KR19980028704U - Auxiliary spring of valve spring - Google Patents
Auxiliary spring of valve spring Download PDFInfo
- Publication number
- KR19980028704U KR19980028704U KR2019960041734U KR19960041734U KR19980028704U KR 19980028704 U KR19980028704 U KR 19980028704U KR 2019960041734 U KR2019960041734 U KR 2019960041734U KR 19960041734 U KR19960041734 U KR 19960041734U KR 19980028704 U KR19980028704 U KR 19980028704U
- Authority
- KR
- South Korea
- Prior art keywords
- spring
- valve
- auxiliary
- coil spring
- supported
- Prior art date
Links
- 230000006835 compression Effects 0.000 claims abstract 2
- 238000007906 compression Methods 0.000 claims abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
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
- F01L3/10—Connecting springs to valve members
-
- 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
- F01L2810/00—Arrangements solving specific problems in relation with valve gears
Abstract
본 고안은 자동차 기관(engine)의 연소실을 개폐하는 밸브스프링의 구조에 관한 것으로, 밸브스프링의 장착하중이 낮아지도록 하여 기관의 마찰손실이 저감되도록 하기 위해, 밸브의 일단부를 지지하는 어퍼시트(20)에 코일스프링(21)의 상단부가 탄지되고, 상기 코일스프링의 하단부가 실린더헤드에 탄지되는 것에 있어서, 상기 어퍼시트의 외곽부에 동심원주상으로 일정높이 이상에서 인장력을 갖고 일정높이 이하에서 압축력을 갖는 보조스프링(22)들의 일단부가 지지되고, 상기 보조스프링(22)의 타단부가 실린더헤드측벽(30)에 탄지되도록 구성하여, 코일스프링(21)의 장착시 보조스프링(22)에 인장력이 작용되어 장착하중이 줄어들도록 하고, 코일스프링(21)이 장착된 상태에서 기관의 작동으로 코일스프링(21)이 압축되면 보조스프링(22)도 압축되게 되어 반발력이 상승되도록 하는 밸브스프링의 보조스프링이다.The present invention relates to a structure of a valve spring for opening and closing the combustion chamber of an automobile engine, the upper seat 20 for supporting one end of the valve in order to reduce the friction loss of the engine to lower the mounting load of the valve spring ), The upper end of the coil spring 21 is supported, and the lower end of the coil spring is supported by the cylinder head, wherein the outer portion of the upper seat has a tensile force at a predetermined height or more in a concentric circumference and a compression force below a predetermined height. One end of the auxiliary springs 22 having the support is configured, and the other end of the auxiliary spring 22 is supported by the cylinder head side wall 30 so that the tension force is applied to the auxiliary spring 22 when the coil spring 21 is mounted. When the coil spring 21 is compressed by the operation of the engine while the coil spring 21 is mounted, the auxiliary spring 22 is also compressed. It is an auxiliary spring of the valve spring to increase the repulsive force.
Description
일반적으로 기관은 흡기구와 배기구가 연소실과 연통되게 형성되는 실린더헤드가 피스톤이 장착되는 실린더 상부에 장치되어, 실린더헤드의 연소실에 흡기구와 배기구를 각기 일정 주기로 개폐하여 주는 밸브가 코일스프링에 상향으로 탄지되고, 캠축의 캠에 의해 작동되는 로커아암에 조작 가능하게 밀착되어 있다.In general, the engine is provided with a cylinder head in which an inlet and an exhaust port communicate with a combustion chamber is mounted on the upper cylinder, and a valve that opens and closes the inlet and exhaust ports at a predetermined cycle in the combustion chamber of the cylinder head is upwardly supported on the coil spring. It is in close contact with the rocker arm operated by the cam of the camshaft.
