KR19980044662A - Engine Intake Valve Mounting Structure - Google Patents

Engine Intake Valve Mounting Structure Download PDF

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Publication number
KR19980044662A
KR19980044662A KR1019960062766A KR19960062766A KR19980044662A KR 19980044662 A KR19980044662 A KR 19980044662A KR 1019960062766 A KR1019960062766 A KR 1019960062766A KR 19960062766 A KR19960062766 A KR 19960062766A KR 19980044662 A KR19980044662 A KR 19980044662A
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KR
South Korea
Prior art keywords
valve
combustion chamber
intake
cylinder head
inlet
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KR1019960062766A
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Korean (ko)
Inventor
박종일
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김영귀
기아자동차 주식회사
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Priority to KR1019960062766A priority Critical patent/KR19980044662A/en
Publication of KR19980044662A publication Critical patent/KR19980044662A/en

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Abstract

본 발명은 자동차 기관의 흡기밸브 장착구조에 관한 것으로, 기관의 출력이 향상되도록 하기 위해, 연소실이 형성되는 실린더헤드(20)에 흡기구가 연소실에 연통되게 형성되는 것에 있어서, 상기 흡기구가 연소실의 일측 형상으로 형성되며, 상기 흡기구에 개폐되는 밸브(60)의 상단부 외주면에 돌출부가 측방향으로 형성되고, 상기 밸브의 돌출부가 미끄럼이동 하도록 슬라이드홈이 형성된 밸브가이드(61)가 상기 실린더헤드에 고정되도록 구성하여, 흡입구가 실린더헤드(20) 상에서 가능한 최대로 형성되므로 흡기행정시 연소실의 부압에 의해 연소용공기가 흡입되게 되면, 시간당 흡입되는 흡입공기량이 최대가 되도록 하며, 밸브가이드(61)는 밸브(60)의 돌출부가 슬라이드홈을 따라 미끄러지도록 하므로 밸브(60)의 회전을 방지하여 밸브(60)가 정확하게 흡기구에 개폐되도록 하는 기관의 흡기밸브 장착구조이다.The present invention relates to an intake valve mounting structure of an automobile engine, in order to improve the output of the engine, the inlet is formed in communication with the combustion chamber in the cylinder head 20 in which the combustion chamber is formed, the inlet is one side of the combustion chamber Is formed in a shape, the projection is formed in the lateral direction on the outer peripheral surface of the upper end of the valve 60 to be opened and closed to the inlet port, so that the valve guide 61 formed with a slide groove so that the projection of the valve slides to be fixed to the cylinder head When the intake port is formed to the maximum possible on the cylinder head 20, when the combustion air is sucked by the negative pressure of the combustion chamber during the intake stroke, the amount of intake air sucked per hour is maximized, the valve guide 61 is a valve Since the protrusion of the (60) slides along the slide groove, it prevents the rotation of the valve (60) so that the valve (60) is accurate An intake valve of the engine mounting structure for a mechanism to be opened and closed.

Description

기판의 흡기밸브 장착구조Board Intake Valve Mounting Structure

본 발명은 자동차 기관의 흡기밸브 장착구조에 관한 것으로, 흡기밸브의 장착구조를 개선하여 흡입면적이 극대화되도록 하므로 기관의 출력이 향상되도록 한 것에 관한 것이다The present invention relates to an intake valve mounting structure of an automobile engine, and improved output structure of the intake valve so as to maximize the suction area.

일반적으로 DOHC(double over head cam)기관은 도 1과 도 2에 도시되는 바와 같이, 흡기구와 배기구가 연소실과 연통되게 형성되는 실린더헤드(20)가 피스톤(30)이 장착되는 실린더블록(10)의 상부에 장치되어, 실린더헤드(20)의 연소실에 흡기구와 배기구를 각기 일정 주기로 개폐하여 주는 한쌍의 밸브(60)가 코일스프링(50)에 상향으로 탄지되고, 캠축의 캠(40)에 의해 개폐 가능하게 밀착되며, 실린더헤드(20)의 연소실에 점화풀러그(70)가 장착되어 있다.In general, a double over head cam (DOHC) engine, as shown in Figs. 1 and 2, the cylinder block 10, the cylinder head 20 is formed in which the inlet and exhaust ports are in communication with the combustion chamber, the piston 30 is mounted And a pair of valves 60 mounted on the upper portion of the cylinder head 20 to open and close the inlet and exhaust ports in the combustion chamber of the cylinder head 20 at regular intervals, and are supported by the coil spring 50 upwards. In close contact with the opening and closing, the ignition pull lug 70 is attached to the combustion chamber of the cylinder head 20.

