KR20030016965A - Apparatus of top ring carrier for piston - Google Patents

Apparatus of top ring carrier for piston Download PDF

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Publication number
KR20030016965A
KR20030016965A KR1020010051050A KR20010051050A KR20030016965A KR 20030016965 A KR20030016965 A KR 20030016965A KR 1020010051050 A KR1020010051050 A KR 1020010051050A KR 20010051050 A KR20010051050 A KR 20010051050A KR 20030016965 A KR20030016965 A KR 20030016965A
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KR
South Korea
Prior art keywords
piston
top ring
ring carrier
rib
carrier
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KR1020010051050A
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Korean (ko)
Inventor
문승동
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현대자동차주식회사
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Priority to KR1020010051050A priority Critical patent/KR20030016965A/en
Publication of KR20030016965A publication Critical patent/KR20030016965A/en

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/16—Pistons  having cooling means
    • F02F3/20—Pistons  having cooling means the means being a fluid flowing through or along piston
    • F02F3/22—Pistons  having cooling means the means being a fluid flowing through or along piston the fluid being liquid
    • 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
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/09—Pistons; Trunk pistons; Plungers with means for guiding fluids

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

Abstract

PURPOSE: Top ring carrier structure of a piston is provided to distribute stress of the top ring carrier at combustion by protruding a rib upward on the carrier, and to prevent crack of a piston by enlarging the contact area between the top ring carrier and the piston. CONSTITUTION: A top ring carrier is composed of a ring shaped body(4) recessed in the upper part of a piston(1) to form an oil moving passage(5) and a staple shaped ring combination part(6) formed outside the body. The top ring carrier and a top ring(7) are combined with the upper part of the piston. A rib(10) is protruded upward on the top ring carrier to improve assembling force with the piston, and the upward angle of the rib is equal to direction of stress applied to the body in moving down the piston. Stress is distributed by forming the upward protruded rib on the top ring carrier, and crack is prevented by increasing the contact area between the top ring carrier and the piston.

Description

피스톤 링의 탑 링 캐리어 구조{Apparatus of top ring carrier for piston}Top ring carrier structure of piston ring {Apparatus of top ring carrier for piston}

본 발명은 피스톤의 탑 링 캐리어 구조에 관한 것으로서, 특히 탑 링 캐리어의 상면에 응력방향에 대응하는 방향으로 상향 돌출 형성된 리브를 형성하므로서, 연소동작시 탑 링 캐리어의 본체부에 응력이 리브를 통해 분산되도록 하고, 또 탑 링 캐리어와 피스톤 과의 접촉면적이 증대되도록 하여 피스톤의 부분 크랙현상이발생하지 않도록 한 피스톤의 탑 링 캐리어 구조에 관한 것이다.The present invention relates to a top ring carrier structure of a piston. In particular, a rib is formed to protrude upwardly in a direction corresponding to the stress direction on an upper surface of the top ring carrier, so that stress is applied to the body portion of the top ring carrier during the combustion operation. The present invention relates to a top ring carrier structure of a piston which is dispersed, and in which the contact area between the top ring carrier and the piston is increased so that partial cracking of the piston does not occur.

탑 링 캐리어라 함은 피스톤의 상단부에 형성되어 피스톤에 결합되는 피스톤 링 중에서 최상위의 링 즉, 탑링이 결합되는 장소가 되는 곳으로서, 엔진의 비출력 및 연소압이 증대됨에 따라 탑링의 온도 저감에 의한 탑링 소착방지(연소실 냉각에 유리)를 목적으로 하여 소형 디젤엔진에 적용되고 있다.The top ring carrier is formed at the upper end of the piston and becomes the place where the uppermost ring, that is, the top ring, is coupled between the piston rings coupled to the piston. As the specific power and the combustion pressure of the engine increase, the top ring temperature is reduced. It has been applied to small diesel engines for the purpose of preventing top ring seizure (glass for combustion chamber cooling).

도 1 과 도 2 는 종래의 탑 링 캐리어를 도시한 것으로서,1 and 2 show a conventional top ring carrier,

피스톤(1)의 상단 중앙부위에 인젝터에서 분사되는 연료의 스월을 유도하여 연료와 공기가 잘 혼합되도록 하는 보울(2)이 형성되어 있고, 피스톤(1)의 상단 외주면상에는 다수의 피스톤링이 장착되기 위한 홈들이 형성되어 있다.A bowl (2) is formed at the center of the upper end of the piston (1) to induce a swirl of the fuel injected from the injector to mix the fuel and air well, and a plurality of piston rings are mounted on the upper outer peripheral surface of the piston (1). Grooves to be formed.

