KR100219206B1 - Oil-separated p.c.v. valve - Google Patents

Oil-separated p.c.v. valve Download PDF

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Publication number
KR100219206B1
KR100219206B1 KR1019960067336A KR19960067336A KR100219206B1 KR 100219206 B1 KR100219206 B1 KR 100219206B1 KR 1019960067336 A KR1019960067336 A KR 1019960067336A KR 19960067336 A KR19960067336 A KR 19960067336A KR 100219206 B1 KR100219206 B1 KR 100219206B1
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South Korea
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gas
blow
housing
cylindrical member
oil
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KR1019960067336A
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Korean (ko)
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KR19980048699A (en
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김규완
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정몽규
현대자동차주식회사
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    • 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
    • F01M13/04Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • 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
    • F01M13/04Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0438Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a filter

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

본 발명의 목적은 블로바이 가스속에 포함된 오일을 제거하여 양질의 블로바이 가스를 연소실에 공급하게 되는 오일분리겸용 P.C.V 밸브를 제공하는 데 있다.An object of the present invention is to provide an oil separation P.C.V valve for supplying a high quality blow-by gas to the combustion chamber by removing the oil contained in the blow-by gas.

상기한 목적을 달성하기 위하여 본 발명은 크랭크 케이스에 수집된 블로바이 가스를 연소실로 안내하는 P.C.V 관로의 도중에 설치되는 P.C.V 밸브에 있어서,In order to achieve the above object, the present invention provides a P.C.V valve installed in the middle of the P.C.V pipeline for guiding the blow-by gas collected in the crankcase to the combustion chamber,

블로바이 가스의 유입구와 유출구를 갖는 하우징과;A housing having an inlet and an outlet of the blow-by gas;

상기 하우징과의 사이에 상기 유입구를 통해 유입된 블로바이 가스가 도입되는 공간을 형성하도록 하우징 내에 마련되는 원통부재와;A cylindrical member provided in the housing so as to form a space in which the blow-by gas introduced through the inlet is introduced between the housing and the housing;

상기 원통부재를 하우징에 대하여 지지하는 상하 지지부재와;An upper and lower support member for supporting the cylindrical member with respect to the housing;

상기 원통부재의 외주면에 장착되는 오일 흡수필터와;An oil absorption filter mounted on an outer circumferential surface of the cylindrical member;

상기 원통부재의 중공부에 축 방향으로 슬라이딩 이동 가능하게 끼워지며 상기 유입구를 개폐하는 피스톤과;A piston fitted to the hollow portion of the cylindrical member so as to be slidable in an axial direction and for opening and closing the inlet;

상기 하부지지부재와 오일 필터가 안착된 원통부재와 피스톤 및 배출구의 순서로 블로바이 가스의 통과를 허용토록 각각의 부재에 천공되는 복수개의 가스유통공과; 를 포함하여 구성되는 것을 특징으로 한다.A plurality of gas flow holes bored in each member to allow the blow-by gas to pass in the order of the cylindrical member on which the lower support member and the oil filter are seated, the piston and the outlet; Characterized in that comprises a.

Description

오일분리겸용 P.C.V 밸브P.C.V valve for oil separation

본 발명은 크랭크 케이스에 수집된 블로바이 가스(Blow by gas)를 흡기계에 공급하는 P.C.V 관로(Positive Crankcase ventilation line)상에 설치되는 P.C.V 밸브에 관한 것이다.The present invention relates to a P.C.V valve installed on a positive crankcase ventilation line for supplying blow by gas collected in a crank case to an intake machine.

실린더 내에서 누설된 가스나 또는 연료계에서 발생한 가스는 크랭크 케이스내에 수집된 후 P.C.V 관로를 통해 서지탱크 또는 흡기 매니폴드에 공급되어 연소실에 유입 되어지므로써 혼합기와 함께 연소되어 배출되어진다.Gas leaked from the cylinder or gas generated from the fuel system is collected in the crankcase and supplied to the surge tank or the intake manifold through the P.C.V pipeline, and then flows into the combustion chamber and is combusted and discharged together with the mixer.

