JPH0655943A - Engine-related radiator in vehicle - Google Patents

Abstract

(57) [Summary] [Structure] Inside the engine room 1, a pair of radiators 4 ₁ and 4 ₂ through which a radiator related to the engine, for example, an intercooler refrigerant flows, are separately arranged on the left and right. After the refrigerant flows to the second radiator 4 ₂ arranged on the upstream side of the air cleaner 6 on the side opposite to the air intake duct 7, it flows to the first radiator 4 ₁ arranged on the same side as the duct 7 for the first heat radiation. to reduce the heat radiation amount of vessels 4 _1. [Effect] The effect of the waste heat of the radiator on the air intake duct is reduced, and the rise in intake air temperature is suppressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine-related heat dissipation device for a vehicle in which a heat radiator related to the engine, for example, a heat radiator for a refrigerant of an intercooler is arranged in an engine room of the vehicle.

[0002]

2. Description of the Related Art Conventionally, according to Japanese Patent Laid-Open No. 2-225134, an oil cooler, which is a radiator related to an engine, is divided into right and left sides so as not to interfere with a radiator for engine cooling water arranged in a front portion of an engine room. It is known that it is arranged.

[0003]

By the way, the intake passage of the engine is generally arranged such that the outside air introduction port at the upstream end thereof is located on one side of the engine room. When divided, the waste heat of the oil cooler arranged on the same side as the outside air inlet affects the intake passage, and the intake air temperature rises to lower the charging efficiency and reduce the durability of the intake passage. And various other problems occur. In view of the above points, an object of the present invention is to provide a device capable of reducing the influence of the waste heat of the radiator on the intake passage of the engine as much as possible.

[0004]

[Means for Solving the Problems] In order to achieve the above object,
According to the present invention, in which a radiator related to an engine is divided and arranged in an engine room of a vehicle, the radiator is arranged at a place where a waste heat is likely to affect an intake passage of the engine among the plurality of divided radiators. It is characterized in that the heat radiation amount of the radiator is set smaller than that of other radiators.

[0005]

[Effect] Even if one of the divided radiators is arranged in the place where the waste heat is likely to be affected in the intake passage of the engine, the amount of heat dissipated by the radiator is set small, so that the influence of the waste heat in the intake passage is affected. Is reduced, and the rise in intake air temperature is suppressed. In order to improve the total heat dissipation efficiency of a plurality of divided radiators, the series method in which the refrigerant flows in series to the plurality of radiators is more advantageous than the parallel method, and in this case, waste heat is likely to be affected. If the radiator is arranged on the downstream side of the refrigerant passage with respect to the other radiator, the refrigerant cooled to some extent by the other radiator will flow to the radiator which is likely to be affected by waste heat. The amount of heat radiation is smaller than other heat radiators.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, reference numeral 1 denotes an engine room of an automobile. In a front part of the engine room 1, a radiator 2 for flowing cooling water for an engine E is arranged and a refrigerant for an intercooler 3 is flowed. A pair of divided radiators 4 ₁ , 4 ₂
Are arranged on both left and right sides of the radiator 2.

As shown in FIGS. 2 and 3, an air cleaner 6 is provided on the apron of the wheel house 1a on one side of the engine room 1, and an air intake passage on the upstream side of the air cleaner 6 is provided. The intake duct 7 is circulated below the side frame 1b below the wheel house 1a and is raised in the space inside the fender 1c.
The outside air is taken in through the outside air introduction port 7a at the upper end of the air cleaner 6, and the air purified by the air cleaner 6 is supplied to the cleaner 6 as shown in FIG.
Of the engine E through the intercooler 3 and the throttle body 10 to guide the air compressed by the supercharger 9 through the air duct 8 on the downstream side of the engine.
To be supplied to.

By the way, when the radiators 4 ₁ and 4 ₂ are divided and arranged on the left and right sides as described above, the air intake duct 7 is formed.
However, it is easily affected by the waste heat from the _first radiator 4 ₁ arranged on the same side as this. That is, a part of the air heated by the heat dissipation of the intercooler refrigerant in the first radiator 4 ₁ bypasses the bulkhead side panel 1d provided at the front end of the wheel house 1a as shown by an arrow a in FIG. Flow into the space inside the fender 1c, and the heated air flows into the air intake duct 7 arranged inside the fender 1c, so that the intake air temperature easily rises.

