KR19980076424A - Car piston rings - Google Patents

Car piston rings Download PDF

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Publication number
KR19980076424A
KR19980076424A KR1019970013136A KR19970013136A KR19980076424A KR 19980076424 A KR19980076424 A KR 19980076424A KR 1019970013136 A KR1019970013136 A KR 1019970013136A KR 19970013136 A KR19970013136 A KR 19970013136A KR 19980076424 A KR19980076424 A KR 19980076424A
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KR
South Korea
Prior art keywords
cylinder wall
vehicle
piston ring
contact
present
Prior art date
Application number
KR1019970013136A
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Korean (ko)
Inventor
조청용
Original Assignee
김영귀
기아자동차 주식회사
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Application filed by 김영귀, 기아자동차 주식회사 filed Critical 김영귀
Priority to KR1019970013136A priority Critical patent/KR19980076424A/en
Publication of KR19980076424A publication Critical patent/KR19980076424A/en

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Abstract

본 발명은 실린더 벽(S)과 접하는 외주면(20a)이 양측으로 갈라져 각각 사다리꼴을 이룸으로써 실린더 벽(S)과의 접촉면적이 감소되며, 실린더 벽(S)과의 접촉력이 탄성적으로 강화되도록 하는 탄성부재(22)가 내주면(20b)에 부착되는 차량용 피스톤 링을 제공한다.According to the present invention, the outer circumferential surface 20a in contact with the cylinder wall S is divided into two sides to form a trapezoid, respectively, so that the contact area with the cylinder wall S is reduced, and the contact force with the cylinder wall S is elastically strengthened. An elastic member 22 is provided to the vehicle piston ring attached to the inner peripheral surface (20b).

따라서, 상술한 바와 같은 본 발명에 따른 피스톤 링은 실린더 벽과의 마찰이 감소됨과 더불어 밀착성이 향상됨으로써 연소실의 기밀성을 높여 차량의 성능향상에 도움이 된다는 이점을 제공한다.Accordingly, the piston ring according to the present invention as described above provides an advantage that the friction with the cylinder wall is reduced and the adhesion is improved, thereby improving the airtightness of the combustion chamber and thus improving the performance of the vehicle.

Description

차량용 피스톤 링Car piston rings

본 발명은 차량용 피스톤 링에 관한 것으로서, 보다 상세하게는 실린더 벽과의 접촉력이 향상되며, 실린더 벽과의 마찰이 감소됨으로써 차량의 성능향상에 도움이되는 차량용 피스톤 링에 관한 것이다.The present invention relates to a piston ring for a vehicle, and more particularly, to a piston ring for a vehicle, which improves the contact force with the cylinder wall and reduces the friction with the cylinder wall, thereby improving the performance of the vehicle.

일반적으로 도 1에 나타난 것과 같이 차량용 피스톤(P)에는 그 상단에 다수개의 피스톤 링(10)이 장착되어 있는 바, 상기 피스톤 링(10)은 연소실의 기밀을 유지함으로써 팽창가스가 크랭크 케이스로 새는 것을 막고, 피스톤이 받는 열을 실린더 벽에 전달함과 동시에, 실린더 벽에 뿌려진 윤활오일을 긁어내려 유막을 만드는 작용 등을 한다.Generally, as shown in FIG. 1, a plurality of piston rings 10 are mounted on the upper end of the vehicle piston P. The piston rings 10 are leaked into the crankcase by maintaining the airtightness of the combustion chamber. Prevents the heat from being transferred to the cylinder wall, and scrapes off the lubricating oil sprayed on the cylinder wall to form an oil film.

그러나, 이러한 종래의 차량용 피스톤 링(10)은 도 2에 나타난 것과 같이 그 단면이 직사각형으로 이루어져 있고, 단체구조로 형성되어 실린더 벽과의 마찰면이 넓게 형성됨으로써 그 사용에 따라 마모되는 양이 크고, 마모가 진행됨에 따라 실린더 벽과의 밀착력이 점차 약화된다.However, such a conventional piston ring for a vehicle 10 has a rectangular cross section as shown in FIG. 2 and is formed in a single structure so that a friction surface with a cylinder wall is formed to be large, and the amount of wear caused by the use is large. As the wear progresses, the adhesion to the cylinder wall is gradually weakened.

