KR200155760Y1 - Seal structure of valve open-close device - Google Patents

Seal structure of valve open-close device Download PDF

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Publication number
KR200155760Y1
KR200155760Y1 KR2019950047329U KR19950047329U KR200155760Y1 KR 200155760 Y1 KR200155760 Y1 KR 200155760Y1 KR 2019950047329 U KR2019950047329 U KR 2019950047329U KR 19950047329 U KR19950047329 U KR 19950047329U KR 200155760 Y1 KR200155760 Y1 KR 200155760Y1
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South Korea
Prior art keywords
valve
stem seal
intake
seal structure
oil
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KR2019950047329U
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Korean (ko)
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KR970039993U (en
Inventor
윤지민
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정몽규
현대자동차주식회사
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Priority to KR2019950047329U priority Critical patent/KR200155760Y1/en
Publication of KR970039993U publication Critical patent/KR970039993U/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/08Valves guides; Sealing of valve stem, e.g. sealing by lubricant
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/10Connecting springs to valve members

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

밸브 개폐 기구에서 스템 실(51)과 흡, 배기 밸브(V)를 스프링(52)으로 압착시킴과 아울러 립을 형성하여 오일의 유입을 차단하게 됨은 상기한 스프링(52)의 탄성 변화와 스템 실의 마모등으로 인해 오일 차단 효과가 낮아짐을 개선하기 위하여, 밸브(V)에 다수의 립(1, 2, 3)이 형성되어 있고, 상기한 립(1, 2, 3)에 대응되도록 다수의 스프링(4, 5, 6)이 스템 실(51)의 외주에 결합하여 구성함으로써 밀폐 효과가 향상된다.In the valve opening / closing mechanism, the stem seal 51 and the intake / exhaust valve V are compressed with the spring 52, and a lip is formed to block the inflow of oil. In order to improve the oil blocking effect is lowered due to the wear, such as a plurality of ribs (1, 2, 3) are formed in the valve (V), a plurality of lip (1, 2, 3) to correspond to the As the springs 4, 5, and 6 are configured to be coupled to the outer circumference of the stem seal 51, the sealing effect is improved.

Description

자동차용 밸브 개폐 장치의 시일 구조Seal structure of automobile valve opening and closing device

제1도는 본 고안에 따른 자동차용 밸브 개폐 장치의 시일 구조를 도시한 부분 확대 단면도.1 is a partially enlarged cross-sectional view showing a seal structure of a valve opening and closing device for an automobile according to the present invention.

제2도는 일반적인 자동차용 밸브 개폐 장치를 도시한 단면도.2 is a cross-sectional view showing a general automotive valve opening and closing device.

제3도는 제2도에서 밸브 개폐 장치의 시일 구조를 도시한 단면도.3 is a cross-sectional view showing the seal structure of the valve opening and closing device in FIG.

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

1, 2, 3 : 립 4, 5, 6 : 스프링1, 2, 3: Lip 4, 5, 6: Spring

50 : 밸브 가이드 51 : 스템 실50: valve guide 51: stem seal

본 고안은 시일 구조에 관한 것으로서, 보다 상세하게는 자동차용 밸브 개폐 장치의 시일 구조에 관한 것이다.The present invention relates to a seal structure, and more particularly to a seal structure of an automobile valve opening and closing device.

일반적으로, 자동차는 차체와 새시로 구분되는 바, 상기한 새시는 엔진, 동력 전달 장치, 서스펜션등이 서로 유기적으로 연결 구성되어 있고, 차체는 상기한 각 장치를 지지함과 아울러 외관을 이루도록 구성되어 있다.In general, a car is divided into a car body and a chassis, and the chassis is composed of an engine, a power transmission device, a suspension, and the like, which are organically connected to each other, and the car body is configured to support each of the above devices and form an appearance. have.

상기한 바와 같은 자동차는 엔진에서 발생된 동력을 동력 전달 장치를 통해 구동축에 전달함으로써 여기에 결합된 타이어를 회전시켜 자동차를 구동시키게 되는 것이다.The vehicle as described above is to drive the vehicle by rotating the tire coupled thereto by transmitting the power generated from the engine to the drive shaft through the power transmission device.

여기서, 상기한 엔진은 폭발력을 회전 운동으로 변환시켜 자동차를 구동시키게 되는 바, 상기한 엔진은 흡입, 압축, 폭발, 배기 행정을 1사이클로 하는 운동을 통하여 폭발력을 발생시키게 되고 상기한 행정의 연속 동작을 위하여 엔진에는 흡, 배기 장치, 연료 공급 장치, 냉각 장치, 윤활 장치등이 필요하게 된다.In this case, the engine converts the explosive force into a rotational motion to drive the car. The engine generates explosive power through a movement of one cycle of suction, compression, explosion, and exhaust stroke, and the continuous operation of the stroke. For this purpose, the engine requires an intake and exhaust device, a fuel supply device, a cooling device, and a lubrication device.

