KR100204772B1 - Valve device for triple overhead cam shaft type of automatic vehicle - Google Patents

Valve device for triple overhead cam shaft type of automatic vehicle Download PDF

Info

Publication number
KR100204772B1
KR100204772B1 KR1019960065326A KR19960065326A KR100204772B1 KR 100204772 B1 KR100204772 B1 KR 100204772B1 KR 1019960065326 A KR1019960065326 A KR 1019960065326A KR 19960065326 A KR19960065326 A KR 19960065326A KR 100204772 B1 KR100204772 B1 KR 100204772B1
Authority
KR
South Korea
Prior art keywords
intake
port
diameter
cylinder head
exhaust
Prior art date
Application number
KR1019960065326A
Other languages
Korean (ko)
Other versions
KR19980046898A (en
Inventor
박종일
Original Assignee
류정열
기아자동차주식회사
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.)
Filing date
Publication date
Application filed by 류정열, 기아자동차주식회사 filed Critical 류정열
Priority to KR1019960065326A priority Critical patent/KR100204772B1/en
Publication of KR19980046898A publication Critical patent/KR19980046898A/en
Application granted granted Critical
Publication of KR100204772B1 publication Critical patent/KR100204772B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

본 발명은 차량의 트리플 오버헤드 캠샤프트식 밸브장치에 관한 것으로, 종래에는 기통당 작은 흡기포트를 여러개 형성시키므로 실린더헤드면에 남아있는 공간 즉 포트와 포트사이의 유효공간이 많이 생기게 된다. 이에 상기 실린더헤드의 연소실면의 유효공간을 충분히 활용하지 못하므로, 다량의 혼합기를 흡입시키는데 한계를 느끼게 되는 문제가 있었다.The present invention relates to a triple overhead camshaft valve device of a vehicle, and in the related art, since a plurality of small intake ports are formed per cylinder, a space left on the cylinder head surface, that is, an effective space between the port and the port is created. Accordingly, since the effective space on the combustion chamber surface of the cylinder head is not sufficiently utilized, there is a problem in that a limit for suctioning a large amount of the mixer is felt.

본 발명은 예시도면 도 3 내지 도 4와 같이, 연소실(10)을 이루는 실린더헤드(7)면 일측에 수평으로 상면에는 수직으로 형성된 1차 대구경 흡기포트(22)와 2차 대구경 흡기포트(24)가 실린더헤드면의 유효공간을 120o정도 커버하여 남는 공간을 충분히 활용할 수 있도록 형성되어 있고, 상기 각 흡기포트(22)(24)를 2개의 흡기용 캠샤프트(30)(32)의 구동으로 작동하는 1·2차 대구경 흡기밸브(28)(28`)가 개폐시키므로, 흡기시 흡입되는 혼합기양이 극대화되어 엔진출력이 크게 향상되는 것이다.3 to 4, the primary large-diameter intake port 22 and the secondary large-diameter intake port 24 formed horizontally on one side of the cylinder head 7 constituting the combustion chamber 10 and vertically on the upper surface thereof are illustrated. Is formed to cover the effective space of the cylinder head surface about 120 o to fully utilize the remaining space, and each of the intake ports (22) and (24) to drive the two intake camshafts (30) Since the primary and secondary large-diameter intake valves 28 and 28` which operate in and out are opened and closed, the amount of inhaled mixture is maximized and the engine output is greatly improved.

Description

차량의 트리플 오버헤드 캠샤프트식 밸브장치Triple Overhead Camshaft Valve Units in Vehicles

본 발명은 차량의 트리플 오버헤드 캠샤프트식 밸브장치에 관한 것으로, 더욱 상세하게는 2개의 흡기용 캠샤프트와 하나의 배기용 캠샤프트를 사용하여 측면의 흡기포트와 상면의 흡기포트를 개폐토록 하여 흡기밸브의 흡기면적을 극대화시킴으로써 엔진출력을 획기적으로 향상시키도록 한 차량의 트리플 오버헤드 캠샤프트식 밸브장치에 관한 것이다.The present invention relates to a triple overhead camshaft valve device of a vehicle. More particularly, two intake camshafts and one exhaust camshaft are used to open and close the side intake port and the upper intake port. The present invention relates to a triple overhead camshaft valve device for a vehicle that significantly improves engine power by maximizing an intake area of an intake valve.