따라서, 상술한 바와 같은 차량용 피스톤 링에 의하면 연소실의 기밀성이 약화되어 엔진의 출력이 떨어질 뿐만 아니라, 윤활오일이 연소실에 과다하게 유입되어 연소되는 등의 문제점이 발생한다.Therefore, according to the piston ring for a vehicle as described above, the airtightness of the combustion chamber is weakened, not only the output of the engine is lowered, but also lubrication oil is excessively introduced into the combustion chamber, causing problems.

본 발명은 상기와 같은 종래기술의 문제점을 해결하기 위하여 안출된 것으로서, 실린더 벽과의 접촉면이 감소됨과 동시에 실린더 벽과의 밀착력 또한 일정하게 유지됨으로써 차량의 성능향상에 도움이 되는 차량용 피스톤 링을 제공하는 것을 목적으로 한다.The present invention has been made to solve the problems of the prior art as described above, the contact surface with the cylinder wall is reduced and at the same time the adhesion to the cylinder wall is also kept constant to provide a vehicle piston ring to help improve the performance of the vehicle. It aims to do it.

도 1은 일반적인 차량용 피스톤 링의 장착상태를 나타낸 사시도이다.1 is a perspective view showing a mounting state of a general vehicle piston ring.

도 2는 종래의 차량용 피스톤 링의 단면을 나타낸 단면도이다.2 is a cross-sectional view showing a cross section of a conventional vehicle piston ring.

도 3은 본 발명에 의한 차량용 피스톤 링의 구조를 나타낸 사시도이다.Figure 3 is a perspective view showing the structure of a vehicle piston ring according to the present invention.

도 4는 본 발명에 의한 차량용 피스톤 링의 사용례를 나타낸 단면도이다.4 is a cross-sectional view showing a use example of a vehicle piston ring according to the present invention.

(도면의 주요 부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)

20a - 외주면 20b - 내주면20a-outer circumference 20b-inner circumference

22 - 탄성부재 S - 실린더 벽22-elastic member S-cylinder wall

상기의 목적을 이루기 위하여 본 발명은 실린더 벽과 접하는 외주면이 양측으로 갈라져 각각 사다리꼴을 이룸으로써 실린더 벽과의 접촉면적이 감소되며, 실린더 벽과의 접촉력이 탄성적으로 강화되도록 하는 탄성부재가 내주면에 부착되는 차량용 피스톤 링을 제공한다.In order to achieve the above object, the present invention has an outer circumferential surface in contact with the cylinder wall divided into two sides to form a trapezoid, respectively, so that the contact area with the cylinder wall is reduced, and an elastic member for elastically strengthening the contact force with the cylinder wall is provided on the inner circumferential surface. It provides a vehicle piston ring to be attached.

이에 따라, 본 발명에 의한 피스톤 링은 그 외주면이 이중으로 실린더 벽과 접하여 연소실의 기밀성이 향상되는 반면에 전체적인 접촉면적은 감소되어 상기 실린더 벽과의 마찰이 감소되며, 마찰에 의해 그 선단이 마모되더라도 탄성부재의 탄성력에 의해 실린더 벽 측으로 밀착된다.Accordingly, the piston ring according to the present invention doubles the outer circumferential surface thereof in contact with the cylinder wall to improve the airtightness of the combustion chamber, while reducing the overall contact area to reduce friction with the cylinder wall, and wear the tip by friction. Even if it is close to the cylinder wall by the elastic force of the elastic member.

이하, 첨부된 도면을 참조하여 본 발명의 실시예를 상세하게 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 실시예는 본 발명의 범위를 한정하는 것이 아니고, 단지 일예로 제시된 것이며, 도면에서 종래의 구성과 동일한 부분에는 동일한 부호를 부여하고, 중복되는 설명은 생략한다.This embodiment is not intended to limit the scope of the present invention, but is presented by way of example only, the same reference numerals are assigned to the same parts as the conventional configurations in the drawings, and redundant descriptions are omitted.

