KR19980025825U - Intake and exhaust valve of the engine - Google Patents
Intake and exhaust valve of the engine Download PDFInfo
- Publication number
- KR19980025825U KR19980025825U KR2019960038660U KR19960038660U KR19980025825U KR 19980025825 U KR19980025825 U KR 19980025825U KR 2019960038660 U KR2019960038660 U KR 2019960038660U KR 19960038660 U KR19960038660 U KR 19960038660U KR 19980025825 U KR19980025825 U KR 19980025825U
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- KR
- South Korea
- Prior art keywords
- valve
- intake
- exhaust
- engine
- valve stem
- Prior art date
Links
- 238000012856 packing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 7
- 239000000567 combustion gas Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Classifications
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- 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
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- 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
- F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
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- 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
- F01L2303/00—Manufacturing of components used in valve arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
본 고안은 자동차 엔진의 흡배기 밸브에 관한 것으로서, 끝단이 반구형상의 구면으로 형성되고 상기 구면의 중심에서 돌출되어 암나사가 형성된 밸브스템과, 상기 밸브스템의 암나사에 끼워지는 관통공이 형성되고 상기 관통공의 상부는 상기 밸브스템의 구면에 형합되도록 확장되어 밸브시이트와 접촉시 미세하게 회동가능토록 설치된 밸브헤드, 상기 밸브스템의 암나사에 체결되는 너트로 구성된 것을 특징으로 한다.The present invention relates to an intake / exhaust valve of an automobile engine, the end of which is formed as a hemispherical spherical surface and protrudes from the center of the spherical valve stem formed with a female thread, and a through-hole fitted to the female screw of the valve stem is formed The upper part is characterized by consisting of a valve head which is extended so as to be fitted to the spherical surface of the valve stem is installed so as to be finely rotated in contact with the valve seat, the nut is fastened to the female screw of the valve stem.
상기 본 고안의 엔진의 흡배기 밸브는 밸브스템에 고정된 밸브헤드가 미세하게 움직이기 때문에 밸브시이트 및 밸브헤드 사이에 약간의 가공 오차나 마모 등에 의해 틈새가 발생해도 밸브헤드의 밸브스페이스가 정확하게 밸브시이트에 밀착하여 연소실을 완전히 밀봉할 수 있는 효과가 있다.In the intake and exhaust valve of the engine of the present invention, the valve head fixed to the valve stem moves finely, so that the valve seat of the valve head can be accurately positioned even if a gap occurs due to some processing error or wear between the valve seat and the valve head. In close contact there is an effect that can completely seal the combustion chamber.
Description
제1도는 일반적인 엔진에 흡배기 밸브가 구성된 도면.1 is a view illustrating an intake and exhaust valve in a general engine.
제2도는 종래의 엔진 흡배기 밸브를 나타낸 도면.2 is a view showing a conventional engine intake and exhaust valve.
제3도는 본 고안에 따른 엔진의 흡배기 밸브를 나타낸 도면.3 is a view showing an intake and exhaust valve of the engine according to the present invention.
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
10:연소실12:피스톤10: combustion chamber 12: piston
14:실린더15:점화플러그14: Cylinder 15: ignition plug
16:흡배기구18:밸브시이트16: Intake and exhaust 18: Valve seat
26:밸브가이드30:흡배기 밸브26: valve guide 30: intake valve
32:밸브스템32a:구면32: valve stem 32a: spherical surface
32b:암나사부34:밸브헤드32b: Female thread part 34: Valve head
34a:밸브스페이스34b:관통공34a: valve space 34b: through hole
38:너트39:패킹38: Nut 39: Packing
본 고안은 자동차 엔진의 연소실에 구성되는 흡배기 밸브에 관한 것으로서, 특히, 밸브의 헤드가 밸브시이트에 접촉할 때 밸브스템에서 미세하게 움직이도록 함으로써 밸브헤드와 밸브시이트 사이의 틈새 및 마모를 방지하도록 한 엔진의 흡배기 밸브에 관한 것이다.The present invention relates to an intake / exhaust valve configured in a combustion chamber of an automobile engine, and in particular, to prevent the gap and wear between the valve head and the valve seat by making the valve head move finely in contact with the valve seat. It relates to an intake and exhaust valve of an engine.