일반적으로 차량의 엔진에는 크랭크 축의 회전으로 각 실린더의 흡기밸브, 배기밸브를 점화 순서대로 설계된 시기에 개폐작용을 하도록 하는 밸브기구가 구성되어 있으며, 밸브 배치와 연소실 형상에 의해 사이드 밸브식, 오버헤드 밸브식(OHV), 오버헤드 캠샤프트식(OHC) 등이 있다.In general, the engine of a vehicle includes a valve mechanism that opens and closes the intake valves and exhaust valves of each cylinder by the rotation of the crankshaft at the time of the ignition order, and the valve arrangement and the shape of the combustion chamber make the side valve type and the overhead. Valve type (OHV), overhead camshaft type (OHC), and the like.

여기서는 오버헤드 캠샤프트식 밸브장치에 있어서 가장 널리 사용되는 캠샤프트가 한쌍인 더블 오버헤드 캠샤프트식(DOHC) 밸브장치에 대한 것으로, 이는 예시도면 도 1과 도 2에 도시한 바와 같다.Here, a double overhead camshaft (DOHC) valve device having a pair of camshafts most widely used in an overhead camshaft valve device is shown in FIGS. 1 and 2.

종래의 DOCH방식은 두개의 캠샤프트(1)(2)에 기통당 4개의 밸브(3)(4)(5) (6), 즉 2개의 흡기포트(11)를 개폐토록 흡기밸브(3)(4) 2개, 2개의 배기포트(12)를 개폐토록 한 배기밸브(5)(6) 2개를 구성하여 흡기시기에 2개의 흡기밸브를 동시에 작동시켜 혼합기를 흡입하고, 또한 연소후에는 한쌍의 배기밸브를 동시에 작동시켜주어 배기가스를 배출할 수 있도록 되어 있다..The conventional DOCH method has four valves (3) (4) (5) (6) per cylinder on two camshafts (1) and (2), that is, two intake ports (11) to open and close the intake valve (3). (4) Two exhaust valves (5) and (6), which open and close two and two exhaust ports 12, are configured to operate two intake valves at the same time during intake to inhale the mixer, and after combustion By operating a pair of exhaust valves at the same time, it is possible to exhaust the exhaust gas.

이것은 싱글 오버헤드 캠샤프트식(SOHC)보다 흡기량을 많게 함으로써 성능을 더 높게 하는 효과를 갖게 한다.This has the effect of making the performance higher by increasing the amount of intake air than the single overhead camshaft type SOHC.

최근에는 흡기량을 더 높이기 위한 방안으로 DOHC를 응용한 5밸브식 즉 흡기밸브 3개, 배기밸브2개도 개발되고 있다.Recently, a five-valve type, three intake valves and two exhaust valves using DOHC have been developed as a way to further increase the intake rate.

이러한 다밸브식은 연소실(10)을 구성하는 실린더헤드(7)면의 유효면적을 충분히 활용하여 흡기량을 증대시켜 주도록 하는 것이며, 실린더헤드(7)내에 흡기포트를 여러개 구성한 것이다.The multi-valve type is to increase the amount of intake air by fully utilizing the effective area of the surface of the cylinder head 7 constituting the combustion chamber 10, and constitutes a plurality of intake ports in the cylinder head 7.

종래의 이러한 2개의 캠샤프트(1)(2)를 이용한 기통당 다 밸브식의 밸브장치에 있어서는 많은 흡기를 공급할수록 엔진성능이 올라간다는 사실을 충족시키기위해 연소실을 구성하는 실린더헤드(7)면에 직경이 작은 흡기포트를 일측에 쌍으로 구성하여 상기 포트직경에 맞도록 된 밸브를 사용하고 있다.In the conventional multi-valve valve device using these two camshafts (1) and (2), the cylinder head (7) surface constituting the combustion chamber to satisfy the fact that the engine performance is increased as more intake air is supplied. An intake port with a small diameter is formed in pairs on one side, and a valve adapted to match the port diameter is used.

따라서, 흡기시기에 다수의 흡기밸브로 흡기포트를 개폐하면 많은 혼합기가 기통의 연소실내에 공급되도록 하여 점화플러그(8)의 일회점화시 큰 폭발력을 얻도록 하여 엔진의 출력을 높이고 있다.Therefore, when the intake port is opened and closed with a plurality of intake valves during the intake period, many mixers are supplied into the combustion chamber of the cylinder to obtain a large explosive force during the one-time ignition of the spark plug 8, thereby increasing the engine output.

