KR20030050207A - Cooling System Of Heavy Equipment Applied A Independent Oil Cooler - Google Patents

Cooling System Of Heavy Equipment Applied A Independent Oil Cooler Download PDF

Info

Publication number
KR20030050207A
KR20030050207A KR1020010080607A KR20010080607A KR20030050207A KR 20030050207 A KR20030050207 A KR 20030050207A KR 1020010080607 A KR1020010080607 A KR 1020010080607A KR 20010080607 A KR20010080607 A KR 20010080607A KR 20030050207 A KR20030050207 A KR 20030050207A
Authority
KR
South Korea
Prior art keywords
oil
cooling system
fan
engine
oil cooler
Prior art date
Application number
KR1020010080607A
Other languages
Korean (ko)
Inventor
나찬주
Original Assignee
볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 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 이키프먼트 홀딩 스웨덴 에이비 filed Critical 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비
Priority to KR1020010080607A priority Critical patent/KR20030050207A/en
Publication of KR20030050207A publication Critical patent/KR20030050207A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/10—Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2070/00—Details
    • F01P2070/10—Details using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2070/00—Details
    • F01P2070/50—Details mounting fans to heat-exchangers

Abstract

PURPOSE: A cooling system having an independent oil cooler for heavy equipments is provided to use the space efficiently by mounting a charge air cooler in the engine with separating the oil cooler from the engine, to decrease noise by reducing the cooling air amount with distributing cooling air, and to increase thermal efficiency by distributing thermal load. CONSTITUTION: A heavy equipment cooling system comprises a first cooling system(1) having an oil cooler(6) separated from an engine, an oil fan(6a) cooling the oil cooler by blowing, a fan motor(6b) rotating the oil fan and an outer case(8) opening sides to prevent air from the cooling fan from being contacted to blow from the oil fan and discharging hot air, and a second cooling system(2) having a charge air cooler(7) combined with a radiator(5) for supplying cool air to the intake manifold of the engine. The first cooling system cools the oil cooler, and the second cooling system cools the radiator, the charge air cooler and the engine.

Description

독립 오일쿨러식 중장비 냉각시스템{Cooling System Of Heavy Equipment Applied A Independent Oil Cooler}Cooling System Of Heavy Equipment Applied A Independent Oil Cooler

본 발명은 독립된 오일쿨러식 중장비 냉각시스템에 관한 것으로서, 더욱 상세하게는 중장비 엔진의 오일쿨러가 종래의 중장비 엔진냉각시스템에서 분리되어 별개의 냉각시스템으로 구성됨으로서 냉각효율이 극대화된 독립 오일쿨러식 중장비 냉각시스템에 관한 것이다.The present invention relates to an independent oil cooler-type heavy equipment cooling system, and more particularly, an oil cooler of a heavy-duty engine is separated from a conventional heavy-duty engine cooling system and constitutes a separate cooling system, thereby maximizing cooling efficiency. It relates to a cooling system.

중장비 배기가스의 규제강화에 따라, 엔진의 실린더에 내에 밀도가 높은 공기를 공급하여 연료의 완전연소를 시키는 차즈에어쿨러(Charge Air Cooler; CAC)를 선택이 아닌 필수적으로 사용하여야 한다.As the regulation of heavy equipment exhaust gas tightens, it is necessary to use Charge Air Cooler (CAC), which does not select, to supply the high density air in the cylinder of the engine to completely burn the fuel.

