KR20030005697A - Changeable cooling fan device of radiator - Google Patents

Changeable cooling fan device of radiator Download PDF

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Publication number
KR20030005697A
KR20030005697A KR1020010041092A KR20010041092A KR20030005697A KR 20030005697 A KR20030005697 A KR 20030005697A KR 1020010041092 A KR1020010041092 A KR 1020010041092A KR 20010041092 A KR20010041092 A KR 20010041092A KR 20030005697 A KR20030005697 A KR 20030005697A
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KR
South Korea
Prior art keywords
fan
variable
fixed
radiator
cooling fan
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KR1020010041092A
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Korean (ko)
Inventor
이건행
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현대자동차주식회사
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Priority to KR1020010041092A priority Critical patent/KR20030005697A/en
Publication of KR20030005697A publication Critical patent/KR20030005697A/en

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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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/12—Filtering, cooling, or silencing cooling-air
    • 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
    • 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
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/026—Thermostatic control

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

PURPOSE: A variable cooling fan apparatus for a radiator is provided to reduce the noise and improve the fuel efficiency by minimizing the size of a cooling fan in stopping vehicle of low temperature of the coolant or in a low speed driving, and prevent overheat of an engine by extending the size of the cooling fan in a high speed driving with high load in the engine. CONSTITUTION: A variable cooling fan apparatus(1) for a radiator comprises a center hub(2) fixed to a rotation shaft of a fan motor, a plurality of fixed fans(3) projected at the circumference of the hub, a variable fan(4) mounted to be inserted into an end of the fixed fan, a thermal expansion material(7) expanding and contracting according to the temperature change of air passing through the radiator and sealed in the space(5) formed to the end of the fixed fan to support the variable fan, and a return spring(8) drawing the variable fan in the fixed fan against the expansion force of the thermal expansion material.

Description

라디에이터 통풍용 가변 냉각팬 장치{Changeable cooling fan device of radiator}Changeable cooling fan device for radiator ventilation

본 발명은 엔진 냉각수를 방열 냉각하는 라디에이터의 통풍을 돕는 가변 냉각팬 장치에 관한 것이다.The present invention relates to a variable cooling fan device to assist the ventilation of the radiator for radiating and cooling the engine coolant.

실린더내의 연소가의 온도는 200℃ 이상으로서 이 열의 전부가 동력으로 전환되는 것은 아니고 상당량의 열은 실린더, 실린더헤드 및 피스톤 등에 흡수되게되는데, 이들 부분의 온도가 과도하게 상승하면 실린더에 변형을 일으키거나 또는 실린더 벽의 유막의 파괴를 가져와 윤활 불량이 되며, 심할 때는 엔진을 손상시킬 수 있고 또 연소상태도 나빠지는 결과 노킹이나 조기점화를 일으켜 출력이 급격히 저하되게 된다. 반대로 엔진이 너무 냉각되면 연소에 의한 생긴 열 중에서 냉각으로 손실되는 양이 많아져 엔진의 열 효율을 저하시켜 연료 소비를 증대시키게 되며, 또 실린더내에서 가솔린의 무화가 불충분한 혼합기가 공급되기 때문에 가솔린에 의해 엔진 오일을 묽게 만들어 실린더의 마모를 촉진하는 원인이 된다.The temperature of the combustion value in the cylinder is 200 ° C or higher, and not all of this heat is converted into power, and a considerable amount of heat is absorbed by the cylinder, the cylinder head, and the piston. If the temperature of these parts rises excessively, the cylinder may be deformed. This can lead to failure of the oil film on the cylinder wall or lubrication, resulting in poor lubrication, severe damage to the engine, and poor combustion, resulting in knocking and premature ignition, resulting in a sharp drop in output. On the contrary, if the engine is cooled too much, the amount of heat lost due to combustion increases due to cooling, which lowers the thermal efficiency of the engine, thereby increasing fuel consumption, and also because gasoline is supplied with an insufficient mixture of gasoline in the cylinder. This can cause the engine oil to be diluted to promote the wear of the cylinder.

