KR0130939Y1 - Seal structure of valve stem - Google Patents
Seal structure of valve stem Download PDFInfo
- Publication number
- KR0130939Y1 KR0130939Y1 KR2019960033721U KR19960033721U KR0130939Y1 KR 0130939 Y1 KR0130939 Y1 KR 0130939Y1 KR 2019960033721 U KR2019960033721 U KR 2019960033721U KR 19960033721 U KR19960033721 U KR 19960033721U KR 0130939 Y1 KR0130939 Y1 KR 0130939Y1
- Authority
- KR
- South Korea
- Prior art keywords
- valve stem
- close contact
- seal structure
- steel sheet
- sheet member
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-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
- F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
본 고안의 목적은 오일시일이 밸브 스템 가이드부에 항상 안정적으로 밀착지지되도록 하므로써 오일의 유입을 차단하는 밸브 스템의 시일구조를 제공하는데 있다.An object of the present invention is to provide a seal structure of the valve stem to block the inflow of oil by ensuring that the oil seal is always stably in close contact with the valve stem guide portion.
상기한 목적을 달성하기 위한 본 고안의 수단은Means of the present invention for achieving the above object
메인립(4)은 밸브 스템(1) 외주면에 밀착되며 고무장착부(5)는 밸브 스템 가이드(2)의 외표면에 밀착하여 지지되는 밸브 스템 시일구조에 있어서,In the valve stem seal structure in which the main lip 4 is in close contact with the outer circumferential surface of the valve stem 1 and the rubber mounting portion 5 is in close contact with the outer surface of the valve stem guide 2,
상기 고무장착부(5)는 내부철판부재(6)와 외부철판부재(7)에 의한 조임장착력에 의해 상기 밸브 스템 가이드(2)의 외표면에 밀착하되, 상기 내·외부 철판부재(6)(7) 사이에는 고무탄성체(8)가 개재되어 상기 내부철판부재(6)를 항상 밸브 스템 가이드(2)쪽으로 가압하게 되는 것임을 특징으로 한다.The rubber mounting portion 5 is in close contact with the outer surface of the valve stem guide 2 by the tightening mounting force of the inner steel sheet member 6 and the outer steel sheet member 7, the inner and outer steel sheet member 6 A rubber elastic body 8 is interposed between the parts 7 to press the inner steel plate member 6 toward the valve stem guide 2.
Description
본 고안은 밸브 스템부의 오일누설 방지를 위한 시일구조 개선에 관한 것이다.The present invention relates to an improved seal structure for preventing oil leakage of the valve stem portion.
밸브 스템 가이드는 일반적으로 주철제의 원통체로서 실린더 헤드에 압입되어 밸브의 밀착을 좋게 하기 위한 안내를 하고 있다.The valve stem guide is generally a cast iron cylindrical body which is pressed into the cylinder head to guide the valve to be in close contact.
이에따라 밸브 스템 가이드와 밸브 스템 사이에는 원활한 슬라이딩 접촉을 위한 최소한의 틈새가 형성되기 때문에 도 2 에 도시하는 것과같이 밸브 스템 가이드(11)와 밸브 스템(22)의 틈새를 통해 엔진오일이 과도하게 연소실로 침입하는 것을 방지하기 위하여 통상 밸브 스템(12)에 고무재의 오일시일(13)을 장치하고 있다.As a result, a minimum clearance is formed between the valve stem guide and the valve stem for smooth sliding contact, so that the engine oil is excessively burned through the clearance between the valve stem guide 11 and the valve stem 22 as shown in FIG. 2. In order to prevent the invasion into the water, a rubber oil seal 13 is usually attached to the valve stem 12.
상기한 오일시일(13)은 밸브 스템 가이드(11)에 고정 장착되어지게 되는데 이를위해 바깥부위를 철판(14)으로 감싸 철판(14)의 조임탄성력에 의해 오일시일(13)의 고무장착부(15)가 항상 밸브 스템 가이드(11)에 밀착지지되어지도록 하고 있다.The oil seal 13 is fixed to the valve stem guide 11. To this end, the rubber part 15 of the oil seal 13 is wrapped around the outer portion by the iron plate 14 by the tightening elasticity of the iron plate 14. ) Is always held in close contact with the valve stem guide 11.
그러나 상기한 구조는 철판(14)의 조임력 상실시 고무장착부(15)와 밸브스템가이드(11)사이에 틈새가 형성되므로써 오일이 연소실로 침임하여 오일의 과도한 소모를 가져오고 배기가스를 악화시키게 되는 일이 종종 발생하게 된다.However, the above structure has a gap formed between the tightening force loss rubber mounting portion 15 and the valve stem guide 11 of the iron plate 14, so that the oil is infiltrated into the combustion chamber, leading to excessive consumption of oil and worsening the exhaust gas. It often happens.
이에 본 고안은 상기한 문제점을 감안하여 제안된 것으로서 그의 목적으로 하는바는 오일시일이 밸브 스템 가이드부에 항상 안정적으로 밀착지지되도록 하므로써 오일의 유입을 차단하는 밸브 스템의 시일구조를 제공하는데 있다.Accordingly, the present invention has been proposed in view of the above problems, and an object thereof is to provide a seal structure of a valve stem that blocks oil inflow by allowing the oil seal to be stably adhered to the valve stem guide part at all times.
상기한 목적을 달성하기 위한 본 고안의 수단은Means of the present invention for achieving the above object
메인립은 밸브 스템 외주면에 밀착되며 고무장착부는 밸브 스템 가이드의 외표면에 밀착하여 지지되는 밸브 스템 시일구조에 있어서,In the valve stem seal structure in which the main lip is in close contact with the outer circumferential surface of the valve stem and the rubber mounting part is in close contact with the outer surface of the valve stem guide.
