KR20030027271A - Piston ring apparatus for decrease of exhaust gas - Google Patents

Piston ring apparatus for decrease of exhaust gas Download PDF

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Publication number
KR20030027271A
KR20030027271A KR1020010060391A KR20010060391A KR20030027271A KR 20030027271 A KR20030027271 A KR 20030027271A KR 1020010060391 A KR1020010060391 A KR 1020010060391A KR 20010060391 A KR20010060391 A KR 20010060391A KR 20030027271 A KR20030027271 A KR 20030027271A
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KR
South Korea
Prior art keywords
ring
groove
piston
sealing ring
cylinder block
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KR1020010060391A
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Korean (ko)
Inventor
신정수
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현대자동차주식회사
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Priority to KR1020010060391A priority Critical patent/KR20030027271A/en
Publication of KR20030027271A publication Critical patent/KR20030027271A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/06—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction using separate springs or elastic elements expanding the rings; Springs therefor ; Expansion by wedging
    • F16J9/061—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction using separate springs or elastic elements expanding the rings; Springs therefor ; Expansion by wedging using metallic coiled or blade springs
    • F16J9/062—Coiled spring along the entire circumference
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12—Details
    • F16J9/20—Rings with special cross-section; Oil-scraping rings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

PURPOSE: A piston ring structure for reducing exhaust gas is provided to reduce HC gas generated from the incomplete combustion gas, by preventing the incomplete combustion gas from being supplied to the gap formed between the ring groove and compression ring. CONSTITUTION: A piston ring structure comprises a mounting groove(15) formed at the outer surface of a top land portion(14) formed at the top of a ring groove(13); an insertion groove(16) formed at the center of the mounting groove; a coil spring(19) accommodated into the insertion groove; a seal ring(17) having a side supported by the mounting groove and the other side tightly contacting the inner wall of a cylinder block(10), wherein the sealing ring prevents the incomplete combustion gas from being supplied to the gap formed between the ring groove and a compression ring(12); and a protrusion(18) protruded inward from the sealing ring and accommodated into the insertion groove, wherein the protrusion is elastically supported by the coil spring and permits the sealing ring to maintain appropriate frictional force with respect to the inner wall of the cylinder block.

Description

배기가스 감소를 위한 피스톤링 구조{Piston ring apparatus for decrease of exhaust gas}Piston ring apparatus for decrease of exhaust gas

본 발명은 배기가스 감소를 위한 피스톤링 구조에 관한 것으로서, 특히 연소실에서의 연소동작시 불완전연소가스에 의해 발생하는 HC 가스의 발생량을 현저히 감소시킬 수 있도록 한 배기가스 감소를 위한 피스톤링 구조에 관한 것이다.The present invention relates to a piston ring structure for reducing exhaust gas, and more particularly, to a piston ring structure for reducing exhaust gas that can significantly reduce the amount of HC gas generated by incomplete combustion gas during combustion operation in a combustion chamber. will be.

실린더 블럭 내부에 설치되는 피스톤은 연소실 내부로 분사된 혼합기를 효과적으로 압축하여 연소력이 향상되도록 하며, 또 그 연소력에 의해 상하로 왕복운동하면서 엔진의 폭발력을 회전동력으로 변환시키는 역할을 한다.The piston installed inside the cylinder block effectively compresses the mixer injected into the combustion chamber to improve the combustion power, and serves to convert the explosion force of the engine into rotational power while reciprocating up and down by the combustion force.

상기와같은 피스톤에는 오일이 연소실로 침투하는 것을 차단하고, 불완전연소가스의 차단 및 피스톤의 냉각을 위한 피스톤링이 설치되고 있으며, 이러한 피스톤 링에는 피스톤의 최상단에 설치되는 컴프레션링을 포함하고 있다.The piston as described above is provided with a piston ring for preventing oil from penetrating into the combustion chamber, and blocking the incomplete combustion gas and cooling the piston, and the piston ring includes a compression ring installed at the top of the piston.