또한 상기 P.C.V 관로 상에는 흡기의 역류를 방지하고 엔진의 운전 조건에 따라 열림 정도가 변화하는 P.C.V 밸브가 설치되고 있다.In addition, a P.C.V valve is installed on the P.C.V pipeline to prevent backflow of intake air and to change the degree of opening according to the engine operating conditions.

종래 P.C.V 밸브(20)는 도 2 에 도시하는 것과 같이 하우징(21)과 피스톤(22) 및 피스톤(22)을 지지하는 스프링(23)으로 구성되어 블로바이 가스의 공급압(크랭크 케이스의 압력과 흡기부압의 차)에 의해 피스톤(22)이 스프링(23)을 압축하면서 이동하여 그 수축량에 의해 블로바이 가스의 공급량이 자동으로 조정되어 지게 된다. 그러나 블로바이 가스 속에는 엔진 오일등이 포함되어 있어 연소시 카본 등의 불순물이 다량으로 생성되는 문제가 있어 통상 이를 제거하기 위하여 여과기를 별도로 설치하게 되므로써 그 구조가 복잡하고 레이아웃성을 해치게 되는 문제점이 있게 된다.The conventional PCV valve 20 is composed of a housing 21, a piston 22, and a spring 23 supporting the piston 22, as shown in FIG. 2, so that the supply pressure of the blow-by gas (the pressure of the crankcase and the The piston 22 moves while compressing the spring 23 due to the difference in intake negative pressure, and the supply amount of blow-by gas is automatically adjusted by the shrinkage amount. However, the blow-by gas contains engine oil and the like, which causes a large amount of impurities such as carbon during combustion. Therefore, a filter is separately installed to remove this problem, which causes complicated structure and damage to layout. do.

이에 본 발명은 상기한 문제점을 감안하여 제안된 것으로서 그의 목적으로 하는 바는 블로바이 가스속에 포함된 오일을 제거하여 양질의 블로바이 가스를 연소실에 공급하게 되는 오일분리겸용 P.C.V 밸브를 제공하는 데 있다.Accordingly, the present invention has been proposed in view of the above-described problems, and an object thereof is to provide an oil separation / use PCV valve for supplying a high quality blow-by gas to a combustion chamber by removing oil contained in the blow-by gas. .

상기한 목적을 달성하기 위하여 본 발명은The present invention to achieve the above object

크랭크 케이스에 수집된 블로바이 가스를 연소실로 안내하는 P.C.V 관로의 도중에 설치되는 P.C.V 밸브에 있어서,In the P.C.V valve installed in the middle of the P.C.V pipeline for guiding the blow-by gas collected in the crank case to the combustion chamber,

블로바이 가스의 유입구와 유출구를 갖는 하우징과;A housing having an inlet and an outlet of the blow-by gas;

상기 하우징과의 사이에 상기 유입구를 통해 유입된 블로바이 가스가 도입되는 공간을 형성하도록 하우징 내에 마련되는 원통부재와;A cylindrical member provided in the housing so as to form a space in which the blow-by gas introduced through the inlet is introduced between the housing and the housing;

상기 원통부재를 하우징에 대하여 지지하는 상하 지지부재와;An upper and lower support member for supporting the cylindrical member with respect to the housing;

상기 원통부재의 외주면에 장착되는 오일 흡수필터와;An oil absorption filter mounted on an outer circumferential surface of the cylindrical member;

상기 원통부재의 중공부에 축 방향으로 슬라이딩 이동 가능하게 끼워지며 상기 유입구를 개폐하는 피스톤과;A piston fitted to the hollow portion of the cylindrical member so as to be slidable in an axial direction and for opening and closing the inlet;

상기 하부 지지부재와 오일 필터가 안착된 원통부재와 피스톤 및 배출구의 순서로 블로바이 가스의 통과를 허용토록 각각의 부재에 천공되는 복수개의 가스유통공과; 를 포함하여 구성되는 것을 특징으로 한다.A plurality of gas flow holes bored in each member to allow the blow-by gas to pass in the order of the cylindrical member on which the lower support member and the oil filter are seated, the piston and the outlet; Characterized in that comprises a.

