KR101846558B1 - Non- Shroud type Cooling Apparatus - Google Patents

Abstract

The cooling apparatus of the present invention is installed in a shroud position space K in which a shroud is removed from one side of an engine room E and an engine room partition panel 50 to form a fixing force and a cooling module for converting the high temperature engine cooling water discharged from the engine 60 into the low temperature engine cooling water through the air flow of the engine room, Since the air flowing into the engine room E is directly introduced into the radiator 10 without passing through the intercooler 20, it is possible to minimize the dead zone and improve the cooling performance. Particularly, It has features that can be improved than Sungdo.

Description

Shroud Type Cooling Apparatus [0002]

The present invention relates to a cooling device, and more particularly, to a cooling device that maximizes air flow in an engine room by combining an intercooler and a radiator so as to minimize a dead zone, and a shroudless Type cooling apparatus.

In general, a commercial vehicle such as a bus mounts the engine to the rear of the vehicle, so that the cooling device is mounted as one side space of the engine room provided at the rear side.

The cooling system of the bus is a water-cooled type in which the temperature of the bus is forcibly cooled by forcibly cooling the superheated engine so that the performance of the engine can be maximized. The cooling water cooled by the heat exchanged with the air, A water pump is used to forcibly circulate the water to the water jacket.

In addition, in the case of a cooling apparatus applied to an engine equipped with a turbocharger for improving the engine output, an intercooler for cooling the temperature of the intake air pressurized by the turbocharger is further applied.

Generally, the cooling device is modularized into a cooling module in consideration of the layout of the engine room. Examples of the cooling module include a radiator, an intercooler, a surge tank, and a cooling fan. The cooling device includes a shroud, As shown in FIG.

When such a cooling module is applied to a truck, it has a layout in which a cooling fan is directly connected to the engine.

On the other hand, when such a cooling module is applied to the bus, the cooling module is placed horizontally in the engine room, so that the cooling fan is connected by a pulley.

Generally, the layout of the cooling module applied to the bus is such that the cooling fan is positioned to blow air from the inside to the outside of the engine room, the cooling fan is connected to the air intake path in the order of shroud, radiator and intercooler, The surge tank is connected separately.

Therefore, when the cooling fan is rotated, the cooling module mainly forcibly sucks the air in the front of the intercooler, and the sucked air flows in the order of the intercooler, the radiator and the cooling fan to cool the high temperature cooling water.

In recent years, regulation on emission of a vehicle tends to become more stringent, and as a result, engine cooling performance is increased due to improvement in engine performance, which inevitably leads to higher cooling performance of the cooling module.

Korean Patent Publication No. 10-2004-0008702 (Jan. 31, 2004)

This patent document shows an example of a technique in which improved cooling performance is achieved by improving the mounting structure of a radiator and an intercooler in a bus cooling module.

To this end, the patent document discloses that a radiator is mounted on an upper side of a support connecting a deck frame of a bus body and a skirt rail, and an intercooler for cooling an intake air pressurized by the turbocharger maintains a predetermined gap in front of the radiator The lower tank of the intercooler is attached to the intercooler support, and the upper tank of the intercooler is attached to the engine room partition panel.

Therefore, the patent document discloses that the radiator and the intercooler are separately supported in respective supports, and a predetermined gap is maintained between the radiator and the intercooler, so that the weight of the intercooler exerts a burden on the radiator, whereby the durability of the radiator and the intercooler is improved In addition, the performance of the belt can be improved by improving the alignment of the belt for rotating the cooling fan of the radiator.

However, in the above-mentioned patent document, the performance improvement of the cooling module is pursued by using the intercooler-radiator coupling structure. In order to improve the performance of the cooling module through the intercooler and the radiator, There is a limitation that can not keep up with the cooling performance.

Therefore, in order to meet the cooling performance demanded by the improved engine due to the enhanced emission regulation, it is necessary to increase the size of the cooling module or to improve the cooling performance. However, in order to increase the cooling module size Is inevitably limited due to the limited engine room to be considered.