그러나, 종래의 중장비 엔진냉각시스템은 엔진의 팬밸트에 의해 구동되는 냉각팬에 의해 발생된 공기가 라디에이터와 오일쿨러를 냉각시킨 후 엔진룸을 통하여 사이드도어나 엔진후드를 통하여 대기로 방출되는 시스템으로 되어 있어, 상술한 차즈에어쿨러를 적용할 경우 종래의 냉각요구용량에 비하여 30%나 증가하게 되었고, 추가의 차즈에어쿨러의 설치공간이 필요하게 되었으며, 냉각 열부하증가에 대응해 냉각성능을 맞추기 위하여 냉각팬의 공기유량을 증대시키면서 라디에이터와 오일쿨러를 키워야 하므로 공간적인 제약조건와 원가상승 및 공기유량 증대에 따른 소음증대의 문제점이 있었다.However, the conventional heavy-duty engine cooling system is a system in which air generated by a cooling fan driven by a fan belt of an engine cools a radiator and an oil cooler and is released into the atmosphere through a side door or an engine hood through an engine room. In the case of applying the above-mentioned chas air cooler, it is increased by 30% compared to the conventional cooling demand capacity, and an additional chas air cooler installation space is required, and in order to meet the cooling performance in response to the increase in the cooling heat load. Since the radiator and the oil cooler should be increased while increasing the air flow rate of the cooling fan, there was a problem of noise increase due to spatial constraints, cost increase, and air flow rate increase.

본 발명은 상기 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은, 엔진에서 오일쿨러가 여유공간으로 분리되어 냉각되고 엔진에 차즈에어쿨러를 장착하여 공간 활용성이 좋고, 열부하를 분배시켜 열효율이 높으며, 하나의 대용량 냉각팬에서 발생되는 공기유동 소음을 분산시켜 중장비전체의 지배적인 냉각소음 저감효과가 있는 독립 오일쿨러식 중장비 냉각시스템을 제공하는 것이다.The present invention has been made to solve the above problems, an object of the present invention, the oil cooler in the engine is separated into a free space and cooled, and the engine is equipped with a chas air cooler, the space utilization is good, the heat load is distributed by thermal efficiency This is to provide an independent oil cooler-type heavy-duty cooling system with high noise and dominant cooling noise reduction effect of the whole heavy equipment by dispersing airflow noise generated in one large-capacity cooling fan.

본 발명의 다른 목적은, 오일쿨러를 통과한 뜨거운 공기가 운전석에 유입되지 않아 운전자에게 불쾌감이 없고, 에어콘용량 감소의 부작용이 없는 독립 오일쿨러식 중장비 냉각시스템을 제공하는 것이다.Another object of the present invention is to provide an independent oil cooler-type heavy equipment cooling system in which hot air that has passed through the oil cooler does not flow into the driver's seat so that there is no discomfort to the driver, and there is no side effect of reducing the air conditioner capacity.

도 1은 종래 중장비 냉각시스템의 평면도.1 is a plan view of a conventional heavy-duty cooling system.

도 2는 본 발명의 일 실시예에 따른 독립 오일쿨러식 중장비 냉각시스템의 평면도.Figure 2 is a plan view of an independent oil cooler heavy equipment cooling system according to an embodiment of the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1: 제 1냉각시스템 2: 제 2냉각시스템1: first cooling system 2: second cooling system