상기한 흡, 배기 장치는 연소실에 공기 및 연료를 공급함과 아울러 연소실의 1사이클을 실질적으로 제어하게 되는 바, 이는 연소실의 상부에 설치된 흡, 배기 밸브가 개폐되면서 이루어진다.The intake and exhaust devices supply air and fuel to the combustion chamber and substantially control one cycle of the combustion chamber. This is achieved by opening and closing the intake and exhaust valves provided at the upper portion of the combustion chamber.

여기서, 상기한 흡, 배기 밸브는 밸브 개폐 장치에 의해 동작되는 바, 이는 제2도에 도시된 바와 같이 실린더 헤드(H)에 설치된 흡, 배기 밸브(V)와, 상기한 흡, 배기 밸브(V)의 상단에 연결됨과 아울러 로커 아암 샤프트(RS)를 중심으로 회전 운동하는 로커 아암(R)과, 상기한 로커 아암(R)의 일단이 밀착됨과 아울러 다수의 캠(C)이 형성되어 회전되는 캠 샤프트(CS)로 구성되어 있다.Here, the intake and exhaust valves are operated by a valve opening and closing device, as shown in FIG. 2, which is the intake and exhaust valves V installed in the cylinder head H, and the intake and exhaust valves ( It is connected to the upper end of V) and the rocker arm R which rotates about the rocker arm shaft RS and one end of the rocker arm R are in close contact with each other, and a plurality of cams C are formed and rotated. It consists of the camshaft CS which becomes.

상기한 밸브 개폐 장치는 크랭크 샤프트와 벨트로 연결되어 회전되는 캠 샤프트(CS)가 회전되면서 상기한 캠(C)과 밀착되어 있는 로커 아암(R)을 회전 운동시키게 된다.The valve opening and closing device rotates the rocker arm R in close contact with the cam C while the cam shaft CS, which is connected to the crankshaft and the belt, is rotated.

로커 아암(R)이 회전 운동하게 되면 이와 연결되어 있는 흡, 배기 밸브(V)가 왕복 운동하게 됨으로써 흡, 배기 포트(미도시)를 개폐시키게 되는 것이다.When the rocker arm R rotates, the intake and exhaust valves V connected thereto are reciprocated to open and close the intake and exhaust ports (not shown).

여기서, 상기한 밸브 개폐 장치는 흡, 배기 밸브(V)를 통해 엔진 오일이 연소실로 유입되는 것을 차단하도록 구성되는 바, 이는 제3도에 도시된 바와 같이 흡, 배기 밸브(V)가 관통되어 있을 뿐만 아니라 실린더 헤드(H)에 삽입 고정되는 밸브 가이드(50)와, 상기한 밸브 가이드(50)가 삽입됨과 아울러 흡, 배기 밸브(V)가 관통하게 되고 테프론등으로 형성된 스템 실(51)과, 상기한 스템 실(51)의 외주를 압착하여 스템 실(51)과 흡, 배기 밸브(V)를 밀착시키게 되는 스프링(52)으로 구성되어 있다.Here, the valve opening and closing device is configured to block the engine oil from entering the combustion chamber through the intake and exhaust valves V, which is shown in FIG. In addition to the valve guide 50 inserted into and fixed to the cylinder head H, the valve guide 50 is inserted, and the inlet and exhaust valves V pass through and the stem seal 51 formed of Teflon or the like. And a spring 52 for crimping the outer circumference of the stem seal 51 and bringing the stem seal 51 and the intake and exhaust valves V into close contact with each other.

특히, 상기한 흡, 배기 밸브(V)에는 홈 형상인 립(53)이 형성되어 흡, 배기 밸브(V)와 스템 실(51)의 사이로 유입되는 오일을 포집하여 차단하게 된다.In particular, a groove lip 53 is formed in the intake and exhaust valve V to collect and block oil flowing between the intake and exhaust valve V and the stem seal 51.

즉, 상기한 스템 실(51)이 흡, 배기 밸브(V)를 압박하고 있기 때문에 이를 통해 로커암 내부의 오일이 연소실로 유입되는 것을 방지하게 되는 것이다.That is, since the stem seal 51 presses the intake and exhaust valves V, the oil inside the rocker arm is prevented from flowing into the combustion chamber through the stem seal 51.

그러나, 상기한 바와 같이 스템 실과 흡, 배기 밸브를 스프링으로 압착시킴과 아울러 립을 형성하여 오일의 유입을 차단하게 됨은 상기한 스프링의 탄성 변화와 스템 실의 마모등으로 인해 오일 차단 효과가 낮은 문제점이 있다.However, as described above, the stem seal and the intake / exhaust valve are compressed with a spring, and a lip is formed to block the inflow of oil. The oil blocking effect is low due to the elastic change of the spring and the wear of the stem seal. There is this.

따라서, 본 고안의 목적은 상기한 문제점을 해결하기 위한 것으로서, 밸브 개폐 기구를 통한 오일의 연소실 유입을 차단할 수 있는 자동차용 밸브 개폐 기구의 시일 구조를 제공함에 있다.Accordingly, an object of the present invention is to solve the above problems, to provide a seal structure of the valve opening and closing mechanism for automobiles that can block the inflow of the combustion chamber of oil through the valve opening and closing mechanism.

