KR102460496B1 - Piston ring for compression device - Google Patents

Piston ring for compression device Download PDF

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Publication number
KR102460496B1
KR102460496B1 KR1020220028348A KR20220028348A KR102460496B1 KR 102460496 B1 KR102460496 B1 KR 102460496B1 KR 1020220028348 A KR1020220028348 A KR 1020220028348A KR 20220028348 A KR20220028348 A KR 20220028348A KR 102460496 B1 KR102460496 B1 KR 102460496B1
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South Korea
Prior art keywords
piston ring
fitting
compression device
cutout
present
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KR1020220028348A
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Korean (ko)
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표쟁화
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표쟁화
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Priority to KR1020220028348A priority Critical patent/KR102460496B1/en
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Publication of KR102460496B1 publication Critical patent/KR102460496B1/en
Priority to PCT/KR2023/000415 priority patent/WO2023167407A1/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
    • F16J9/12—Details
    • F16J9/14—Joint-closures
    • 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
    • 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
    • F16J9/206—One-piece oil-scraping rings
    • 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
    • F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials

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

Abstract

The present invention relates to a piston ring for a compression device, and is intended to prevent oil leakage through the incision and to maintain a stable compression rate of the compression device by forming both sides of the incision to form a fitting assembly. To realize this, the present invention, in a piston ring (10) for a compression device having a ring shape and forming a cut part (11) on one side, is characterized in that cut ends (12, 13) on both sides forming the cut part (11) are provided with fitting protrusions (12a, 13a) and fitting grooves (12b, 13b) in a symmetrical form so as to be mutually fitted.

Description

압축장치용 피스톤링{Piston ring for compression device} Piston ring for compression device

본 발명은 피스톤링에 관한 것으로서, 더욱 상세하게는 기밀성 유지를 위해 피스톤에 끼워지는 피스톤링의 절개 이음부 구조 개선을 통하여 오일 누출을 방지하기 위한 압축장치용 피스톤링에 관한 것이다.The present invention relates to a piston ring, and more particularly, to a piston ring for a compression device for preventing oil leakage by improving the structure of a cut-out joint of a piston ring fitted to a piston to maintain airtightness.

일반적으로, 자동차 엔진 등과 같은 내연기관의 실린더 내부에 구비되는 피스톤에는 복수의 피스톤링이 구비된다.In general, a piston provided in a cylinder of an internal combustion engine such as an automobile engine is provided with a plurality of piston rings.

내연기관에서는 도 1에 도시된 바와 같이, 피스톤(110)에 복수 피스톤 링그루브(111)가 형성되고, 각각의 피스톤 링그루브(111)에 피스톤링(120)이 구비된다. 통상적으로 피스톤(110)에는 3개의 피스톤링(120)이 구비되는데, 상부 2개의 피스톤링(120)은 압축링으로서, 연소실 내부의 기밀을 유지하고, 연소에 의해 가열된 피스톤(110)의 열을 실린더 블록으로 전달하는 역할을 하고, 최하부의 피스톤링(120)은 실린더 라이너로 공급된 엔진오일을 긁어 내리는 역할을 한다.In an internal combustion engine, as shown in FIG. 1 , a plurality of piston ring grooves 111 are formed in the piston 110 , and a piston ring 120 is provided in each piston ring groove 111 . In general, the piston 110 is provided with three piston rings 120, and the upper two piston rings 120 are compression rings, which maintain airtightness inside the combustion chamber, and dissipate the heat of the piston 110 heated by combustion. It serves to transfer to the cylinder block, and the lowermost piston ring 120 serves to scrape down the engine oil supplied to the cylinder liner.

상기 피스톤링(120)은 조립을 위해서 완전한 형태의 링의 형태가 아니라, 도 2에서와 같이 일측이 분리된 형태의 절개부(121)가 형성된다.The piston ring 120 is not in the form of a complete ring for assembly, but is formed with a cutout 121 having one side separated as shown in FIG. 2 .

그러나, 종래 피스톤링의 절개부를 통해 오일이 누출이 발생됨과 함께 압축률이 저하되는 문제가 발생하는 문제점이 있었다.However, there is a problem in that the compression ratio is lowered along with the leakage of oil through the cutout of the conventional piston ring.

대한민국 특허등록 제1683919호(2016.12.01.등록)Korean Patent Registration No. 1683919 (Registered on Dec. 1, 2016) 대한민국 특허등록 제0879072호(2009.01.09.등록)Korean Patent Registration No. 0879072 (Registered on 2009.01.09.)

