KR100448737B1 - Radiator cap apparatus - Google Patents

Radiator cap apparatus Download PDF

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Publication number
KR100448737B1
KR100448737B1 KR1020010062103A KR20010062103A KR100448737B1 KR 100448737 B1 KR100448737 B1 KR 100448737B1 KR 1020010062103 A KR1020010062103 A KR 1020010062103A KR 20010062103 A KR20010062103 A KR 20010062103A KR 100448737 B1 KR100448737 B1 KR 100448737B1
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KR
South Korea
Prior art keywords
radiator
pressure
pressure valve
coolant
overflow pipe
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KR1020010062103A
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Korean (ko)
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KR20030030248A (en
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이효조
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현대자동차주식회사
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Priority to KR1020010062103A priority Critical patent/KR100448737B1/en
Publication of KR20030030248A publication Critical patent/KR20030030248A/en
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Publication of KR100448737B1 publication Critical patent/KR100448737B1/en

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    • 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
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/029—Expansion reservoirs
    • 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
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/22—Liquid cooling characterised by evaporation and condensation of coolant in closed cycles; characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point
    • F01P2003/2292—Liquid cooling characterised by evaporation and condensation of coolant in closed cycles; characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point with thermostatically controlled by-pass
    • 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
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0204—Filling
    • F01P11/0209—Closure caps
    • F01P11/0238—Closure caps with overpressure valves or vent valves
    • F01P2011/0242—Closure caps with overpressure valves or vent valves setting the pressure valve
    • 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
    • F01P2037/00—Controlling

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

본 발명의 목적은 냉각수가 과열되어 라디에이터 내부가 규정압에 도달하게 되면, 과열된 냉각수와 내부공기를 리저버탱크내로 배출하여 일정압을 유지토록 하며, 그에 의해서도 압력이 저하되지 아니하고 더 높은 설정압력에 도달하게 될 때에는 냉각수를 워터펌프측에 바이패스시키게 되는 냉각수의 과열시 안전을 위한 2단제어 방식의 라디에이터 캡 장치를 제공하는 데 있다.An object of the present invention is to discharge the superheated coolant and internal air into the reservoir tank to maintain a constant pressure when the coolant is overheated and the inside of the radiator reaches the specified pressure, thereby maintaining a constant pressure, and thereby the The present invention provides a radiator cap device of a two-stage control type for safety during overheating of coolant that bypasses the coolant to the water pump.

이를위해 본 발명은 라디에이터의 필러넥크부를 개폐가능하게 밀봉장착하는 압력캡과;To this end, the present invention and the pressure cap for sealingly mounting the filler neck portion of the radiator;

일단은 상기 필러넥크부의 내부와 연통하고 타단은 리저버탱크측에 접속하는 오버플로파이프와;An overflow pipe having one end communicating with the inside of the pillar neck portion and the other end connected to the reservoir tank side;

라디에이터의 일정치 이상의 내부압 상승에 의하여 상기 오버플로파이프와 라디에이터 내부를 연통하도록 개방 작동하는 압력밸브와;A pressure valve that opens to communicate with the overflow pipe and the inside of the radiator by increasing an internal pressure of a radiator or more;

상기 압력밸브를 압력캡에 대하여 탄발하여 항시 라디에이터를 밀봉하는 방향으로 힘을 가하는 리턴스프링; 을 포함하여 구성되는 가압식 라디에이터 캡 장치에 있어서,A return spring which applies the force in a direction to seal the radiator at all times by firing the pressure valve against the pressure cap; In the pressurized radiator cap device comprising a,

상기 필러넥크부와 워터펌프의 입구측을 연결하도록 바이패스라인을 형성하되, 상기 바이패스라인은 라디에이터 내부압 상승에 의해 압력밸브가 열려 오버플로파이프를 개방한 후에도 압력이 계속 상승하여 규정치에 도달하게 되는 순간까지 압력밸브가 리턴스프링을 압축하면서 밀어올려질 때 라디에이터 내부와 워터펌프측을 연통하도록 개방되는 것을 특징으로 한다.A bypass line is formed to connect the filler neck part and the inlet side of the water pump, and the bypass line continues to rise to a prescribed value even after opening the overflow pipe by opening a pressure valve due to an increase in the radiator internal pressure. It is characterized in that the pressure valve is opened to communicate with the inside of the radiator and the water pump side when the pressure valve is pushed up while compressing the return spring.