상기한 목적을 실현하기 위하여 본 고안은 밸브에 다수의 립이 형성되어 있고, 상기한 립에 대응되도록 다수의 스프링이 스템 실의 외주에 결합되어 있도록 구성함을 특징으로 한다.In order to realize the above object, the present invention is characterized in that a plurality of ribs are formed in the valve, and a plurality of springs are coupled to the outer circumference of the stem seal so as to correspond to the above-mentioned lip.

이하, 첨부 도면을 참조하여 본 고안의 상세한 일 실시예를 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, a detailed embodiment of the present invention will be described.

제1도는 본 고안에 따른 자동차용 밸브 개폐 기구의 시일 구조를 도시한 부분 확대 단면도로서, 밸브(V)에 다수의 립(1, 2, 3)이 형성되어 있고, 상기한 립(1, 2, 3)에 대응되도록 다수의 스프링(4, 5, 6)이 스템 실(51)의 외주에 결합되어 있다.1 is a partial enlarged cross-sectional view showing a seal structure of an automobile valve opening and closing mechanism according to the present invention, wherein a plurality of ribs 1, 2, and 3 are formed in the valve V, and the above-described ribs 1 and 2 are shown. 3, a plurality of springs 4, 5, 6 are coupled to the outer circumference of the stem seal 51.

즉, 밸브(V)와 스템 실(51) 사이의 밀폐 수단을 단계적으로 다수 형성하여 밀폐 효과를 향상시키도록 한 것이다.That is, a plurality of sealing means are formed step by step between the valve V and the stem seal 51 to improve the sealing effect.

상기한 바와 같은 본 고안의 작용 효과를 설명하면 작업자가 스템 실(51)의 내부에 밸브 가이드(50)를 삽입시킨다.When explaining the operation and effect of the present invention as described above, the operator inserts the valve guide 50 in the interior of the stem seal (51).

밸브 가이드(50)가 스템 실(51)에 삽입되면 상기한 밸브 가이드(50)에 삽입되어 있는 밸브(V)가 스템 실(51)과 밀착되는 바, 상기한 밸브(V)에 형성된 다수의 립(1, 2, 3)이 이를 통한 오일의 누출을 차단하게 되는 것이다.When the valve guide 50 is inserted into the stem seal 51, the valve V inserted into the valve guide 50 comes into close contact with the stem seal 51. Lips (1, 2, 3) is to block the leakage of oil through it.

특히, 상기한 스템 실(51)의 외주에 결합된 다수의 스프링(4, 5, 6)이 스템 실(51)과 밸브(V)를 압박하게 됨으로써 립(1, 2, 3)을 통한 오일 누출 방지 효과가 보다 향상되는 것이다.In particular, the plurality of springs 4, 5, 6 coupled to the outer circumference of the stem seal 51 presses the stem seal 51 and the valve V so that the oil through the lips 1, 2, 3 is increased. The leak prevention effect is further improved.

즉, 상기한 밸브(V)에 다수의 립(1, 2, 3)이 단계적으로 오일을 포집하게 됨으로써 상기한 밸브(V)와 스템 실(51) 사이를 통한 오일이 립(1, 2, 3)에서 포집되어 외부로 누출되지 않게 된다.That is, the plurality of ribs 1, 2, and 3 are gradually collected in the valve V so that the oil through the valve V and the stem seal 51 is separated into the ribs 1, 2, and the like. It is collected in 3) and does not leak to the outside.

이상과 같이 본 고안은 스템 실과 밸브의 사이에 다수의 립을 형성함과 아울러 이를 스템 실의 외부에 결합된 스프링으로 압박함으로써 밀폐 효과가 향상되는 잇점이 잇는 것이다.As described above, the present invention has the advantage that the sealing effect is improved by forming a plurality of ribs between the stem seal and the valve and by pressing them with a spring coupled to the outside of the stem seal.

Claims (1)

밸브(V)에 다수의 립(1, 2, 3)이 형성되어 있고, 상기한 립(1, 2, 3)에 대응되도록 다수의 스프링(4, 5, 6)이 스템 실(51)의 외주에 결합되어 있음을 특징으로 하는 자동차용 밸브 개폐 장치의 시일 구조.A plurality of ribs 1, 2, 3 are formed in the valve V, and a plurality of springs 4, 5, 6 are formed in the stem seal 51 so as to correspond to the lips 1, 2, 3 described above. Seal structure of the valve opening and closing device for automobiles, characterized in that coupled to the outer circumference.
KR2019950047329U 1995-12-26 1995-12-26 Seal structure of valve open-close device KR200155760Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019950047329U KR200155760Y1 (en) 1995-12-26 1995-12-26 Seal structure of valve open-close device

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Application Number Priority Date Filing Date Title
KR2019950047329U KR200155760Y1 (en) 1995-12-26 1995-12-26 Seal structure of valve open-close device

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KR970039993U KR970039993U (en) 1997-07-29
KR200155760Y1 true KR200155760Y1 (en) 1999-09-01

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