본 발명은 상기한 종래 기술에서의 문제점을 개선하기 위해 제안된 것으로서, 피스톤링의 절개부 형상 개선을 통하여 오일 누출현상을 감소시킴과 함께 압축률을 안정적으로 유지시킬 수 있도록 하는데 목적이 있다.The present invention has been proposed to improve the problems in the prior art, and an object of the present invention is to reduce the oil leakage phenomenon and stably maintain the compression ratio through improvement of the shape of the incision of the piston ring.

상기 목적을 이루기 위한 본 발명은, 링 형상을 이루되, 일측에는 절개부를 형성하는 압축장치용 피스톤링에 있어서, 상기 절개부를 형성하는 양측 절개단부에는 상호 끼움 연결이 가능하도록 끼움돌부와 끼움홈이 대칭 형태로 구비된 것을 특징으로 한다.In the present invention for achieving the above object, in the piston ring for a compression device having a ring shape and forming a cutout on one side, a fitting protrusion and a fitting groove are provided at both cutout ends forming the cutout to enable mutual fitting connection. It is characterized in that it is provided in a symmetrical form.

이러한 본 발명의 피스톤링은, 절개부 양측이 단차 형태의 끼움조립 구조를 이루게 됨으로써 절개부위를 통한 오일 누출현상을 방지함과 함께 압축장치의 압축률이 안정적으로 유지될 수 있는 효과를 나타낸다. 또한, 본 발명의 피스톤링에 의하면, 완전한 압축을 보장하여 에너지 효율을 높여 에너지를 절약할 수 있을 뿐만 아니라, 기기의 수명을 연장하고 환경오염을 감소시킬 수 있다.The piston ring of the present invention exhibits an effect that the compression ratio of the compression device can be stably maintained while preventing oil leakage through the incision by forming a fitting assembly structure in the form of a step on both sides of the cutout. In addition, according to the piston ring of the present invention, it is possible to not only save energy by increasing energy efficiency by ensuring complete compression, but also extend the life of the device and reduce environmental pollution.

도 1은 일반적인 피스톤 측면 구조도.
도 2는 종래 기술에서의 피스톤링 부품 사시도.
도 3은 본 발명의 일 실시 예에 따른 피스톤링 부품 사시도.
도 4는 도 3의 A부 확대도.
도 5는 본 발명 피스톤링의 절개부 단면도.
도 6은 본 발명 피스톤링의 일측 절개 단부 사시도.
도 7은 본 발명의 다른 실시 에에 따른 절개 단부 단면 확대도.1 is a schematic side view of a piston.
Figure 2 is a perspective view of a piston ring part in the prior art.
Figure 3 is a perspective view of a piston ring part according to an embodiment of the present invention.
Figure 4 is an enlarged view of part A of Figure 3;
5 is a cross-sectional view of the piston ring of the present invention.
Figure 6 is a perspective view of one side cut-away end of the piston ring of the present invention.
7 is an enlarged cross-sectional view of the cut end according to another embodiment of the present invention.

이하, 본 발명의 구체적인 실시 예를 첨부 도면을 참조하여 상세히 살펴보기로 한다.Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명의 실시 예는 여러 가지 형태로 변형될 수 있으며, 본 발명의 범위가 아래에서 상세히 설명하는 실시 예로 한정되는 것으로 해석되어서는 안 된다. 본 실시 예는 당 업계에서 평균적인 지식을 가진 자에게 본 발명을 더욱 완전하게 설명하기 위하여 제공되는 것이다.Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those of ordinary skill in the art.

따라서, 도면에서 표현한 구성요소의 형상 등은 더욱 명확한 설명을 강조하기 위해서 과장되어 표현될 수 있다. 각 도면에서 동일한 구성은 동일한 참조부호로 도시한 경우가 있음을 유의하여야 한다. 또한, 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 공지 기술의 기능 및 구성에 관한 상세한 설명은 생략될 수 있다.Accordingly, the shape of the components expressed in the drawings may be exaggerated to emphasize a clearer description. It should be noted that the same configuration in each drawing is sometimes illustrated with the same reference numerals. In addition, detailed descriptions of functions and configurations of known technologies that may unnecessarily obscure the gist of the present invention may be omitted.

먼저, 본 발명의 일 실시 예에 따른 피스톤링 구조를 도 3 내지 도 6을 통해 살펴보면 다음과 같다.First, a piston ring structure according to an embodiment of the present invention will be described with reference to FIGS. 3 to 6 .