Description

냉각수의 과열시 안전을 위한 2단제어 방식의 라디에이터 캡 장치{Radiator cap apparatus}Radiator cap apparatus of two-stage control method for safety when overheating of cooling water

본 발명은 냉각수의 오버히팅시 안전을 위한 2단제어 방식의 라디에이터 캡 장치에 관한 것이다.The present invention relates to a two-stage radiator cap device for safety during overheating of the cooling water.

실린더내의 연소가스의 온도는 2000℃ 이상에 달하므로 엔진을 냉각하여 과열되는 것을 방지하고 또한 적온으로 유지하기 위하여 냉각장치가 사용되는데, 통상 엔진을 순환하는 냉각수에 의한 수냉식 냉각장치가 많이 사용되고 있다.Since the temperature of the combustion gas in the cylinder reaches 2000 ° C. or more, a cooling device is used to prevent the engine from being overheated and to keep it at an appropriate temperature. In general, a water-cooled cooling device using cooling water circulating the engine is used.

그런데 엔진을 순환하면서 냉각에 사용된 냉각수는 온도가 상승하기 때문에 이 냉각수의 열을 외기에 전달하여 냉각하기 위하여 라디에이터가 엔진룸 전방에 장착되고 있다.However, since the temperature of the cooling water used for cooling while circulating the engine rises, a radiator is mounted in front of the engine room in order to transfer the cooling water to the outside air and to cool it.

라디에이터는 큰 방열 면적을 가지며 다량의 물을 담을 수 있는 일종의 탱크로서, 상부탱크와 하부탱크로 구성하고 가능한한 많은 열을 대기중에 발산하기 위하여 방열면적을 크게한 코어로 되어 있다.The radiator is a kind of tank that has a large heat dissipation area and can hold a large amount of water. The radiator is composed of an upper tank and a lower tank and has a large heat dissipation area in order to dissipate as much heat as possible in the atmosphere.

그런데 라디에이터 내부가 만일 외기와 통해 있으면 수온은 100℃ 이상으로 올라가지 않기 때문에 외기와의 온도차는 항상 「100℃ - 외기온도」가 된다.However, if the inside of the radiator is through the outside air, the water temperature does not rise above 100 ° C, so the temperature difference between the outside air is always "100 ° C-outside air temperature".

따라서 이 온도차를 크게하여 냉각효과를 좋게하기 위하여 수온을 100℃ 이상으로 높게 유지하는 방법이 사용되며, 도 3에 도시하는 것과 같이 라디에이터 캡(20)을 사용하여 라디에이터(21) 내부를 밀폐하여 온도가 높아지면 물이 팽창하여 액면위의 공기를 압축하므로 압력이 작용하여 냉각수가 100℃ 이상이 되어도 비등하지 않고 외기와의 온도차가 커지게 되며, 이 때문에 냉각효율이 커질 뿐 아니라 동일한 냉각효과를 얻는데 있어서 면적이 작은 라디에이터를 사용할 수 있으므로 중량도 경감할 수 있고 차체의 진동에 의해서도 냉각수가 누출되지 않는 잇점이 있어 현재 자동차의 대부분은 가압식의 라디에이터 캡(20)을 설치하고 있다.Therefore, in order to increase the temperature difference and improve the cooling effect, a method of maintaining the water temperature higher than 100 ° C. is used. As shown in FIG. 3, the radiator 21 is sealed by using the radiator cap 20 to close the temperature. When is high, water expands and compresses the air on the liquid surface, so the pressure acts and the cooling water does not boil even if it is over 100 ℃, and the temperature difference between the outside air is increased, which not only increases the cooling efficiency but also achieves the same cooling effect. Since a radiator having a small area can be used, the weight can be reduced, and the coolant does not leak even by vibration of the vehicle body. Most of the automobiles are provided with a pressurized radiator cap 20.