도 1 은 본 발명에 의한 오일분리겸용 P.C.V 밸브1 is an oil separation combined P.C.V valve according to the present invention

도 2 는 종래의 P.C.V 밸브2 is a conventional P.C.V valve

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

1 : P.C.V 밸브 2 : 하우징1: P.C.V valve 2: housing

3 : 유입구 4 : 유출구3: inlet 4: outlet

5 : 상부 지지부재 6 : 하부 지지부재5: upper support member 6: lower support member

7 : 원통부재 8 : 공간부7: cylindrical member 8: space part

9 : 중공부 10 : 피스톤9: hollow part 10: piston

11 : 리턴스프링 12 : 오일흡수 필터11: return spring 12: oil absorption filter

13,14,15 : 가스 유통공 16 : 상부 개방공13,14,15: gas distribution hole 16: upper opening hole

이하 본 발명의 구성과 작용을 첨부한 도면을 참조하여 설명한다.Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

도 1 은 본 발명에 의한 오일분리겸용 P.C.V 밸브를 나타내는 도면으로 도면중 부호 1은 본 발명의 P.C.V 밸브이다.1 is a view showing an oil separation combined P.C.V valve according to the present invention, in which 1 is a P.C.V valve of the present invention.

상기 P.C.V 밸브(1)는 하우징(2)을 통하여 P.C.V 관로의 도중에 접속되며 블로바이 가스가 유입되는 유입구(3)와 흡기계 측으로 배출되는 유출구(4)가 구비되어 있다.The P.C.V valve 1 is connected in the middle of the P.C.V pipeline through the housing 2 and has an inlet port 3 through which blow-by gas is introduced and an outlet port 4 discharged to the intake machine side.

상기 하우징(2) 내에는 하우징(2)에 대하여 상하 지지부재(5)(6)에 의해 지지되도록 원통부재(7)가 내장되며 원통부재(7)는 하우징(2)과의 사이에 공간부(8)를 두고 있다.In the housing 2, a cylindrical member 7 is embedded so as to be supported by the upper and lower support members 5 and 6 with respect to the housing 2, and the cylindrical member 7 has a space portion between the housing 2 and the housing 2. (8).

상기 원통부재(7)의 중공부(9)에는 축 방향으로 슬라이딩 이동 가능하게 피스톤(10)이 수용되며 피스톤(10)의 상단은 리턴스프링(11)에 의해 탄발 지지된다. 그리고 상기 원통부재(7)의 외주면에는 오일흡수 필터(12)가 장착되며 하부지지부재(6)와 오일흡수 필터(12)의 장착부인 원통부재(7)와 피스톤(10)에는 각각 복수개의 가스 유통공(13)(14)(15)이 형성되어 있다.The piston 10 is accommodated in the hollow portion 9 of the cylindrical member 7 so as to be slidable in the axial direction, and the upper end of the piston 10 is elastically supported by the return spring 11. An oil absorption filter 12 is mounted on the outer circumferential surface of the cylindrical member 7, and a plurality of gases are provided on the cylindrical member 7 and the piston 10, which are mounting portions of the lower support member 6 and the oil absorption filter 12, respectively. The distribution holes 13, 14 and 15 are formed.

이와같은 본 발명은 엔진의 흡기 부압이 작용시 크랭크 케이스 내와의 압력차에 의해 블로바이 가스압이 피스톤(10) 하단에 작용하게 되어 피스톤(10)이 리턴스프링(11)을 압축하면서 후퇴하게 된다.In the present invention as described above, when the intake negative pressure of the engine acts, the blow-by gas pressure acts on the lower end of the piston 10 due to the pressure difference between the crankcase and the piston 10 retreats while compressing the return spring 11. .