도 1 은 종래의 피스톤링을 도시한 것으로서,1 shows a conventional piston ring,

실린더블럭(1)의 내부에 피스톤(2)이 설치되고, 상기 피스톤(2)의 외주면 최상단에는 컴프레션링(3)의 결합을 위한 링홈(4)이 형성되어 있다.A piston 2 is installed inside the cylinder block 1, and a ring groove 4 for coupling the compression ring 3 is formed at the top of the outer circumferential surface of the piston 2.

상기 컴프레션링(3)은 연소실의 혼합기 및 연소가스가 피스톤(2)의 하측으로 침투하는 것을 차단하는 것이 주된기능이고, 연소시 피스톤에 전달된 열을 실린더블럭(1)으로 전달하여 냉각시키며, 실린더 블럭(1) 내벽면에 붙어있는 오일을 긁어내리는 역할을 한다.The compression ring (3) is the main function to block the penetration of the mixer and the combustion gas of the combustion chamber to the lower side of the piston (2), and transfers the heat transmitted to the piston during combustion to the cylinder block (1) to cool, Cylinder block (1) to scrape off the oil attached to the inner wall surface.

그러나, 종래의 피스톤링 구조는 링홈(4)의 상측에 형성되어 있는 탑랜드(5)와 실린더블럭(1)의 내벽면 상단 과의 사이와, 링홈(4)과 컴프레션링(3)의 사이에 형성되어 있는 클래비스볼륨(6) 내부로 혼합기가 투입되기 때문에, 연소동작시 화염이 상기 클래비스볼륨(6)에 투입된 혼합기로 전달되지 못하게되어클래비스볼륨(6)에 존재하는 혼합기가 그대로 불완전연소가스의 상태로 남게되고, 이 불완전연소가스에 의해 HC가스의 배출량이 현저히 증가하게되는 문제점이 있었다.However, the conventional piston ring structure is provided between the top land 5 formed on the upper side of the ring groove 4 and the upper end of the inner wall surface of the cylinder block 1, and between the ring groove 4 and the compression ring 3. Since the mixer is introduced into the clavis volume 6 formed in the chamber, flame is not transferred to the mixer introduced into the clavis volume 6 during the combustion operation, and thus the mixer existing in the clavis volume 6 remains as it is. The incomplete combustion gas remains, and the incomplete combustion gas has a problem that the emission of HC gas is significantly increased.

따라서, 상기 문제점을 해결하기 위한 본 발명은 피스톤의 상단에 형성되어 있는 탑랜드의 외주면상에 안착홈을 형성하고, 불완전연소가스의 차단을 위한 밀폐링을 상기 안착홈에 설치하여 엔진 구동시 연소실 내의 불완전연소가스가 링홈과 컴프레션링의 사이 틈새로 공급되지 않도록 하므로서, 연소실에서의 연소동작시 불완전연소가스에 의해 발생하는 HC 가스의 발생량을 현저히 감소시킬 수 있도록 한 배기가스 감소를 위한 피스톤링 구조를 제공함을 목적으로 한다.Accordingly, the present invention for solving the above problems is to form a seating groove on the outer circumferential surface of the top land is formed on the upper end of the piston, and to install a sealing ring for blocking the incomplete combustion gas in the seating groove combustion chamber during engine operation Piston ring structure for exhaust gas reduction that can significantly reduce the amount of HC gas generated by incomplete combustion gas during combustion operation in the combustion chamber, by preventing the incomplete combustion gas inside the gap between the ring groove and the compression ring. It is intended to provide.

상기 목저달성을 위한 본 발명은,The present invention for achieving the neck,

엔진용 피스톤의 상단 외주면상에 링홈이 형성되고, 상기 링홈에 컴프레션링이 설치되어 있는 것에 있어서,In the ring groove is formed on the outer peripheral surface of the upper end of the engine piston, the compression ring is provided in the ring groove,

상기 링홈의 상단에 형성되어있는 탑랜드부의 외주면상에 반원 형상으로 형성되는 안착홈과;A seating groove formed in a semicircle shape on an outer circumferential surface of the top land portion formed at an upper end of the ring groove;