도시한 가압식 라디에이터 캡(20)은 압력밸브식으로서 엔진이 운전중 냉각계통내에 생긴 압력을 유지하고 냉각수가 110∼120℃ 정도로 올라가 압력이 동반하여상승하게 되면, 밸브(22)를 밀어 오버플로파이프(23)를 통해 리저버탱크(24)로 빼내서 라디에이터(21)의 내부를 항상 일정압으로 유지시키게 된다.The pressurized radiator cap 20 shown in FIG. 1 is a pressure valve type, which maintains the pressure generated in the cooling system during operation of the engine, and when the coolant rises to about 110 to 120 ° C and rises with pressure, the valve 22 is pushed to the overflow pipe. Through the 23 to the reservoir tank 24 to maintain the inside of the radiator 21 at a constant pressure at all times.

그러나 종래의 압력밸브식 라디에이터 캡(20)에 의하면 실린더헤드 가스켓의 누설, 과다한 엔진의 열부하, 쿨링팬의 작동불량, 서모스탯 작동불량, 냉각수 주입량 감소 또는 냉각수의 변질등에 따라 냉각수가 비등하여 과열(over heating)되면 비등된 냉각수에 의해 라디에이터 캡(20)에 높은 압력이 걸리게 되므로 비등된 물과 수증기가 리저버탱크(24) 측으로 과다하게 흘러 넘쳐 냉각수 감소에 따라 엔진손상을 유발할 수 있는 문제가 있으며, 또 냉각수 점검시 운전자가 화상을 입을 우려가 있으며, 냉각수온 센서에 의해 냉각수 과열이 검출되어 운전석 계기판에 그 사실의 표시되더라도 순간적으로 냉각수의 제어가 곤란하므로 즉시 적절한 응급조치를 취하지 못할 경우 엔진손상을 유발할 위험성이 상존하고 있었다.However, according to the conventional pressure valve type radiator cap 20, the cooling water boils due to leakage of the cylinder head gasket, excessive engine heat load, cooling fan operation failure, thermostat operation failure, decrease in cooling water injection amount, or deterioration of the cooling water. When the overheating) is a high pressure is applied to the radiator cap 20 by the boiled coolant, there is a problem that the boiled water and water vapor excessively flows to the reservoir tank 24, causing the engine damage by reducing the coolant, In addition, the driver may be burned when checking the coolant. Even if the coolant overheating is detected by the coolant temperature sensor and the fact is displayed on the dashboard of the driver's seat, it is difficult to control the coolant instantaneously. There was a risk of causing it.

이에 본 발명은 상기한 점을 감안하여 제안한 것으로 그의 목적으로 하는 것은Therefore, the present invention has been proposed in view of the above points, and its object is to

냉각수가 과열되어 라디에이터 내부가 규정압에 도달하게 되면, 과열된 냉각수와 내부공기를 리저버탱크내로 배출하여 일정압을 유지토록 하며, 그에 의해서도 압력이 저하되지 아니하고 더 높은 설정압력에 도달하게 될 때에는 냉각수를 워터펌프측에 바이패스시키게 되는 냉각수의 과열시 안전을 위한 2단제어 방식의 라디에이터 캡 장치를 제공하는 데 있다.When the coolant is overheated and the inside of the radiator reaches the specified pressure, the superheated coolant and the internal air are discharged into the reservoir tank to maintain a constant pressure, whereby the coolant is not lowered and a higher set pressure is reached. It is to provide a radiator cap device of a two-stage control method for the safety of overheating of the cooling water to bypass the water pump side.