본 실시 예에서의 압축장치용 피스톤링(10)은, 링 형상을 이루는 가운데 일측에는 절개부(11)를 형성하며, 상기 절개부(11)를 형성하는 양측 절개단부(12,13)에는 상호 끼움 연결이 가능하도록 끼움돌부(12a,13a)와 끼움홈(12b,13b)이 각각 대칭 형태로 구비된다.The piston ring 10 for a compression device in this embodiment forms a cutout 11 on one side of the ring shape, and the cutouts 12 and 13 on both sides forming the cutout 11 have each other. Fitting projections (12a, 13a) and fitting grooves (12b, 13b) are respectively provided in a symmetrical form to enable the fitting connection.

특히, 끼움돌부(12a,13a)와 끼움홈(12b,13b)은 단차 형태를 이루어 대각선 방향으로 구비된다.In particular, the fitting protrusions (12a, 13a) and the fitting grooves (12b, 13b) are provided in a diagonal direction to form a stepped shape.

즉, 절개단부(12,13)를 가상으로 4분할 했을 때 기준면(12c,13c)을 기준으로 끼움돌부(12a,13a)와 끼움홈(12b,13b)이 대각선 방향으로 단차를 형성하여 구비된 것을 확인할 수 있다.That is, when the cut end portions 12 and 13 are virtually divided into four, the fitting protrusions 12a and 13a and the fitting grooves 12b and 13b are provided by forming a step in the diagonal direction based on the reference planes 12c and 13c. that can be checked

이와 같은 구성을 이루는 본 발명 피스톤링의 사용에 따른 작용효과를 살펴보기로 한다.Let's take a look at the effect of the use of the piston ring of the present invention constituting such a configuration.

본 발명의 피스톤링(10)은 내연기관의 압축장치 피스톤에 끼워서 사용이 이루어지는 것으로, 피스톤 동작 과정에서 절개부(11) 에서의 오일 누출 현상이 방지될 수 있게 된다.The piston ring 10 of the present invention is used by being inserted into the piston of a compression device of an internal combustion engine, and the oil leakage phenomenon in the cutout 11 can be prevented in the course of the piston operation.

즉, 절개부(11)에서 양측 절개 단부(12,13)가 끼움돌부(12a,13a)와 끼움홈(12b,13b)의 상호 끼움 걸림 상태를 유지하게 됨으로써 다단 형태의 연결 구조가 유지될 수 있게 된다.That is, in the cutout 11, both cutout ends 12 and 13 maintain the mutually engaged state of the fitting protrusions 12a, 13a and the fitting grooves 12b, 13b, so that a multi-stage connection structure can be maintained. there will be

특히, 피스톤의 연속적인 직선방향 전 후진 동작 과정에서 열팽창 또는 수축으로 인한 신축 변형이 발생되더라도 기밀 구조가 유지될 수 있게 되어 오일의 누출 현상이 방지될 수 있게 되며, 압축률이 보존될 수 있게 되어 연료 절감이 이루어질 수 있게 된다.In particular, even if expansion and contraction deformation due to thermal expansion or contraction occurs during the continuous linear forward/backward operation of the piston, the airtight structure can be maintained, so that the oil leakage phenomenon can be prevented, and the compression ratio can be preserved. savings can be made.

따라서 본 발명의 피스톤링은, 절개부 양측이 단차 형태의 끼움조립 구조를 이루게 됨으로써 절개부위를 통한 오일 누출현상을 방지함과 함께 압축장치의 압축률이 안정적으로 유지될 수 있는 효과를 나타낸다.Therefore, the piston ring of the present invention exhibits an effect that the compression ratio of the compression device can be stably maintained while preventing oil leakage through the cutout by forming a fitting assembly structure in the form of a step on both sides of the cutout.

한편, 도 7은 본 발명의 다른 실시 예에 따른 구조를 나타낸 것으로서, 끼움돌부(12a)의 표면에는 형상 유지력 및 기밀성 향상을 위한 기밀 코팅층(12')이 코팅 형성된 것을 확인할 수 있다.On the other hand, Figure 7 shows a structure according to another embodiment of the present invention, it can be seen that the surface of the fitting protrusion (12a) is coated with an airtight coating layer (12') for improving shape retention and airtightness.