상기 고무장착부는 내부철판부재와 외부철판부재에 의한 조임장착력에 의해 상기 밸브 스템 가이드의 외표면에 밀착하되, 상기 내·외부 철판부재 사이에는 고무탄성체가 개재되어 상기 내부철판부재를 항상 밸브 스템 가이드쪽으로 가압하게 되는 것임을 특징으로 한다.The rubber mounting portion is in close contact with the outer surface of the valve stem guide by the tightening mounting force of the inner steel sheet member and the outer steel sheet member, a rubber elastic body is interposed between the inner and outer steel sheet member to always keep the inner steel sheet member valve stem It is characterized in that the pressing toward the guide.
도 1 은 본 고안에 의한 밸브 스템 시일구조를 나타내는 도면1 is a view showing a valve stem seal structure according to the present invention
도 2 는 종래기술2 is a prior art
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 밸브 스템 2 : 밸브 스템 가이드1: Valve stem 2: Valve stem guide
3 : 오일시일부재 4 : 메인립3: oil seal member 4: main lip
5 : 고무장착부 6 : 내부철판부재5: Rubber mounting part 6: Internal steel plate member
7 : 외부철판부재 8 : 고무탄성체7: outer steel plate member 8: rubber elastic body
9 : 코일스프링9: coil spring
이하 본 고안의 구성과 작용을 첨부한 도면을 참조하여 설명한다.Hereinafter, with reference to the accompanying drawings the configuration and operation of the present invention.
도 1 은 본 고안에 의한 밸브 스템 시일구조를 나타내는 도면으로 도면에 있어서 부호 1은 밸브 스템이며 부호 2는 밸브 스템을 안내하는 밸브 스템 가이드이다.1 is a view showing a valve stem seal structure according to the present invention, in which 1 is a valve stem and 2 is a valve stem guide for guiding the valve stem.
오일시일부재(3)는 밸브 스템(1)의 외표면에 밀착하여 오일의 침입을 차단하는 메인립(4)과 밸브 스템 가이드(2)의 외표면에 밀착지지하는 고무장착부(5)가 일체로 형성되며 고무장착부(5)는 링형상의 내부철판부재(6)와 외부철판부재(7)의 조임장착력에 의해 항상 밸브 스템 가이드(2) 표면에 긴밀하게 밀착되어지게 되며 내·외부 철판부재(6)(7) 사이에는 고무탄성체(8)가 압축되어 탄성을 발하므로써 상기 내부철판부재(6)를 가압하도록 개재되어 있다.The oil seal member 3 is integrally attached to the outer surface of the valve stem 1 so that the main lip 4 for blocking oil intrusion and the rubber mounting portion 5 for tightly supporting the outer surface of the valve stem guide 2 are integrated. The rubber mounting portion 5 is always in close contact with the surface of the valve stem guide 2 by the tightening force of the ring-shaped inner steel plate member 6 and the outer steel plate member 7. The rubber elastic body 8 is interposed between the members 6 and 7 so as to pressurize the inner steel plate member 6 by exerting elasticity.
또한 고무탄성체(8)의 양측으로는 코일스프링(9)이 내부철판부재(6)를 탄력적으로 감싸고 있다.In addition, the coil spring 9 elastically surrounds the inner steel plate member 6 on both sides of the rubber elastic body 8.
이에따라 코일스프링(9) 및 고무탄성체(8)에 의한 가압력으로 내부철판부재(6)를 항시 밸브 스템 가이드(2)쪽으로 밀어 안정적으로 밀착되어지게 된다.Accordingly, the inner steel plate member 6 is always pushed toward the valve stem guide 2 by the pressing force by the coil spring 9 and the rubber elastic body 8 to be in close contact with each other.
이상과 같은 본 고안에 의한 밸브 스템 시일구조에 의하면According to the valve stem seal structure according to the present invention as described above
밸브 스템 가이드에 장착 지지되는 시일부재의 고무장착부가 내외부 철판부재 및 그 사이에 개재된 고무탄성체와 코일스프링의 가압력으로 항상 안정적으로 밸브스템가이드의 외표면에 밀착되므로써 시일성이 향상되어 오일의 연소실로의 침입이 방지되어 오일소모량이 감소되고 배기가스를 악화시키지 않게 되는 효과가 있다.The rubber mounting part of the seal member mounted on the valve stem guide is always stably adhered to the outer surface of the valve stem guide by the pressing force between the inner and outer steel plate members, the rubber elastic body interposed therebetween, and the coil spring, so that the sealability is improved and the oil combustion chamber The intrusion into the furnace is prevented, so the oil consumption is reduced and the exhaust gas is not worsened.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960033721U KR0130939Y1 (en) | 1996-10-14 | 1996-10-14 | Seal structure of valve stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960033721U KR0130939Y1 (en) | 1996-10-14 | 1996-10-14 | Seal structure of valve stem |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980020490U KR19980020490U (en) | 1998-07-15 |
| KR0130939Y1 true KR0130939Y1 (en) | 1999-10-01 |
Family
ID=19469593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960033721U KR0130939Y1 (en) | 1996-10-14 | 1996-10-14 | Seal structure of valve stem |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0130939Y1 (en) |
-
1996
- 1996-10-14 KR KR2019960033721U patent/KR0130939Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980020490U (en) | 1998-07-15 |
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| E701 | Decision to grant or registration of patent right | ||
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