이에따라 유입구(3)와 가스 유통공(13)을 통해 공간부(8)내로 블로바이 가스가 유입된 후 오일흡수 필터(12)를 통과하면서 오일이 분리 되어진다.Accordingly, after the blow-by gas is introduced into the space 8 through the inlet 3 and the gas distribution hole 13, the oil is separated while passing through the oil absorption filter 12.

오일이 제거된 블로바이 가스는 가스 유통공(14)(15)과 피스톤(10) 중심부의 상부 개방공(16)과 유출구(4)를 통해 빠져나가 연소실로 유입되어지게 되며 실린더의 흡입 행정 이외에는 리턴스프링(11)의 탄발력에 의해 피스톤(10)이 하강하여 유입구(3)를 차단하게 된다.The blow-by gas from which the oil is removed is passed through the gas distribution holes 14 and 15 and the upper opening 16 and the outlet 4 in the center of the piston 10 to be introduced into the combustion chamber. The piston 10 is lowered by the elastic force of the return spring 11 to block the inlet 3.

이상과 같은 본 발명에 의하면 P.C.V 밸브에 유량제어 및 오일제거 기능을 구비토록 하는 것에 의해서 블로바이 가스속에 포함된 오일을 제거한 순수한 미연소 가스만을 연소실에 공급하여 연소시키게 되므로써 카본 발생을 방지하게 되는 효과가 있다.According to the present invention as described above, by providing the flow control and oil removal function to the PCV valve, only the unburned gas from which the oil contained in the blow-by gas is removed is supplied to the combustion chamber to be combusted, thereby preventing carbon generation. There is.

Claims (1)

크랭크 케이스에 수집된 블로바이 가스를 연소실로 안내하는 P.C.V 관로의 도중에 설치되는 P.C.V 밸브에 있어서,In the P.C.V valve installed in the middle of the P.C.V pipeline for guiding the blow-by gas collected in the crank case to the combustion chamber, 블로바이 가스의 유입구와 유출구를 갖는 하우징과;A housing having an inlet and an outlet of the blow-by gas; 상기 하우징과의 사이에 상기 유입구를 통해 유입된 블로바이 가스가 도입되는 공간을 형성하도록 하우징 내에 마련되는 원통부재와;A cylindrical member provided in the housing so as to form a space in which the blow-by gas introduced through the inlet is introduced between the housing and the housing; 상기 원통부재를 하우징에 대하여 지지하는 상하 지지부재와;An upper and lower support member for supporting the cylindrical member with respect to the housing; 상기 원통부재의 외주면에 장착되는 오일 흡수 필터와;An oil absorption filter mounted on an outer circumferential surface of the cylindrical member; 상기 원통부재의 중공부에 축 방향으로 슬라이딩 이동 가능하게 끼워지며 상기 유입구를 개폐하는 피스톤과;A piston fitted to the hollow portion of the cylindrical member so as to be slidable in an axial direction and for opening and closing the inlet; 상기 하부 지지부재와 오일 필터가 안착된 원통부재와 피스톤 및 배출구의 순서로 블로바이 가스의 통과를 허용토록 각각의 부재에 천공되는 복수개의 가스유통공과; 를 포함하여 구성되는 것을 특징으로 하는 오일분리겸용 P.C.V 밸브.A plurality of gas flow holes bored in each member to allow the blow-by gas to pass in the order of the cylindrical member on which the lower support member and the oil filter are seated, the piston and the outlet; Combined oil separation P.C.V valve, characterized in that comprises a.
KR1019960067336A 1996-12-18 1996-12-18 Oil-separated p.c.v. valve KR100219206B1 (en)

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KR1019960067336A KR100219206B1 (en) 1996-12-18 1996-12-18 Oil-separated p.c.v. valve

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Application Number Priority Date Filing Date Title
KR1019960067336A KR100219206B1 (en) 1996-12-18 1996-12-18 Oil-separated p.c.v. valve

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KR19980048699A KR19980048699A (en) 1998-09-15
KR100219206B1 true KR100219206B1 (en) 1999-09-01

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