이때, 상기 기밀 코팅층(12')은 에틸렌 수지, 산화그래핀, 브로민산칼륨, 오르가노클로로실란, 클로로포름의 기본 혼합 조성을 이루게 되며, 내열 기능성 향상을 위해서는 나이트록사이드 및 폴리옥시에틸렌알킬에테르 성분이 추가로 첨가될 수 있다.At this time, the airtight coating layer 12' forms a basic mixed composition of ethylene resin, graphene oxide, potassium bromate, organochlorosilane, and chloroform. Additional can be added.

즉, 이때에는 에틸렌 수지 20~40중량%, 산화그래핀 10~30중량%, 브로민산칼륨 10~20중량%, 오르가노클로로실란 5~20중량%, 클로로포름 1~10중량%, 나이트록사이드 1~10중량%, 폴리옥시에틸렌알킬에테르 1~10중량%의 비율로 혼합이 이루어짐이 바람직하다.That is, in this case, 20-40 wt% of ethylene resin, 10-30 wt% of graphene oxide, 10-20 wt% of potassium bromate, 5-20 wt% of organochlorosilane, 1-10 wt% of chloroform, nitroxide Mixing is preferably made in a ratio of 1 to 10% by weight, and 1 to 10% by weight of polyoxyethylene alkyl ether.

이와 같은 기밀 코팅층(12')이 코팅 형성되게 되면, 끼움돌부(12a)의 표면 평탄형상이 안정적으로 유지됨과 함께 끼움홈(13b)과의 접촉에 따른 기밀상태가 향상될 수 있게 된다.When the airtight coating layer 12' is coated, the flat surface shape of the fitting protrusion 12a is stably maintained and the airtight state according to the contact with the fitting groove 13b can be improved.

특히, 기밀 코팅층(12')에는 산화그래핀 및 브로민산칼륨 성분이 혼합되어 있기 때문에 코팅층의 두께가 균일하게 유지됨과 함께 탄력성을 향상시키게 되고, 오르가노클로로실란은 에틸렌 수지의 촉매 기능을 통한 변형 발생이 방지되며, 클로로포름은 코팅 내구성을 향상시키는 기능을 수행하게 된다.In particular, since graphene oxide and potassium bromate components are mixed in the airtight coating layer 12', the thickness of the coating layer is maintained uniformly and elasticity is improved, and organochlorosilane is transformed through the catalytic function of the ethylene resin. generation is prevented, and chloroform performs a function of improving coating durability.

또한, 추가 첨가된 나이트록사이드는 기밀 코팅층(12')의 내열성을 향상시키게 되고, 폴리옥시에틸렌알킬에테르는 상기 혼합성분 상호 간의 결합력 향상을 통한 코팅 밀도가 개선되는 진보된 작용효과를 나타내게 된다.In addition, the additionally added nitroxide improves the heat resistance of the airtight coating layer 12', and the polyoxyethylene alkyl ether exhibits an advanced effect of improving the coating density by improving the bonding force between the mixed components.

그리고 상기에서 본 발명의 특정한 실시 예가 설명 및 도시되었지만 본 발명의 피스톤링 구조가 당업자에 의해 다양하게 변형되어 실시될 수 있음은 자명한 일이다. And although specific embodiments of the present invention have been described and illustrated in the above, it is obvious that the piston ring structure of the present invention may be variously modified and implemented by those skilled in the art.

예를 들면, 피스톤링의 두께 및 지름은 피스톤의 크기에 따라 다양하게 변형되어질 수 있게 된다.For example, the thickness and diameter of the piston ring can be variously modified according to the size of the piston.

따라서 이와 같은 변형된 실시 예들은 본 발명의 기술적 사상이나 범위로부터 개별적으로 이해되어져서는 안되며, 이와 같은 변형된 실시 예들은 본 발명의 첨부된 특허청구범위 내에 포함된다 해야 할 것이다.Accordingly, such modified embodiments should not be individually understood from the technical spirit or scope of the present invention, and such modified embodiments should be included within the appended claims of the present invention.