상기 안착홈의 중앙부위에 내측으로 요입 형성되는 삽입홈과;An insertion groove recessed inwardly in a central portion of the seating groove;

상기 삽입홈 내부에 삽입되는 환형의 코일스프링과;An annular coil spring inserted into the insertion groove;

상기 안착홈에 일측이 지지된 상태로 그 타측이 실린더블럭의 내벽면에 밀착되어 불연소가스가 링홈과 컴프레션링의 사이 틈새로 침투하지 않도록 차단하는 밀폐링과;A sealing ring in which the other side is in close contact with the inner wall surface of the cylinder block while the one side is supported by the seating groove so as to prevent incombustible gas from penetrating into the gap between the ring groove and the compression ring;

상기 밀폐링의 내측으로 돌출 형성되어 삽입홈으로 삽입되며, 코일스프링에 탄지되면서 밀폐링이 실린더블럭의 내벽면과 적정한 마찰력을 유지하도록 하는 돌기부; 로 구성된 것을 특징으로 한다.A protrusion which protrudes into the sealing ring and is inserted into an insertion groove, and is held in a coil spring so that the sealing ring maintains an appropriate friction force with the inner wall surface of the cylinder block; Characterized in that consisting of.

도 1 은 종래의 피스톤링 구조를 보인 단면도.1 is a cross-sectional view showing a conventional piston ring structure.

도 2 는 본 발명의 피스톤링 구조를 보인 도면.2 is a view showing a piston ring structure of the present invention.

도 3 은 본 발명에 적용된 밀폐링을 보인 사시도.Figure 3 is a perspective view showing a sealing ring applied to the present invention.

도 4 는 본 발명에 적용된 밀폐링의 단면을 보인 도면.Figure 4 is a view showing a cross section of the sealing ring applied to the present invention.

도 5 는 도 3 의 A-A선 단면도.5 is a cross-sectional view taken along the line A-A of FIG.

도 6 은 본 발명에 적용된 코일스프링을 보인 도면.6 is a view showing a coil spring applied to the present invention.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

10 : 실린더블럭 11 : 피스톤10: cylinder block 11: piston

12 : 컴프레션링 13 : 링홈12: compression ring 13: ring groove

14 : 탑랜드 15 : 안착홈14: Top Land 15: Settlement Home

16 : 삽입홈 17 : 밀폐링16: insertion groove 17: sealing ring

18 : 돌기부 19 : 코일스프링18: projection 19: coil spring

첨부된 도면 도 2 내지 도 6 은 상기 목적달성을 위한 본 발명의 피스톤링구조를 도시한 것으로서, 상기 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.2 to 6 show the piston ring structure of the present invention for achieving the above object, the preferred embodiment of the present invention with reference to the drawings as follows.

도면부호 10 은 실린더블럭을 나타내며, 실린더블럭(10)에는 피스톤(11)이 상하 왕복가능하게 장착된다.Reference numeral 10 denotes a cylinder block, and a piston 11 is mounted on the cylinder block 10 so as to reciprocate up and down.

피스톤(11)의 상단 외주면상에는 컴프레션링(12)이 삽입되기 위한 링홈(13)이 요입 형성되어 있고, 상기 링홈(13)에 컴프레션링(12)이 끼워져 가스의 밀폐 및 피스톤(11)의 냉각 기능을 수행하게 된다.A ring groove 13 for inserting the compression ring 12 is formed in the upper circumferential surface of the piston 11, and the compression ring 12 is inserted into the ring groove 13 to seal the gas and cool the piston 11. It will perform the function.

링홈(13)의 상부에 형성되어 있는 탑랜드(14)의 외주면상에 안착홈(15)과 삽입홈(16)을 형성한다.The mounting groove 15 and the insertion groove 16 are formed on the outer circumferential surface of the top land 14 formed on the upper portion of the ring groove 13.

