KR20120010871A - a cooling aid apparatus for engine room in construction machine - Google Patents

a cooling aid apparatus for engine room in construction machine Download PDF

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Publication number
KR20120010871A
KR20120010871A KR1020100072505A KR20100072505A KR20120010871A KR 20120010871 A KR20120010871 A KR 20120010871A KR 1020100072505 A KR1020100072505 A KR 1020100072505A KR 20100072505 A KR20100072505 A KR 20100072505A KR 20120010871 A KR20120010871 A KR 20120010871A
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KR
South Korea
Prior art keywords
cooling
engine
radiator
outside air
oil cooler
Prior art date
Application number
KR1020100072505A
Other languages
Korean (ko)
Inventor
하정근
Original Assignee
볼보 컨스트럭션 이큅먼트 에이비
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 볼보 컨스트럭션 이큅먼트 에이비 filed Critical 볼보 컨스트럭션 이큅먼트 에이비
Priority to KR1020100072505A priority Critical patent/KR20120010871A/en
Publication of KR20120010871A publication Critical patent/KR20120010871A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment

Abstract

The disclosed invention relates to a cooling aid for construction machinery that is improved to cool each radiator and oil cooler through heat exchange of outside air (A) and spray depending on whether the engine coolant is overheated.
In the cooling auxiliary device for construction machinery installed in the engine room having a cooling fan that rotates by the engine to supply the outside air (A),
A radiator and an oil cooler installed adjacent to the cooling fan and cooled by receiving outside air A according to the rotation of the cooling fan;
A water storage tank installed at one side of the engine room and storing water for spraying therein;
A spraying device having a blower nozzle, the spraying device being fixed to one side in front of the radiator so that water supplied from the water storage tank is sprayed along the outside air (A) through a blower nozzle;
And an electronic controller (V-ECU) connected to one side of the engine and the spraying apparatus, and driving the spraying apparatus by operating a relay when the coolant of the engine is overheated.

Description

Cooling aids for construction machinery {a cooling aid apparatus for engine room in construction machine}

The present invention relates to a cooling aid for construction machinery, and more particularly, for a construction machinery improved to cool each radiator and oil cooler through heat exchange of outside air (A) and spray depending on whether the engine coolant is overheated. It relates to a cooling auxiliary device.

FIG. 1 schematically illustrates a conventional cooling system for a construction machine. When the cooling fan 2 is rotated by the power of the engine 1 installed in the engine room 5, the outside air A is radiated by a radiator 3. ) Is supplied to the cold air circulation.

However, the cooling performance of the conventional construction equipment cooling system is greatly affected by the specifications of the cooling fan and the rotational speed of the cooling fan for forcibly supplying the outside air (A), and the radiator (3) requiring cooling inside the engine room. B. There are many difficulties in improving the noise and cooling performance caused by the arrangement of the oil cooler (not shown) or the flow of the outside air (A).

That is, in order to improve the cooling performance, increasing the capacity of the efficiency radiator and the oil cooler has to change the layout of the inside of the engine room as a whole, thereby increasing the uneconomical cost and increasing the capacity of the cooling fan. In this case, the noise is also relatively increased.

Therefore, the present invention was created to solve the above-mentioned problems, cooling for construction machinery that can improve the cooling efficiency without changing the capacity of the cooling module of the radiator or oil cooler or the specification of the cooling fan depending on whether the engine coolant is overheated. The purpose is to provide an auxiliary device.

Another object of the present invention, for the construction machinery that can improve the cooling efficiency of the radiator and oil cooler that requires cooling by mixing the air (A) generated by the rotation of the cooling fan and the spray of water generated by the spray device It is to provide a cooling auxiliary device.

Another object of the present invention is to maintain the cooling efficiency of the radiator and oil cooler by having a circulating flow in which the spray passed through the radiator and the oil cooler by the spray device is recovered to the water storage tank and supplied again to the spray device. To provide a cooling aid for construction machinery.