도 3에 나타난 것과 같이 본 발명의 실시예에 의한 차량용 피스톤 링(20)은 실린더 벽(S)과 접하는 외주면(20a) 양측으로 갈라져 각각 사다리꼴을 이룸으로써 실린더 벽(S)과의 접촉면적이 감소되며, 내주면(20b)에는 피스톤(P)과의 사이에서 탄성력을 발휘함으로써 실린더 벽(S)과의 밀착력이 탄성적으로 강화되도록 하는 탄성부재(22)가 부착되는 바, 상기 탄성부재(22)는 피스톤 링(20)의 내주면을 따라 부착되는 코일 스프링으로 이루어진다.As shown in FIG. 3, the vehicle piston ring 20 according to the embodiment of the present invention is divided into both sides of the outer circumferential surface 20a in contact with the cylinder wall S to form a trapezoid, respectively, thereby reducing the contact area with the cylinder wall S. An elastic member 22 is attached to the inner circumferential surface 20b to exert an elastic force between the piston P and the adhesion force with the cylinder wall S to be elastically strengthened. Consists of a coil spring attached along the inner circumferential surface of the piston ring 20.

따라서, 상술한 바와 같은 본 발명의 실시예에 따른 차량용 피스톤 링은 도 4에 나타난 것과 같이 그 외주면(20a)이 이중으로 실린더 벽(S)과 접하여 연소실의 기밀성이 향상되는 반면에 전체적인 접촉면적은 감소되어 상기 실린더 벽(S)과의 마찰이 감소되며, 마찰에 의해 그 선단이 마모되더라도 탄성부재(22)의 탄성력에 의해 실린더 벽(S) 측으로 밀착되기 때문에 연소실의 기밀성이 저하되지 않는다.Therefore, the vehicle piston ring according to the embodiment of the present invention as described above, as shown in Figure 4, the outer peripheral surface 20a of the double contact with the cylinder wall (S) to improve the airtightness of the combustion chamber while the overall contact area is The friction with the cylinder wall S is reduced, and the airtightness of the combustion chamber is not deteriorated because the tip is worn against the cylinder wall S by the elastic force of the elastic member 22 even when the tip is worn by the friction.

상술한 바와 같이 본 발명에 따른 차량용 피스톤 링은 실린더 벽과의 마찰이 감소됨과 더불어 밀착성이 향상됨으로써 연소실의 기밀성을 높여 차량의 성능향상에 도움이 된다는 이점을 제공한다.As described above, the vehicle piston ring according to the present invention provides an advantage of improving the performance of the vehicle by increasing the airtightness of the combustion chamber by reducing friction with the cylinder wall and improving adhesion.

Claims (1)

실린더 벽(S)과 접하는 외주면(20a)이 양측으로 갈라져 각각 사다리꼴을 이룸으로써 실린더 벽(S)과의 접촉면적이 감소되며,The outer circumferential surface 20a in contact with the cylinder wall S is split to both sides to form a trapezoid, respectively, thereby reducing the contact area with the cylinder wall S, 실린더 벽(S)과의 접촉력이 탄성적으로 강화되도록 하는 탄성부재(22)가 내주면(20b)에 부착되는 차량용 피스톤 링.A piston ring for a vehicle to which an elastic member 22 is attached to an inner circumferential surface 20b so that a contact force with the cylinder wall S is elastically strengthened.
KR1019970013136A 1997-04-10 1997-04-10 Car piston rings KR19980076424A (en)

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KR1019970013136A KR19980076424A (en) 1997-04-10 1997-04-10 Car piston rings

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Application Number Priority Date Filing Date Title
KR1019970013136A KR19980076424A (en) 1997-04-10 1997-04-10 Car piston rings

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100475817B1 (en) * 2002-09-02 2005-03-10 현대자동차주식회사 Oil ring mounting apparatus of piston

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100475817B1 (en) * 2002-09-02 2005-03-10 현대자동차주식회사 Oil ring mounting apparatus of piston

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