미설명부호 9는 피스톤이고, 11은 크랭크축이며, 12는 타이밍밸트 이다.Reference numeral 9 is a piston, 11 is a crankshaft, and 12 is a timing belt.

그러나, 종래에는 많은 흡기를 공급할수록 엔진성능이 올라간다는 사실을 충족시키기위해 연소실을 구성하는 실린더헤드(7)면에 직경이 작은 흡기포트(11)를 일측에 다수 형성하여 상기 포트직경에 맞도록 된 밸브를 사용하는데에는 작은 흡기포트(11)를 여러개 형성시키므로 실린더헤드(7)면에 남아있는 공간 즉 포트와 포트사이의 유효공간이 많이 생기게 된다. 이에 상기 실린더헤드의 연소실면의 유효공간을 충분히 활용하지 못하므로, 다량의 혼합기를 흡입시키는데 한계를 느끼게 되는 문제가 있었다.However, conventionally, in order to satisfy the fact that the engine performance increases as more intake air is supplied, a plurality of small intake ports 11 are formed on one side of the cylinder head 7 constituting the combustion chamber to meet the port diameter. In order to use the valve, a plurality of small intake ports 11 are formed, so that the space remaining on the cylinder head 7 surface, that is, the effective space between the port and the port is created. Accordingly, since the effective space on the combustion chamber surface of the cylinder head is not sufficiently utilized, there is a problem in that a limit for suctioning a large amount of the mixer is felt.

따라서, 본 발명은 상기한 종래의 문제를 해결하기 위하여 안출된 것으로, 2개의 흡기용 캠샤프트와 하나의 배기용 캠샤프트를 사용하여 측면의 대구경 흡기포트와 상면의 대구경 흡기포트를 개폐토록 하여 대구경 흡기밸브의 흡기면적을 극대화시킴으로써 엔진출력을 획기적으로 향상시키도록 한 차량의 트리플 오버헤드 캠샤프트식 밸브장치를 제공하고자 함에 발명의 목적이 있다.Accordingly, the present invention has been made in order to solve the above-mentioned conventional problems, by using two intake camshafts and one exhaust camshaft to open and close the large-diameter intake port on the side and the large-diameter intake port on the upper surface. It is an object of the present invention to provide a triple overhead camshaft valve device for a vehicle that significantly improves the engine output by maximizing the intake area of the intake valve.

상기와 같은 목적을 실현하기 위한 본 발명은 피스톤과 함께 연소실을 이루는 실린더헤드면중 일측면에 1차 대구경 흡기포트가 형성되고, 상면에는 연소실에 수직으로 된 2차 대구경 흡기포트가 형성되며, 타측면에는 배기포트가 형성되고, 상기한 1차 대구경 흡기포트내에는 대구경 흡기밸브가 1차 흡기용 캠샤프트에 의해 개폐되도록 수평 장착되고, 2차 대구경 흡기포트내에는 대구경 흡기밸브가 2차 흡기용 캠샤프트에 의해 개폐되도록 수직 장착되며, 배기포트에는 배기밸브가 배기용 캠샤프트에 의해 개폐되도록 수평 장착된 것이다.According to the present invention for realizing the above object, a first large diameter intake port is formed on one side of a cylinder head surface forming a combustion chamber together with a piston, and a second large diameter intake port perpendicular to the combustion chamber is formed on an upper surface thereof. An exhaust port is formed at the side surface, and the large diameter intake valve is horizontally mounted in the primary large intake port so as to be opened and closed by the primary intake camshaft, and the large diameter intake valve is provided in the secondary large intake port. It is vertically mounted to be opened and closed by the cam shaft, and the exhaust port is horizontally mounted to be opened and closed by the cam shaft for exhaust.

또한 상기한 1·2차 흡기용 캠샤프트와 배기용 캠샤프트는 실린더헤드내에 정삼각형의 꼭지점에 해당하는 위치에 장착되는 것이다.The primary and secondary intake camshafts and the exhaust camshafts described above are mounted at positions corresponding to vertices of equilateral triangles in the cylinder head.