The present invention to achieve the above object,

In the cooling auxiliary device for construction machinery installed in the engine room having a cooling fan that rotates by the engine to supply the outside air (A),

A radiator and an oil cooler installed adjacent to the cooling fan and cooled by receiving outside air A according to the rotation of the cooling fan;

A water storage tank installed at one side of the engine room and storing water for spraying therein;

A spraying device having a blower nozzle, the spraying device being fixed to one side in front of the radiator so that water supplied from the water storage tank is sprayed along the outside air (A) through a blower nozzle;

And an electronic controller connected to each side of the engine and the spraying apparatus, the electronic controller driving the spraying apparatus by operating a relay when the coolant of the engine is overheated.

In another aspect of the present invention, a construction machine in which the spray device is installed in the upper part of the engine room so that the sprayer is sprayed on the radiator and the oil cooler, respectively, and the heat exchange is performed on the spray and the outer surfaces of the respective radiators and the oil cooler. Cooling aids.

Another feature of the present invention, the suction device is provided with a suction chamber which is sprayed along the outside air (A) and the outside air (A) is sucked through the radiator and the oil cooler, and fixed to one side of the oil cooler rear (sucktion unit) is further included in the cooling equipment for construction machinery.

Another feature of the present invention, the electronic controller is connected to the suction device is installed on one side, the cooling auxiliary device for construction machinery to operate the relay when the coolant of the engine is overheated to operate the suction device.

Another feature of the present invention is a cooling apparatus for a construction machine, the spraying device is composed of a spray unit (spray unit) for pressing and extruding the water supplied from the water storage tank.

In the cooling apparatus for construction machinery according to the present invention, the spray formed by the outside air (A) and the spray device according to whether or not the engine coolant is overheated by direct heat exchange with the radiator and or the oil cooler to cool the cooling module, There is an advantage that can improve the cooling efficiency without changing the capacity or specification of the cooling fan.

In addition, the cooling aids for construction machinery according to the present invention, the water is sprayed from the water storage tank by the spraying device and the suction device and the spray passing through the radiator and the oil cooler is collected and recovered to the water storage tank to re-spray the spray There is a secondary advantage of maintaining a series of spray circulation streams in which the feed occurs continuously.

1 is a block diagram schematically showing a conventional cooling system for construction machinery,
2 is a configuration of a cooling system installed cooling aids for construction machinery according to an embodiment of the present invention,
3 is a configuration diagram of a cooling system in which a cooling aid for construction machinery according to another embodiment of the present invention is installed;

The terms or words used in this specification and claims are not to be construed as being limited to their ordinary or dictionary meanings, and the inventors may legally define the concept of terms in order to best describe their invention. On the basis of the principle that the present invention should be interpreted as meanings and concepts corresponding to the technical idea of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2, the cooling aids for construction machinery according to the present invention,

In the cooling auxiliary apparatus for construction machinery installed in the engine room 5 provided with the cooling fan 2 which rotates by the engine 1 and supplies external air A,

The radiator 3 and the oil cooler 4, which are installed adjacent to the cooling fan 2 and are supplied with the outside air A according to the rotation of the cooling fan 2, are cooled.

In addition, the cooling auxiliary device for a construction machine according to the present invention, is installed on one side of the engine room (5), the water storage tank (6) for storing the spray water therein;

And a blower nozzle (7), and fixedly installed at one side of the front side of the radiator (3) such that water supplied from the water storage tank (6) is sprayed along the outside air (A) through the blower nozzle (7) A spray device 8; And

An electronic controller 10 connected to one side of the engine 1 and the atomizer 8, respectively, to operate the relay 9 when the coolant of the engine 1 overheats to drive the atomizer 8. It is configured to include.

Preferably, a coolant temperature sensor 16 is installed in the engine 1 connected to the electronic controller 10 to detect the coolant temperature. When the coolant temperature of the engine 1 is detected to be 80 degrees or higher, Receiving a control signal from the electronic controller 10, the relay 9 is connected to each of the radiator (3) and the oil cooler (4) by the heat of latent heat and evaporation of water sprayed from the spraying device (8) Cooling is achieved through heat exchange.

