KR0139567Y1 - Cooling system of an exhaust valve for internal engine - Google Patents

Cooling system of an exhaust valve for internal engine Download PDF

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Publication number
KR0139567Y1
KR0139567Y1 KR2019940013983U KR19940013983U KR0139567Y1 KR 0139567 Y1 KR0139567 Y1 KR 0139567Y1 KR 2019940013983 U KR2019940013983 U KR 2019940013983U KR 19940013983 U KR19940013983 U KR 19940013983U KR 0139567 Y1 KR0139567 Y1 KR 0139567Y1
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KR
South Korea
Prior art keywords
hollow portion
guide tube
valve
exhaust valve
wall
Prior art date
Application number
KR2019940013983U
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Korean (ko)
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KR960001713U (en
Inventor
김규완
Original Assignee
전성원
현대자동차주식회사
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Priority to KR2019940013983U priority Critical patent/KR0139567Y1/en
Publication of KR960001713U publication Critical patent/KR960001713U/en
Application granted granted Critical
Publication of KR0139567Y1 publication Critical patent/KR0139567Y1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00Liquid cooling
    • F01P3/12Arrangements for cooling other engine or machine parts
    • F01P3/14Arrangements for cooling other engine or machine parts for cooling intake or exhaust valves

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)

Abstract

본 고안은 내연기관용 배기밸브 냉각장치에 관한 것으로서 냉각액을 밸브의 개폐와 동기하여 강제 대류시켜서 냉각효율을 증대토록 한 것이다.The present invention relates to an exhaust valve cooling device for an internal combustion engine, and the cooling liquid is forced to convection in synchronism with the opening and closing of the valve to increase the cooling efficiency.

본 고안은 밸브 스템(1)에 형성된 중공부(2)에 양단에 플렌지(3)(3')가 형성되고 플렌지(3)(3')에 냉각액 유통공(4)(4')을 뚫은 안내관(5)을 플렌지(3)(3')로서 중공부(2)의 양단에 고정하여 안내관(5)과 중공부(2)의 내벽사이에 일정간극(t)이 형성되게 하고, 안내관(5)의 내부에 볼(6)을 유동할 수 있게 넣고 그 양측에 코일 스프링(7)(7')을 설치한 후 냉각액 유통공(8)(8')이 뚫린 마개(9)(9')로 막으며, 중공부(2)의 내벽에는 요철부(10)를 형성함과 동시에 금속나트륨 등의 냉각액을 주입한 것이다.In the present invention, flanges 3 and 3 'are formed at both ends of the hollow portion 2 formed in the valve stem 1, and the coolant flow holes 4 and 4' are drilled through the flanges 3 and 3 '. The guide tube 5 is fixed to both ends of the hollow portion 2 as the flanges 3 and 3 'so that a constant gap t is formed between the guide tube 5 and the inner wall of the hollow portion 2, Inserting the ball 6 to the inside of the guide tube (5), the coil spring (7) (7 ') is installed on both sides thereof, and the stopper (9) through which the coolant flow holes (8) (8') are drilled. (9 '), and the inner wall of the hollow portion (2) to form a concave-convex portion 10 and at the same time a cooling liquid such as metal sodium is injected.

Description

내연기관용 배기밸브의 냉각장치Cooling device of exhaust valve for internal combustion engine

제1도는 본 고안의 실시예의 단면도.1 is a cross-sectional view of an embodiment of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 밸브 스템 2 : 중공부1 valve stem 2 hollow part

4,4' : 유통공 5 : 안내관4,4 ': Distributor 5: Guide

6 : 볼 7,7' : 코일 스프링6: ball 7,7 ': coil spring

8,8' : 유통공 9,9' : 마개8,8 ': distributor 9,9': stopper

10 : 요철부10: uneven portion

본 고안은 내연기관용 배기밸브의 냉각장치에 관한 것이다.The present invention relates to a cooling device of an exhaust valve for an internal combustion engine.