따라서, 본 발명은 연소실을 이루는 실린더헤드면 일측에 수평으로 상면에는 수직으로 형성된 1차 대구경 흡기포트와 2차 대구경 흡기포트가 실린더헤드면의 유효공간을 120o정도 커버하여 남는 공간을 충분히 활용할 수 있도록 형성되어 있고, 상기 각 흡기포트를 2개의 흡기용 캠샤프트의 구동으로 작동하는 1·2차 대구경 흡기밸브가 개폐시키므로, 흡기시 흡입되는 혼합기양이 극대화되어 엔진출력이 크게 향상되는 것이다.Therefore, the present invention can utilize the remaining space of the primary large diameter intake port and the secondary large diameter intake port formed vertically on the upper surface horizontally on one side of the cylinder head surface constituting the combustion chamber to cover the effective space of the cylinder head surface about 120 o . And the primary and secondary large-diameter intake valves operated by the driving of the two intake camshafts to open and close the respective intake ports, thereby maximizing the amount of the mixture sucked during intake and greatly improving the engine output.

도 1은 종래의 더블 오버헤드 캠샤프트식 밸브장치가 장착된 엔진의 단면상태도,1 is a cross-sectional view of an engine equipped with a conventional double overhead camshaft valve device;

도 2는 종래의 더블 오버헤드 캠샤프트의 작동을 설명하기 위한 도면,2 is a view for explaining the operation of the conventional double overhead camshaft,

도 3은 본 발명에 따른 트리플 오버헤드 캠샤프트식 밸브장치의 구성을 설명하기 위한 도면,3 is a view for explaining the configuration of a triple overhead camshaft valve device according to the present invention;

도 4는 본 발명에 따른 트리플 오버헤드 캠샤프트의 작동을 설명하기 위한 도면이다.4 is a view for explaining the operation of the triple overhead camshaft according to the present invention.

- 도면의 주요부분에 대한 부호의 설명 --Explanation of symbols for main parts of the drawing

7 - 실린더헤드, 8 - 점화플러그,7-cylinder head, 8-spark plug,

9 - 피스톤, 10 - 연소실,9-piston, 10-combustion chamber,

11 - 크랭크축, 12 - 타이밍밸트,11-crankshaft, 12-timing belt,

22 - 1차 대구경 흡기포트, 24 - 2차 대구경 흡기포트,22-1st large diameter intake port, 24-2nd large diameter intake port,

26 - 배기포트, 28,28` - 대구경 흡기밸브,26-Exhaust Port, 28,28`-Large Diameter Intake Valve,

30 - 1차 흡기용 캠샤프트, 32 - 2차 흡기용 캠샤프트,30-1st intake camshaft, 32-2nd intake camshaft,

34 - 배기밸브, 36 - 배기용 캠샤프트.34-exhaust valve, 36-camshaft for exhaust.

본 발명의 구성 및 작용 효과를 첨부된 예시도면에 의거하여 상세히 설명하면 다음과 같다.Referring to the configuration and operation of the present invention in detail based on the accompanying drawings as follows.

본 발명은 피스톤(9)과 함께 연소실(10)을 이루는 실린더헤드(7)면중 일측면에 1차 대구경 흡기포트(22)가 형성되고, 상면에는 연소실(10)에 수직으로 된 2차 대구경 흡기포트(24)가 형성되며, 타측면에는 연소된 배기가스가 배출되는 배기포트(26)가 형성되고, 상기한 1차 대구경 흡기포트(22)내에는 대구경 흡기밸브(28)가 1차 흡기용 캠샤프트(30)에 의해 개폐되도록 수평 장착되고, 2차 대구경 흡기포트(24)내에는 대구경 흡기밸브(28`)가 2차 흡기용 캠샤프트(32)에 의해 개폐되도록 수직 장착되며, 배기포트(26)에는 배기밸브(34)가 배기용 캠샤프트(36)에 의해 개폐되도록 수평 장착된 차량의 트리플 오버헤드 캠샤프트식 밸브장치이다.In the present invention, the primary large-diameter intake port 22 is formed on one side of the cylinder head 7 constituting the combustion chamber 10 together with the piston 9, and the secondary large-diameter intake air perpendicular to the combustion chamber 10 is formed on the upper surface thereof. A port 24 is formed, and on the other side, an exhaust port 26 through which the burned exhaust gas is discharged is formed, and in the primary large diameter intake port 22, a large diameter intake valve 28 is provided for primary intake. It is horizontally mounted to be opened and closed by the cam shaft 30, and the large diameter intake valve 28` is vertically mounted to be opened and closed by the secondary intake cam shaft 32 in the secondary large diameter intake port 24, and the exhaust port. Reference numeral 26 denotes a triple overhead camshaft valve device of a vehicle mounted horizontally so that the exhaust valve 34 is opened and closed by the exhaust camshaft 36.

