KR101078522B1 - Reduction of oil mist gas leak system for four stroke diesel engine by using of V-Ring contacted sealing - Google Patents

Reduction of oil mist gas leak system for four stroke diesel engine by using of V-Ring contacted sealing Download PDF

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KR101078522B1
KR101078522B1 KR1020090023105A KR20090023105A KR101078522B1 KR 101078522 B1 KR101078522 B1 KR 101078522B1 KR 1020090023105 A KR1020090023105 A KR 1020090023105A KR 20090023105 A KR20090023105 A KR 20090023105A KR 101078522 B1 KR101078522 B1 KR 101078522B1
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South Korea
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ring
oil
sealing
sealing cover
crankshaft
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KR1020090023105A
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Korean (ko)
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KR20100104587A (en
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김찬선
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현대중공업 주식회사
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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
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • F16J15/447—Labyrinth packings
    • F16J15/453—Labyrinth packings characterised by the use of particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0461—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a labyrinth
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/935—Seal made of a particular material
    • Y10S277/944—Elastomer or plastic

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

본 발명은 엔진 과부하운전중 크랭크케이스 내압이 증가할 때, 크랭크축이 회전하고 엔진크랭크케이스 내의 오일이 오일스로우링과 씰링 사이로 유입되는 경로를 접촉실 브이-링(V-ring)의 회전/접촉 효과를 통하여 유증기 및 오일을 차단시켜 라비린스링의 밀봉효과에 추가하여 유증기 누출을 대폭 개선시키는 기능을 가지는 브이-링의 접촉 씰링을 이용한 4행정 디젤엔진의 유증기 누유 감소 장치를 제공하는데 그 목적이 있다. According to the present invention, when the internal pressure of the crankcase increases during engine overload operation, the rotation / contact of the contact chamber V-ring is performed on the path in which the crankshaft rotates and oil in the engine crankcase flows between the oil throwing and the sealing. The purpose of the present invention is to provide a device for reducing oil leakage of a four-stroke diesel engine using contact sealing of a V-ring, which has a function of significantly reducing oil leakage in addition to the sealing effect of the labyrinth ring by blocking oil and oil through the effect. .

상기한 목적을 달성하기 위한 본 발명은, 크랭크축과 결합되는 씰링 커버와, 상기 크랭크축의 끝단에 설치되며 크랭크축과 씰링 커버 사이에 설치되는 오일스로우링과, 상기 크랭크축과 실링커버 사이에 삽입되는 라비린스링으로 구성된 유증기 누유 방지장치에 있어서, 상기 오일스로우링과 씰링 커버 사이에 브이-링을 삽입하여 기존의 유증기 누유 방지장치와는 달리 브이-링을 추가로 설치함으로써 유증기 누출을 개선하여 엔진의 고부하 연속운전을 가능하게 하고, 엔진오일의 감소 방지 및 환경오염을 방지할 수 있도록 하는 브이-링의 접촉 씰링을 이용한 4행정 디젤엔진의 유증기 누유 감소 장치를 제공하는 것을 그 기술적 요지로 한다.The present invention for achieving the above object, the sealing cover coupled to the crankshaft, the oil throwing ring which is installed between the crankshaft and the sealing cover is installed at the end of the crankshaft, and inserted between the crankshaft and the sealing cover In the vapor leakage prevention device composed of a labyrinth ring, the V-ring is inserted between the oil throwing ring and the sealing cover, unlike the existing vapor leakage prevention device, by installing an additional V-ring to improve the oil leakage by improving the engine The technical gist of the present invention is to provide a device for reducing oil leakage of a four-stroke diesel engine using contact sealing of a V-ring that enables continuous operation of high loads and prevents engine oil reduction and prevents environmental pollution.