주지하는 바와 같이 내연기관용 배기 밸브는 밸브 헤드가 연소가스에 노출되어 800℃ 정도가 되므로 그 재질은 비중이 작고 가벼우며, 강도가 크고 충격에 견뎌야 하며, 내열성과 내마멸성이 양호함과 동시에 열전도가 좋고 열팽창이 작을 것이 요구되고, 그 사용수명 등을 연장하기 위하여 밸브 헤드 냉각수단을 구비하고 있는 바, 종래의 배기 밸브 냉각장치는 밸브 스팀을 중공으로 하고 그 속에 열전도성이 양호한 금속나트륨을 넣어서 밸브의 운전중에 나트륨이 액화되어 밸브의 운동에 의하여 상하 유동하면서 밸브 헤드의 열을 밸브 스템을 거쳐 방출하도록 되어 있으나 액화 나트륨의 상하 유동을 밸브의 운동에만 의존하고 있어서 밸브 헤드의 냉각이 양호하지 못한 결점이 있는 것이다.As is well known, the exhaust valve for an internal combustion engine has a specific gravity, low weight, high strength, high impact resistance, good heat resistance and abrasion resistance, and good heat conduction, since the valve head is exposed to combustion gas at about 800 ° C. The thermal expansion is required to be small, and the valve head cooling means is provided to prolong the service life of the valve. In the conventional exhaust valve cooling device, the valve steam is hollowed and metal sodium having good thermal conductivity is put thereinto Sodium is liquefied during operation and flows up and down by the movement of the valve to release the heat of the valve head through the valve stem. However, the up and down flow of sodium liquefied depends solely on the movement of the valve. It is.

본 고안은 상기한 결점을 시정하여 냉각액을 밸브의 개폐와 동기하여 강제대류토록한 내연기관용 배기 밸브의 냉각장치를 제공하는 것을 목적으로한다.The object of the present invention is to provide a cooling device for an exhaust valve for an internal combustion engine in which the cooling liquid is forced to convection in synchronism with the opening and closing of the valve by correcting the above drawbacks.

본 고안은 상기한 목적물 달성하기 위하여 밸브 스템에 형성된 중공부에 양단에 플렌지가 형성되고 플렌지에 유통공을 뚫은 안내관을 중공부의 내벽과 일정간극을 두고 고정하며, 안내관 내부에 볼을 유동할 수 있게 넣고 그 양측에 코일 스프링을 설치한 후 유통공이 뚫린 마개로 막으며, 중공부에 냉각액을 넣어서 된 것이다.In order to achieve the above object, a flange is formed at both ends of the hollow portion formed in the valve stem, and the guide tube having a flow hole in the flange is fixed with a predetermined gap with the inner wall of the hollow portion, and the ball flows inside the guide tube. It is made by inserting the coil springs on both sides of it, and then plugging it with a stopper with a hole in the distribution hole.

이하 실시예 도면에 의하여 설명한다.A description with reference to the following drawings.

본 고안은 제1도에 도시한 바와 같이 밸브 스템(1)에 형성된 중공부(2)에 양단에 플렌지(3)(3')가 형성되고 플렌지(3)(3')에 냉각액 유통공(4)(4')을 뚫은 안내관(5)을 플렌지(11)(3')로서 중공부(2)의 양단에 고정하여 안내관(5)과 중공부(2)의 내벽사이에 일정간극(t)이 형성되게 하고, 안내관(5)의 내부에 블(6)은 유동할 수 있게 넣고 그 양측에 코일 스프링(7)(7')을 설치한 후 냉각액 유통공(8)(8')이 뚫린 마개(9)(9')로 막으며, 중공부(2)의 내벽에는 요철부(10)를 형성함과 동시에 금속나트륨 등의 냉각액을 주입한 것이다.According to the present invention, as shown in FIG. 1, the flanges 3 and 3 'are formed at both ends of the hollow portion 2 formed in the valve stem 1, and the coolant flow holes are formed in the flanges 3 and 3'. 4) A guide tube 5 drilled through 4 'is fixed to both ends of the hollow part 2 as the flanges 11 and 3' so that a constant gap is formed between the guide tube 5 and the inner wall of the hollow part 2. (t) is formed, and the bladder 6 is allowed to flow inside the guide tube 5, and coil springs 7 and 7 'are installed on both sides thereof, and then the coolant flow holes 8 and 8 are provided. ') Is plugged with a stopper (9) (9'), and the inner wall of the hollow portion (2) is formed with an uneven portion (10) and at the same time is injected with a coolant such as metal sodium.