이때문에 엔진을 냉각하여 과열을 방지하고, 또 과냉을 방지하여 적절한 온도로 유지하기 위해 엔진 냉각 장치가 사용되고 있다.For this reason, an engine cooling device is used to cool the engine to prevent overheating and to prevent overcooling and to maintain the proper temperature.

엔진을 냉각하는 방식으로는 공냉식과 수냉식이 있는데 통상 많이 사용되는 수냉식 냉각장치는 실린더와 연소실을 둘러싸는 워터재킷, 물을 실린더로 압송 순환시키는 워터펌프, 온도가 높은 냉각수의 열을 외기에 전달하여 냉각하는 라디에이터, 엔진 시동 직후에 냉각수를 빨리 적정 온도로 올리기 위한 서모스탯등으로 구성되어 있다.There are two types of engine cooling methods: air-cooled and water-cooled. The water-cooled chillers commonly used include a water jacket surrounding a cylinder and a combustion chamber, a water pump that circulates water through a cylinder, and transfers heat of a high temperature coolant to the outside air. It consists of a radiator to cool, and a thermostat for quickly raising the coolant to the right temperature immediately after starting the engine.

그런데 냉각수를 방열 냉각하는 라디에이터의 경우 부하가 크지 않은 평속 주행시에에는 차속에 의한 풍량에 의해 충분한 냉각 효과를 얻을 수 있으나, 차량의 정차시 및 저속 주행시 또는 고속 고부하시에는 라디에이터를 통과하는 풍량(맞바람)만으로는 충분한 냉각 효과를 얻을 수 없어 엔진이 과열되기가 쉽다.However, in the case of a radiator radiating heat from the cooling water, a sufficient cooling effect can be obtained by the wind speed due to the speed of the vehicle when driving under a heavy load, but the amount of air passing through the radiator when the vehicle is stopped, at a low speed, or at a high speed and high load ) Alone does not provide sufficient cooling effect, and the engine is likely to overheat.

이때문에 라디에이터 후방에 냉각팬을 설치하고 강제 통풍을 시키므로써 정차시와 저속 주행시 및 고부하시에 충분한 냉각효과를 얻도록 하고 있다.For this reason, a cooling fan is installed at the rear of the radiator and forced ventilation is used to obtain a sufficient cooling effect at the time of stopping, at low speed, and at high loads.

라디에이터 냉각팬은 냉각 및 냉방 성능에 큰 영향을 주는 부품으로서 냉각팬의 사이즈(직경)가 크고 팬모터의 용량이 클수록 풍량이 증대되나 이는 엔진룸의 레이아웃 및 차량의 운전조건에 따라 결정되어질 사항으로서 차량의 냉각/냉방 성능 향상을 위해선 풍량이 큰 사이즈의 팬이 필요하나 이에따라 팬소음이 증가하고 차량 배터리의 충방전 성능을 저하시키게 되는 문제가 있어 통상적으로는 냉각팬의 크기를 일정 크기로 설계한 후 팬모터의 용량을 증대시켜 해결하고 있으나 팬모터의 용량을 증대시키는 방식 역시 배터리의 충방전 성능에 불리한 영향을 미치고 연비등에 악영향을 주는 문제가 지적되고 있다.The radiator cooling fan is a component that greatly affects the cooling and cooling performance. The larger the size (diameter) of the cooling fan and the larger the capacity of the fan motor, the more the air volume increases, but this is determined by the layout of the engine room and the driving conditions of the vehicle. In order to improve the cooling / cooling performance of a vehicle, a fan with a large air volume is required. Accordingly, there is a problem of increasing fan noise and lowering the charge / discharge performance of a vehicle battery. After solving the problem by increasing the capacity of the fan motor, but the method of increasing the capacity of the fan motor also has an adverse effect on the charging and discharging performance of the battery and adversely affect the fuel economy has been pointed out.

