KR19980040918U - PCV (Positive Crankcase Ventilation) Valve Mounting Structure - Google Patents

PCV (Positive Crankcase Ventilation) Valve Mounting Structure Download PDF

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Publication number
KR19980040918U
KR19980040918U KR2019960053999U KR19960053999U KR19980040918U KR 19980040918 U KR19980040918 U KR 19980040918U KR 2019960053999 U KR2019960053999 U KR 2019960053999U KR 19960053999 U KR19960053999 U KR 19960053999U KR 19980040918 U KR19980040918 U KR 19980040918U
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KR
South Korea
Prior art keywords
mounting structure
cylinder head
head cover
valve mounting
ring
Prior art date
Application number
KR2019960053999U
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Korean (ko)
Inventor
고세홍
Original Assignee
박병재
현대자동차 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 박병재, 현대자동차 주식회사 filed Critical 박병재
Priority to KR2019960053999U priority Critical patent/KR19980040918U/en
Publication of KR19980040918U publication Critical patent/KR19980040918U/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00Crankcase ventilating or breathing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10209Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00Crankcase ventilating or breathing
    • F01M2013/0038Layout of crankcase breathing systems
    • F01M2013/0044Layout of crankcase breathing systems with one or more valves

Abstract

본 고안은 원터치식 압착 체결구조로서 형성시켜 보다 손쉬운 장착이 되도록 하면서 0링에 의해 실링성이 향상되도록 하는 PCV밸브 장착 구조에 대한 것인 바 이같은 목적을 달성하기 위하여 본 고안은 실린더 헤드 커버로 장착하는 PVC밸브 장착 구조에 있어서, 삽입단부 외주면 끝단에는 테이퍼진 이탈방지턱(21)이 돌설되도록 하고, 상기 이탈방지턱(21)의 직상부 외주면으로는 0링(30)이 삽입되는 링홈(23)이 형성되도록 하며, 상기 이탈방지턱(21)간으로는 길이방향으로 절개홈(22)이 형성되도록 하여 실린더 헤드 커버(10)에 원터치로 압입 고정되도록 하는 구조가 특징이다.The present invention is for a PCV valve mounting structure that is formed as a one-touch compression fastening structure to be more easily mounted while improving the sealing property by the zero ring. To achieve this purpose, the present invention is mounted as a cylinder head cover. In the PVC valve mounting structure, the tapered release prevention jaw 21 protrudes from the end of the insertion end outer peripheral surface, and the ring groove 23 into which the 0 ring 30 is inserted into the outer peripheral surface of the upper portion of the release stop 21 is inserted. It is formed, and the separation prevention jaw 21 is characterized in that the incision groove 22 is formed in the longitudinal direction to form a press-fit fixed to the cylinder head cover 10.

Description

PCV(Positive Crankcase Ventilation)밸브 장착 구조PCV (Positive Crankcase Ventilation) Valve Mounting Structure

본 고안은 실린더 헤드 커버에서 크랭크 케이스로부터 공급되는 블로바이가스를 엔진 부압에 의해 흡기계로 유도시키도록 하는 PCV(Positive Crankcase Ventilation)밸브 장착 구조에 관한 것이다.The present invention relates to a positive crankcase ventilation (PCV) valve mounting structure for directing blow-by gas supplied from a crankcase to an intake machine by an engine negative pressure in a cylinder head cover.

엔진에서 연소된 연소가스는 대부분 배기 밸브를 통해서 배출이 되기는 하지만 일부는 피스톤과 실린더 벽면의 사이로 누출되어 크랭크 케이스로 유입이 되는 바 이렇게 오일 성분이 함유된 연소가스를 통상 블로바이가스(Blowby Gas)라 하며, 이같은 블로바이가스를 그대로 대기로 방출시키지 않고 흡기계를 통해서 재연소될 수 있도록 하는 것이 크랭크 케이스 배출가스 제어장치이다.Most of the combustion gas from the engine is discharged through the exhaust valve, but some leaks between the piston and the cylinder wall and flows into the crankcase. Thus, the combustion gas containing oil is usually blowby gas. The crankcase exhaust gas control device is such that the blow-by gas can be re-burned through the intake system without being discharged to the atmosphere as it is.