이상과 같은 본 고안은 밸브의 상하 개폐에 따라 볼(6)이 밸브의 개폐방향으로 움직이고 안내관(5)에 채워져 있던 냉각액이 마개(9)(9')에 뚫린 유통공(8)(8')으로 배출되어 플렌지(3)(3')에 뚫린 유통공(4)(4')을 통하여 중공부(2)의 내벽과 안내관(5)사이에 형성된 간극(t)으로 유동하였다가 다시 위의 반대로 냉각액이 안내관(5)에 되돌아 가는 작용을 반복하면서 냉각액이 강제 대류되어 밸브 헤드를 냉각시키고 가열된 냉각액은 중공부(2)의 내벽에 형성된 요철부(10)등에서 방열되는 것이다.According to the present invention as described above, in accordance with the vertical opening and closing of the valve, the ball 6 moves in the opening and closing direction of the valve, and the coolant filled in the guide tube 5 is opened through the stoppers 9, 9 '. Discharged into ') and flowed through the gaps (t) formed between the inner wall of the hollow part (2) and the guide tube (5) through the distribution holes (4) and (4') drilled through the flange (3) (3 '). On the contrary, the coolant is forced to convection and the valve head is cooled by repeating the action of returning the coolant back to the guide tube 5, and the heated coolant is radiated from the uneven part 10 formed on the inner wall of the hollow part 2. .

이상과 같이 본 고안은 밸브 스템에 형성된 중공부에 안내관을 설치하고 그 내부에 볼을 유동할 수 있게 끼워서 밸브의 개폐와 동기하여 볼을 유동시키고 활의 유동에 의하여 냉각액을 강제 대류시키므로서 밸브 헤드의 냉각효율이 가일층 증대되는 효과가 있는 것이다.As described above, the present invention installs a guide tube in the hollow formed in the valve stem and inserts the ball into the inside thereof so that the ball flows in synchronism with the opening and closing of the valve, thereby forcing the convection of the coolant by the flow of the bow. The cooling efficiency of the head is further increased.

Claims (2)

밸브 스템에 형성된 중공부에 양단에 플렌지가 형성되고 플렌지에 유통공을 뚫은 안내관을 중공부의 내벽과 일정간극을 두고 고정하며, 안내관 내부에 볼을 유동할 수 있게 넣고 그 양측에 코일 스프링을 설치한 후 유통공이 뚫린 마개로 막으며, 중공부에 냉각액을 넣어서 된 내연기관용 배기밸브 냉각장치.A flange is formed at both ends of the hollow portion formed in the valve stem, and the guide tube having a hole in the flange is fixed at a predetermined gap with the inner wall of the hollow portion, and the ball is allowed to flow inside the guide tube. Exhaust valve cooling device for internal combustion engine, which is blocked by a stopper with a distribution hole and installed with a coolant in the hollow part after installation. 제1항에 있어서 중공부의 내벽에 요철부를 형성한 내연기관용 배기밸브 냉각장치.The exhaust valve cooling apparatus for an internal combustion engine according to claim 1, wherein an uneven portion is formed on an inner wall of the hollow portion.
KR2019940013983U 1994-06-16 1994-06-16 Cooling system of an exhaust valve for internal engine KR0139567Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019940013983U KR0139567Y1 (en) 1994-06-16 1994-06-16 Cooling system of an exhaust valve for internal engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019940013983U KR0139567Y1 (en) 1994-06-16 1994-06-16 Cooling system of an exhaust valve for internal engine

Publications (2)

Publication Number Publication Date
KR960001713U KR960001713U (en) 1996-01-19
KR0139567Y1 true KR0139567Y1 (en) 1999-03-20

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