Therefore, in this embodiment, the intercooler 3 is used.
The refrigerant from the first radiator 4 ₁ after flowing into the second radiator 4 ₂ arranged on the opposite side of the air intake duct 7, and the amount of heat radiation in the first radiator 4 ₁ is equal to the second radiator 4 1. _It is smaller than ₂ . In detail, the refrigerant is circulated between the intercooler 3 and the radiators 4 ₁ and 4 ₂ by the pump 12, and the tube 13 ₁ connected to the refrigerant outlet of the intercooler 3 is connected to the second radiator 4 ₂ . Refrigerant, which is connected to the first radiator 4 ₁ and is cooled to some extent by heat radiation from the second radiator 4 ₂ , flows into the first radiator 4 ₁ via the tube 13 ₂ and the tube 13 ₃ and the pump are pumped from the first radiator 4 _1. The refrigerant is returned to the intercooler 3 via 12 and the tube 13 ₄ . In this manner, by reducing the heat radiation amount of the first radiator 4 _1, waste heat influence of the first radiator 4 ₁ is reduced relative to the air intake duct 7, increase in the intake air temperature can be suppressed.

[0010] The air flow of arrow a as described above flows through the notch 1e formed in the lower portion of the bulkhead side panels 1d, wherein the first radiator 4 _1, as shown in FIG. 3,
Since the lower half portion thereof is arranged so as to face the notch portion 1e, the air that has mainly passed through the lower half portion of the first radiator 4 ₁ becomes the air flow of arrow a and flows toward the air intake duct 7 side. It will be. Accordingly, in this embodiment, from the upper tank 4a side to the first radiator 4 ₁ toward the lower tank 4b side flowing refrigerant, the heat radiation amount in the lower half of the first radiator 4 ₁ than the upper half By making it small, the influence of the waste heat of the first radiator 4 ₁ on the air intake duct 7 was reduced as much as possible.

In this embodiment, the refrigerant tube 13 is used.
₁ , _{1 3} are arranged along the downstream half of the air intake duct 7 exposed in the engine room 1 so that the heat influence from the engine E side on the air intake duct 7 can be suppressed.

[0012] In the above embodiment, the first radiator 4 by ₁ to shed refrigerant through the second radiator 4 ₂ first radiator 4 ₁
Of but a heat radiation amount is set relatively small, it is not limited thereto, it may be to reduce the heat radiation amount possible to reduce the size of the first radiator 4 _1. Further, the present invention can be applied to the case where other radiators related to the engine, for example, oil coolers are arranged separately.

[0013]

As is apparent from the above description, according to the present invention, it is possible to reduce the influence of the waste heat of the radiator on the intake passage of the engine and suppress the rise in intake air temperature, thereby reducing the charging efficiency and reducing intake air. It has the effect of eliminating problems such as deterioration of the durability of the passage.

[Brief description of drawings]

FIG. 1 is a plan view showing a layout of an example of the device of the present invention.

FIG. 2 is a perspective view in which a radiator of the main part is omitted.

FIG. 3 is a sectional view taken along the line III-III in FIG.

[Explanation of symbols]

1 Engine room 4 ₁ , 4 ₂ Radiator 7 Air intake duct (intake passage)

Claims (2)

[Claims] 1. A radiator in which an engine-related radiator is dividedly arranged in an engine room of a vehicle, and the radiator is arranged in a place where a waste heat is likely to affect an intake passage of the engine among a plurality of divided radiators. A heat dissipation device for an engine in a vehicle, characterized in that the heat dissipation amount of the heatsink is set smaller than that of other heatsinks. 2. A radiator arranged at a place where waste heat is easily influenced by an intake passage of an engine is arranged downstream of another radiator in the refrigerant passage. An engine-related heat dissipation device in the vehicle described.