크랭크 케이스로 유입된 블로바이가스는 엔진의 실린더 헤드 상부로 유도되어 실린더 헤드 커버내에 포집이 되는 바 이렇게 포집된 블로바이가스는 기관이 경부하시에는 PVC밸브를 통해서 서지 탱크로 공급이 되나 고부하시에는 브리더 호스를 통해서 에어 클리너의 직후방으로 공급이 된다.The blow-by gas flowed into the crankcase is led to the upper cylinder head of the engine and collected in the cylinder head cover. The collected blow-by gas is supplied to the surge tank through the PVC valve when the engine is light, but under heavy load Feed through the breather hose immediately after the air cleaner.

이렇게 엔진 경부하시 흡기계측의 흡입 부압에 의해서 실린더 헤드 커버내 블로바이가스를 서지 탱크로 유도시키게 되는 것이 PCV밸브인바 이러한 PCV밸브는 통상 도 3에서 보는 바와 같이 PVC밸브(2)의 외주면에는 러버 패킹(3)이 끼워지도록 한 후 상기 러버 패킹(3)이 실린더 헤드 커버(1)에서 견고한 고정 상태가 유지되도록 슬라이드 압입시켜 장착되는 구조이다.Thus, when the engine is lightly loaded, it is the PCV valve that induces blow-by gas in the cylinder head cover to the surge tank by the suction negative pressure on the intake side. The PCV valve is generally provided with rubber packing on the outer circumferential surface of the PVC valve 2 as shown in FIG. After (3) is fitted, the rubber packing (3) is mounted by slide-injection to maintain a firm fixed state in the cylinder head cover (1).

하지만 상기와 같은 장착구조는 실린더 헤드 커버(1)에 용이하게 장착하게 되면 그만큼 이탈이 쉽게 되고, 이탈 방지를 위해서는 실린더 헤드 커버(1)로의 장착이 대단히 난해하며, 특히 장시간이 경과된 후 외주면으로 끼워진 러버 패킹(3)은 탄성이 저감되면서 장착성이 불안해지게 될 뿐만 아니라 오일 실링성이 약화되는 문제점이 있다.However, the mounting structure as described above can be easily detached from the cylinder head cover 1, and the mounting to the cylinder head cover 1 is very difficult to prevent the separation. The fitted rubber packing 3 has a problem in that the elasticity is reduced and the mounting property becomes unstable as well as the oil sealing property is weakened.

본 고안은 상기한 문제점을 감안하여 이를 개선시키기 위한 것으로서, 본 고안은 원터치식 압착체결구조로서 형성시켜 보다 손쉬운 장착이 되도록 하면서 0링에 의해 실링성이 향상되도록 하는 PVC밸브 장착 구조를 제공하는데 목적이 있다.The present invention is to improve this in view of the above-described problems, the present invention is to provide a PVC valve mounting structure to improve the sealing property by the 0 ring while forming a one-touch compression fastening structure to make easier installation. There is this.

상기한 목적을 달성시키기 위한 수단으로 본 고안은 실린더 헤드 커버로 장착되는 PVC밸브 장착 구조에 있어서, 삽입단부 외주면 끝단에는 테이퍼진 이탈방지턱이 돌설되도록 하고, 상기 이탈방지턱의 직상부 외주면으로는 0링이 삽입되는 링홈이 형성되도록 하며, 상기 이탈방지턱 사이에는 길이방향으로 절개홈이 형성되도록 하여 실린더 헤드 커버에 원터치로 압입 고정되도록 한 구조가 특징이다.As a means for achieving the above object, the present invention is a PVC valve mounting structure that is mounted as a cylinder head cover, the tapered departure bumps to the projection end of the outer peripheral end of the insertion end, 0 ring to the outer peripheral surface immediately above the separation bumps It is characterized in that the ring groove to be inserted is formed, the indentation groove is formed in the longitudinal direction between the separation prevention jaw to be press-fit fixed to the cylinder head cover.