3: 엔진 6: 오일쿨러3: engine 6: oil cooler

6a: 오일팬 6b: 팬모터6a: oil pan 6b: fan motor

상기와 같은 목적을 달성하기 위한 본 발명의 독립 오일쿨러식 중장비 냉각시스템은, 엔진의 팬벨트에 의해 구동되는 냉각팬의 송풍으로 라디에이터, 오일쿨러 및 엔진을 냉각시키는 중장비 냉각시스템에 있어서, 상기 오일쿨러는 엔진에서 분리되어 배치되고, 상기 오일쿨러를 송풍으로 냉각시키는 오일팬과, 상기 오일팬을 회전시키는 팬모터와, 상기 오일팬과 팬모터 및 분리된 상기 오일쿨러를 수납하고 상기 냉각팬의 송풍과 상기 오일팬의 송풍이 만나지 않게 측면이 적어도 두 개 이상 개방되어 내부의 열기(熱氣)가 중장비의 외부로 배출되는 외부케이스로 이루어져 오일쿨러를 냉각시키는 제 1냉각시스템과; 상기 라디에이터의 외측에 결합되어 냉각되고, 그 내부의 냉각된 공기를 엔진의 흡기다기관으로 보내는 차즈에어쿨러로 이루어져 라디에이터, 차즈에어쿨러 및 엔진을 냉각시키는 제 2냉각시스템;으로 이루어진다.The independent oil cooler heavy equipment cooling system of the present invention for achieving the above object, in the heavy equipment cooling system for cooling the radiator, the oil cooler and the engine by the cooling fan driven by the fan belt of the engine, The cooler is disposed separately from the engine and accommodates an oil fan for cooling the oil cooler by blowing air, a fan motor for rotating the oil fan, the oil fan and the fan motor, and the oil cooler separated from each other. A first cooling system configured to cool the oil cooler by forming an outer case in which at least two side surfaces are opened so that blowing and air blowing of the oil pan do not meet each other, and heat is discharged to the outside of the heavy equipment; And a second cooling system coupled to the outside of the radiator to cool the radiator, and configured to cool the radiator, the chads air cooler, and the engine by passing the cooled air therein to the intake manifold of the engine.

본 발명의 바람직한 특징에 따른 독립 오일쿨러식 중장비 냉각시스템은, 상기 오일쿨러 내부 오일의 온도에 따라 상기 오일팬의 회전속도를 제어하는 오일팬제어부를 더 포함하여 이루어진다.Independent oil cooler-type heavy equipment cooling system according to a preferred feature of the present invention, further comprises an oil pan control unit for controlling the rotational speed of the oil fan according to the temperature of the oil inside the oil cooler.

이하, 본 발명에 따른 독립 오일쿨러식 중장비 냉각시스템의 바람직한 실시예를 통하여 작용 및 효과를 첨부도면에 의거하여 상세히 설명한다.Hereinafter, the operation and effect through the preferred embodiment of the independent oil cooler heavy equipment cooling system according to the present invention will be described in detail based on the accompanying drawings.

도 2는 본 발명의 일 실시예에 따른 독립 오일쿨러식 중장비 냉각시스템의 평면도이며 도시된 실선은 공기의 흐름을 나타낸 것이다.Figure 2 is a plan view of an independent oil cooler heavy equipment cooling system according to an embodiment of the present invention and the solid line shown shows the flow of air.

도시된 바와 같이, 독립 오일쿨러식 중장비 냉각시스템은 다음과 같이 두 개의 시스템으로 구성된다.As shown, the independent oil cooler heavy equipment cooling system consists of two systems as follows.

제 1시스템(1)은, 엔진(3)의 팬벨트에 의해 구동되는 냉각팬(4)의 송풍으로 라디에이터(5), 오일쿨러(6) 및 엔진(3)을 냉각시키는 중장비 냉각시스템에 있어서, 상기 오일쿨러(6)는 엔진에서 분리되어 엔진의 길이방향에 대하여 가로 방향으로 배치되고, 상기 오일쿨러(6)의 외측에 결합되고 날개가 형성되어 상기 오일쿨러(6)를 송풍으로 냉각시키는 오일팬(6a)과, 상기 오일팬(6a)을 밸트로 회전시키는 팬모터(6b)와, 상기 오일팬(6a)과 팬모터(6b) 및 분리된 상기 오일쿨러(5)를 수납하고 상기 냉각팬(4)의 송풍과 상기 오일팬(6a)의 송풍이 만나지 않게 엔진의 길이방향과 평행한 일 측면과 엔진(3)의 길이방향과 수직하면서 중장비의 뒷쪽 일 측면이 개방되어 내부의 열기(熱氣)가 중장비의 외부로 배출되는 외부케이스(8)로 이루어져 오일쿨러(6)를 냉각시킨다.The first system (1) is a heavy equipment cooling system that cools the radiator (5), the oil cooler (6) and the engine (3) by blowing air from the cooling fan (4) driven by the fan belt of the engine (3). The oil cooler 6 is separated from the engine and disposed in the transverse direction with respect to the longitudinal direction of the engine. The oil cooler 6 is coupled to the outside of the oil cooler 6 to form a wing to cool the oil cooler 6 by blowing air. An oil pan 6a, a fan motor 6b for rotating the oil pan 6a with a belt, the oil pan 6a, a fan motor 6b and the separated oil cooler 5 are stored therein. In order to prevent the blowing of the cooling fan 4 and the blowing of the oil fan 6a from each other, the one side parallel to the longitudinal direction of the engine and the one side of the rear side of the heavy equipment is opened while being perpendicular to the longitudinal direction of the engine 3 to open. (Iii) consists of an outer case (8) discharged to the outside of the heavy equipment to cool the oil cooler (6).