안착홈(15)은 도 2 에 도시된 바와같이 반원 형성하여 후설하는 밀폐링(17)이 삽입되어 지지될 수 있도록 하며, 삽입홈(16)은 안착홈(15)의 중앙부위에 요입형성하여 상기 밀폐링(17)의 내측으로 돌출 형성되는 돌기부(18)가 삽입되도록 하였다.The seating groove 15 is formed in a semi-circle as shown in FIG. 2 so that the sealing ring 17 to be recessed is inserted and supported, and the insertion groove 16 is recessed in the center of the seating groove 15. The protrusion 18 protruding into the sealing ring 17 is inserted.

상기 밀폐링(17)은 도 3 과 도 4 에 도시된 바와같이 그 단면이 원형으로 형성되는 것이며, 이 밀폐링(17)의 중앙 내측으로 삽입홈(16)에 끼워지기 위한 돌기부(18)가 돌출 형성된다.As shown in FIGS. 3 and 4, the sealing ring 17 has a circular cross section, and a protrusion 18 for fitting into the insertion groove 16 is formed inside the center of the sealing ring 17. Is formed to protrude.

밀폐링(17)의 앤드부(20)는 일정 유격을 가지도록 하면서 도 5 에 도시된 바와같이 일측에 요철부(21)를 형성하고 타측에 요입부(22)를 형성하여 상기 요입부(22)와 요철부(21)가 서로 맞물리는 형태로 존재하도록 하여 가스의 밀폐율이 더욱 향상되도록 하였다.While the end part 20 of the sealing ring 17 has a predetermined clearance, the concave-convex part 21 is formed on one side and the concave part 22 is formed on the other side as shown in FIG. ) And the concave-convex portion 21 are present in engagement with each other to further improve the sealing ratio of the gas.

한편, 도면부호 19 는 상기 삽입홈(16)에 끼워지기 위한 코일스프링을 나타내며, 상기 코일스프링(19)은 삽입홈(16)에 삽입된 상태로 밀폐링(17)의 돌기부(18)를 탄지하여 밀폐링(17)이 적절한 마찰력으로 실린더블럭(10) 내벽면과 접촉되도록 한다.Meanwhile, reference numeral 19 denotes a coil spring to be fitted into the insertion groove 16, and the coil spring 19 is supported by the projection 18 of the sealing ring 17 in a state of being inserted into the insertion groove 16. Thus, the sealing ring 17 is in contact with the inner wall surface of the cylinder block 10 with an appropriate friction force.

이와같이 구성된 본 발명의 작용 및 효과를 설명하면 다음과같다.Referring to the operation and effects of the present invention configured as described above are as follows.

먼저, 체결과정을 설명하면,First, explaining the fastening process,

피스톤(11)의 탑랜드(14)부 외주면상에 안착홈(15)과 삽입홈(16)을 형성하고, 상기 삽입홈(16)에 먼저 코일스프링(19)을 삽입한 후 그 외측으로 밀폐링(17)을 안착홈(15)에 삽입하되, 이때 밀폐링(17)의 내측으로 돌출 형성되어있는 돌기부(18)를 삽입홈(16)에 삽입시켜 돌기부(18)의 끝부분이 코일스프링(19)에 탄지되도록 한다.The mounting groove 15 and the insertion groove 16 are formed on the outer circumferential surface of the top land 14 of the piston 11, and the coil spring 19 is first inserted into the insertion groove 16 and then sealed to the outside thereof. The ring 17 is inserted into the seating groove 15. At this time, the protrusion 18, which protrudes inwardly of the sealing ring 17, is inserted into the insertion groove 16 so that the end of the protrusion 18 is coil spring. (19) to be burnt.

이와같이하면 코일스프링(19)의 탄성에 의해 밀폐링(17)이 실린더블럭(10)의 내벽면에 적당한 마찰력을 유지하면서 밀착되므로서 연소실로 유입되는 혼합기가 클래버스볼륨(링홈과 컴프레션링의 사이, 탑랜드와 실린더블럭의 사이)에 침투하지 못하게되고, 이에의해 연소동작시 불완전연소가스의 발생량이 현저히 감소하게되며, 미연소가스의 발생량이 감소함에 따라 배출되는 HC가스의 양 또한 줄어들게되는 것이다.In this way, the sealing ring 17 is brought into close contact with the inner wall surface of the cylinder block 10 by the elasticity of the coil spring 19, so that the mixer flowing into the combustion chamber has a clavers volume (between the ring groove and the compression ring). The incomplete combustion gas is greatly reduced during combustion, and the amount of HC gas emitted is also reduced as the amount of unburned gas is reduced. .