이와같이 구성되는 기관은 연소실에서 연소에 의해 발생되는 동력이 피스톤을 구동하고, 피스톤에 의해 크랭크축이 구동되어 회전력을 얻게 되며, 크랭크축에 의해 구동되는 캠축이 로커아암을 통해 밸브를 구동하여, 일정 주기로 밸브가 연소실로 연통되는 흡기구와 배기구를 개폐하여 주므로, 새로운 혼합기를 흡입하고 연소된 가스가 배기되도록 한다.In the engine configured as described above, the power generated by the combustion in the combustion chamber drives the piston, the crankshaft is driven by the piston to obtain rotational force, and the camshaft driven by the crankshaft drives the valve through the rocker arm, Since the valve opens and closes the inlet and exhaust ports communicating with the combustion chamber, the new mixer is sucked in and the burned gas is exhausted.
여기에서, 종래 밸브가 탄지되는 코일스프링의 취부구조는 도 1에 도시되는 바와 같이, 밸브의 일단부를 지지하는 어퍼시트(upper seat)(20)에 코일스프링(21)의 상단부가 탄지되고, 코일스프링(21)의 하단부가 실린더헤드(10)에 소정의 탄발력을 가지고 압축된 상태로 탄지되어 있다.Here, in the conventional mounting structure of the coil spring in which the valve is supported, as shown in FIG. 1, the upper end of the coil spring 21 is supported by an upper seat 20 supporting one end of the valve, and the coil The lower end of the spring 21 is supported by the cylinder head 10 in a compressed state with a predetermined elasticity.
이러한 종래 밸브 스프링의 취부구조는, 코일스프링(21)이 실린더헤드(10)와 어퍼시트(20) 사이에 압축된 상태로 장착되며, 밸브의 개폐작동시 최대속도에서 밸브와 캠의 접촉을 유지하도록 하기 위해 최대 변위시 600N 내외의 반발력을 갖도록 설계된다. 한편, 코일스프링(21)의 코일 특성상 장착하중이 250N 내외가 될 수 밖에 없게 되는데, 실제 필요한 장착하중은 100N 내지 150N 정도이기 때문에, 장착하중이 커서 기관의 마찰손실이 크게 되는 문제점이 있었다.In this conventional valve spring mounting structure, the coil spring 21 is mounted in a compressed state between the cylinder head 10 and the upper seat 20, and maintains contact between the valve and the cam at the maximum speed during the opening and closing operation of the valve. It is designed to have a repulsive force of around 600N at maximum displacement. On the other hand, due to the coil characteristics of the coil spring 21, the mounting load is bound to be about 250N, but since the required mounting load is about 100N to 150N, there was a problem that the frictional loss of the engine is large because the mounting load is large.
본 고안은 일정높이 이상에서 인장력이 작용하도록 하는 인장스프링을 부가하여, 밸브스프링의 장착시 탄발력을 억제시켜 장착하중이 저감되도록 하고, 기관의 마찰손실이 저감되도록 하는 데 그 목적이 있다.The object of the present invention is to add a tension spring to act over a certain height, to suppress the elastic force during the installation of the valve spring to reduce the mounting load, and to reduce the friction loss of the engine.
도 1은 종래 밸브프링의 취부구조를 나타내는 단면도1 is a cross-sectional view showing a mounting structure of a conventional valve spring
도 2는 본 고안 밸브프링의 취부구조를 나타내는 단면도Figure 2 is a cross-sectional view showing the mounting structure of the present invention valve spring
도 3은 본 고안 밸브프링의 취부구조를 나타내는 평면도3 is a plan view showing the mounting structure of the valve spring of the present invention
*도면중 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
10 : 실린더헤드20 : 어퍼시트10: cylinder head 20: upper seat
21 : 코일스프링22 : 보조스프링21: coil spring 22: auxiliary spring
먼저, 본 고안도 도 2와 도 3에 도시되는 바와 같이, 밸브의 일단부를 지지하는 어퍼시트(upper seat)(20)에 코일스프링(21)의 상단부가 탄지되고, 코일스프링(21)의 하단부가 실린더헤드(10)에 소정의 탄발력을 가지고 압축된 상태로 탄지된다.First, as shown in FIGS. 2 and 3 of the present invention, the upper end of the coil spring 21 is supported by an upper seat 20 that supports one end of the valve, and the lower end of the coil spring 21. Is compressed to the cylinder head 10 in a compressed state with a predetermined elasticity.