In view of the above, it is an object of the present invention to provide an air conditioner which maximizes the air flow inside an engine room by a combined structure of an intercooler and a radiator with a minimized dead zone, and in particular, And the cooling performance is greatly improved by directly flowing into the radiator.

It is another object of the present invention to provide a shroudless type cooling apparatus in which the layout of an engine room is more efficiently realized by installing an intercooler and a radiator without a shroud.

According to an aspect of the present invention, there is provided a cooling device for a vehicle, comprising: an engine room having a shroud in a shroud position space from which a shroud is removed from one side of an engine room; A cooling module for converting the high temperature engine cooling water from the engine into the low temperature engine cooling water by the air flow of the engine room;

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Wherein the cooling module comprises: a cooling fan rotated by the engine to discharge air sucked in the radial direction together with the axial direction; An intercooler which sucks air by rotation of the cooling fan and forms a ventilation passage through which the sucked air escapes to the cooling fan; And a radiator that exchanges air with the high temperature cooling water while passing air sucked by the air passage of the intercooler and sends the low temperature cooling water converted to the heat exchange function back to the engine.

The cooling fan includes a fan having a blade, a fan pulley connected to the fan, a belt connecting the fan pulley to be rotated by the engine, and a mounting frame coupled with the intercooler.

The intercooler is composed of a cylinder body having a first cooler tank at the front side and a rear side at the rear side, and the cylinder body has a hollow cylinder shape.

The hollow cylinder shape forms a blowing passage for air sucked by the cooling fan, and a fan forming the cooling fan is inserted into an inner space of the blowing passage.

The radiator includes a cooling cell in which heat is exchanged between blowing air passing therethrough and high temperature cooling water, an upper tank coupled to an upper portion of the cooling cell to allow the high temperature cooling water from the engine to flow therein, And a lower tank coupled to a lower portion of the cooling cell so as to be sent again.

The intercooler is positioned between the upper tank and the lower tank. The upper tank and the lower tank are in close contact with each other while surrounding the outer circumferential surface of the intercooler. The upper tank and the lower tank are surrounded by the intercooler Is formed in a circular shape.

According to the present invention, the air flow in the engine room is maximized by combining the intercooler and the radiator so that the dead zone is minimized. In particular, the air sucked into the cooling fan flows directly into the radiator without passing through the intercooler, Thereby reducing the size of the single product and reducing the cost.

Further, according to the present invention, the layout of the engine room can be more efficiently realized by installing the intercooler and the radiator without the shroud, and in particular, the space utilization of the engine room due to the replacement of the shroud is further improved.

2 is a view illustrating a shroudless type cooling module according to the present invention. FIG. 3 is a cross-sectional view illustrating a shroudless type cooling module according to the present invention. FIG. 4 is a radiator cooling performance of a shroudless type cooling module according to the present invention, and FIGS. 5 to 8 are performance diagrams according to a layout change of a shroudless type cooling module according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which illustrate exemplary embodiments of the present invention. The present invention is not limited to these embodiments.

1 shows a configuration of a shroudless type cooling module constituting a cooling device according to the present embodiment.

As shown in the figure, the cooling module includes a radiator 10 for converting high-temperature cooling water discharged from the engine into low-temperature cooling water through a heat exchange function and returning it to the engine, and a radiator 10 positioned on one side of the radiator 10, An intercooler 20 that forms a space through which air flows, and a cooling fan 30 that is rotated by the engine to draw air in the radial direction together with the axial direction.

The radiator 10 includes a cooling cell 11 for exchanging heat between passing blowing air and high temperature cooling water and a nipple 13 for introducing high temperature cooling water from the engine. An upper tank 12 and a lower tank 14 coupled to a lower portion of the cooling cell 11 with a nipple 15 for sending low temperature cooling water back to the engine.

The unit cells are arranged vertically between the upper tank 12 and the lower tank 14, and the unit cells are arranged vertically between the upper tank 12 and the lower tank 14, And has a layout in which air passes between the cells.

The upper tank 12 forms a storage space for delivering the high temperature cooling water that has entered the nipple 13 to the cooling cell 11 and the low temperature cooling water from the cooling cell 11 is supplied to the nipple 15 To form a storage space.

