added to the sealing means 16 so as to close the gap 17 therebetween.

  Thus, as a result of the sealing means 16 sealingly closing the gap 15 between the heat radiating portion 5 of the radiator 3 and the radiator support 8, a part of the outside air is passed through the gap 15. As a result, all the outside air sucked by the cooling fan 4 flows through the heat radiating part 5 of the radiator 3 and the cooling performance of the radiator 3 is greatly improved.

  Furthermore, since the overhanging portion 18 projecting forward is added to the sealing means 16 so that the gap 17 between the back surface of the intercooler tank 14 and the radiator support 8 can be closed together, A situation in which outside air flows without passing through the intercooler 12 does not occur, and the intercooler 12 can be efficiently air-cooled by the suction of the cooling fan 4.

  In addition, since the wind that hits the engine 2 becomes hot air and flows around the outside of the radiator support 8, a flow that blows back from the gap 17 between the back surface of the intercooler 12 and the radiator support 8 to the front of the radiator 3 is also prevented. The cooling performance of the radiator 3 will be improved more reliably.

  Therefore, according to the above embodiment, the gap 15 between the heat radiating portion 5 of the radiator 3 and the radiator support 8 is hermetically closed by the sealing means 16, so that a part of the outside air passes through the gap 15 to block the heat radiating portion 5. It is possible to reliably prevent the situation where the wind that hits the engine 2 or the wind that hits the engine 2 becomes hot air and blows back in front of the radiator 3 through the gap 15, and the cooling performance of the radiator 3 is greatly improved compared to the conventional case. Can be improved.

  In addition, the overhanging portion 18 of the sealing means 16 can reliably prevent the inflow of outside air that does not pass through the intercooler 12, and the intercooler 12 can be efficiently cooled by the suction of the cooling fan 4. The cooling performance of the intercooler 12 can be greatly improved, and the wind hitting the engine 2 turns into hot air and wraps around the outside of the radiator support 8, and the gap between the back surface of the intercooler 12 and the radiator support 8. Since the flow which blows back from 17 to the front of the radiator 3 can also be prevented, the cooling performance of the radiator 3 can be improved more reliably.

  The radiator seal structure of the present invention is not limited only to the above-described embodiments, and the sealing means is not limited to the illustrated examples, and various modifications can be made without departing from the scope of the present invention. Of course.

It is the top view which fractured partially an example of the form which carries out the present invention. It is a side view which shows a prior art example. It is a front view of the radiator of FIG. It is the top view which fractured | ruptured the prior art example of FIG. 2 partially.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Chassis frame 3 Radiator 4 Cooling fan 5 Radiating part 6 Upper tank 7 Lower tank 8 Radiator support 12 Intercooler 15 Gap 16 Sealing means 17 Gap 18 Overhang part

Claims (3)

  The upper tank and the lower tank, which are spaced apart from each other and have a heat radiating portion between them, are connected to each other by a pair of radiator supports extending in the vertical direction, and the radiator is supported from the chassis frame via each radiator support. In the structure, a radiator seal structure characterized in that sealing means is provided for hermetically closing a gap between a radiator heat dissipation portion and a radiator support.   2. The radiator seal structure according to claim 1, wherein the sealing means is constituted by a urethane sponge molded according to the shape of the gap between the heat radiating portion of the radiator and the radiator support.   When an intercooler is installed on the front of the radiator, an overhanging part that protrudes forward is added to the sealing means so that the gap between the back of the intercooler and the radiator support can be closed together. The radiator seal structure according to claim 1, wherein:

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