JP2006218975A - Vehicular radiator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular radiator enabling low-speed self-traveling even when a shutter breaks down. <P>SOLUTION: As a side core 4b which is not covered by the shutter 7 is provided, even in case that a center core 4a is blocked by the broken-down shutter 7, the side core 4b can cool engine cooling water, so that low-speed self-traveling at the time of emergency is enabled. Though the side core 4b is provided at a generally front position of a front wheel 12 where air flow is generated at the time of traveling, air E passing through the side core 4b does not directly hit an engine P, and the air E passing through the side core 4b is discharged while getting surrounding cold air involved therein, so that warming-up promotion of the engine P is kept. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle radiator.

  A radiator is disposed in front of the engine room at the front of the automobile, and an engine is disposed behind the radiator. The engine coolant heated by the engine is circulated to the radiator, cooled by the air passing therethrough, and returned to the engine. The air that has passed through the radiator hits the engine and takes heat directly from the surface of the engine.

  Thus, the radiator is installed to cool the engine. However, in some cases, you may want to stop the function. For example, there is a case where it is desired to promote warm-up of the engine while traveling in winter.

Therefore, a radiator having a structure in which the entire surface is covered with an openable / closable shutter is known. That is, when it is desired to stop the engine cooling function and promote warm-up, the shutter is closed to prevent the passage of air to the radiator. If it does so, the engine cooling water will not be radiated by the radiator, and the engine will not be directly cooled by the air that has passed through the radiator. Therefore, warm-up of the engine can be promoted while traveling. When the temperature of the engine has increased sufficiently and the engine needs to be cooled, the shutter is opened and air is passed through the radiator (see, for example, Patent Document 1).
JP 2002-225573 A (FIG. 22)

  However, in such a radiator with a shutter, if the shutter fails, the engine's cooling function will be stopped at all, and the engine will overheat if it is run in that state. For this reason, it is inconvenient that even a self-propelled vehicle cannot travel to a repair shop at a low speed.

  The present invention has been made paying attention to such a conventional technique, and provides a vehicle radiator that enables low-speed self-running even when a shutter failure occurs.

  The invention according to claim 1 is characterized in that it has a center core covered with a shutter that can be opened and closed substantially on the entire surface, and a side core that is not covered with the shutter, and the side core is provided at a substantially forward position of the front wheel. To do.

  According to the first aspect of the present invention, since the side core that is not covered by the shutter is provided, even when the center core is blocked by the failed shutter, the engine coolant can be cooled by the side core. This enables low-speed self-running in an emergency. The side core is provided at a position approximately in front of the front wheels where air flows during driving, but the air that has passed through the side core does not directly hit the engine, and the air that has passed through the side core entrains the cold air around the engine. Since it is discharged, the warm-up promotion of the engine is maintained.

  For the purpose of providing a radiator for a vehicle that enables low-speed self-propelled operation even when a shutter failure occurs, the vehicle has a center core that is covered with a shutter that can be opened and closed substantially, and a side core that is not covered with the shutter, This was achieved by providing a side core approximately in front of the front wheels. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 4 are diagrams showing an embodiment of the present invention. In FIG. 1, the arrow A direction indicates the front side, the B direction indicates the rear side, the C direction indicates the right side, and the D direction indicates the left side.

  A radiator core panel 1 penetrating in the front-rear direction is disposed in front of the engine room R of the automobile. The radiator core panel 1 is connected to a vehicle body such as a front side member (not shown) via left and right brackets 2. Inside the radiator core panel 1, a condenser 3 for cooling the air-conditioning refrigerant is arranged on the right side, and a radiator 4 for cooling the engine cooling water is installed on the left side.

  The capacitor 3 has a large center core 3a and a small side core 3b, and tanks 3c are installed on the upper and lower sides, respectively. The radiator 4 is the same, and has a large center core 4a and small side cores 4b, and tanks 4c are installed above and below, respectively. The center cores 3a and 4a are arranged straight from side to side, but the side cores 3b and 4b are arranged obliquely. An engine P is installed behind the center cores 3a and 4a.

  In the center cores 3a, 4a and the side cores 3b, 4b, a plurality of flat tubes 5, 6a, 6b are formed between the upper and lower tanks 3c, 4c (see FIG. 4), and a wavy fin (not shown) is formed between them. ing. The engine cooling water and the air conditioning refrigerant are cooled by the air E passing between the tubes 5, 6a, and 6b. The tubes 5 of the center cores 3a and 4a are all along the front-rear direction. In the side cores 3b and 4b, the inner tube 6a is along the front-rear direction, but the outer tube 6b is tilted inward. .

  A shutter 7 is disposed on the entire surface behind the center cores 3a and 4a. The shutter 7 has a plurality of doors 7a that can be opened and closed in the vertical direction. When the door 7a is in a horizontal state "open" (see FIG. 2), the air E can pass through the center cores 3a and 4a. The state in which all the doors 7a are facing downward and overlapping each other is “closed” (see FIG. 2), the center cores 3a and 4a are closed, and the air E cannot pass through the center cores 3a and 4a. The shutter 7 is controlled by a sensor that detects the temperature of the engine P. The shutter 7 is “closed” until the engine P reaches a predetermined temperature, and “open” when the temperature exceeds the predetermined temperature.