상기한 목적을 달성하기 위하여 본 발명은The present invention to achieve the above object

라디에이터의 필러넥크부를 개폐가능하게 밀봉장착하는 압력캡과;A pressure cap for sealingly mounting and closing the filler neck portion of the radiator;

일단은 상기 필러넥크부의 내부와 연통하고 타단은 리저버탱크측에 접속하는 오버플로파이프와;An overflow pipe having one end communicating with the inside of the pillar neck portion and the other end connected to the reservoir tank side;

라디에이터의 일정치 이상의 내부압 상승에 의하여 상기 오버플로파이프와 라디에이터 내부를 연통하도록 개방 작동하는 압력밸브와;A pressure valve that opens to communicate with the overflow pipe and the inside of the radiator by increasing an internal pressure of a radiator or more;

상기 압력밸브를 압력캡에 대하여 탄발하여 항시 라디에이터를 밀봉하는 방향으로 힘을 가하는 리턴스프링; 을 포함하여 구성되는 가압식 라디에이터 캡 장치에 있어서,A return spring which applies the force in a direction to seal the radiator at all times by firing the pressure valve against the pressure cap; In the pressurized radiator cap device comprising a,

상기 필러넥크부와 워터펌프의 입구측을 연결하도록 바이패스라인을 형성하되, 상기 바이패스라인은 라디에이터 내부압 상승에 의해 압력밸브가 열려 오버플로파이프를 개방한 후에도 압력이 계속 상승하여 규정치에 도달하게 되는 순간까지 압력밸브가 리턴스프링을 압축하면서 밀어올려질 때 라디에이터 내부와 워터펌프측을 연통하도록 개방되는 것을 특징으로 한다.A bypass line is formed to connect the filler neck part and the inlet side of the water pump, and the bypass line continues to rise to a prescribed value even after opening the overflow pipe by opening a pressure valve due to an increase in the radiator internal pressure. It is characterized in that the pressure valve is opened to communicate with the inside of the radiator and the water pump side when the pressure valve is pushed up while compressing the return spring.

도 1은 본 발명에 의한 수냉식 냉각장치를 나타낸 도면.1 is a view showing a water-cooled cooling apparatus according to the present invention.

도 2는 본 발명에 의한 라디에이터 캡 장치를 나타내는 도면.Figure 2 shows a radiator cap device according to the present invention.

도 3은 종래기술.3 is a prior art.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1 : 라디에이터 2 : 필러넥크부1: Radiator 2: Filler Neck

3 : 압력캡 4 : 압력밸브3: pressure cap 4: pressure valve

5 : 리턴스프링 6 : 밸브시트5: Return Spring 6: Valve Seat

7 : 오버플로파이프 8 : 리저버탱크7: overflow pipe 8: reservoir tank

9 : 바이패스라인 10: 워터펌프9: bypass line 10: water pump

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

도 1은 본 발명에 의한 수냉식 엔진 냉각장치를 나타낸 도면이며, 도 2는 본 발명에 의한 가압식 라디에이터 캡 장치의 상세도이다.1 is a view showing a water-cooled engine cooling apparatus according to the present invention, Figure 2 is a detailed view of the pressurized radiator cap device according to the present invention.

도면중 부호 1은 냉각수를 방열 냉각하는 라디에이터로서, 라디에이터(1)의 상부에는 필러넥크부(2)가 형성되어 있고, 그 필러넥크부(2)에는 압력캡(3)이 밀봉되게 장착되어 있다.In the drawing, reference numeral 1 denotes a radiator that radiates and cools the cooling water. A pillar neck portion 2 is formed at an upper portion of the radiator 1, and a pressure cap 3 is attached to the pillar neck portion 2 in a sealed manner. .