또한 상기한 1·2차 흡기용 캠샤프트(30)(32)와 배기용 캠샤프트(36)는 실린더헤드(7)내에 정삼각형의 꼭지점에 해당하는 위치에 장착되되, 상기 1·2차 흡기용 캠샤프트(30)(32)는 크랭크축(11)의 회전력을 전달하는 타이밍밸트(12)에 의해 흡기시 동시에 대구경 흡기밸브(28)(28`)가 개폐되도록 된 것이다.The primary and secondary intake camshafts 30 and 32 and the exhaust camshaft 36 are mounted at positions corresponding to the vertices of the equilateral triangle in the cylinder head 7, Camshaft 30, 32 is to open and close the large-diameter intake valves 28, 28` at the same time when the intake by the timing belt 12 for transmitting the rotational force of the crankshaft (11).

예시도면 도 3은 본 발명에 따른 트리플 오버헤드 캠샤프트식 밸브장치의 구성을 설명하기 위한 도면이고, 도 4는 본 발명에 따른 트리플 오버헤드 캠샤프트의 작동을 설명하기 위한 도면이다.3 is a view for explaining the configuration of the triple overhead camshaft valve apparatus according to the present invention, Figure 4 is a view for explaining the operation of the triple overhead camshaft according to the present invention.

여기서, 본 발명에 따른 트리플 오버헤드 캠샤프트식 밸브장치는 연소실(10)을 이루는 실린더헤드(7)의 면을 흡기량을 극대화할 수 있도록 구조변경과, 3개의 캠샤프트가 사용된 것이다.Here, in the triple overhead camshaft valve device according to the present invention, the structural change and three camshafts are used to maximize the intake amount on the surface of the cylinder head 7 constituting the combustion chamber 10.

그 구조는 피스톤(9)과 함께 연소실(10)을 이루는 실린더헤드(7)면중 일측면에 혼합기가 유입되는 경로인 1차 대구경 흡기포트(22)가 수평으로 하여 형성되고, 상면에는 연소실(10)에 수직으로 된 2차 대구경 흡기포트(24)가 형성되며, 타측면에는 연소된 배기가스가 배출되는 경로인 배기포트(26)가 형성된 것으로, 상면에 수직으로 형성된 1차 대구경 흡기포트(22)와 2차 대구경 흡기포트(24)가 실린더헤드(7)면의 유효공간을 120o정도 활용한 것이다.The structure is formed by horizontally forming a primary large-diameter intake port 22, which is a path through which a mixer flows, on one side of the cylinder head 7 constituting the combustion chamber 10 together with the piston 9, and the combustion chamber 10 on the upper surface. The second large-diameter intake port 24 perpendicular to) is formed, and the other side is formed with an exhaust port 26, which is a path through which the burned exhaust gas is discharged, and the first large-diameter intake port 22 formed perpendicularly to the upper surface. ) And the secondary large-diameter intake port 24 utilize about 120 ° of the effective space on the cylinder head 7 surface.

상기한 대구경 흡기포트(22)(24)는 종래의 흡기포트보다는 직경이 커서 한번에 많은 양의 혼합기가 인입될 수 있도록 함과 더불어 실린더헤드(7)면의 흡기포트형성후 남는 공간의 면적을 최소화되도록 하였다. 이에 점화플러그(8)는 배기포트(26)측으로 자리변경되어진 것이다.The large-diameter intake ports 22 and 24 are larger in diameter than the conventional intake ports so that a large amount of mixer can be introduced at a time and minimize the area of the space remaining after the intake port is formed on the surface of the cylinder head 7. It was made. Accordingly, the spark plug 8 is changed to the exhaust port 26 side.