이와 같은 구성으로, 상기 팬모터(6b)의 회전구동으로 오일팬(6a)에서 발생한 공기는 오일쿨러(6)를 냉각시키고, 제 2냉각시스템(2)을 거치지 않고 중장비의 외부로 배출된다.In such a configuration, the air generated in the oil pan 6a by the rotational drive of the fan motor 6b cools the oil cooler 6 and is discharged to the outside of the heavy equipment without passing through the second cooling system 2.

제 2 냉각시스템(2)은, 중장비 엔진(3)의 팬밸트로 구동되는 냉각팬(4)과 라디에이터(5) 및 상기 라디에이터(5)의 외측에 결합되어 냉각되고, 그 내부의 냉각된 공기를 엔진의 흡기다기관으로 보내는 차즈에어쿨러(7)로 이루어져 라디에이터(5), 차즈에어쿨러(7) 및 엔진(3)을 냉각시킨다.The second cooling system 2 is coupled to and cooled outside of the cooling fan 4 and the radiator 5 and the radiator 5 driven by the fan belt of the heavy equipment engine 3, and the cooled air therein. To the intake manifold of the engine to cool the radiator (5), the chads air cooler (7) and the engine (3).

이와 같은 구성으로, 상기 냉각팬(4)의 회전구동으로 발생한 공기는 라디에이터(5), 차즈에어쿨러(7) 및 엔진(3)을 냉각시키고, 제 1냉각시스템(1)을 거치지 않고 중장비의 외부로 배출된다.In this configuration, the air generated by the rotational driving of the cooling fan 4 cools the radiator 5, the chasing air cooler 7 and the engine 3, and passes through the first cooling system 1 of the heavy equipment. It is discharged to the outside.

또한, 본 발명의 바람직한 실시예에 따르는 독립 오일쿨러식 중장비 냉각시스템은, 상기 오일쿨러(6) 내부 오일의 온도에 따라 상기 오일팬(6a)의 회전속도를 제어하는 오일팬제어부를 더 포함한다.In addition, the independent oil cooler-type heavy equipment cooling system according to a preferred embodiment of the present invention further comprises an oil pan control unit for controlling the rotational speed of the oil pan (6a) according to the temperature of the oil inside the oil cooler (6). .

따라서, 오일의 온도가 높을 때 오일팬(6a)의 회전을 빠르게 하여 오일쿨러(6)를 빠르게 식히고 오일의 온도가 낮을 때는 오일팬(6a)의 회전을 느리게 하여 오일쿨러(6)를 느리게 식혀, 중장비의 운전조건에 따라 제 1냉각시스템(1)의 열효율을 높인다.Therefore, when the oil temperature is high, the oil fan 6a is rapidly rotated to cool the oil cooler 6 quickly, and when the oil temperature is low, the oil fan 6a is slowly rotated to cool the oil cooler 6 slowly. Therefore, the thermal efficiency of the first cooling system 1 is increased according to the operating conditions of the heavy equipment.