크랭크케이스, 누유, 유증기, 라비린스링, 브이-링, 씰링 커버, 디젤엔진 Crankcase, oil leakage, vapor, labyrinth ring, V-ring, sealing cover, diesel engine

Description

브이-링의 접촉 씰링을 이용한 4행정 디젤엔진의 유증기 누유 감소 장치{Reduction of oil mist gas leak system for four stroke diesel engine by using of V-Ring contacted sealing}Reduction of oil mist gas leak system for four stroke diesel engine by using of V-Ring contacted sealing}

본 발명은 디젤엔진의 유증기 누유 감소 장치에 관한 것으로, 더욱 상세하게는 기존의 비접촉식 크랭크축 누유방지 장치를 접촉식 브이-링(V-RING)을 이용하여 엔진 운전중 크랭크케이스에서 발생하는 유증기의 방출을 최소화하여 엔진오일 ㅅ소소모를 방지하고 환경을 개선시킬 수 있도록 하는 브이-링의 접촉 씰링을 이용한 4행정 디젤엔진의 유증기 누유 감소 장치에 관한 것이다. The present invention relates to an oil vapor leak reduction device of a diesel engine, and more particularly, to a conventional oil leak prevention device that uses a contact V-ring to prevent oil leakage from a crankcase during engine operation using a contact V-ring. The present invention relates to a device for reducing oil leakage of a four-stroke diesel engine using contact sealing of a V-ring to minimize emission and to prevent engine oil consumption and to improve the environment.

발전기를 장착하는 선박용 4행정 디젤 엔진은 피스톤의 압축 행정시 크랭크케이스는 누압으로 인하여 항상 일정 압력을 유지하며, 크랭크축은 플라이휠을 거쳐 발전기로 동력을 전달한다. 이때 크랭크케이스의 오일은 크랭크격벽 공간의 크랭크축 회전부의 라비린스링을 통하여 오일의 누출을 차단시키는 기능을 유지시킨다. The four-stroke diesel engine for ships equipped with a generator maintains a constant pressure due to the pressure of the crankcase during the compression stroke of the piston, and the crankshaft transmits power to the generator via the flywheel. At this time, the oil of the crankcase maintains the function of blocking the leakage of oil through the labyrinth ring of the crank shaft rotation of the crank bulkhead space.

이러한 비접촉식 라비린스 링 효과는 엔진의 운전부하가 증가할 경우 크랭크케이스(1)의 내부는 압력이 증가하게 되고(크랭크실 내압 30mmWC), 라비린스 링(5)의 틈으로 밀봉효과가 감소하게 되어 씰링 커버(sealing cover, 3)를 통하여 대기압측인 발전기 설치공간을 통하여 유증기가 누유되며, 이때 오일소모량을 증가시키고 환경오염을 유발시킨다. This non-contact labyrinth ring effect is that when the operating load of the engine increases, the pressure inside the crankcase (1) increases (30 mmWC crankcase internal pressure), the sealing effect is reduced to the gap of the labyrinth ring (5) sealing cover (sealing cover, 3) oil vapor leaks through the generator installation space at the atmospheric pressure side, at this time increases the oil consumption and causes environmental pollution.

도 2 의 화살표는 유증기의 누출경로(10)를 표시한 것이다. The arrow of FIG. 2 shows the leak path 10 of oil vapor.

이러한 오일누유 방지 수단으로, 도 1 에서와 같은 접촉실 라비린스링(5) 사용이 실용화되어 디젤엔진에 적용하고 있으며, 장치의 구성은 크랭크케이스(1), 오일스로우잉(2), 씰링 커버(3), 크랭크축(4), 리비린스링(5)을 통하여 엔진외부의 프라이휠 측으로 유증기 방출을 억제시키고 있으나, 엔진과부하 운전 및 엔진설치 장소의 열부하가 높은 장소에서는 오일차단 효과의 상실로 유증기가 대기로 방출된다. As a means for preventing oil leakage, the use of the contact chamber labyrinth ring 5 as shown in FIG. 1 is practically applied to a diesel engine, and the configuration of the device is a crankcase (1), an oil throwing (2), and a sealing cover ( 3) While the crankshaft (4) and the reclining ring (5) prevent the discharge of oil vapor to the outside of the engine, the oil vapor effect is lost due to the oil blocking effect in the place where the engine overload operation and the heat load of the engine installation place are high. Is released into the atmosphere.