그리고, 상기와 같이 1·2차 대구경 흡기포트(22)(24)의 구성으로 이를 개폐토록 하는 밸브기구의 위치와 형상도 달라지게 되는데 1차 대구경 흡기포트(22)내에는 대구경 흡기밸브(28)가 1차 흡기용 캠샤프트(30)에 의해 개폐되도록 수평 장착되고, 2차 대구경 흡기포트(24)내에는 대구경 흡기밸브(28`)가 2차 흡기용 캠샤프트(32)에 의해 개폐되도록 수직 장착되며, 배기포트(26)에는 배기밸브(34)가 배기용 캠샤프트(36)에 의해 개폐되도록 수평 장착된다.As described above, the position and shape of the valve mechanism for opening and closing the first and second large-diameter intake ports 22 and 24 are also different. In the primary large-diameter intake port 22, the large-diameter intake valve 28 is formed. ) Is horizontally mounted to be opened and closed by the primary intake camshaft 30, and the large diameter intake valve 28` is opened and closed by the secondary intake camshaft 32 in the secondary large-diameter intake port 24. It is mounted vertically, the exhaust port 26 is mounted horizontally so that the exhaust valve 34 is opened and closed by the exhaust camshaft (36).

또한 상기한 1·2차 흡기용 캠샤프트(30)(32)와 배기용 캠샤프트(36)는 실린더헤드(7)내에 정삼각형의 꼭지점에 해당하는 위치에 장착되되, 상기 1·2차 흡기용 캠샤프트(30)(32)는 크랭크축(11)의 회전력을 전달하는 타이밍밸트(12)에 의해 흡기시 동시에 대구경 흡기밸브(28)(28`)가 개폐되도록 된 것이다.The primary and secondary intake camshafts 30 and 32 and the exhaust camshaft 36 are mounted at positions corresponding to the vertices of the equilateral triangle in the cylinder head 7, Camshaft 30, 32 is to open and close the large-diameter intake valves 28, 28` at the same time when the intake by the timing belt 12 for transmitting the rotational force of the crankshaft (11).

따라서, 본 발명은 연소실(10)을 이루는 실린더헤드(7)면 일측에 수평으로 상면에는 수직으로 형성된 1차 대구경 흡기포트(22)와 2차 대구경 흡기포트(24)가 실린더헤드면의 유효공간을 120o정도 커버하여 남는 공간을 충분히 활용할 수 있도록 형성되어 있고, 상기 각 흡기포트(22)(24)를 2개의 흡기용 캠샤프트(30)(32)의 구동으로 작동하는 1·2차 대구경 흡기밸브(28)(28`)가 개폐시키므로, 흡기시 흡입되는 혼합기양이 극대화되어 엔진출력이 크게 향상되는 것이다.Therefore, in the present invention, the primary large-diameter intake port 22 and the secondary large-diameter intake port 24 formed horizontally on one side of the cylinder head 7 surface forming the combustion chamber 10 and vertically on the upper surface thereof have an effective space on the cylinder head surface. The first and second large diameters are formed so as to cover about 120 ° so as to fully utilize the remaining space, and operate each of the intake ports 22 and 24 by driving the two intake cam shafts 30 and 32. Since the intake valves 28 and 28 'are opened and closed, the amount of the inhaled mixture is maximized and the engine output is greatly improved.

상기한 바와 같이, 본 발명은 크랭크축(11)의 회전으로 상기 회전력을 전달받은 타이밍밸트(12)의 작동으로 2개의 흡기용 캠샤프트(30)(32)가 1·2차 대구경 흡기밸브(28)(28`)를 열어주어 흡기시 연소실(10)로 흡입되는 혼합기양이 극대화되어 엔진출력이 크게 향상되는 효과가 있다.As described above, according to the present invention, two intake cam shafts 30 and 32 are operated by the operation of the timing belt 12 receiving the rotational force by the rotation of the crankshaft 11. 28) (28`) is opened to maximize the amount of the mixture sucked into the combustion chamber 10 at the time of intake has the effect that the engine output is greatly improved.

Claims (2)