이상에서 설명한 바와같이 본 발명은 피스톤의 상단에 형성되어 있는 탑랜드의 외주면상에 안착홈을 형성하고, 불완전연소가스의 차단을 위한 밀폐링을 상기 안착홈에 설치하여 엔진 구동시 연소실 내의 불완전연소가스가 링홈과 컴프레션링의 사이 틈새로 공급되지 않도록 하므로서, 연소실에서의 연소동작시 불완전연소가스에 의해 발생하는 HC 가스의 발생량을 현저히 감소시킬 수 있도록 한 배기가스 감소를 위한 피스톤링 구조를 제공하는 효과를 기대할 수 있다.As described above, the present invention forms a seating groove on the outer circumferential surface of the top land formed at the upper end of the piston, and installs a sealing ring for blocking the incomplete combustion gas in the seating groove to incomplete combustion in the combustion chamber during engine operation. Providing a piston ring structure for reducing exhaust gas, which prevents the gas from being supplied into the gap between the ring groove and the compression ring, thereby significantly reducing the amount of HC gas generated by the incomplete combustion gas during the combustion operation in the combustion chamber. You can expect the effect.

Claims (1)

엔진용 피스톤의 상단 외주면상에 링홈(13)이 형성되고, 상기 링홈(13)에 컴프레션링(12)이 설치되어 있는 것에 있어서,In the ring groove 13 is formed on the outer peripheral surface of the upper end of the engine piston, the compression ring 12 is provided in the ring groove 13, 상기 링홈(13)의 상단에 형성되어있는 탑랜드부(14)의 외주면상에 반원 형상으로 형성되는 안착홈(15)과;A seating groove 15 formed in a semicircle shape on an outer circumferential surface of the top land portion 14 formed at an upper end of the ring groove 13; 상기 안착홈(15)의 중앙부위에 내측으로 요입 형성되는 삽입홈(16)과;An insertion groove 16 recessed inwardly in a central portion of the seating groove 15; 상기 삽입홈(16) 내부에 삽입되는 환형의 코일스프링(19)과;An annular coil spring (19) inserted into the insertion groove (16); 상기 안착홈(15)에 일측이 지지된 상태로 그 타측이 실린더블럭(10)의 내벽면에 밀착되어 불연소가스가 링홈(13)과 컴프레션링(12)의 사이 틈새로 침투하지 않도록 차단하는 밀폐링(17)과;The other side is in close contact with the inner wall surface of the cylinder block 10 while one side is supported by the seating groove 15 to block the non-combustible gas from penetrating into the gap between the ring groove 13 and the compression ring 12. Sealing ring 17; 상기 밀폐링(17)의 내측으로 돌출 형성되어 삽입홈(16)으로 삽입되며, 코일스프링(19)에 탄지되면서 밀폐링(17)이 실린더블럭(10)의 내벽면과 적정한 마찰력을 유지하도록 하는 돌기부(18); 로 구성된 것을 특징으로하는 배기가스 감소를 위한 피스톤링 구조.It is formed to protrude inwardly of the sealing ring 17 is inserted into the insertion groove 16, while being held in the coil spring 19 so that the sealing ring 17 maintains an appropriate friction force with the inner wall surface of the cylinder block 10. Protrusion 18; Piston ring structure for reducing exhaust gas, characterized in that consisting of.
KR1020010060391A 2001-09-28 2001-09-28 Piston ring apparatus for decrease of exhaust gas KR20030027271A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63187775U (en) * 1987-05-26 1988-12-01
JPH0525063U (en) * 1991-02-25 1993-04-02 いすゞ自動車株式会社 piston

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63187775U (en) * 1987-05-26 1988-12-01
JPH0525063U (en) * 1991-02-25 1993-04-02 いすゞ自動車株式会社 piston

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