이 필러넥크부(2)에는 압력밸브(4)가 설치되며, 이 압력밸브(4)는 압력캡(3)과의 사이에 수용되는 리턴스프링(5)에 의해 탄발되는 힘을 받으므로 항상 밸브시트(6)에 밀착하는 힘을 받는다.The filler neck portion 2 is provided with a pressure valve 4, and the pressure valve 4 is always energized by the force springed by the return spring 5 received between the pressure cap 3 and the valve. The force adhering to the sheet 6 is received.

그리고 상기 필러넥크부(2)에 오버플로파이프(7)의 일단이 접속하고 있으며, 오버플로파이프(7)의 타단은 리저버탱크(8)측에 접속되어 있다.One end of the overflow pipe 7 is connected to the pillar neck portion 2, and the other end of the overflow pipe 7 is connected to the reservoir tank 8 side.

또 상기 오버플로파이프(7)보다는 상부측에 바이패스라인(9)의 일단이 필러넥크부(2) 내부에 연통하도록 접속되고, 바이패스라인(9)의 타단은 워터펌프(10)의 흡입구측, 예를들면 라디에이터 출구라인(11)이나 또는 라디에이터 출구라인(11)에 접속하는 웜업용 바이패스라인(12)에 접속하고 있다.In addition, one end of the bypass line 9 is connected to the upper side rather than the overflow pipe 7 so as to communicate with the inside of the pillar neck portion 2, and the other end of the bypass line 9 is an inlet port of the water pump 10. On the side, for example, it is connected to the radiator outlet line 11 or the warm-up bypass line 12 connected to the radiator outlet line 11.

이와같은 본 발명에 의한 작동과정을 설명하면 다음과 같다.Referring to the operation process according to the present invention as follows.

엔진(13)이 가동되어 웜업상태가 되면 서모스탯(14)이 열려 냉각수는 라디에이터 입구라인(15)을 통해 라디에이터(1)로 들어가 라디에이터(1)를 순환하면서 방열냉각된 후 라디에이터 출구라인(11)을 통해 워터펌프(10)로 유입되어 워터펌프(10)에 의해 엔진(13) 내부를 순환하는 동작을 반복하게 된다.When the engine 13 starts and warms up, the thermostat 14 is opened, and the coolant enters the radiator 1 through the radiator inlet line 15, circulates and radiates the radiator 1, and then radiates the radiator outlet line 11. It is introduced into the water pump 10 through) repeats the operation of circulating the inside of the engine 13 by the water pump (10).

그런데 이때 라디에이터(1)의 내부압이 설정치 이상으로 높아지게 되면, 그 내부압이 리턴스프링(5)의 탄성력보다 커지게 되어 압력밸브(4)가 리턴스프링(5)을 압축하면서 상승하여 열려 오버플로파이프(7)가 라디에이터(1) 내부와 연통하게 된다.However, if the internal pressure of the radiator 1 becomes higher than the set value at this time, the internal pressure becomes larger than the elastic force of the return spring 5 so that the pressure valve 4 rises while compressing the return spring 5 to open and overflow. The pipe 7 is in communication with the inside of the radiator 1.

이에따라 비등된 냉각수와 압축된 공기가 개방된 오버플로파이프(7)를 통해 리저버탱크(8)로 방출되어 라디에이터(1)의 내부압을 낮추어 안정시키게 되며, 내부압이 저하되면 곧바로 리턴스프링(5)의 탄발력에 의해 압력밸브(4)가 하강하여 오버플로파이프(7)와 라디에이터(1)의 연통상태를 차단하게 되는 것이다.Accordingly, the boiled coolant and the compressed air are discharged to the reservoir tank 8 through the open overflow pipe 7 to stabilize the radiator 1 by lowering the internal pressure, and as soon as the internal pressure decreases, the return spring 5 The pressure valve 4 is lowered by the repulsive force of) to block the communication state between the overflow pipe 7 and the radiator 1.