본 발명은 이와 같은 종래의 제반 문제점을 해소하기 위하여 안출한 것으로, 엔진 과부하운전중 크랭크케이스 내압이 증가할 때, 크랭크축이 회전하고 엔진크랭크케이스 내의 오일이 오일스로우링과 씰링 사이로 유입되는 경로를 접촉실 브이-링( V-ring)의 회전/접촉 효과를 통하여 유증기 및 오일을 차단시켜 라비린스링의 밀봉효과에 추가하여 유증기 누출을 대폭 개선시키는 기능을 가지는 브이-링의 접촉 씰링을 이용한 4행정 디젤엔진의 유증기 누유 감소 장치를 제공하는데 그 목적이 있다. The present invention has been made to solve such a conventional problem, and when the crankcase internal pressure increases during engine overload operation, the crank shaft rotates and the oil in the engine crankcase flows between the oil throwing and the sealing Four strokes using V-ring contact sealing, which has a function to greatly improve oil leakage by adding the sealing effect of the labyrinth ring by blocking the oil vapor and oil through the rotation / contacting effect of the contact chamber V-ring. The purpose is to provide a device for reducing oil leakage of a diesel engine.

상기한 목적을 달성하기 위한 본 발명은, 크랭크축과 결합되는 씰링 커버와, 상기 크랭크축의 끝단에 설치되며 크랭크축과 씰링 커버 사이에 설치되는 오일스로우링과, 상기 크랭크축과 실링커버 사이에 삽입되는 라비린스링으로 구성된 유증기 누유 방지장치에 있어서, 상기 오일스로우링과 씰링 커버 사이에 브이-링을 삽입하도록 하는 것을 특징으로 한다. The present invention for achieving the above object, the sealing cover coupled to the crankshaft, the oil throwing ring which is installed between the crankshaft and the sealing cover is installed at the end of the crankshaft, and inserted between the crankshaft and the sealing cover In the oil vapor leakage prevention device consisting of a labyrinth ring, characterized in that the V-ring is inserted between the oil throwing ring and the sealing cover.

한편, 상기 브이-링은 바이톤계열의 합성고무를 사용한 것을 특징으로 한다.On the other hand, the V-ring is characterized in that using a synthetic rubber of Viton series.

이상에서 설명한 바와 같이 본 발명에 의하면, 기존의 유증기 누유 방지장치 와는 달리 브이-링을 추가로 설치함으로써 유증기 누출을 개선하여 엔진의 고부하 연속운전을 가능하게 하고, 엔진오일의 감소 방지 및 환경오염을 방지할 수 있는 매우 유용한 발명인 것이다. As described above, according to the present invention, unlike the existing oil vapor leakage preventing device, by installing an additional V-ring to improve oil leakage, it is possible to continuously operate the high load of the engine, and to prevent engine oil reduction and environmental pollution. It is a very useful invention that can be prevented.

이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시 예를 상세히 설명하면 다음과 같다. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3 은 본 발명인 브이-링의 접촉 씰링을 이용한 4행정 디젤엔진의 유증기 누유 감소 장치에 브이-링을 삽입한 상태를 나타낸 단면도이다. Figure 3 is a cross-sectional view showing a state in which the V-ring is inserted into the oil vapor leakage reduction device of a four-stroke diesel engine using the contact sealing of the V-ring of the present invention.

이에 따르면 본 발명 장치는, 크랭크축(4)과 결합되는 씰링 커버(3)와, 상기 크랭크축(4)의 끝단에 설치되며 크랭크축(4)과 씰링 커버(3) 사이에 설치되는 오일스로우링(2)과, 상기 크랭크축(4)과 씰링 커버(3) 사이에 삽입되는 라비린스링(5)으로 구성된 유증기 누유 방지장치에 있어서, 상기 오일스로우링(2)과 씰링 커버(3) 사이에 브이-링(7)을 삽입하여 구성되어 있다. According to the present invention, the oil cover is installed at the end of the crankshaft 4 and the sealing cover 3 coupled with the crankshaft 4 and is installed between the crankshaft 4 and the sealing cover 3. In the oil vapor leakage preventing device composed of a ring (2) and a labyrinth ring (5) inserted between the crankshaft (4) and the sealing cover (3), between the oil throw ring (2) and the sealing cover (3) It is composed by inserting a V-ring (7).