도 1은 본 고안에 따른 실시예 구조도.1 is a structural diagram of an embodiment according to the present invention.

도 2는 본 고안의 요부 확대 구조도.2 is an enlarged structural view of the main part of the present invention.

도 3은 종래의 PVC밸브 장착 구조도.Figure 3 is a conventional PVC valve mounting structure diagram.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10:실린더 헤드 커버10: cylinder head cover

11;장착홀11; mounting hole

20:PVC밸브20: PVC valve

21:이탈방지턱21: Breakaway Jaw

22:절개홈22: incision groove

23:링홈23: ring groove

30:0링30: 0 ring

이를 첨부한 실시예 도면을 참조하여 보다 상세하게 설명하면 도 1은 본 고안에 따른 실시예 구조도로서, 도면 부호 10은 실린더 헤드 커버이다.Referring to this in more detail with reference to the accompanying drawings, Figure 1 is an embodiment structural diagram according to the present invention, 10 is a cylinder head cover.

상기의 실린더 헤드 커버(10) 일측으로는 장착홀(11)이 천공되고, 상기 장착홀(11)에는 PVC밸브(20)가 압착된다.The mounting hole 11 is drilled to one side of the cylinder head cover 10, and the PVC valve 20 is compressed to the mounting hole 11.

이렇게 압착되는 PVC밸브(20)의 삽입단부 외주면으로는 서로 대응되는 방향으로 일측으로 테이퍼진 이탈방지턱(21)이 돌설되도록 하되 상기의 이탈방지턱(21)사이 단면에는 상기 PVC밸브(20)의 길이방향으로 절개홈(22)을 요설한다.In this way, the tapered release jaw 21 tapered to one side in a direction corresponding to each other is formed on the outer circumferential surface of the inserted end of the PVC valve 20, but the length of the PVC valve 20 is formed on the cross section between the release jaw 21. The cutting groove 22 is provided in the direction.

또한 상기 이탈방지턱(21)의 직상부 외주면으로는 링홈(23)이 요설되도록 한후 상기 링홈(23)에는 실린더 헤드 커버(10)의 장착홀(11) 내주면간으로 기밀이 유지될 수 있도록 하는 0링(30)이 삽입 장착되도록 한다.In addition, after the ring groove 23 is recessed to the outer peripheral surface of the upper portion of the separation prevention jaw 21, the ring groove 23 is zero to maintain airtightness between the inner circumferential surfaces of the mounting holes 11 of the cylinder head cover 10. The ring 30 is inserted and mounted.

상기한 구조의 PVC밸브(20)는 간단히 삽입단부의 외주면으로 대응되게 돌설시킨 이탈방지턱(21)의 테이퍼진 부분을 실린더 헤드 커버(10)의 장착홀(11)로 압입시키게 되면 이때 상기 이탈방지턱(21)간 절개홈(22)의 간격이 축소되면서 끝단부 직경이 실린더 헤드 커버(10)의 장착홀(11) 내주면 직경보다 작아지게 되어 상기의 이탈방지턱(21)은 장착홀(11)을 통과하게 되며, 이렇게 상기의 이탈방지턱(21)이 장착홀(11)을 벗어나게 되면 축소되어 있던 이탈방지턱(21)간 수축되어 있던 절개홈(22)은 다시 팽창이 되면서 상기 장착홀(11)보다 이탈방지턱(21)의 외주면 직경을 확장시켜 PVC밸브(20)가 빠지지 않도록 견고하게 장착시킨다.The PVC valve 20 having the above structure simply presses the tapered portion of the release preventing jaw 21 which protrudes correspondingly to the outer circumferential surface of the insertion end into the mounting hole 11 of the cylinder head cover 10. As the distance between the incision grooves 22 between 21 decreases, the end diameter becomes smaller than the inner circumferential surface diameter of the mounting hole 11 of the cylinder head cover 10, so that the separation prevention jaw 21 opens the mounting hole 11. When the separation prevention jaw 21 is out of the mounting hole 11, the incision groove 22 that is contracted between the collapsed separation prevention jaw 21 that is reduced is expanded again and is expanded than the mounting hole 11. The outer circumferential surface diameter of the separation prevention jaw 21 is expanded so that the PVC valve 20 is firmly mounted.