탑 링 캐리어는 홈 중에서 최상위의 홈, 즉, 탑 링(7)이 장착되는 곳에 형성되는 것으로서, 본체(4), 링결합부(6)로 대별 구성된다.The top ring carrier is formed at the top of the groove, that is, where the top ring 7 is mounted, and is mainly composed of the main body 4 and the ring coupling portion 6.

상기 본체(4)는 링 모양으로 형성되어 그 내부가 오일이 이동하는 통로, 즉, 오일통로(5)로서 사용되며, 이 본체(4)의 외측으로 'ㄷ'자 모양의 링 결합부(6)가 형성된 것이다.The main body 4 is formed in a ring shape and used as a passage through which oil flows, that is, an oil passage 5, and a 'c' shaped ring coupling part 6 toward the outside of the main body 4. ) Is formed.

피스톤(1)의 내부에는 상기 오일통로(5)와 연결되는 오일입구(3)가 형성된다.An oil inlet 3 connected to the oil passage 5 is formed inside the piston 1.

상기 링 결합부(6)의 홈부위에 탑링(7)이 결합되는 것이며, 상기 탑링(7)은 오일통로(5)를 순환하는 오일에 의해 쉽게 냉각되므로서, 연소실에서의 연소동작에 의해 고온이 탑링(7)에 전달되더라도 쉽게 냉각되어 실린더블럭 내벽에 소착되는 현상이 방지된다.The top ring 7 is coupled to the groove of the ring coupling part 6, and the top ring 7 is easily cooled by oil circulating in the oil passage 5, and thus, the top ring 7 is cooled by a combustion operation in the combustion chamber. Even if delivered to the top ring 7, it is easily cooled and prevented from sintering to the inner wall of the cylinder block.

그러나, 종래의 탑 링 캐리어는 피스톤과 탑 링 캐리어의 재질 특성 차이에 의해 상호 접착력이 부족하게되고, 연소동작시 피스톤이 급강하할때 응력이 도 2 의 A방향과 같이 본체 내측에 집중적으로 가해지게되어 피스톤의 크랙이 발생 기점이 되는 문제점이 발생하고 있었다.However, the conventional top ring carrier lacks mutual adhesion due to the difference in the material properties of the piston and the top ring carrier, and when the piston suddenly drops during the combustion operation, stress is concentrated on the inside of the main body as shown in the A direction of FIG. Therefore, there was a problem that the crack of the piston originated.

즉, 상기 피스톤은 일반적으로 알루미늄 재질을 사용하고 있으며, 탑 링 캐리어는 일반 철금속 재질을 사용하고 있으므로 양금속의 재질 특성 차이에 의해 피스톤과 탑 링 캐리어의 상호 접착력이 약해지게되는 것이며, 또한 연소동작시 피스톤이 급강하할때 응력이 본체의 내측에 집중적으로 가해지므로서 그 부분에서 피스톤의 크랙이 발생하게되는 것이다.That is, the piston is generally made of aluminum, and the top ring carrier is made of a general ferrous material, so that the mutual adhesion between the piston and the top ring carrier is weakened by the difference in material properties of both metals, and also combustion When the piston suddenly drops during operation, stress is concentrated on the inside of the body, causing cracks in the piston.

따라서, 상기 문제점을 해결하기 위한 본 발명은 탑 링 캐리어의 상면에 응력방향에 대응하는 방향으로 상향 돌출 형성된 리브를 형성하므로서, 연소동작시 탑 링 캐리어의 본체부에 응력이 리브를 통해 분산되도록 하고, 또 탑 링 캐리어와 피스톤 과의 접촉면적이 증대되도록 하여 피스톤의 부분 크랙현상이 발생하지 않도록 한 피스톤의 탑 링 캐리어 구조를 제공함을 목적으로 한다.Therefore, the present invention for solving the above problems by forming a rib protruding upward in the direction corresponding to the stress direction on the top surface of the top ring carrier, so that the stress is dispersed through the rib in the body portion of the top ring carrier during the combustion operation Another object of the present invention is to provide a top ring carrier structure of a piston in which the contact area between the top ring carrier and the piston is increased so that partial cracking of the piston does not occur.