이에 본 발명은 상기한 점을 감안하여 제안한 것으로서 그의 목적으로 하는 것은 냉각수의 온도가 낮은 차량의 정차시나 저속 운전시에는 냉각팬의 사이즈가 최소화되어 소음 저감과 연비향상을 가져오며, 엔진의 고부하 고속 운전시에는 냉각팬의 사이즈가 확대되어 고풍량을 송풍하여 엔진의 과열을 방지할 수 있는 라디에이터 통풍용 가변 냉각팬 장치를 제공하는데 있다.Accordingly, the present invention has been proposed in view of the above, and its object is to minimize the size of the cooling fan at the time of stopping of a vehicle having a low temperature of cooling water or at low speed, thereby reducing noise and improving fuel efficiency, and increasing the high load and high speed of the engine. In operation, the size of the cooling fan is enlarged to provide a variable cooling fan device for radiator ventilation, which can blow a high air volume to prevent overheating of the engine.

본 발명은 상기한 목적을 달성하기 위하여 팬모터의 회전축에 고정되는 중심허브와;The present invention and the center hub fixed to the rotating shaft of the fan motor to achieve the above object;

그 허브의 외주에 복수개가 돌출 형성되는 고정팬과;A fixing fan having a plurality of protrusions formed on an outer circumference of the hub;

상기 고정팬의 단부에 출몰 가능하게 장착된 가변팬과;A variable fan mounted on the end of the fixed fan to be protruding;

라디에이터를 통과한 공기의 온도 변화에 따라 팽창과 수축을 반복하며, 상기 고정팬의 단부에 형성된 공간내에 상기 가변팬을 지지하도록 봉입되는 열팽창물질과;A thermal expansion material encapsulated to support the variable fan in a space formed at an end of the fixed fan and repeating expansion and contraction according to a change in temperature of the air passing through the radiator;

상기 열팽창물질의 팽창력에 대항하여 가변팬이 고정팬 내로 몰입되도록 끌어당기는 힘을 가하는 복귀스프링; 을 포함하여 구성되어 있다.A return spring for applying a pulling force to immerse the variable fan into the fixed fan against the expansion force of the thermal expansion material; It is configured to include.

도 1은 본 발명에 의한 라디에이터 통풍용 가변 냉각팬 장치를 나타내는 정면도1 is a front view showing a variable cooling fan device for radiator ventilation according to the present invention

도 2는 동상 가변 냉각팬 장치의 요부 측단면도2 is a side cross-sectional view showing main parts of the in-phase variable cooling fan device;

※ 도면의 주요 부분에 대한 부호의 설명※ Explanation of codes for main parts of drawing

1 : 가변냉각팬장치 2 : 허브1: Variable cooling fan device 2: Hub

3 : 고정팬 4 : 가변팬3: fixed fan 4: variable fan

5 : 공간 6 : 펠릿5: space 6: pellet

7 : 열팽창물질 8 : 복귀스프링7: thermally expandable material 8: return spring

이하 본 발명의 구성과 작용을 첨부한 도면을 참조하여 설명한다.Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에 의한 라디에이터 통풍용 가변 냉각팬 장치를 나타내는 정면도이고, 도 2는 동상 가변냉각팬장치의 요부단면도이다.1 is a front view showing a variable cooling fan apparatus for radiator ventilation according to the present invention, Figure 2 is a cross-sectional view of the main portion of the in-phase variable cooling fan apparatus.

본 발명의 가변 냉각팬 장치(1)는 중앙의 허브(2)와 그 허브(2) 외주에 형성된 복수개의 고정팬(3)과 그 고정팬(3)의 단부에 출몰가능하게 장착된 가변팬(4)으로 구성되어 있다.The variable cooling fan device 1 of the present invention is a variable fan mounted on the end of the hub 2 and the plurality of fixed fans 3 formed on the outer periphery of the hub 2 and the end of the fixed fan 3. It consists of (4).

허브(2)는 모터 회전축에 고정되어 회전하게 되며, 가변팬(4)은 고정팬(3) 단부에 형성된 공간(5)에 그의 하단이 수용되고, 펠릿(6)과의 사이에 열팽창 물질(7), 예를 들면 온도에 반응하여 수축과 팽창을 하는 왁스나 열팽창율이 큰 오일류가 수용되어 있다.The hub 2 is fixed to the motor shaft to rotate, and the variable fan 4 is accommodated at its lower end in the space 5 formed at the end of the fixed fan 3, and the thermal expansion material ( 7) For example, waxes that shrink and expand in response to temperature or oils having a high thermal expansion rate are contained.