  A grille 9 is formed at the center of the front bumper 8 located in front of the center cores 3a and 4a. A fan shroud 10 is provided behind the center cores 3a and 4a. A pair of fans 11 are supported on the fan shroud 10. Like the shutter 7, the fan 11 is controlled by a sensor that detects the temperature of the engine P, and rotates when the engine P reaches a predetermined temperature.

  Front wheels 12 are provided on the left and right sides of the engine P via axles. The front wheel 12 is located in the tire house 13. Inside the front wheel 12, a brake portion 14 made of a disk and a pad is provided.

  Air intakes 15 are formed at the left and right ends of the front bumper 8 located in front of the front wheel 12, and ducts 16 are formed from the air intakes 15. The rear side of the duct 16 is thin, and the air discharge port 16a at the rear end thereof is inclined obliquely outward toward the brake portion 14 of the front wheel 12.

  The side cores 3b and 4b and the tanks 3c and 4c are disposed in the duct 16, respectively. A fan 17 is also installed behind the side cores 3b and 4b. The fan 17 is also controlled by a sensor that detects the temperature of the engine P, and rotates when the engine P reaches a predetermined temperature.

  Next, the operation will be described. Since the radiator 4 and the capacitor 3 have substantially the same function, only the radiator 4 will be described below as a representative.

  When the vehicle starts running and the temperature of the engine P has not risen sufficiently, the shutter 7 of the center core 4a is “closed” and the fans 11 and 17 do not rotate. Since heat exchange of the engine coolant in the large center core 4a is not performed, warm-up of the engine P is promoted. Further, since the air E does not pass through the center core 4a, the air E that has passed through the center core 4a does not directly hit the engine P, so that warm-up is also promoted in this respect.

  Although the air E passes through the side core 4b due to the ram pressure during traveling, the heat exchange capability in the side core 4b is small, and thus does not significantly affect the warm-up promotion of the engine P. Further, since the air E that has passed through the side core 4b does not directly hit the engine P, and the air E that has passed through the side core 4b is discharged by taking in the cold air remaining around the engine P, warming up of the engine P is promoted. Is maintained.

  When the temperature of the engine P is sufficiently increased, the shutter 7 is “open”, and the fans 17 of the center core 4a and the side core 4b also rotate. Therefore, heat exchange of the engine cooling water at the center core 4a and the side core 4b is sufficiently performed, and the engine P can be cooled. The engine P can also be cooled by directly applying the air E that has passed through the center core 4a to the engine P.

  In addition, since the air E that has passed through the side core 4b is discharged with the hot air around the engine P around this time, the pressure in the space behind the center core 4a decreases, and the amount of air entering the center core 4a increases. The performance of the radiator 4 can be improved when the vehicle is stopped with a heavy load (during idling).

  Furthermore, since the air E that has passed through the side core 4b is blown from the air discharge port 16a of the duct 16 to the brake part 14 and cools the brake part 14, the performance of the brake part 14 is also improved. Since the tube 6b outside the side core 4b is inclined inward along the shape of the duct 16, the air E flows smoothly along the shape of the duct 16 without resistance.

  As described above, when the temperature of the engine P rises, the shutter 7 is opened, and the engine P is cooled by both the center core 4a and the side core 4b. Due to this failure, even if the temperature of the engine P rises, the shutter 7 may not be opened and may remain in the “closed” state. However, in this embodiment, since the side core 4b without the shutter 7 is provided separately from the center core 4a, the minimum cooling of the engine coolant is possible by this side core 4b. Therefore, in order to repair the malfunction, it is possible to run at a low speed to the repair shop, which is convenient.

  In the above embodiment, the example in which the capacitor 3 and the radiator 4 are arranged side by side has been shown.

The perspective view which shows the radiator and capacitor | condenser which concern on one Example of this invention. The longitudinal cross-sectional view which shows the opening-and-closing state of the shutter in the radiator of FIG. The partially broken top view which shows the structure in the engine room containing the radiator and capacitor | condenser of FIG. Explanatory drawing which shows the tube of the center core and side core in FIG.

Explanation of symbols

1 Radiator Core Panel 2 Bracket 3 Capacitor 3a Center Core 3b Side Core 3c Tank 4 Radiator 4a Center Core 4b Side Core 4c Tank 5, 6a, 6b Tube 7 Shutter 8 Front Bumper 12 Front Wheel 14 Brake 16 Duct E Air P Engine R Engine Room

Claims (1)

A center core (4a) covered with a shutter (7) that is openable and closable on substantially the entire surface, and a side core (4b) not covered with the shutter (7),
A radiator for a vehicle, wherein the side core (4b) is provided at a position substantially in front of the front wheel (12).

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