이는 엔진 과부하운전중 크랭크케이스(1) 내압이 증가할 때, 크랭크축(4)이 회전하고 엔진 크랭크케이스(1) 내의 오일이 오일스로우링(2)과 씰링 커버(3) 사이로 유입되는데, 이때 오일스로우링(2)과 씰링 커버(3) 사이에 'V'자 형상을 하는 브이-링(7)을 삽입하되, 'V'자 형상에서 하나의 일자부분이 오일스로우링(2)과 씰링 커버(3) 사이에 삽입된 후 꺾인 부분이 오일스로우링(2)과 씰링 커버(3) 사이의 빈공간에 대각선 방향으로 위치하도록 삽입함으로써 접촉실 브이-링(V-ring, 7)의 회전/접촉 효과를 통하여 유증기 및 오일을 차단시키도록 하여 라비린스링(5)의 밀봉효과와 함께 유증기 누출을 방지할 수 있도록 한다. This is because when the internal pressure of the crankcase 1 increases during engine overload operation, the crankshaft 4 rotates and oil in the engine crankcase 1 flows between the oil throwing ring 2 and the sealing cover 3, Insert a V-ring (7) having a 'V' shape between the oil throw ring (2) and the sealing cover (3), but one straight portion of the 'V' shape seals with the oil throw ring (2). Rotation of the contact chamber V-ring (7) by inserting the bent part between the cover (3) so that the bent part is positioned diagonally in the empty space between the oil throw ring (2) and the sealing cover (3). It is possible to block the oil vapor and oil through the contact effect to prevent the leakage of oil vapor with the sealing effect of the labyrinth ring (5).

한편, 상기 브이-링(7)은 바이톤계열의 합성고무를 사용하는 것이 바람직하다. On the other hand, the V-ring (7) is preferably using a synthetic rubber of the Viton series.

이와 같은 구성 및 단계로 이루어진 된 본 발명의 작용효과를 설명하면 다음과 같다. Referring to the effect of the present invention made of such a configuration and steps as follows.

크랭크케이스(1)의 오일은 크랭크격벽 공간의 크랭크축(4) 회전부의 라비린 스링(5)을 통하여 오일의 누출을 차단시키는 기능을 한다. The oil of the crankcase 1 serves to block the leakage of oil through the labyrinth ring 5 of the rotation of the crankshaft 4 in the crank partition space.

하지만, 이러한 비접촉식 라비린스링(5) 효과는 엔진의 운전부하가 증가할 경우 크랭크케이스(1)의 내부는 압력 증가로 인하여 라비린스링(5)의 틈으로 밀봉효과가 감소하게 도 2 에서 보는 유증기의 유출경로를 통하여 유증기가 유출된다. However, this non-contact labyrinth ring (5) effect of the oil vapor shown in Figure 2 to reduce the sealing effect to the gap of the labyrinth ring (5) due to the increase in the pressure of the inside of the crankcase (1) when the operating load of the engine increases. The vapor flows through the outflow path.

이를 막기 위하여 유증기의 유출경로인 오일스로우링(2)과 씰링 커버(3) 사이에 브이-링(7)을 삽입하되 'V'자 형상에서 하나의 일자부분이 오일스로우링(2)과 씰링 커버(3) 사이에 삽입된 후 꺾인 부분이 오일스로우링(2)과 씰링 커버(3) 사이의 빈공간에 대각선 방향으로 위치하도록 삽입하여 유증기의 유출을 한번 더 차단함으로써 씰링 커버(3)와 브이-링(7)의 상호 접촉작용으로 인하여 라비린스링(5)으로 유증기의 유입을 차단시킬 수 있다.In order to prevent this, a V-ring (7) is inserted between the oil throwing ring (2) and the sealing cover (3), which are the outflow paths of the oil vapor, but a single portion of the 'V' shape is sealed with the oil throwing ring (2). Inserted between the cover (3) and the bent portion is inserted so as to be positioned diagonally in the empty space between the oil throw ring (2) and the sealing cover (3) to block the outflow of oil vapor one more time by the sealing cover (3) and Due to the mutual contact of the V-rings 7, it is possible to block the ingress of oil vapor into the labyrinth ring 5.