상기한 바와 같이 이루어진 본 발명에 따른 독립 오일쿨러식 중장비 냉각시스템은, 배기가스 규제 강화에 따라 중장비의 엔진은 차즈에어쿨러의 장착이 필수적이나 오일쿨러를 여유공간에 분리하여 다른 냉각시스템을 구성함으로서 냉각팬의 크기와 풍량을 증대시키지 않고 설치공간을 효율적으로 이용하고, 냉각공기의 분산을 통해 각각의 냉각공기량을 줄일 수 있어 공기유동소음을 감소시킬 수 있으며, 라디에이터, 차즈에어쿨러 및 오일쿨러의 3열 냉각시스템을 라디에이터와 차즈에어쿨러의 2열 냉각시스템과 오일쿨러의 1열 냉각시스템으로 분산되므로 공기의 절대 압력강하를 줄여 냉각공기의 열전달 효율을 극대화 할 수 있는 장점이 있다.Independent oil cooler-type heavy equipment cooling system according to the present invention made as described above, according to the tightening exhaust gas regulations, the engine of heavy equipment is required to install the air conditioner, but by separating the oil cooler in the free space by configuring another cooling system Efficient use of the installation space without increasing the size and volume of the cooling fan, and the amount of cooling air can be reduced by dispersing the cooling air, thereby reducing the airflow noise, and reducing the radiator, chasing air cooler and oil cooler. The three-row cooling system is divided into two-row cooling system of radiator and chas air cooler and one-row cooling system of oil cooler, so the absolute pressure drop of air can be reduced to maximize the heat transfer efficiency of cooling air.

아울러, 제 1, 2냉각시스템에서 냉각 후 뜨거워진 공기는 운전석으로 유입되지 않으므로 운전자에게 불쾌감을 주지 않으며, 운전실 내의 에어콘의 용량감소와 같은 부작용이 없다.In addition, since the air heated after cooling in the first and second cooling systems does not flow into the driver's seat, it does not cause discomfort to the driver, and there are no side effects such as a decrease in the capacity of the air conditioner in the cab.

Claims (2)

엔진의 팬벨트에 의해 구동되는 냉각팬의 송풍으로 라디에이터, 오일쿨러 및 엔진을 냉각시키는 중장비 냉각시스템에 있어서,In the heavy equipment cooling system that cools the radiator, the oil cooler and the engine by blowing the cooling fan driven by the fan belt of the engine, 상기 오일쿨러는 엔진에서 분리되어 배치되고, 상기 오일쿨러를 송풍으로 냉각시키는 오일팬과, 상기 오일팬을 회전시키는 팬모터와, 상기 오일팬과 팬모터 및 분리된 상기 오일쿨러를 수납하고 상기 냉각팬의 송풍과 상기 오일팬의 송풍이 만나지 않게 측면이 적어도 두 개 이상 개방되어 내부의 열기(熱氣)가 중장비의 외부로 배출되는 외부케이스로 이루어져 오일쿨러를 냉각시키는 제 1냉각시스템과;The oil cooler is disposed separately from the engine, and accommodates the oil fan for cooling the oil cooler by blowing air, the fan motor for rotating the oil fan, the oil fan and the fan motor and the separated oil cooler and the cooling A first cooling system configured to cool the oil cooler by forming an outer case in which at least two side surfaces are opened so that the blowing of the fan and the blowing of the oil fan do not meet, and the heat of the inside is discharged to the outside of the heavy equipment; 상기 라디에이터의 외측에 결합되어 냉각되고, 그 내부의 냉각된 공기를 엔진의 흡기다기관으로 보내는 차즈에어쿨러로 이루어져 라디에이터, 차즈에어쿨러 및 엔진을 냉각시키는 제 2냉각시스템;으로 각각 분리되는 것을 특징으로 하는 독립 오일쿨러식 중장비 냉각시스템.It is coupled to the outside of the radiator and cooled, consisting of a chaise air cooler that sends the cooled air inside the engine to the intake manifold of the radiator, the chaise air cooler and a second cooling system for cooling the engine; respectively separated Independent oil cooler heavy equipment cooling system. 제 1 항에 있어서,The method of claim 1, 상기 오일쿨러 내부 오일의 온도에 따라 상기 오일팬의 회전속도를 제어하는 오일팬제어부를 더 포함하여 이루어지는 것을 특징으로 하는 독립 오일쿨러식 중장비 냉각시스템.Independent oil cooler-type heavy equipment cooling system further comprises an oil pan control unit for controlling the rotational speed of the oil fan in accordance with the temperature of the oil in the oil cooler.
KR1020010080607A 2001-12-18 2001-12-18 Cooling System Of Heavy Equipment Applied A Independent Oil Cooler KR20030050207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020010080607A KR20030050207A (en) 2001-12-18 2001-12-18 Cooling System Of Heavy Equipment Applied A Independent Oil Cooler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020010080607A KR20030050207A (en) 2001-12-18 2001-12-18 Cooling System Of Heavy Equipment Applied A Independent Oil Cooler