일반적으로, 엔진은 제1도에 도시된 바와 같이 동력행정에 필요한 혼합가스를 연소실(10) 안으로 흡입하고 흡입된 혼합가스를 피스톤(12)이 압축하여 점화플러그(15)의 순간점화로 팽창행정이 발생하며 이후 연소가스를 외부로 배출한다. 상기 혼합가스와 연소가스를 흡입, 배출하기 위해 1개의 실린더(14)에 흡기밸브(20)와 배기밸브(20)를 설치한다.In general, the engine sucks the mixed gas necessary for power stroke into the combustion chamber 10, as shown in FIG. 1, and the piston 12 compresses the sucked mixed gas to expand the stroke of the ignition plug 15. This occurs and then discharges the combustion gases to the outside. Intake valve 20 and exhaust valve 20 are installed in one cylinder 14 to suck and discharge the mixed gas and combustion gas.
상기 엔진의 흡배기 밸브(20)는 피스턴(12)이 1 사이클을 작동하는 극히 짧은 시간에 쉽게 흡기 및 배기를 하여 체적효율을 높이고, 상기 두 밸브(20)가 닫혀 있는 압축 및 동력 행정에서 충분한 기밀을 유지하고, 또한 연소가스의 고온에 노출되어도 정확히 작동하고, 장시간 운전에 견디는 등의 조건에 충족해야 한다.The intake and exhaust valve 20 of the engine easily intakes and exhausts in an extremely short time when the piston 12 operates one cycle, thereby increasing volumetric efficiency, and sufficient airtightness in the compression and power stroke in which the two valves 20 are closed. Must be maintained, and it must operate correctly even when exposed to the high temperature of the combustion gas, and withstand such conditions as long time operation.
종래 엔진의 흡배기 밸브는 제2도에 도시된 바와 같이 연소실(10)의 밸브시이트(18)에 접촉하여 흡배기구(16)를 개폐하는 나팔모양의 밸브헤드(24)와, 상기 밸브헤드(24)의 중심에서 연결되어 밸브헤드(24)를 직선 운동시키는 밸브스템(22)으로 구성되어 있다.The intake / exhaust valve of the conventional engine has a trumpet-shaped valve head 24 which opens and closes the intake / exhaust mechanism 16 by contacting the valve seat 18 of the combustion chamber 10, as shown in FIG. It is composed of a valve stem 22 that is connected at the center of the) to linearly move the valve head (24).
상기와 같이 구성된 종래 엔진의 흡배기 밸브는 연소실(10)의 흡배기구(16)에 각각 설치되어 있다. 연소가스통로와 배기가스통로 중에 설치된 밸브가이드(26)에 상기 밸브스템(22)이 삽입되어 직선운동을 하고, 흡배기구(16)에 형성된 밸브시이트(18) 내측에 상기 밸브헤드(24)가 위치한다.The intake and exhaust valves of the conventional engine configured as described above are provided in the intake and exhaust ports 16 of the combustion chamber 10, respectively. The valve stem 22 is inserted into the valve guide 26 installed in the combustion gas passage and the exhaust gas passage to perform a linear movement, and the valve head 24 is formed inside the valve seat 18 formed on the intake and exhaust mechanism 16. Located.
즉, 제1도 및 제2도에서 상기 흡기밸브(20)는 흡기구(16a)에 위치하여 상기 밸브스템(22)의 직선운동에 의해 밸브시이트(18)에서 떨어지면서 흡기구(16a)를 열어 연소가스를 흡입하고, 배기밸브(20)는 배기구(16b)에 위치하여 상기 밸브스템(22)의 직선운동에 의해 밸브시이트(18)에 떨어지면서 배기구(16b)를 열어 배기가스를 배출한다. 그리고 동시에 흡기구(16a)와 배기구(16b)의 밸브시이트(18)에 각각의 밸브헤드(24)가 밀착하면서 연소실(10)을 밀봉한다.That is, in FIG. 1 and FIG. 2, the intake valve 20 is positioned at the intake port 16a and is opened from the valve seat 18 by the linear movement of the valve stem 22 to open the intake port 16a for combustion. The gas is sucked in, and the exhaust valve 20 is located at the exhaust port 16b and falls on the valve seat 18 by the linear movement of the valve stem 22 to open the exhaust port 16b to discharge the exhaust gas. At the same time, the combustion chamber 10 is sealed while the valve head 24 is in close contact with the valve seat 18 of the inlet port 16a and the exhaust port 16b.