상술한 실시 예는 본 발명의 가장 바람직한 예에 대하여 설명한 것이지만, 상기 실시 예에만 한정되는 것은 아니며, 본 발명의 기술사상을 벗어나지 않는 범위 내에서 다양한 변형이 가능하다는 것은 당업자에게 있어서 명백한 것이다.It should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

도 1 은 종래의 라비린스 링을 사용한 유증기 감소장치를 나타낸 단면도, 1 is a cross-sectional view showing an oil vapor reduction apparatus using a conventional labyrinth ring,

도 2 는 종래의 라비린스 링을 사용한 유증기 감소장치의 누유경로를 나타낸 단면도, Figure 2 is a cross-sectional view showing the oil leakage path of the vapor reduction device using a conventional labyrinth ring,

도 3 은 본 발명인 브이-링의 접촉 씰링을 이용한 4행정 디젤엔진의 유증기 누유 감소 장치를 나타낸 단면도, 3 is a cross-sectional view showing the oil vapor leakage reduction device of a four-stroke diesel engine using the contact sealing of the present invention V-ring,

* 도면의 주요 부분에 대한 부호의 설명 * Explanation of symbols on the main parts of the drawings

1: 크랭크케이스 2: 오일스로우링1: crankcase 2: oil throw ring

3: 씰링 커버(Sealing cover) 4: 크랭크축3: sealing cover 4: crankshaft

5: 라비린스링 6: 플라이휠5: labyrinth ring 6: flywheel

7: 브이-링(V-rind) 10: 누유경로7: V-rind 10: leakage path

Claims (2)

크랭크축과 결합되는 씰링 커버와, 상기 크랭크축의 끝단에 설치되며 크랭크축과 씰링 커버 사이에 설치되는 오일스로우링과, 상기 크랭크축과 실링커버 사이에 삽입되는 라비린스링으로 구성된 유증기 누유 방지장치에 있어서, In the oil vapor leakage prevention device consisting of a sealing cover coupled to the crankshaft, an oil throwing ring installed at the end of the crankshaft and installed between the crankshaft and the sealing cover, and a labyrinth ring inserted between the crankshaft and the sealing cover. , 오일스로우링과 씰링 커버 사이에 'V'자 형상을 하는 브이-링을 삽입하되, 'V'자 형상에서 하나의 일자부분이 오일스로우링과 씰링 커버 사이에 삽입된 후 꺾인 부분이 오일스로우링과 씰링 커버 사이의 빈공간에 대각선 방향으로 위치하도록 삽입함으로써 접촉실 브이-링(V-ring)의 회전/접촉 효과를 통하여 유증기 및 오일을 차단시키도록 하여 라비린스링의 밀봉효과와 함께 유증기 누출을 방지할 수 있는 것을 특징으로 하는 브이-링의 접촉 씰링을 이용한 4행정 디젤엔진의 유증기 누유 감소 장치.Insert a V-ring having a 'V' shape between the oil throwing and the sealing cover, but in the 'V' shape, one straight portion is inserted between the oil throwing and the sealing cover, and the bent portion is the oil throwing ring. By inserting it diagonally in the empty space between the cover and the sealing cover, it blocks the oil and oil through the rotation / contacting effect of the contact chamber V-ring to prevent oil leakage and the sealing effect of the labyrinth ring. A device for reducing oil leakage of a four-stroke diesel engine using contact sealing of a V-ring, which can be prevented. 청구항 1 에 있어서,The method according to claim 1, 상기 브이-링은 바이톤계열의 합성고무를 사용한 것을 특징으로 하는 브이-링의 접촉 씰링을 이용한 4행정 디젤엔진의 유증기 누유 감소 장치.The V-ring is oil vapor leakage reduction device of a four-stroke diesel engine using a contact sealing of the V-ring, characterized in that using a synthetic rubber of Viton series.
KR1020090023105A 2009-03-18 2009-03-18 Reduction of oil mist gas leak system for four stroke diesel engine by using of V-Ring contacted sealing KR101078522B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008025392A (en) 2006-07-19 2008-02-07 Koyo Sealing Techno Co Ltd Attaching structure of oil seal for crankshaft
JP2008025654A (en) 2006-07-19 2008-02-07 Koyo Sealing Techno Co Ltd Oil seal mounting structure for crank shaft

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008025392A (en) 2006-07-19 2008-02-07 Koyo Sealing Techno Co Ltd Attaching structure of oil seal for crankshaft
JP2008025654A (en) 2006-07-19 2008-02-07 Koyo Sealing Techno Co Ltd Oil seal mounting structure for crank shaft

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