그러나 만일 오버플로파이프(7)를 통해 비등된 냉각수를 리저버탱크(8)로 방출함에도 불구하고 엔진(13)의 과도한 과열로 라디에이터(1)내로 과열된 냉각수가 계속 유입되어 내부압이 저하되지 않고 계속 상승하게 되면, 이에따라 압력밸브(4)는 리턴스프링(5)을 압축하면서 더욱 상승하여 바이패스라인(9)마저도 개방하게 된다.However, even though the coolant boiled through the overflow pipe 7 to the reservoir tank 8, the superheated coolant continues to flow into the radiator 1 due to excessive overheating of the engine 13 so that the internal pressure does not decrease. If it continues to rise, accordingly, the pressure valve 4 will raise further, compressing the return spring 5, and will open the bypass line 9 also.

즉, 오버플로파이프(7)를 개방하도록 규정된 압력이 0.9bar 이라면 바이패스라인(9)이 열리게 되는 규정압은 그보다 높은 1.0bar로 설정되어 있어, 그 높은 설정압에 도달하게 되면, 오버플로파이프(7)와 바이패스라인(9)이 동시에 개방되는 것이다.That is, if the pressure prescribed to open the overflow pipe 7 is 0.9 bar, the prescribed pressure at which the bypass line 9 is opened is set to 1.0 bar higher than that. When the high set pressure is reached, the overflow is reached. The pipe 7 and the bypass line 9 are open at the same time.

이와같이하여 바이패스라인(9)이 개방되면 비등딘 냉각수는 워터펌프(10)측으로도 흘러넘치게 되므로 리저버탱크(8)측으로 너무 많은 냉각수가 흘러넘쳐 냉각수 부족을 초래하는 일이 없게 되는 것이다.In this way, when the bypass line 9 is opened, the boiled cooling water also overflows to the water pump 10 side, so that too much cooling water overflows to the reservoir tank 8 side, so that the cooling water is not shortened.

다음에 라디에이터(1) 내부압이 낮아지면 압력밸브(4)가 하강하여 바이패스라인(9), 오버플로파이프(7) 순으로 연통상태를 차단하게 되는 것이다.Next, when the internal pressure of the radiator 1 is lowered, the pressure valve 4 is lowered to block the communication state in the order of the bypass line 9 and the overflow pipe 7.

이상과 같은 본 발명은 라디에이터 내부압이 규정치 이상 높아지게 되면 오버플로파이프가 라디에이터와 리저버탱크를 연통하도록 압력밸브가 개방작동하여 비등된 냉각수와 공기를 리저버탱크측에 배출하는 것은 종래와 동일하나 라디에이터 내부압이 더욱 높아지게 되면 상승하는 압력밸브에 의해 개방되어 라디에이터와 워터펌프 입구측을 연통하게 되는 바이패스라인을 마련하는 것에 의해서, 비등된 냉각수가 라디에이터 캡 및 리저버탱크를 과도하게 흘러넘치는 것을 방지하고, 워터펌프로 리턴시키게 되므로 냉각수 부족에 의한 엔진손상을 방지하고, 뜨거운 냉각수의 흘러넘침에 의한 화상등을 방지할 수 있고, 오버히팅의 발생을 감지하여 안전조치를 취할 수 있게 되는 효과가 있다.According to the present invention as described above, when the internal pressure of the radiator becomes higher than the prescribed value, the pressure valve is opened so that the overflow pipe communicates with the radiator and the reservoir tank, so that the boiled coolant and air are discharged to the reservoir tank side as in the prior art, but inside the radiator By increasing the pressure, by providing a bypass line which is opened by the rising pressure valve and communicates with the radiator and the water pump inlet side, it prevents the boiled cooling water from excessively overflowing the radiator cap and reservoir tank, Since it is returned to the water pump, it is possible to prevent engine damage due to lack of coolant, to prevent burns due to overflow of hot coolant, and to take safety measures by detecting the occurrence of overheating.