상기 목적달성을 위한 본발명은,The present invention for achieving the above object,

피스톤의 상단부 내측에 몰입되어 오일이동통로가 되는 링형상의 본체와, 상기 본체의 외측에 'ㄷ'자 모양으로 형성되는 링결합부로 구성되어 탑링이 결합되는 피스톤의 상단부에 결합되는 탑링 캐리어에 있어서,In the top ring carrier which is composed of a ring-shaped body immersed inside the upper end of the piston to be an oil movement passage, and a ring engaging portion formed in a 'c' shape on the outside of the main body is coupled to the upper end of the piston to which the top ring is coupled. ,

상기 탑 링 캐리어의 상면에 일정길이의 리브를 돌출 형성시켜 피스톤과의결합력이 향상되도록 한 것을 특징으로 한다.A rib having a predetermined length is formed to protrude from the upper surface of the top ring carrier, so that the coupling force with the piston is improved.

그리고, 상기 리브는 본체와 링결합부의 연결부위로 부터 상향 돌출되도록 형성하되, 리브의 상향 각도는 엔진의 연소압에 의해 피스톤이 하강할때 본체의 내측으로 가해지는 응력 방향과 동일하도록 설정한 것을 특징으로 한다.And, the rib is formed so as to project upward from the connecting portion of the main body and the ring coupling portion, the upward angle of the rib is set to be the same as the stress direction applied to the inside of the main body when the piston descends by the combustion pressure of the engine It features.

도 1 은 종래의 탑 링 캐리어 구조를 보인 도면.1 is a view showing a conventional top ring carrier structure.

도 2 는 종래의 탑 링 캐리어 구조를 보인 부분 단면도.2 is a partial cross-sectional view showing a conventional top ring carrier structure.

도 3 은 본 발명의 탑 링 캐리어 구조를 보인 단면도.3 is a cross-sectional view showing a top ring carrier structure of the present invention.

도 4 는 본 발명의 탑 링 캐리어 구조를 보인 부분 단면도.4 is a partial cross-sectional view showing a top ring carrier structure of the present invention.

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

1 : 피스톤 2 : 보울1: piston 2: bowl

3 : 오일입구 4 : 본체3: oil inlet 4: body

5 : 오일통로 6 : 링결합부5: oil passage 6: ring coupling portion

7 : 탑링 10 : 리브7: top ring 10: rib

이하, 첨부된 도면 도 3 과 도 4 를 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 3 and 4.

본 발명의 설명에 있어서 종래와 동일 구성요소에 대해서는 동일부호 처리하여 중복설명을 피했다.In the description of the present invention, the same components as those of the prior art are denoted by the same reference numerals to avoid duplicate explanation.

본 발명의 가장 큰 특징은 탑 링 캐리어의 상면에 별도의 리브(10)를 상향 돌출 형성한 것이다.The biggest feature of the present invention is to form a separate rib 10 protrudes upward on the top surface of the top ring carrier.

상기 리브(10)는 도 3 에 도시된 바와같이 본체(4)와 링결합부(6)의 연결부위에 상향 돌출되도록 형성한 것이다.The rib 10 is formed to protrude upward from the connecting portion of the main body 4 and the ring coupling portion 6 as shown in FIG.

리브(10)의 돌출 방향은 도 4 에 도시된 바와같이 연소력에 의해 피스톤(1)이 급강하할때 오일입구(3)를 통해 응력이 본체(4) 내측으로 가해지는 방향(A)과 동일해지도록 형성하는 것이 바람직하다.As shown in FIG. 4, the protruding direction of the rib 10 is the same as the direction A in which stress is applied to the inside of the main body 4 through the oil inlet 3 when the piston 1 drops sharply by the combustion force. It is preferable to form so that it may become.

상기 설명과같이 본체(4)와 링 결합부(6)의 연결부위에 일정길이의 리브(10)를 돌출 형성하게되면, 탑 링 캐리어가 피스톤(1)에 결합되었을때 도 4 에 도시된 바와같이 피스톤(1)과의 접촉부위가 증가하게되어 그만큼 탑 링 캐리어와 피스톤(1) 상호간의 결합력이 증대되는 효과를 가져오게 된다.As described above, when the rib 10 having a predetermined length is formed to protrude from the connection portion between the main body 4 and the ring coupling portion 6, as shown in FIG. 4 when the top ring carrier is coupled to the piston 1. As described above, the contact area with the piston 1 is increased, thereby bringing an effect of increasing the coupling force between the top ring carrier and the piston 1.

또한, 연소시 피스톤(1)이 급강하할때 오일입구(3)를 통해 A 방향으로 응력이 가해지더라도 이 응력이 도 4 에 도시된 바와같이 수직방향(B1), 리브방향(B2), 링결합부방향(B3)으로 각기 분산되므로서 응력이 직접적으로 가해지는 부분의 피스톤(1)이 쉽게 파손되지 않게되는 효과를 기대할 수 있다.In addition, even if a stress is applied in the A direction through the oil inlet 3 when the piston 1 suddenly drops during combustion, the stress is vertically aligned (B1), rib (B2), ring coupling as shown in FIG. It can be expected that the piston 1 of the portion to which the stress is directly applied is not easily broken by being dispersed in the negative direction B3, respectively.