Publications (1)

Publication Number Publication Date
KR20030050207A true KR20030050207A (en) 2003-06-25

Family

ID=37421683

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020010080607A KR20030050207A (en) 2001-12-18 2001-12-18 Cooling System Of Heavy Equipment Applied A Independent Oil Cooler

Country Status (1)

Country Link
KR (1) KR20030050207A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157806A (en) * 1981-03-25 1982-09-29 Hitachi Constr Mach Co Ltd Cooling system of working fluid
JPH10169440A (en) * 1996-12-10 1998-06-23 Komatsu Ltd Cooling system for construction equipment
KR19990016724U (en) * 1997-10-30 1999-05-25 토니헬샴 Parallel chiller for heavy equipment
US6076488A (en) * 1997-03-17 2000-06-20 Shin Caterpillar Mitsubishi Ltd. Cooling device for a construction machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157806A (en) * 1981-03-25 1982-09-29 Hitachi Constr Mach Co Ltd Cooling system of working fluid
JPH10169440A (en) * 1996-12-10 1998-06-23 Komatsu Ltd Cooling system for construction equipment
US6076488A (en) * 1997-03-17 2000-06-20 Shin Caterpillar Mitsubishi Ltd. Cooling device for a construction machine
KR19990016724U (en) * 1997-10-30 1999-05-25 토니헬샴 Parallel chiller for heavy equipment

Similar Documents

Publication Publication Date Title
JP2002192962A (en) Vehicle cooling system
US6745726B2 (en) Engine thermal management for internal combustion engine
US6708513B2 (en) CO2-module for cooling and heating
US7650753B2 (en) Arrangement for cooling exhaust gas and charge air
EP1937958B1 (en) Arrangement for recirculation of exhaust gases of a supercharged internal combustion engine
US20100294217A1 (en) Waste Heat Utilization Device for Internal Combustion Engine
US7484378B2 (en) Cooling system and method for cooling a heat producing system
JP2008208841A (en) System for controlling temperature of intake air
CN101239606A (en) Variable flow heat exchanger system and method
US20050081523A1 (en) Charged internal combustion engine
KR20110016997A (en) Arrangement for a supercharged combustion engine
US20190128171A1 (en) Cooling structure for vehicle
US6981545B2 (en) Disconnectable heat exchanger
CA3131326A1 (en) Intake and exhaust system and all-terrain vehicle
CN102128074A (en) Vehicle device and operation method thereof
CN1993242A (en) Method and arrangement for cooling
JP4367294B2 (en) Cooling device for water-cooled internal combustion engine for vehicle
JP2924148B2 (en) Water-cooled internal combustion engine cooling system
EP2212530B1 (en) Cooling arrangement for a utility vehicle
KR20030050207A (en) Cooling System Of Heavy Equipment Applied A Independent Oil Cooler
JP6036169B2 (en) Vehicle cooling system
US6837194B2 (en) Motor vehicle cooling system and motor vehicle embodying same
EP1426577B1 (en) A commercial vehicle
CN208247960U (en) The cooling system of engine nacelle
CN112177750A (en) Engineering vehicle cooling system with exhaust injection cooling device

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application