In one embodiment of the present invention, the spray device 8 is preferably composed of a spray unit (spray unit) for pressurizing and extruding the water supplied from the water storage tank (6), the water storage tank ( One side of 6) is configured with a supply pipe 14 for supplying water to the spraying device (8).

In addition, the spray device 8 may be arranged in the upper part of the engine room 5 so that the sprayer 8 is sprayed on the radiator 3 and the oil cooler 4, respectively, which is a flow of spray and the respective radiator ( 3) and to increase the heat exchange efficiency to the outer surface of the oil cooler (4).

Of course, the spraying device 8 may be configured integrally with the pressurized tank for high-pressure spraying water on the blower nozzle (7).

On the other hand, in another embodiment of the present invention, the construction apparatus cooling auxiliary apparatus, the spray and the outside air (A) flowing along the outside air (A) via the radiator (3) and the oil cooler (4) Is provided with a suction chamber 11 is sucked, it is configured to further include a suction device 12 is fixed to the rear side of the oil cooler.

The suction device 12 has an inlet 15 for suctioning the spray flowing along the outside air A from the rear or bottom of the oil cooler 4, and at one side of the water storage tank 6, the suction The supply pipe 14 is configured to store the water collected in the chamber 11 by flowing back.

The electronic controller 10 is connected to one side of the suction device 12, and the suction device 12 is driven by operating the relay 9 when the coolant of the engine 1 is overheated.

Preferably, when the coolant temperature of the engine 1 is detected at 80 degrees or more by the coolant temperature sensor 16 configured in the engine 1, the relay receives a control signal from the electronic controller 10. 9) is connected, and accordingly the suction device 12 is driven to collect water in the suction chamber 11.

In the above-described embodiment of the present invention, the electronic controller 10 is composed of the engine electronic controller (E-ECU) or the equipment electronic controller (V-ECU) for construction machinery and sprayed with the coolant temperature sensor 16 It may be connected to the device 8 or the suction device 12, and even if it further comprises a control means for modifying the temperature detection range of the coolant in accordance with the cooling water temperature setting requirements required in the climate or construction site, it is within the scope of the present invention. Should be interpreted as

Hereinafter, with reference to the embodiment will be described the operating principle of the cooling machine for construction equipment according to the present invention.

In the cooling apparatus for construction machinery according to the present invention, as the cooling fan 2 connected to the engine 1 rotates, the outside air A circulates to the radiator 3 and the oil cooler 4 and the cooling water temperature is sensed. The spraying device 8 is driven in accordance with the temperature of the coolant detected by the sensor 16 and water is sprayed from the blower nozzle 7 to flow in the sprayed state, and heat exchange with the radiator 3 and the oil cooler 4 is performed. Cause

For example, when the coolant temperature detection sensor 16 detects the coolant temperature of the engine 1 to 80 degrees or more, the relay 9 is connected by receiving a control signal from the electronic controller 10. Therefore, water is sprayed from the blower nozzle 7 of the spraying device 8.

Spray from the blower nozzle (7) may be injected toward the outer surface of the radiator 3 and / or oil cooler (4) in the upper engine room (5), the rotation of the cooling fan (2) Flow with the outside air (A) generated by the passing through the radiator 3 and the oil cooler (4).

At this time, heat exchange is performed between the spray and the radiator 3 and / or the oil cooler 4 according to the conditions of sensible heat of water (1 kcal / kg ° C.) and latent heat of evaporation (540 kcal / kg).

The heat exchange efficiency may vary depending on the amount of spray injected into the blower nozzle 7, and when the spray unit is sprayed, the spray flow is formed to uniformly contact the outer surfaces of the radiator 3 and the oil cooler 4. Appeared.

Ultimately, the radiator 3 and / or the oil cooler 4 configured according to the present invention perform a cooling by heat exchange between the outside air A and the spray, and thus the cooling efficiency per unit time of the cooling module is shown to increase significantly. This makes it possible to easily apply the cooling module without changing the specification of the equipment or the capacity increase and layout required in the prior art.

On the other hand, in the embodiment in which the suction device 12 is configured, the spray flowing along the outside air A is introduced into the suction device 12 of the suction device 12 via the radiator 3 and / or the oil cooler 4. 15 may be sucked into the suction chamber 11.