The upper tank 12 and the lower tank 14 are in close contact with the intercooler 20 attached to the cooling cell 11 and form a fixing force with the intercooler 20.

For this purpose, the upper tank 12 and the lower tank 14 are formed in an arc shape so that a portion of the upper tank 12 and the lower tank 14 closely contacting the intercooler 20 has the same diameter as the diameter of the intercooler 20.

The nipple 13 of the upper tank 12 and the nipple 15 of the lower tank 14 are provided on either one of the right and left sides.

The intercooler 20 is provided with first and second cooler tanks 21 and 22 respectively forward and rearward and a cylinder body 23 is connected to the first and second cooler tanks 21 and 22.

Therefore, the intercooler 20 can form a hollow space for partially enclosing the cooling fan 30, and the empty space acts as a passage through which air flows by forming a cylinder-shaped cylindrical space.

Nipples are provided in the first cooler tank 21 and the second cooler tank 22, respectively.

The cooling fan 30 includes a fan 31 having a blade, a fan pulley 32 connected to the fan 31, a belt (not shown) for connecting the fan pulley 32 to a pulley driven by the engine 60 And a mounting frame 34 for coupling the fan 31 together with a fixing bracket 35 for mounting the fan pulley 32. [

The fan 31 is positioned inside the intercooler 20 so as to be surrounded by the intercooler 20.

The fan pulley 32 includes an on-off clutch for controlling the operation of the fan 31. The mounting frame 34 is formed with a fastening portion for engaging with the intercooler 20. [

2 shows the installation and operation state of the shroudless type cooling module according to the present embodiment.

The cooling module provided in the engine room E is arranged in the shroud position space K formed on one side of the engine compartment panel 50 for partitioning the vehicle interior space and the engine room E.

In the layout of the cooling module, a shroud is not installed in the shroud position space K. This is because the cooling module, in which the radiator 10, the intercooler 20, and the cooling fan 30 are assembled together, The intercooler 20 of the cooling module is coupled to the engine compartment panel 50 so that the cooling module can be fixed.

The cooling module installed in the shroud position space K is constructed such that the upper tank 12 and the lower tank 14 of the radiator 10 are connected to the engine cooling water line and the first cooler tank 21 and the second cooler tank 21 of the intercooler 20, 2 cooler tank 22 is connected to the intercooler line and the fan pulley 32 of the cooling fan 30 is connected to the pulley rotated by the engine 60 via the belt 33. [

Therefore, when the fan 31, which receives the power from the engine 60 via the belt 33, is rotated, the air is sucked in the axial direction of the cooling fan 30 and also sucked in the radial direction of the cooling fan 30 Come in.

The air pressure in the cylindrical space of the intercooler 20 forming the rear space of the fan 31 is lowered by the fan 31 being rotated as described above and the air pressure in the rear space of the intercooler 20 The air is sucked into the intercooler 20.

3 shows blowing characteristics of the shroudless type cooling module according to the present embodiment.

As shown in the figure, the air is simultaneously sucked in the axial direction and the radial direction of the cooling fan 30 and then exits through the fan 31, so that the internal space of the intercooler 20 becomes a relatively low pressure state, Because of this pressure drop, air is sucked into the intercooler 20.

Particularly, the air sucked into the intercooler 20 passes through the radiator 10 directly in the rear space of the radiator 10, so that the radiator 10 is directly placed in the air flow path.

In this process, the internal space pressure of the intercooler 20 forms a relatively lower pressure (Pa) in the radial direction of the intercooler 20, so that the airflow exiting to the fan 31 is relatively faster The air flow rate passing through the radiator 10 and the intercooler 20 also has a uniform distribution over the entire area.

Therefore, the radiator 10 can be influenced by the airflow up to the left and right upper corner portions A and B of the upper end portion as well as the dead zone of the lower end portion. As a result, 10), the formation of the dead zone (C) is minimized, so that the overall cooling performance is greatly improved.