이상에서 설명한 바와같이 본 발명은 탑 링 캐리어의 상면에 응력방향에 대응하는 방향으로 상향 돌출 형성된 리브를 형성하므로서, 연소동작시 탑 링 캐리어의 본체부에 응력이 리브를 통해 분산되도록 하고, 또 탑 링 캐리어와 피스톤과의 접촉면적이 증대되도록 하여 피스톤의 부분 크랙현상이 발생하지 않도록 한 피스톤의 탑 링 캐리어 구조를 제공하는 효과를 기대할 수 있다.As described above, the present invention forms a rib that protrudes upward in a direction corresponding to the stress direction on the top surface of the top ring carrier, so that stress is distributed to the main body of the top ring carrier through the rib during the combustion operation, and the top The effect of providing a top ring carrier structure of the piston, which is such that the contact area between the ring carrier and the piston is increased so that partial cracking of the piston does not occur.

Claims (2)

피스톤(1)의 상단부 내측에 몰입되어 오일이동통로(5)가 되는 링형상의 본체(4)와, 상기 본체(4)의 외측에 'ㄷ'자 모양으로 형성되는 링결합부(6)로 구성되어 탑링(7)이 결합되는 피스톤(1)의 상단부에 결합되는 탑링 캐리어에 있어서,A ring-shaped body 4 immersed inside the upper end of the piston 1 to be an oil movement passage 5, and a ring coupling portion 6 formed in a 'c' shape on the outside of the body 4. In the top ring carrier which is configured to be coupled to the upper end of the piston 1 to which the top ring 7 is coupled, 상기 탑 링 캐리어의 상면에 일정길이의 리브(10)를 돌출 형성시켜 피스톤(1)과의 결합력이 향상되도록 한 것을 특징으로 하는 피스톤의 탑 링 캐리어 구조.The top ring carrier structure of the piston, characterized in that the coupling force with the piston (1) is improved by projecting the rib 10 of a predetermined length on the upper surface of the top ring carrier. 제 1 항에 있어서,The method of claim 1, 상기 리브(10)는 본체(4)와 링결합부(6)의 연결부위로 부터 상향 돌출되도록 형성하되, 리브(10)의 상향 각도는 엔진의 연소압에 의해 피스톤(1)이 하강할때 본체(4)의 내측으로 가해지는 응력 방향과 동일하도록 설정한 것을 특징으로 하는 피스톤의 탑 링 캐리어 구조.The rib 10 is formed to protrude upward from the connecting portion of the body 4 and the ring coupling portion 6, the upward angle of the rib 10 when the piston (1) is lowered by the combustion pressure of the engine A piston top ring carrier structure, which is set to be the same as the direction of stress applied to the inner side of the main body (4).
KR1020010051050A 2001-08-23 2001-08-23 Apparatus of top ring carrier for piston KR20030016965A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968162U (en) * 1982-10-30 1984-05-09 いすゞ自動車株式会社 Piston with ring trailer
JPS6028245U (en) * 1983-08-01 1985-02-26 リョービ株式会社 Piston with composite wear-resistant ring
JPS61206164U (en) * 1985-06-14 1986-12-26
JPH0227149A (en) * 1988-07-14 1990-01-29 Mitsubishi Automob Eng Co Ltd Piston made of al alloy
JPH05240347A (en) * 1992-02-26 1993-09-17 Hino Motors Ltd Piston abrasion-proof ring for engine
JPH09209829A (en) * 1996-01-31 1997-08-12 Aisin Seiki Co Ltd Piston for internal combustion engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968162U (en) * 1982-10-30 1984-05-09 いすゞ自動車株式会社 Piston with ring trailer
JPS6028245U (en) * 1983-08-01 1985-02-26 リョービ株式会社 Piston with composite wear-resistant ring
JPS61206164U (en) * 1985-06-14 1986-12-26
JPH0227149A (en) * 1988-07-14 1990-01-29 Mitsubishi Automob Eng Co Ltd Piston made of al alloy
JPH05240347A (en) * 1992-02-26 1993-09-17 Hino Motors Ltd Piston abrasion-proof ring for engine
JPH09209829A (en) * 1996-01-31 1997-08-12 Aisin Seiki Co Ltd Piston for internal combustion engine

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