Water collected in the suction chamber 11 may be stored in the water storage tank 6 through the recovery pipe 13 and recycled to the water for the spraying device 8.

The driving of the suction device 12 is controlled by the electronic controller 10 to which the above-described signal of the coolant temperature of the engine 1 is applied, for example, the coolant temperature sensor 16 in the coolant temperature sensor 16. When the coolant temperature of the fan is detected to be 80 degrees or more, the relay 9 is connected by receiving a control signal from the electronic controller 10, and accordingly water from the blower nozzle 7 of the spraying device 8 is connected. This is injected, and the intake and collection is made through the suction port 15 and the suction chamber 11 of the suction device 12.

The water collected in the suction device 12 may be discharged to the outside, and spraying is carried out together with the outside air A generated by the rotation of the cooling fan 2 to the radiator 3 and / or the oil cooler ( The operating principle that the cooling efficiency is increased by causing heat exchange via 4) is the same as described above, and thus detailed description thereof will be omitted.

1: engine
2: cooling fan
3: radiator
4: oil cooler
6: water storage tank
7: blower nozzle
8: spraying device
9: relay
10: electronic controller
12: suction device

Claims (5)

In the cooling auxiliary device for construction machinery installed in the engine room having a cooling fan that rotates by the engine to supply the outside air (A),
A radiator and an oil cooler installed adjacent to the cooling fan and cooled by receiving outside air A according to the rotation of the cooling fan;
A water storage tank installed at one side of the engine room and storing water for spraying therein;
A spraying device having a blower nozzle, the spraying device being fixed to one side in front of the radiator so that water supplied from the water storage tank is sprayed along the outside air (A) through a blower nozzle;
And an electronic controller connected to each side of the engine and the spraying apparatus, the electronic controller driving the spraying apparatus by operating a relay when the coolant of the engine is overheated. 2.
The method according to claim 1,
Cooling assistance for construction machinery, characterized in that the spraying device is arranged in the upper part of the engine room so that the sprayer is sprayed on the radiator and the oil cooler, respectively, and the heat exchange is performed on the spray and the external surfaces of the radiators and the oil cooler. Device.
The method according to claim 1,
And a suction chamber through which the radiator and the oil cooler flow along the outside air (A) and the suction chamber into which the outside air (A) is sucked, and further comprising a suction device fixed to the rear side of the oil cooler. Cooling auxiliary device for construction machinery.
The method according to claim 3,
The electronic controller is connected to one side of the suction device, and the suction device is driven by operating the relay when the coolant of the engine is overheated.
The method according to claim 2 or 3,
Cooling auxiliary device for a construction machine, characterized in that the spray device comprises a spray unit for pressurizing and extruding the water supplied from the water storage tank.
KR1020100072505A 2010-07-27 2010-07-27 a cooling aid apparatus for engine room in construction machine KR20120010871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100072505A KR20120010871A (en) 2010-07-27 2010-07-27 a cooling aid apparatus for engine room in construction machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100072505A KR20120010871A (en) 2010-07-27 2010-07-27 a cooling aid apparatus for engine room in construction machine

Publications (1)

Publication Number Publication Date
KR20120010871A true KR20120010871A (en) 2012-02-06

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Application Number Title Priority Date Filing Date
KR1020100072505A KR20120010871A (en) 2010-07-27 2010-07-27 a cooling aid apparatus for engine room in construction machine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103303127A (en) * 2013-07-05 2013-09-18 山推工程机械股份有限公司 Combined heat-radiating system and engineering machinery
JP2018065436A (en) * 2016-10-18 2018-04-26 株式会社デンソー Cooling device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103303127A (en) * 2013-07-05 2013-09-18 山推工程机械股份有限公司 Combined heat-radiating system and engineering machinery
CN103303127B (en) * 2013-07-05 2015-11-18 山推工程机械股份有限公司 A kind of combined type heat radiating system and construction machinery and equipment
JP2018065436A (en) * 2016-10-18 2018-04-26 株式会社デンソー Cooling device

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