Claims (1)

라디에이터의 필러넥크부를 개폐가능하게 밀봉장착하는 압력캡과;A pressure cap for sealingly mounting and closing the filler neck portion of the radiator; 일단은 상기 필러넥크부의 내부와 연통하고 타단은 리저버탱크측에 접속하는 오버플로파이프와;An overflow pipe having one end communicating with the inside of the pillar neck portion and the other end connected to the reservoir tank side; 라디에이터의 일정치 이상의 내부압 상승에 의하여 상기 오버플로파이프와 라디에이터 내부를 연통하도록 개방 작동하는 압력밸브와;A pressure valve that opens to communicate with the overflow pipe and the inside of the radiator by increasing an internal pressure of a radiator or more; 상기 압력밸브를 압력캡에 대하여 탄발하여 항시 라디에이터를 밀봉하는 방향으로 힘을 가하는 리턴스프링; 을 포함하여 구성되는 가압식 라디에이터 캡 장치에 있어서,A return spring which applies the force in a direction to seal the radiator at all times by firing the pressure valve against the pressure cap; In the pressurized radiator cap device comprising a, 상기 필러넥크부와 워터펌프의 입구측을 연결하도록 바이패스라인을 형성하되, 상기 바이패스라인은 라디에이터 내부압 상승에 의해 압력밸브가 열려 오버플로파이프를 개방한 후에도 압력이 계속 상승하여 규정치에 도달하게 되는 순간까지 압력밸브가 리턴스프링을 압축하면서 밀어올려질 때 라디에이터 내부와 워터펌프측을 연통하도록 개방되는 것을 특징으로 하는 냉각수의 과열시 안전을 위한 2단제어 방식의 라디에이터 캡 장치.A bypass line is formed to connect the filler neck part and the inlet side of the water pump, and the bypass line continues to rise to a prescribed value even after opening the overflow pipe by opening a pressure valve due to an increase in the radiator internal pressure. Radiator cap device of the two-stage control method for the safety of overheating of the coolant, characterized in that the pressure valve is opened to communicate with the inside of the radiator and the water pump side when the pressure valve is pushed up while compressing the return spring.
KR1020010062103A 2001-10-09 2001-10-09 Radiator cap apparatus KR100448737B1 (en)

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KR101015432B1 (en) * 2003-08-25 2011-02-17 한라공조주식회사 A cap-device of radiator

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FR3011306B1 (en) * 2013-10-01 2016-02-05 Illinois Tool Works VALVE, COOLANT DEGASSING ASSEMBLY, AND COOLANT DEGASSING METHOD
KR102452554B1 (en) * 2018-04-06 2022-10-07 현대자동차주식회사 Engine coolant separator and engine cooling system having the same

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JPH09166021A (en) * 1995-12-15 1997-06-24 Calsonic Corp Radiator pressure adjusting mechanism
KR970044499A (en) * 1995-12-26 1997-07-26 전성원 Engine cooling system
KR19990025364U (en) * 1997-12-16 1999-07-05 양재신 Radiator cap for pressure relief
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JPH0267423A (en) * 1988-09-02 1990-03-07 Nissan Motor Co Ltd Cooling device for water-cooled engine
JPH09166021A (en) * 1995-12-15 1997-06-24 Calsonic Corp Radiator pressure adjusting mechanism
KR970044499A (en) * 1995-12-26 1997-07-26 전성원 Engine cooling system
KR19990025364U (en) * 1997-12-16 1999-07-05 양재신 Radiator cap for pressure relief
JP2000161064A (en) * 1998-11-26 2000-06-13 Nippon Thermostat Kk Fail safe mechanism of thermostat valve

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101015432B1 (en) * 2003-08-25 2011-02-17 한라공조주식회사 A cap-device of radiator

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