10 : 피스톤링 11 : 절개부
12,13: 절개 단부 12a,13a: 끼움돌부
12b,13b: 끼움홈10: piston ring 11: cutout
12, 13: cut end 12a, 13a: fitting protrusion
12b, 13b: fitting groove

Claims (5)

링 형상을 이루되, 일측에는 절개부(11)를 형성하는 압축장치용 피스톤링(10)에 있어서,
상기 절개부(11)를 형성하는 양측 절개단부(12,13)에는 상호 끼움 연결이 가능하도록 끼움돌부(12a,13a)와 끼움홈(12b,13b)이 각각 대칭 형태로 구비되며,
상기 끼움돌부(12a)의 표면에는 형상 유지력 및 기밀성 향상을 위한 기밀 코팅층(12')이 코팅 형성되되, 상기 기밀 코팅층(12')은 에틸렌 수지, 산화그래핀, 브로민산칼륨, 오르가노클로로실란, 클로로포름의 혼합 조성을 이루는 것을 특징으로 하는 압축장치용 피스톤링.In the piston ring 10 for a compression device that forms a ring shape, and a cutout 11 is formed on one side,
Fitting protrusions 12a, 13a and fitting grooves 12b, 13b are provided in a symmetrical form on both sides of the cutout ends 12 and 13 forming the cutout 11 to enable mutual fitting connection, respectively.
On the surface of the fitting protrusion 12a, an airtight coating layer 12' for improving shape retention and airtightness is coated, and the airtight coating layer 12' is ethylene resin, graphene oxide, potassium bromate, organochlorosilane. , A piston ring for a compression device, characterized in that it has a mixed composition of chloroform. 청구항 1에 있어서,
상기 끼움돌부(12a,13a)와 끼움홈(12b,13b)은 단차 형태를 이루어 구비된 것을 특징으로 하는 압축장치용 피스톤링.The method according to claim 1,
The piston ring for a compression device, characterized in that the fitting protrusion (12a, 13a) and the fitting groove (12b, 13b) are provided in a stepped shape. 청구항 1에 있어서,
상기 절개단부(12,13)를 가상으로 4분할 했을 때 끼움돌부(12a,13a)와 끼움홈(12b,13b)은 대각선 방향으로 구비된 것을 특징으로 하는 압축장치용 피스톤링.The method according to claim 1,
Piston ring for compression device, characterized in that when the cut end (12, 13) is divided into four virtual fitting projections (12a, 13a) and fitting grooves (12b, 13b) are provided in a diagonal direction. 삭제delete 청구항 1에 있어서,
상기 기밀 코팅층(12')에는 내열성 향상을 위한 나이트록사이드 및 폴리옥시에틸렌알킬에테르 성분이 추가로 첨가된 것을 특징으로 하는 압축장치용 피스톤링.
The method according to claim 1,
A piston ring for a compression device, characterized in that nitroxide and polyoxyethylene alkyl ether components for improving heat resistance are additionally added to the airtight coating layer (12').
KR1020220028348A 2022-03-04 2022-03-04 Piston ring for compression device KR102460496B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
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WO2023167407A1 (en) * 2022-03-04 2023-09-07 표쟁화 Piston ring for compression apparatus

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US4189161A (en) * 1978-08-28 1980-02-19 Muskegon Piston Ring Company Bi-directional ring gap seal
JP2004028320A (en) * 2002-06-28 2004-01-29 Sanyo Electric Co Ltd Piston ring
JP2006038063A (en) * 2004-07-26 2006-02-09 Nok Corp Seal ring
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KR100879072B1 (en) 2007-05-15 2009-01-15 기아자동차주식회사 The Piston Ring which is affixed in Steering gear-box
KR101683919B1 (en) 2011-07-13 2016-12-07 현대자동차주식회사 Piston and piston ring preventing end-cap of piston ring from placing in one line

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JP2000018387A (en) * 1998-06-30 2000-01-18 Riken Corp Seal ring
KR102460496B1 (en) * 2022-03-04 2022-10-28 표쟁화 Piston ring for compression device

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Publication number Priority date Publication date Assignee Title
US4189161A (en) * 1978-08-28 1980-02-19 Muskegon Piston Ring Company Bi-directional ring gap seal
JP2004028320A (en) * 2002-06-28 2004-01-29 Sanyo Electric Co Ltd Piston ring
JP2006038063A (en) * 2004-07-26 2006-02-09 Nok Corp Seal ring
WO2008013281A1 (en) * 2006-07-27 2008-01-31 Nok Corporation Seal ring
KR100879072B1 (en) 2007-05-15 2009-01-15 기아자동차주식회사 The Piston Ring which is affixed in Steering gear-box
KR101683919B1 (en) 2011-07-13 2016-12-07 현대자동차주식회사 Piston and piston ring preventing end-cap of piston ring from placing in one line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023167407A1 (en) * 2022-03-04 2023-09-07 표쟁화 Piston ring for compression apparatus

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