그리고 가변팬(4)은 공간(5)내에 설치된 복귀스프링(8)에 의해 잡아당겨지는 힘을 받게 되므로 펠릿(6)내의 열팽창물질(7)이 수축하게 될 때 가변팬(4)은 복귀스프링(8)의 당김력에 의해 공간(5)내부로 몰입되도록 움직이게 된다.And the variable fan 4 is pulled by the return spring (8) installed in the space (5), so the variable fan (4) is the return spring when the thermal expansion material (7) in the pellet (6) is contracted By the pulling force of (8), it is moved to be immersed in the space (5).

이하에 본 발명의 작동 과정에 대하여 설명한다.The operation of the present invention will be described below.

차량이 정차시나 저속,저부하 운행시에는 냉각수의 온도가 낮기 때문에 가변냉각팬장치(1) 구동에 의해 라디에이터를 통과하여 송풍되는 공기의 온도도 낮게된다.When the vehicle is stopped or at low speed and low load, the temperature of the cooling water is low, and thus the temperature of the air blown through the radiator by the variable cooling fan device 1 is also lowered.

이 송풍되는 공기의 온도가 낮을 때에는 펠릿(6)속의 열팽창물질(7)이 수축하게 되며, 복귀스프링(8)의 당김력에 의해 가변팬(4)이 중심허브(2)쪽 방향으로 이동하게 되어 팬의 전체 직경이 감소하게 된다.When the temperature of the blown air is low, the thermally expandable material 7 in the pellets 6 contracts, and the variable fan 4 moves toward the center hub 2 by the pulling force of the return spring 8. This reduces the overall diameter of the fan.

이에따라 저속 저부하에 적합한 량의 송풍이 이루어지게 되며, 팬 사이즈가 크기가 축소되었기 때문에 전력의 소모량이 감소되게 된다.Accordingly, a suitable amount of blowing is achieved for low speed and low load, and power consumption is reduced because the fan size is reduced in size.

그러나 엔진이 고속,고부하 운전이 되면, 냉각수온이 상승하게 되고 이에따라 라디에이터를 통과하면서 열교환에 의해 냉각수의 온도를 낮추게 된 공기의 온도가 상승하게 된다.However, when the engine is driven at high speed and high load, the temperature of the cooling water rises and thus the temperature of the air lowering the temperature of the cooling water due to heat exchange increases as it passes through the radiator.

이때 고온의 공기가 팬(3)(4)에 접속하게 될때 그 열이 열팽창물질(7)에 전달되어 열팽창물질(7)이 팽창하게 된다. 이 팽창은 원심력 방향을 따라 일어나게 되고 가변팬(4)을 밀어내게 되어 공간(5)으로부터 돌출한 정도가 팽창량에 비례하여 커지게 되므로써 냉각팬(3)(4)의 전체 직경이 증대되고 이에따라 송풍되는 풍량이 많아져 라디에이터의 냉각이 원활하게 되는 것이다.At this time, when the hot air is connected to the fan (3) (4), the heat is transferred to the thermal expansion material (7) to expand the thermal expansion material (7). This expansion occurs along the centrifugal force direction and pushes out the variable fan 4 so that the amount of protruding from the space 5 increases in proportion to the amount of expansion, thereby increasing the overall diameter of the cooling fan 3 and 4 and thereby. The amount of air blown increases so that the cooling of the radiator is smooth.