피스톤(9)과 함께 연소실(10)을 이루는 실린더헤드(7)면중 일측면에 1차 대구경 흡기포트(22)가 형성되고, 상면에는 연소실(10)에 수직으로 된 2차 대구경 흡기포트(24)가 형성되며, 타측면에는 연소된 배기가스가 배출되는 배기포트(26)가 형성되고, 상기한 1차 대구경 흡기포트(22)내에는 대구경 흡기밸브(28)가 1차 흡기용 캠샤프트(30)에 의해 개폐되도록 수평 장착되고, 2차 대구경 흡기포트(24)내에는 대구경 흡기밸브(28`)가 2차 흡기용 캠샤프트(32)에 의해 개폐되도록 수직 장착되며, 배기포트(26)에는 배기밸브(34)가 배기용 캠샤프트(36)에 의해 개폐되도록 수평 장착된 것을 특징으로 하는 차량의 트리플 오버헤드 캠샤프트식 밸브장치.The primary large diameter intake port 22 is formed on one side of the cylinder head 7 surface forming the combustion chamber 10 together with the piston 9, and the secondary large diameter intake port 24 perpendicular to the combustion chamber 10 is formed on the upper surface thereof. Is formed, and the other side is formed with an exhaust port 26 through which the burned exhaust gas is discharged. In the primary large-diameter intake port 22, the large-diameter intake valve 28 has a primary intake camshaft ( 30 is mounted horizontally so as to be opened and closed by 30, and in the secondary large-diameter intake port 24, the large-diameter intake valve 28` is vertically mounted to be opened and closed by the secondary intake camshaft 32, and the exhaust port 26 The triple overhead camshaft valve apparatus for a vehicle, characterized in that the exhaust valve 34 is horizontally mounted to be opened and closed by the exhaust camshaft (36). 제 1 항에 있어서, 1·2차 흡기용 캠샤프트(30)(32)와 배기용 캠샤프트(36)는 실린더헤드(7)내에 정삼각형의 꼭지점에 해당하는 위치에 장착되되, 상기 1·2차 흡기용 캠샤프트(30)(32)는 크랭크축(11)의 회전력을 전달하는 타이밍밸트(12)에 의해 흡기시 동시에 대구경 흡기밸브(28)(28`)가 개폐되도록 된 것을 특징으로 하는 차량의 트리플 오버헤드 캠샤프트식 밸브장치.The first and second intake camshafts 30 and 32 and the exhaust camshaft 36 are mounted at positions corresponding to the vertices of an equilateral triangle in the cylinder head 7. The car intake cam shafts 30 and 32 are characterized in that the large-diameter intake valves 28 and 28 'are simultaneously opened and closed at the time of intake by the timing belt 12 transmitting the rotational force of the crankshaft 11. Triple overhead camshaft valve mechanism in vehicles.
KR1019960065326A 1996-12-13 1996-12-13 Valve device for triple overhead cam shaft type of automatic vehicle KR100204772B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960065326A KR100204772B1 (en) 1996-12-13 1996-12-13 Valve device for triple overhead cam shaft type of automatic vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960065326A KR100204772B1 (en) 1996-12-13 1996-12-13 Valve device for triple overhead cam shaft type of automatic vehicle

Publications (2)

Publication Number Publication Date
KR19980046898A KR19980046898A (en) 1998-09-15
KR100204772B1 true KR100204772B1 (en) 1999-06-15

Family

ID=19487666

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960065326A KR100204772B1 (en) 1996-12-13 1996-12-13 Valve device for triple overhead cam shaft type of automatic vehicle

Country Status (1)

Country Link
KR (1) KR100204772B1 (en)

Also Published As

Publication number Publication date
KR19980046898A (en) 1998-09-15

Similar Documents

Publication Publication Date Title
JPH07102915A (en) Four-stroke-cycle engine
CA2445461A1 (en) Sohc-type engine
KR100204772B1 (en) Valve device for triple overhead cam shaft type of automatic vehicle
JPS60192812A (en) Valve operating mechanism in internal-conbustion engine
JPH08158933A (en) Four-cycle engine
JPH0742637A (en) Suction device of four cycle engine
KR100305447B1 (en) Intake/exhaust valve device of engine
JPS60142006A (en) Intake/exhaust unit of internal-combustion engine
JPS5791320A (en) Intake device for internal combustion engine
JPS6021446Y2 (en) Internal combustion engine valve train
JPH0754618A (en) Multivalve type internal combustion engine
JPS6024913Y2 (en) internal combustion engine
KR0165811B1 (en) Rotary intake-exhaust valve device of gasoline engine
JPS5979017A (en) Rotary shaft valve engine
JPS59147810A (en) Rotary gas distributor for internal combustion engine
JPH0138241Y2 (en)
JPS6318116A (en) Engine
JPS58107807A (en) Structure of engine
JPH02119605A (en) Valve driving device for four-cycle engine
JPS60169613A (en) Rotary type opening/closing device of intake/discharge port
JPH01253507A (en) Four-cycle engine
JPH01290904A (en) Device for driving valve of four-cycle engine
JPH0237102A (en) Four cycle engine
JPH0545763B2 (en)
JPH02259206A (en) Multiple valve type four cycle engine

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20030211

Year of fee payment: 5

LAPS Lapse due to unpaid annual fee