여기서, 상기 밸브시이트(18)는 상기 밸브헤드(24)의 밸브페이스(24a)와 밀착하여 연소실(10)의 압력이 새는 것을 방지하는 부분으로 완전한 기밀이 유지되고, 밸브헤드(24)의 밸브페이스(24a)와 되풀이 충돌해도 손상되지 않아야 한다.Here, the valve seat 18 is in close contact with the valve face 24a of the valve head 24 to prevent leakage of the pressure in the combustion chamber 10, thereby maintaining complete airtightness, and the valve of the valve head 24. Repeated collisions with face 24a should not damage them.
그러나, 종래 엔진의 흡배기 밸브는 밸브헤드(24)가 밸브스템(22)에 고정되고 밸브가이드(26)를 통해서면 직선운동을 하기 때문에 밸브시이트(18)와 상기 밸브헤드의 밸브페이스(24a) 밀착시 가공오차나 마모 등에 의해 미세한 틈이 발생되는 문제가 있었다.However, in the intake / exhaust valve of a conventional engine, the valve seat 18 and the valve face 24a of the valve head are provided because the valve head 24 is fixed to the valve stem 22 and linearly moves through the valve guide 26. There was a problem in that a fine gap occurs due to a machining error or abrasion during close contact.
따라서, 본 고안은 상기와 같은 종래의 문제점을 해결하기 위하여 안출된 것으로서, 본 고안의 목적은 연소실의 밸브시이트와 밀착할 수 있도록 밸브스템에서 미세하게 움직이는 밸브헤드를 설치함으로써 밸브시이트에 밸브헤드가 정확하게 밀착할 수 있도록 한 엔진의 흡배기 밸브를 제공하는데 있다.Therefore, the present invention is devised to solve the above-mentioned conventional problems, and an object of the present invention is to provide a valve head in the valve seat by installing a valve head moving finely in the valve stem so as to be in close contact with the valve seat of the combustion chamber. It is to provide an intake and exhaust valve of an engine so that it can be closely contacted.
상기의 목적을 실현하기 위한 본 고안에 의한 엔진의 흡배기 밸브는 자동차 엔진의 흡배기 밸브에 있어서, 끝단이 반구형상으로 형성되고 상기 반구형상의 중심부에서 돌출되어 암나사가 형성된 밸브스템과, 상기 밸브스템의 암나사에 끼워질 수 있도록 중앙부에 관통공이 형성되고 상기 관통공 상부는 상기 밸브스템의 반구형상에 형합되게 확장되어 밸브시이트와 접촉시 미세하게 회동하는 밸브헤드와, 상기 밸브헤드를 상기 밸브스템에 고정하기 위하여 상기 밸브스템의 암나사에 체결되는 너트로 구성된 것을 특징으로 한다.The intake and exhaust valve of the engine according to the present invention for achieving the above object is a valve stem in the intake and exhaust valve of the automobile engine, the end is formed in a hemispherical shape and protrudes from the central portion of the hemispherical shape and the female thread of the valve stem, A through hole is formed in the center portion to be fitted into the valve hole, and the upper portion of the through hole extends in conformity with the hemispherical shape of the valve stem to finely rotate the valve head in contact with the valve seat, and to fix the valve head to the valve stem. It characterized in that it consists of a nut which is fastened to the female screw of the valve stem.
이하, 첨부된 도면을 참조하여 본 고안에 의한 엔진의 흡배기 밸브의 실시예를 상세하게 설명하면 다음과 같다.Hereinafter, an embodiment of an intake and exhaust valve of an engine according to the present invention with reference to the accompanying drawings in detail as follows.
본 고안에 의한 엔진의 흡배기 밸브는 제3도에 도시된 바와 같이 밸브스템(32)과 밸브헤드(34)가 분리되어 너트(38)에 의해 결합되어 상기 밸브헤드(34)가 미세하게 움직일 수 있도록 되어 있다.As shown in FIG. 3, the intake / exhaust valve of the engine according to the present invention is separated from the valve stem 32 and the valve head 34 and coupled by a nut 38 so that the valve head 34 can move finely. It is supposed to be.