이렇게 이탈방지턱(21)이 절개홈(22)을 통과하게 될 때 상기 이탈방지턱(21)의 직상부로 끼워진 0링(30)은 상기 절개홈(22) 내주면에 압착이 되면서 견고한 밀착상태가 유지된다.When the separation prevention jaw 21 passes through the incision groove 22, the 0 ring 30 fitted into the upper portion of the separation prevention jaw 21 is pressed against the inner circumferential surface of the incision groove 22 while maintaining a tight contact state. do.

이러한 조립 구조는 특히 종전의 PVC밸브(2)가 러버 패킹(3)에 의해서 끼워지는 슬라이딩 길이가 길어 압입시 상기 PVC밸브(2)를 과도하게 눌러야 하는데 반해 본 고안에서는 원터치 방식으로 압착 고정시킬 수가 있어 조립작업이 대단히 간편해지게 된다.In particular, the assembly structure of the conventional PVC valve 2 has a long sliding length to be fitted by the rubber packing 3, so the PVC valve 2 needs to be excessively pressed during the press-fit. This makes the assembly work very simple.

그러므로 본 고안에 의해 PVC밸브(20)의 장착을 대단히 간편하게 할 수가 있게 되면서 0링(30)에 의해서 대단히 실링 효율을 향상시켜 오일의 불필요한 소모를 방지할 수 있도록 하는 매우 유용한 효과가 있게 된다.Therefore, the installation of the PVC valve 20 can be made very simple by the present invention, and the ring 0 has a very useful effect of greatly improving the sealing efficiency to prevent unnecessary consumption of oil.

Claims (1)

실린더 헤드 커버로 장착되는 PVC밸브 장착 구조에 있어서,In the PVC valve mounting structure mounted with the cylinder head cover, 삽입단부 외주면 끝단에는 테이퍼진 이탈방지턱(21)이 돌설되도록 하고, 상기 이탈방지턱(21)의 직상부 외주면으로는 0링(30)이 삽입되는 링홈(23)이 형성되도록 하며, 상기 이탈방지턱(21)간으로는 길이방향으로 절개홈(22)이 형성되도록 실린더 헤드 커버(10)에 원터치로 압입 고정되도록 하는 구조를 특징으로 하는 PVC밸브 장착 구조.At the end of the insertion end outer peripheral surface, the tapered release prevention jaw 21 is protruded, and the ring groove 23 into which the 0 ring 30 is inserted is formed at the outer peripheral surface of the upper portion of the release prevention jaw 21. 21) PVC valve mounting structure, characterized in that the structure to be press-fit fixed to the cylinder head cover 10 so that the incision groove 22 is formed in the longitudinal direction.
KR2019960053999U 1996-12-23 1996-12-23 PCV (Positive Crankcase Ventilation) Valve Mounting Structure KR19980040918U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019960053999U KR19980040918U (en) 1996-12-23 1996-12-23 PCV (Positive Crankcase Ventilation) Valve Mounting Structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019960053999U KR19980040918U (en) 1996-12-23 1996-12-23 PCV (Positive Crankcase Ventilation) Valve Mounting Structure

Publications (1)

Publication Number Publication Date
KR19980040918U true KR19980040918U (en) 1998-09-15

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Application Number Title Priority Date Filing Date
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