이와같이 구성되는 기관은 흡기행정시 흡기구가 열리고 연소실의 부압에 의해 연소용 공기와 연료가 흡기구를 통해 연소실로 흡입되며, 흡입된 공기및 연료가 압축된 상태에서 점화풀러그(70)에서 점화되는 전기불꽃에 의해 연소된다. 한편, 연소실에서 연소에 의해 발생되는 동력이 피스톤(30)을 구동하고, 피스톤(30)에 의해 크랭크축이 구동되어 회전력을 얻게 되며, 크랭크축에 의해 구동되는 캠축이 캠(40)을 통해 밸브(60)를 구동하여, 일정 주기로 밸브(60)가 연소실로 연통되는 흡기구와 배기구를 개폐하여 주므로, 새로운 혼합기를 흡입하고 연소된 가스가 배기 되도록 한다.In the engine configured as described above, the inlet port is opened during intake administration, and combustion air and fuel are sucked into the combustion chamber through the inlet port by the negative pressure of the combustion chamber, and the electricity that is ignited by the ignition pull lug 70 in the compressed air and fuel is compressed. It is burned by the flame. On the other hand, the power generated by the combustion in the combustion chamber drives the piston 30, the crankshaft is driven by the piston 30 to obtain a rotational force, the camshaft driven by the crankshaft valve through the cam 40 By driving 60, the valve 60 opens and closes the inlet and exhaust ports communicating with the combustion chamber at regular intervals, so that a new mixer is sucked in and the burned gas is exhausted.

여기에서, 종래 기관의 흡기구는 2개의 구멍으로 분리 형성되어 연소실에 연통되고, 각기 밸브가 개폐 가능하게 장치되며, 외측이 흡기다기관에 의해 공기청정기에 연통되어 있다.Here, the intake port of a conventional engine is formed into two holes and communicates with a combustion chamber, each valve is provided so that opening and closing is possible, and the outside is in communication with an air cleaner by the intake manifold.

이러한 종래 기관의 흡기구는, 2개의 구멍이 연소실에 연통되도록 하여 빠른시간에 많은 량의 연소공기 및 연료를 연소실로 흡입하도록 하고 있다The intake port of such a conventional engine allows two holes to communicate with the combustion chamber so that a large amount of combustion air and fuel can be sucked into the combustion chamber in a short time.

이러한 종래 기관의 흡기구는, 흡기구의 구멍을 2개로 형성하여 빠른시간에 많은 량의 연소공기및 연료를 연소실로 흡입하도륵 하므로 기관의 성능이 향상되도륵 하고 있으나 흡기구 크기의 한계로 인해 출력증강의 제한이 따르는 문제점이 있었다.The intake port of such a conventional engine has two holes in the intake port, which allows a large amount of combustion air and fuel to be sucked into the combustion chamber in a short time, thereby improving the performance of the engine. There was a problem with limitations.

본 발명은 실린더헤드의 흡기구 및 흡기구에 장착되는 밸브의 구조를 개선하여 시간당 흡입공기의 량이 증가하도록 하므로 기관의 출력이 향상되도록 하는데 그 목적이 있다.The present invention is to improve the structure of the valve mounted on the inlet and inlet of the cylinder head to increase the amount of intake air per hour is to improve the output of the engine.

도 1은 종래 기관의 개략적인 단면도1 is a schematic cross-sectional view of a conventional engine

도 2는 종래 기관의 흡기밸브 장착구조를 나타내는 단면도Figure 2 is a cross-sectional view showing the intake valve mounting structure of a conventional engine

도 3은 본 발명 실린더헤드의 밸브 장착구조를 나타내는 평면도Figure 3 is a plan view showing the valve mounting structure of the present invention cylinder head

도 4는 본 발명 흡기밸브의 장착구조를 나타내는 횡단면도Figure 4 is a cross-sectional view showing the mounting structure of the intake valve of the present invention

도 5는 본 발명 흡기밸브의 장착구조를 나타내는 부분 분해사시도Figure 5 is a partially exploded perspective view showing the mounting structure of the intake valve of the present invention

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

10 : 실린더블록20 : 실린더헤드10: cylinder block 20: cylinder head

30 : 피스톤40 : 캠30: piston 40: cam

60 : 밸브61 : 밸브가이드60: valve 61: valve guide

먼저, 본 발명도 도 1과 도 3 내지 도 5에 도시되는 바와같이, 흡기구와 배기구가 연소실과 연통되게 형성되는 실린더헤드(20)가 피스톤(30)이 장착되는 실린더블록(10)의 상부에 장치되어, 실린더헤드(20)의 연소실에 흡기구와 배기구를 각기 일정 주기로 개폐하여 주는 밸브(60)가 코일스프링(50)에 상향으로 탄지되고, 캠축의 캠(40)에 의해 개폐 가능하게 밀착되며, 실린더헤드(20)의 연소실에 점화풀러그(70)가 장착된다.First, as shown in FIGS. 1 and 3 to 5, the cylinder head 20 having the inlet port and the exhaust port communicating with the combustion chamber is disposed on the upper portion of the cylinder block 10 on which the piston 30 is mounted. The valve 60, which opens and closes each of the inlet and exhaust ports in the combustion chamber of the cylinder head 20 at regular intervals, is supported by the coil spring 50 upwardly, and is in close contact with the camshaft cam 40. The ignition pull lug 70 is mounted in the combustion chamber of the cylinder head 20.

단, 본 발명은 실린더헤드(20)의 연소실 일측에 연소실 일측형상으로 흡입구가 형성되고, 연소실 타측에 연소실 타측형상으로 배기구가 형성되어, 상기 흡기구 및 배기구에 흡기구 및 배기구형상으로 형성된 밸브(60)가 개폐 가능하게 장착되며, 밸브(60)의 상단부 외주면에 돌출부가 축방향으로 형성되고 밸브가이드(61)에 슬라이드홈이 형성되어 밸브의 돌출부가 상기 밸브가이드(61)의 슬라이드홈에 미끄럼 가능하게 끼워짐을 그 기술적 구성상의 기본 특징으로 한다However, in the present invention, the inlet port is formed on one side of the combustion chamber of the cylinder head 20 in one side of the combustion chamber, and the outlet port is formed on the other side of the combustion chamber in the other side of the combustion chamber, and the inlet port and the exhaust port are formed in the inlet port and the exhaust port 60. Is mounted to open and close, the protrusion is formed in the axial direction on the outer circumferential surface of the upper end of the valve 60 and the slide groove is formed in the valve guide 61 so that the protrusion of the valve can slide in the slide groove of the valve guide 61 Makes fitting a basic feature of its technical construction

이와같이 구성되는 본 발명은, 밸브(60) 및 흡입구의 구조가 개선되어 흡입구가 실린더헤드(20) 상에서 가능한 최대로 형성되므로 흡기행정시 밸브(60)가 열려 연소실의 부압에 의해 흡기구를 통해 연소용공기가 흡입되게 되면, 시간당 흡입되는 흡입공기량이 최대가 되도록 한다. 한편, 밸브가이드(61)는 밸브(60)의 돌출부가 슬라이드홈을 따라 미끄러지도록 하므로 밸브(60)의 회전을 방지하여 개선된 밸브 구조가 정확하게 흡기구에 개폐되도록 한다In the present invention configured as described above, since the structure of the valve 60 and the intake port is improved, and the intake port is formed to the maximum possible on the cylinder head 20, the valve 60 is opened during intake stroke for combustion through the intake port by the negative pressure of the combustion chamber. When air is sucked in, the amount of suction air sucked in per hour is maximized. On the other hand, the valve guide 61 allows the protrusion of the valve 60 to slide along the slide groove, thereby preventing rotation of the valve 60 so that the improved valve structure can be opened and closed to the intake port accurately.

상기와 같이 구성되고 작동되는 본 발명은, 밸브 및 흡기구의 구조가 개선되어 시간당 흡기량이 최대가 되도록 하므로 기관의 출력이 증강되도록 하는 효과를 갖는다.The present invention configured and operated as described above has the effect of improving the output of the engine since the structure of the valve and the intake port is improved to maximize the intake amount per hour.

Claims (1)

연소실이 형성되는 실린더헤드(20)에 흡기구가 연소실에 연통되게 형성되는 것에 있어서, 상기 흡기구가 연소실의 일측 형상으로 형성되며, 상기 흡기구에 개폐되는 밸브(60)의 상단부 외주면에 돌출부가 축방향으로 형성되고, 상기 밸브의 돌출부가 미끄럼이동 하도륵 슬라이드홈이 형성된 밸브가이드(61)가 상기 실린더헤드에 고정됨을 특징으로 하는 기관의 흡기밸브 장착구조.In the inlet port is formed in communication with the combustion chamber in the cylinder head 20 is formed in the combustion chamber, the inlet is formed in one side shape of the combustion chamber, the projection in the axial direction on the outer peripheral surface of the upper end of the valve 60 which is opened and closed to the inlet And a valve guide (61) in which the protrusion of the valve is provided with a slide groove to slide the protruding portion, wherein the valve guide (61) is fixed to the cylinder head.
KR1019960062766A 1996-12-07 1996-12-07 Engine Intake Valve Mounting Structure KR19980044662A (en)

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KR1019960062766A KR19980044662A (en) 1996-12-07 1996-12-07 Engine Intake Valve Mounting Structure

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KR1019960062766A KR19980044662A (en) 1996-12-07 1996-12-07 Engine Intake Valve Mounting Structure

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KR19980044662A true KR19980044662A (en) 1998-09-05

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