단, 본 고안은 어퍼시트(20)의 외곽부에 동심원주상으로 일정높이 이상에서 인장력을 갖고 일정높이 이하에서 압축력을 갖는 보조스프링(22)들의 일단부가 지지되고, 보조스프링(22)의 타단부가 기관의 실린더헤드측벽(30)에 탄지됨을 그 기술적 구성상의 기본 특징으로 한다.However, the present invention has one end of the auxiliary springs 22 having a concentric circumference at a predetermined height or more and a compressive force below a predetermined height on the outer portion of the upper seat 20, and the other end of the auxiliary spring 22. It is a basic feature of the technical configuration that the engine is supported on the cylinder head side wall (30).
이와 같이 구성되는 본 고안은, 코일스프링(21)의 장착시 코일스프링(21)이 완전히 팽창된 상태이므로 보조스프링(22)에 인장력이 작용되어 코일스프링(21)의 장착하중이 줄어들도록 하고, 코일스프링(21)이 장착된 상태에서 기관의 작동으로 코일스프링(21)이 압축되면 보조스프링(22)도 압축되게 되어 반발력이 상승되도록 한다.The present invention constituted as described above, since the coil spring 21 is completely inflated when the coil spring 21 is mounted, a tensile force is applied to the auxiliary spring 22 to reduce the mounting load of the coil spring 21, When the coil spring 21 is compressed by the operation of the engine in the state in which the coil spring 21 is mounted, the auxiliary spring 22 is also compressed to increase the repulsive force.
이러한 본 고안은 동일한 성능의 최대하중에 비해 장착하중이 낮아지므로 기관의 마찰손실이 저감되도록 하고, 출력 및 연비가 향상되도록 한다.This invention is designed to reduce the frictional loss of the engine, and to improve the output and fuel economy because the mounting load is lower than the maximum load of the same performance.
상기와 같이 구성되고 작동되는 본 고안은, 일정높이를 기준으로 인장력과 압축력을 갖는 보조스프링이 부가되어, 밸브스프링의 장착시 탄발력을 억제시켜 장착하중이 저감되도록 하고, 기관의 마찰손실이 저감되도록 하는 효과를 갖는다.The present invention is constructed and operated as described above, the auxiliary spring having a tensile force and a compressive force is added based on a certain height, to suppress the elastic force during the installation of the valve spring to reduce the mounting load, the engine friction loss is reduced It has an effect to make.
본 고안은 자동차 기관(engine)의 연소실을 개폐하는 밸브스프링의 구조에 관한 것으로, 인장력이 작용되도록 하는 보조스프링을 부가하여 밸브스프링의 장착하중이 낮아지도록 하므로 기관의 마찰손실이 저감되도록 하는 데 그 목적이 있다.The present invention relates to a structure of a valve spring that opens and closes a combustion chamber of an automobile engine, and adds an auxiliary spring for exerting a tensile force to lower the mounting load of the valve spring, thereby reducing the frictional loss of the engine. There is a purpose.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960041734U KR19980028704U (en) | 1996-11-25 | 1996-11-25 | Auxiliary spring of valve spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960041734U KR19980028704U (en) | 1996-11-25 | 1996-11-25 | Auxiliary spring of valve spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980028704U true KR19980028704U (en) | 1998-08-05 |
Family
ID=53984452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960041734U KR19980028704U (en) | 1996-11-25 | 1996-11-25 | Auxiliary spring of valve spring |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19980028704U (en) |
-
1996
- 1996-11-25 KR KR2019960041734U patent/KR19980028704U/en not_active Application Discontinuation
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