5 to 8 illustrate a performance diagram according to a layout change of the shroudless type cooling module according to the present invention.

The radiator 10, the intercooler 20, and the radiator 10 are separated from each other as shown in FIG. 5, when the cooling fan 30 changes to the spacing distance Sb further spaced from the spacing Sa formed with the radiator 10, The cooling performance of the cooling module is also changed by changing the amount of air passing through the cooling fan 30.

When the cooling fan 30 is changed to a shorter insertion amount Xa based on the insertion amount Xa inserted into the intercooler 20 as shown in FIG. 7, the radiator 10 and the intercooler 20 And the cooling air passing through the cooling fan 30 are changed, the cooling performance of the cooling module is also changed.

Therefore, in the present embodiment, by applying the distance of the cooling fan 30 to the radiator 10 during designing and the amount of insertion of the cooling fan 30 into the intercooler 20 as main design parameters, cooling of the cooling module Optimization of performance is greatly improved, and the layout utilization can be greatly increased by reducing the size of the single product.

As described above, the cooling apparatus according to the present embodiment is installed in the shroud position space K from which a shroud is removed from one side of the engine room E, and the engine room E and the vehicle interior space And a cooling module that is coupled with the engine room partition panel 50 to form a fixing force and converts the high temperature engine cooling water discharged from the engine 60 into the low temperature engine cooling water through the air flow of the engine room, Since the air sucked into the cooling fan 30 flows directly into the radiator 10 without passing through the intercooler 20, the dead zone is minimized and the cooling performance is improved. Particularly, The space availability of the room E can be improved.

10: Radiator 11: Cooling cell
12: Upper case 13, 15: Nipple
14: Lower case 20: Intercooler
21, 22: first and second cooler tanks 30: cooling fans
31: Fan 32: Fan Pulley
33: Belt 34: Mounting frame
35: Fixing bracket 50: Engine compartment panel
60: engine
E: engine room K: shroud position space

Claims (8)

The shroud is installed in a shroud position space where a shroud is removed from one side of the engine room and is fastened to an engine compartment panel for partitioning the engine room and the vehicle interior space to form a fixing force, And a cooling module for converting the high temperature engine cooling water from the low temperature engine cooling water into the low temperature engine cooling water,
Wherein the cooling module comprises: a cooling fan rotated by the engine to discharge air sucked in the radial direction together with the axial direction; An intercooler which sucks air by rotation of the cooling fan and forms a ventilation passage through which the sucked air escapes to the cooling fan; A radiator for exchanging air sucked by the air passage of the intercooler with the high temperature engine cooling water and sending the low temperature engine cooling water converted to the heat exchange function back to the engine; Consisting of
Wherein the shroudless type cooling device comprises:
delete The fan according to claim 1, wherein the cooling fan comprises a fan having a blade, a fan pulley connected to the fan, a belt connecting the fan pulley to be rotated by the engine, and a mounting frame coupled with the intercooler Shroudless type cooling device.
The shroudless type cooling apparatus according to claim 1, wherein the intercooler is composed of a cylinder body having first and second cooler tanks respectively forward and rearward, and the cylinder body is in the form of a hollow cylinder.
[6] The shroudless type air conditioner according to claim 4, wherein the hollow cylinder shape forms a blowing passage of air sucked by the cooling fan, and a fan constituting the cooling fan is inserted into an inner space of the blowing passage Cooling device.
The cooling system according to claim 1, wherein the radiator comprises: a cooling cell in which heat is exchanged between blowing air passing through the radiator and the high-temperature engine cooling water; an upper tank coupled to an upper portion of the cooling cell to allow the high- And a lower tank coupled to a lower portion of the cooling cell to return the low temperature engine cooling water discharged from the cell back to the engine.
The shroudless type cooling apparatus according to claim 6, wherein the intercooler is positioned between the upper tank and the lower tank, and the upper tank and the lower tank are in close contact with each other while surrounding the outer circumferential surface of the intercooler.
The shroudless type cooling apparatus according to claim 7, wherein the intercooler in which the upper tank and the lower tank are wrapped and attached closely is formed in a circular shape.

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