이상과 같은 본 발명은 라디에이터를 통풍하는 냉각팬을 고정팬과, 그 고정팬으로부터 출몰이 가능한 가변팬의 조합으로 구성하고 가변팬을 송풍되는 공기 온도에 반응하여 열팽창을 하는 열팽창 물질에 의해 고정팬으로부터 돌출되도록 하는 것에 의해서, 적은 송풍량이 필요한 엔진의 저속, 저부하 운전시에는 낮은 냉각수온의 영향으로 수축된 열팽창 물질에 의해 가변팬이 고정팬내로 몰입되도록 하여냉각팬의 전체 직경의 크기를 축소시켜 소음저감 및 연비향상을 가져오게 되는 효과가 있으며, 많은 풍량이 요구되는 엔진의 고속,고부하 운전에서는 높은 냉각수온에 의해 열팽창 물질이 팽창하여 가변팬을 밀어내 냉각팬의 크기를 증대시키므로써 냉각 및 냉방 성능을 향상시킬 수 있다.The present invention as described above comprises a cooling fan for ventilating the radiator is a combination of a fixed fan and a variable fan that can be mounted from the fixed fan and the fixed fan by a thermal expansion material that thermally expands in response to the air temperature blown by the variable fan By protruding from the engine, the variable fan is immersed into the fixed fan by the thermal expansion material contracted under the influence of low cooling water temperature during low speed and low load operation of the engine requiring a small amount of airflow, thereby reducing the size of the entire diameter of the cooling fan. It is effective in reducing noise and improving fuel efficiency.In high speed and high load operation of an engine that requires a large amount of air, the thermal expansion material expands due to the high cooling water temperature and pushes the variable fan to increase the size of the cooling fan. And cooling performance can be improved.

Claims (3)

팬모터의 회전축에 고정되는 중심허브와;A center hub fixed to the rotating shaft of the fan motor; 그 허브의 외주에 복수개가 돌출 형성되는 고정팬과;A fixing fan having a plurality of protrusions formed on an outer circumference of the hub; 상기 고정팬의 단부에 출몰 가능하게 장착된 가변팬과;A variable fan mounted on the end of the fixed fan to be protruding; 라디에이터를 통과한 공기의 온도 변화에 따라 팽창과 수축을 반복하며, 상기 고정팬의 단부에 형성된 공간내에 상기 가변팬을 지지하도록 봉입되는 열팽창물질과;A thermal expansion material encapsulated to support the variable fan in a space formed at an end of the fixed fan and repeating expansion and contraction according to a change in temperature of the air passing through the radiator; 상기 열팽창물질의 팽창력에 대항하여 가변팬이 고정팬 내로 몰입되도록 끌어당기는 힘을 가하는 복귀스프링; 을 포함하여 구성되어 있는 것을 특징으로 하는 라디에이터 통풍용 가변 냉각팬장치.A return spring for applying a pulling force to immerse the variable fan into the fixed fan against the expansion force of the thermal expansion material; Radiator ventilation variable cooling fan device characterized in that it comprises a. 제 1 항에 있어서,The method of claim 1, 상기 가변팬은 상기 고정팬 단부에 형성한 공간에 출몰 가능하게 수용되고, 그 공간에 수용한 펠릿과의 사이에 상기 열팽창 물질이 밀봉되게 수용되어 있는 것을 특징으로 하는 라디에이터 통풍용 가변 냉각팬장치.And the variable fan is housed in a space formed at an end of the fixed fan, and the thermal expansion material is sealed to be contained between the pellets accommodated in the space. 제 2 항에 있어서,The method of claim 2, 상기 열팽창 물질은 왁스(wax)인 것을 특징으로 하는 라디에이터 통풍용 가변 냉각팬장치.The thermal expansion material is a wax (wax) characterized in that the radiator ventilation variable cooling fan apparatus.
KR1020010041092A 2001-07-10 2001-07-10 Changeable cooling fan device of radiator KR20030005697A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101021114B1 (en) * 2008-11-14 2011-03-14 현대자동차일본기술연구소 Cooling system for battery of driving vehicle
WO2017135484A1 (en) * 2016-02-05 2017-08-10 볼보 컨스트럭션 이큅먼트 에이비 Variable cooling-fan apparatus of construction machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990019553U (en) * 1997-11-19 1999-06-15 정몽규 Variable Cooling Fans
KR200159932Y1 (en) * 1995-10-18 1999-11-01 정몽규 Cooling fan

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200159932Y1 (en) * 1995-10-18 1999-11-01 정몽규 Cooling fan
KR19990019553U (en) * 1997-11-19 1999-06-15 정몽규 Variable Cooling Fans

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101021114B1 (en) * 2008-11-14 2011-03-14 현대자동차일본기술연구소 Cooling system for battery of driving vehicle
WO2017135484A1 (en) * 2016-02-05 2017-08-10 볼보 컨스트럭션 이큅먼트 에이비 Variable cooling-fan apparatus of construction machine

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