상기 밸브스템(32)은 끝단이 반구형상의 구면(32a)으로 형성되고 상기 구면(32a)의 중심부에서 돌출되어 암나사(32b)가 형성된다. 그리고 상기 밸브헤드(34)는 상기 밸브스템의 암나사(32b)에 끼워질 수 있도록 중앙에 관통공(34b)이 형성되고 상기 관통공(34b)의 상부는 상기 밸브스템의 구면(32a)에 형합되게 확장되어 밸브시이트(18)와 접촉시 미세하게 회동한다. 그리고 너트(38)는 상기 밸브헤드(34)를 상기 밸브스템(32)에 고정하기 위하여 상기 밸브스템의 암나사(32b)에 체결된다.The valve stem 32 has a hemispherical spherical surface 32a formed at an end thereof, and protrudes from the central portion of the spherical surface 32a to form a female screw 32b. In addition, the valve head 34 has a through hole 34b formed at the center thereof so that the valve head 34 can be fitted to the female screw 32b of the valve stem, and the upper portion of the through hole 34b is formed on the spherical surface 32a of the valve stem. And rotates finely upon contact with the valve seat 18. The nut 38 is fastened to the female screw 32b of the valve stem to fix the valve head 34 to the valve stem 32.
여기서, 상기 밸브헤드(34)와 너트(38)의 접촉부 사이에 틈새를 완전히 밀봉하기 위하여 연성재질로 된 실이나 패킹(39)이 설치되는 것이 바람직하다.Here, in order to completely seal the gap between the valve head 34 and the contact portion of the nut 38, a seal or packing 39 made of a soft material is preferably installed.
상기와 같이 구성된 본 고안에 의한 엔진의 흡배기 밸브의 작용 및 효과는 다음과 같다.The action and effect of the intake and exhaust valve of the engine according to the present invention configured as described above are as follows.
엔진의 연소실(10)에서 계속적으로 피스톤이 왕복운동을 하면서 흡배기 밸브(30)를 통해 혼합가스를 흡입하고 연소가스를 배출한다. 이때 흡배기구의 밸브시이트(18)와 밸브헤드의 밸브스페이스(34a)가 완전히 밀착하여 연소실(10)을 밀봉하여야 한다.As the piston continuously reciprocates in the combustion chamber 10 of the engine, the mixed gas is sucked through the intake and exhaust valve 30, and the combustion gas is discharged. At this time, the valve seat 18 of the intake and exhaust mechanism and the valve space 34a of the valve head are completely in close contact with each other to seal the combustion chamber 10.
상기 연소실의 흡배기구(16)에 설치된 흡배기 밸브(30)가 밸브시이트(18)에 정확하게 밀착되지 않을 때 본 고안의 흡배기 밸브(30)의 밸브헤드(34)가 상기 밸브시이트(18)에 정확히 밀착되도록 밸브스템(32)에서 미세하게 움직이면서 연소실(10)을 완전히 밀봉하게 된다.When the intake / exhaust valve 30 provided in the intake / exhaust mechanism 16 of the combustion chamber is not in close contact with the valve seat 18, the valve head 34 of the intake / exhaust valve 30 of the present invention is precisely connected to the valve seat 18. The combustion chamber 10 is completely sealed while moving finely in the valve stem 32 to be in close contact.
상기와 같이 구성되어 작동되는 본 고안은 밸브스템(32)에 고정된 밸브헤드(34)가 미세하게 움직이기 때문에 밸브시이트(18) 및 밸브헤드(34) 사이의 약간의 가공 오차나 마모 등에 의해 틈새가 발생해도 밸브헤드의 밸브스페이스(34a)가 정확하게 밸브시이트(18)에 밀착할 수 있는 잇점이 있다.The present invention is constructed and operated as described above is a slight movement error or wear between the valve seat 18 and the valve head 34 because the valve head 34 fixed to the valve stem 32 moves finely. Even if a gap occurs, there is an advantage that the valve space 34a of the valve head can be closely adhered to the valve seat 18.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960038660U KR19980025825U (en) | 1996-11-06 | 1996-11-06 | Intake and exhaust valve of the engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960038660U KR19980025825U (en) | 1996-11-06 | 1996-11-06 | Intake and exhaust valve of the engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980025825U true KR19980025825U (en) | 1998-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960038660U KR19980025825U (en) | 1996-11-06 | 1996-11-06 | Intake and exhaust valve of the engine |
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| Country | Link |
|---|---|
| KR (1) | KR19980025825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100580679B1 (en) * | 2004-06-11 | 2006-05-15 | 현대자동차주식회사 | Variable valve |
-
1996
- 1996-11-06 KR KR2019960038660U patent/KR19980025825U/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100580679B1 (en) * | 2004-06-11 | 2006-05-15 | 현대자동차주식회사 | Variable valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |