KR100227913B1 - Valve tappet variable apparatus for internal combustion engine - Google Patents

Valve tappet variable apparatus for internal combustion engine Download PDF

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Publication number
KR100227913B1
KR100227913B1 KR1019970080127A KR19970080127A KR100227913B1 KR 100227913 B1 KR100227913 B1 KR 100227913B1 KR 1019970080127 A KR1019970080127 A KR 1019970080127A KR 19970080127 A KR19970080127 A KR 19970080127A KR 100227913 B1 KR100227913 B1 KR 100227913B1
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South Korea
Prior art keywords
tappet
valve
oil
cam
variable
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KR1019970080127A
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Korean (ko)
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KR19990059913A (en
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공진국
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정몽규
현대자동차주식회사
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    • 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts
    • 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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/245—Hydraulic tappets
    • 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
    • F01L2201/00—Electronic control systems; Apparatus or methods therefor
    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

흡,배기 밸브의 밸브 스템 앤드에 개재되어 캠의 구동에 의하여 태핏의 승강이 가변적으로 작동하게 구조를 개선하기 위하여 캠과 접촉하는 가변 플레이트의 전달수단과,A transmission means of the variable plate interposed between the valve stem and the intake / exhaust valve and contacting the cam to improve the structure so that the lifting and lowering of the tappet is variably operated by driving the cam;

상기 가변 플레이트가 조립되게 태핏의 상부에 조립홀과 측면에 오일홀을 형성한 공간부 조립수단과,A space unit assembling means formed with an assembling hole and an oil hole at the side of the tappet such that the variable plate is assembled;

상기 공간부에 가변 플레이트를 탄지하게 개재한 탄지부재의 탄지수단과,A gripping means of a gripping member interposed between the space part and the variable plate,

상기 공간부의 오일홀과 연통하는 실린더 블럭의 오일 갤러리에 오일 급유를 전자제어장치의 전기적인 신호에 의해 개폐하게 설치한 솔레노이드 밸브의 개폐수단을 포함하여 이루어지는 내연기관의 밸브 태핏 가변장치를 제공하는데 있다.It is to provide a valve tappet variable device of an internal combustion engine comprising an opening and closing means of the solenoid valve installed in the oil gallery of the cylinder block communicating with the oil hole of the space to open and close the oil lubrication by the electrical signal of the electronic control device. .

Description

내연기관의 밸브 태핏 가변장치Valve tappet variable in internal combustion engine

본 발명은 내연기관의 밸브 태핏 가변장치에 관한 것으로, 더욱 상세하게는 흡,배기 밸브의 밸브 스템 앤드에 개재되어 캠의 구동에 의하여 태핏의 승강이 가변적으로 작동하게 구조를 개선한 내연기관의 밸브 태핏 가변장치에 관한 것이다.The present invention relates to a valve tappet variable device of an internal combustion engine, and more particularly, to a valve tappet of an internal combustion engine, which is interposed on a valve stem and end of an intake / exhaust valve to improve the structure of the tappet moving up and down variably by driving a cam. It relates to a variable device.

도4는 종래기술에 따른 태핏을 도시한 도면으로, 태핏(2)은 캠(4)의 양정을 밸브 스템(6)에 전달한 것으로 밸브 리프터라고도 하며, 캠(4)과의 접촉면은 평면인 것과 로울러와 같이 구면인 것이 있다.4 shows a tappet according to the prior art, in which the tappet 2 transfers the head of the cam 4 to the valve stem 6, also called a valve lifter, and the contact surface with the cam 4 is planar; There is something spherical like roller.

상기한 실린더 내에서 연소를 확실히 하기 위해서는 밸브장치의 정확한 작동과 높은 기밀성을 요구하는데, 밸브장치가 갖는 기능이 연료 가스의 흡기와 배기의 흐름을 제어하기 위하여 태핏과 캠과의 간극을 조정하여야 하는데, 이를 충분히 만족시키지 못하여 정숙성과 정비성이 떨어지는 문제점이 있다.Accurate operation and high airtightness of the valve device are required to ensure combustion in the cylinder. The function of the valve device is to adjust the gap between the tappet and the cam to control the flow of fuel gas intake and exhaust. However, there is a problem in that it is not enough to satisfy this lack of quietness and maintainability.

이로 인해 밸브의 밸브 타이밍과 리프트에 영향을 주는 문제점이 있다.This causes a problem that affects the valve timing and lift of the valve.

상기한 바와 같이 이루어지는 종래기술의 문제점을 해소하기 위하여 발명된 것으로, 본 발명의 목적은 흡,배기 밸브의 밸브 스템 앤드에 개재되어 캠의 구동에 의하여 태핏의 승강이 가변적으로 작동하게 구조를 개선한 내연기관의 밸브 태핏 가변장치를 제공하는데 있다.In order to solve the problems of the prior art made as described above, an object of the present invention is an internal combustion that is improved in the structure so that the lifting and lowering of the tappet is variably operated by driving the cam interposed in the valve stem and end of the intake and exhaust valves To provide an engine valve tappet variable device.

도1은 본 발명에 따른 밸브 태핏 가변장치를 도시한 분해 사시도.1 is an exploded perspective view showing a valve tappet variable device according to the present invention.

도2는 본 발명에 따른 밸브 태핏 가변장치를 도시한 측단면도.Figure 2 is a side cross-sectional view showing a valve tappet variable according to the present invention.

도3은 본 발명에 따른 밸브 태핏 가변장치의 리프트를 도시한 도면.Figure 3 shows a lift of the valve tappet variable according to the present invention.

이를 실현하기 위한 본 발명은 캠과 접촉하는 가변 플레이트의 전달수단과,The present invention for realizing this and the transfer means of the variable plate in contact with the cam,

상기 가변 플레이트가 조립되게 태핏의 상부에 조립홀과 측면에 오일홀을 형성한 공간부 조립수단과,A space unit assembling means formed with an assembling hole and an oil hole at the side of the tappet such that the variable plate is assembled;

상기 공간부에 가변 플레이트를 탄지하게 개재한 탄지부재의 탄지수단과,A gripping means of a gripping member interposed between the space part and the variable plate,

상기 공간부의 오일홀과 연통하는 실린더 블럭의 오일 갤러리에 오일 급유를 전자제어장치의 전기적인 신호에 의해 개폐하게 설치한 솔레노이드 밸브의 개페수단을 포함하여 이루어지는 내연기관의 밸브 태핏 가변장치를 제공하는데 있다.It is to provide a valve tappet variable device of an internal combustion engine comprising an opening and closing means of the solenoid valve installed in the oil gallery of the cylinder block communicating with the oil hole of the space to open and close the oil supply by the electrical signal of the electronic control device. .

본 발명은 흡,배기 밸브의 개폐와 캠의 구동을 감지한 전자제어장치에 의해 개폐수단인 솔레노이드 밸브가 오일 갤러리를 막아 오일 급유를 차단하면 공간부에 개재된 탄지부재는 확장된다.According to the present invention, when the solenoid valve, which is an opening / closing means, blocks the oil gallery by blocking the oil gallery by an electronic control device that detects opening and closing of the intake and exhaust valves and the cam is driven, the finger member interposed in the space portion is expanded.

따라서 캠의 회전에 의해 가변 플레이트는 공간부내로 하강하게 되고, 더 이상의 하강이 이루어지지 않을 때 캠에 의해 흡,배기 밸브는 개폐작동을 한다.Accordingly, the variable plate is lowered into the space by the rotation of the cam, and the intake and exhaust valves are opened and closed by the cam when no further lowering is made.

이때 가변 플레이트의 하강변위만큼 캠의 구동력은 전달되지 않아 리프트량은 감소한다.At this time, the driving force of the cam is not transmitted as much as the falling displacement of the variable plate, so the lift amount is reduced.

그리고 반대로 흡,배기 밸브와 캠의 회전을 감지한 전자제어장치가 솔레노이드 밸브를 제어 오일 갤러리를 개구하면, 공간부에 개재된 탄지부재에 푸쉬 작용하여 조립홀의 내경보다 작은 내경을 유지하게 된다.On the contrary, when the electronic control device that detects rotation of the intake / exhaust valve and the cam opens the control oil gallery, the pusher acts on the finger member interposed in the space to maintain an inner diameter smaller than the inner diameter of the assembly hole.

이때 캠의 회전으로 가변 플레이트에 구동력이 작용하면 탄지부재상에 위치한 가변 플레이트를 통해 바로 태핏 자체에 전달되므로서 캠의 가압력과 리프량은 커지게 된다.At this time, when the driving force is applied to the variable plate by the rotation of the cam is transmitted to the tappet itself through the variable plate located on the finger member, the pressing force and the leaf amount of the cam increases.

따라서 태핏을 흡,배기 밸브의 작동을 감지한 전자제어장치에 의해 구조를 가변시킴으로서 밸브 타이밍과 리프트량을 동시에 변위시킬 수 있게 한다.Therefore, by changing the structure of the tappet by the electronic control device that detects the operation of the intake and exhaust valves, the valve timing and the lift amount can be simultaneously displaced.

이하, 본 발명의 바람직한 일 실시예를 첨부한 도면에 의하여 더욱 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.

도1은 본 발명에 따른 밸브 태핏 가변장치를 도시한 분해 사시도이고, 도2는 본 발명에 따른 밸브 태핏 가변장치를 도시한 측단면도로, 캠(10)과 접촉하는 전달수단인 가변 플레이트(12)를 구비하고 있으며, 이 가변 플레이트(12)가 조립되게 태핏(14)의 상부에 조립홀(16)과 측면에 오일홀(18)을 조립수단인 공간부(20)에 형성하고 있다.1 is an exploded perspective view showing a valve tappet variable device according to the present invention, Figure 2 is a side cross-sectional view showing a valve tappet variable device according to the present invention, a variable plate 12 which is a transmission means for contacting the cam 10 And an oil hole 18 on the side of the tappet 14 and an oil hole 18 on the side of the tappet 14 so that the variable plate 12 is assembled.

상기 공간부(20)에 가변 플레이트(12)를 탄지하게 탄지수단인 탄지부재(22)를 개재하고 있다.The space member 20 is interposed with a finger member 22 which is a fingering means to hold the variable plate 12.

탄지부재(22)는 4곳에 위하여 지지하는 스프링(24)과, 양측 오일홀(18)측에 개재되어 오일의 급유 유무에 따라 전,후진하게 리턴스프링(25)으로 연결한 스톱퍼(26)로 이루어지고 있다.The finger member 22 is a spring 24 for supporting four places and a stopper 26 interposed between both oil holes 18 and connected to the return spring 25 forward and backward depending on whether oil is supplied. It is done.

상기 공간부(20)의 오일홀(18)과 연통하는 실린더 블럭(28)의 오일 갤러리(30)에 오일 급유를 전자제어장치(32)의 전기적인 신호에 의해 개폐하게 개폐수단인 솔레노이드 밸브(34)를 설치하여 이루어지고 있다.Solenoid valve which is an opening and closing means for opening and closing the oil supply to the oil gallery 30 of the cylinder block 28 in communication with the oil hole 18 of the space 20 by an electrical signal of the electronic control device 32 ( 34) is done by installing.

상기한 바와 같이 이루어지는 본 발명 작용을 설명하면, 흡,배기 밸브(도시생략)의 개폐와 캠(10)의 구동을 감지한 전자제어장치(32)에 의해 개폐수단인 솔레노이드 밸브(34)가 오일 갤러리(30)를 막아 오일 급유를 차단하면 공간부(20)에 개재된 탄지부재(22)의 스프링(24)은 탄압되고 스톱퍼(26)는 양측으로 확장된다.Referring to the operation of the present invention as described above, the solenoid valve 34 which is the opening and closing means by the electronic control device 32 that detects the opening and closing of the intake and exhaust valves (not shown) and the drive of the cam 10 is oil When the oil supply is blocked by blocking the gallery 30, the spring 24 of the support member 22 interposed in the space 20 is suppressed and the stopper 26 extends to both sides.

따라서 캠(10)의 회전에 의해 가변 플레이트(12)는 공간부(20)내로 하강하게 되고, 더 이상의 하강이 이루어지지 않을 때 캠(12)에 의해 흡,배기 밸브는 개폐작동을 한다.Accordingly, the variable plate 12 is lowered into the space 20 by the rotation of the cam 10, and the intake and exhaust valves are opened and closed by the cam 12 when no further lowering is made.

이때 가변 플레이트(12)의 하강변위만큼 캠(10)의 구동력은 전달되지 않아 리프트량은 감소한다.At this time, the driving force of the cam 10 is not transmitted as much as the falling displacement of the variable plate 12, so that the lift amount is reduced.

그리고 반대로 흡,배기 밸브와 캠의(10) 회전을 감지한 전자제어장치(32)가 솔레노이드 밸브(34)를 제어 오일 갤러리(30)를 개구하면, 공간부(20)에 개재된 탄지부재(22)의 스톱퍼(26)에 푸쉬 작용하면 리턴스프링(25)을 탄압하면서 중앙으로 진입하게 되므로서 조립홀(16)의 내경보다 작은 내경을 유지하게 된다.On the contrary, when the electronic control device 32 that detects the rotation of the intake / exhaust valve and the cam 10 opens the solenoid valve 34 to the control oil gallery 30, the anti-stick member interposed in the space 20 ( When the pusher 26 of the stopper 26 is pushed, the return spring 25 is pressed into the center while maintaining the inner diameter smaller than the inner diameter of the assembly hole 16.

이때 캠(10)의 회전으로 가변 플레이트(12)에 구동력이 작용하면 탄지부재(20)의 스프링(24)과 스톱퍼(26)상에 위치한 가변 플레이트(12)를 통해 바로 태핏 (14) 자체에 전달되므로서 캠(10)의 가압력과 리프량은 커지게 된다.(도3참조)At this time, when the driving force acts on the variable plate 12 by the rotation of the cam 10, the tappet 14 itself directly through the variable plate 12 located on the spring 24 and the stopper 26 of the finger member 20. As it is transmitted, the pressing force and the leaf amount of the cam 10 become large (see Fig. 3).

따라서 태핏(14)을 흡,배기 밸브의 작동을 감지한 전자제어장치(32)에 의해 구조를 가변시킴으로서 밸브 타이밍과 리프트량을 동시에 변위시킬 수 있게 한다.Therefore, by changing the structure of the tappet 14 by the electronic control device 32 that detects the operation of the intake and exhaust valves, the valve timing and the lift amount can be simultaneously displaced.

상기한 흡,배기 밸브의 리프량을 제어시 태핏의 구조를 가변시킴으로서 캠의 지지유지와 리프량을 동시 변경할 수 있어 엔진 성능 및 배기가스를 저감하게 되는 발명이다.By controlling the structure of the tappet when the leaf amount of the intake / exhaust valve is controlled, the cam support and the leaf amount can be changed at the same time, thereby reducing engine performance and exhaust gas.

Claims (2)

캠과 접촉하는 가변 플레이트의 전달수단과,A transmission means of the variable plate in contact with the cam, 상기 가변 플레이트가 조립되게 태핏의 상부에 조립홀과 측면에 오일홀을 형성한 공간부 조립수단과,A space unit assembling means formed with an assembling hole and an oil hole at the side of the tappet such that the variable plate is assembled; 상기 공간부에 가변 플레이트를 탄지하게 개재한 탄지부재의 탄지수단과,A gripping means of a gripping member interposed between the space part and the variable plate, 상기 공간부의 오일홀과 연통하는 실린더 블럭의 오일 갤러리에 오일 급유를 전자제어장치의 전기적인 신호에 의해 개폐하게 설치한 솔레노이드 밸브의 개페수단을 포함하여 이루어짐을 특징으로 하는 내연기관의 밸브 태핏 가변장치.A valve tappet variable device of an internal combustion engine, characterized in that it comprises opening and closing means of a solenoid valve installed to open and close the oil supply to the oil gallery of the cylinder block communicating with the oil hole of the space. . 청구항 1에 있어서, 탄지부재는 4곳에 위하여 지지하게 설치한 스프링과, 공간부의 양측 오일홀측에 개재되어 오일의 급유 유무에 따라 전,후진하게 리턴스프링으로 연결한 설치되는 스톱퍼로 이루어진 내연기관의 밸브 태핏 가변장치.The valve of an internal combustion engine according to claim 1, wherein the support member is composed of a spring installed to support the four places, and a stopper installed at both oil holes on both sides of the space and connected to the return spring forward and backward according to the oil supply. Tappet Variable Device.
KR1019970080127A 1997-12-31 1997-12-31 Valve tappet variable apparatus for internal combustion engine KR100227913B1 (en)

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KR1019970080127A KR100227913B1 (en) 1997-12-31 1997-12-31 Valve tappet variable apparatus for internal combustion engine

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Application Number Priority Date Filing Date Title
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KR100931038B1 (en) * 2007-10-05 2009-12-10 현대자동차주식회사 Variable tappet
US8079214B2 (en) 2007-12-14 2011-12-20 Hyundai Motor Company Integrally formed engine exhaust manifold and cylinder head

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