KR20130015363A - Oil control valve - Google Patents

Oil control valve Download PDF

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Publication number
KR20130015363A
KR20130015363A KR1020110077316A KR20110077316A KR20130015363A KR 20130015363 A KR20130015363 A KR 20130015363A KR 1020110077316 A KR1020110077316 A KR 1020110077316A KR 20110077316 A KR20110077316 A KR 20110077316A KR 20130015363 A KR20130015363 A KR 20130015363A
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South Korea
Prior art keywords
oil
air
valve
control valve
engine
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KR1020110077316A
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Korean (ko)
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KR101693888B1 (en
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황순현
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현대자동차주식회사
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/32—Means for additional adjustment of the rate of flow

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

Abstract

PURPOSE: An oil control valve is provided to improve NVH(Noise, Vibration, Harshness) by preventing abnormal noise caused by air remained in a valve device as the residual air is discharged before starting an engine. CONSTITUTION: An oil control valve comprises a valve body(10) and a relief valve(20). The pressure of oil supplied to the inside an engine is delivered when starting the engine so that the valve body reduces pressure exceeding a set level. The relief valve is formed on the valve body, thereby forming an air flow path. The air pushed back by the pressure of the oil delivered to the valve body is discharged to the outside through the air flow path.

Description

오일컨트롤밸브{Oil Control Valve} Oil Control Valve {Oil Control Valve}

본 발명은 오일컨트롤밸브에 관한 것으로, 특히 엔진시동시 공급되는 오일을 이용해 오일유로에 잔존하는 내부 공기를 완전히 제거할 수 있는 오일컨트롤밸브에 관한 것이다.The present invention relates to an oil control valve, and more particularly, to an oil control valve capable of completely removing internal air remaining in an oil passage using oil supplied at engine start.

일반적으로 엔진 구동시 윤활이 제대로 이루어지지 않으면 엔진이 즉시 오류(fail)상태를 일으키는 것 같이, 엔진에서 엔진오일은 매우 중요한 역할을 담당하게 된다.In general, engine oil plays a very important role in the engine, such as if the engine fails immediately when the engine is not properly lubricated.

상기와 같은 오일의 주요 기능으로서, 캠샤프트와 크랭크 샤프트와 같은 주요 구동부의 마찰손실 최소화를 통한 윤활로 성능향상과 피스톤과 같은 주요 내구 부품의 냉각을 담당함은 물론, 엔진 내부를 순환하며 엔진내부에 잔존하는 이물질을 제거함으로써 이물질로부터 주요 부품을 보호하게 된다.As the main function of the oil, the lubrication through minimizing the friction loss of the main drive unit such as the camshaft and the crankshaft is responsible for improving the performance and cooling the main durable parts such as the piston, as well as circulating the engine inside the engine By removing the foreign matter remaining in the system, the main parts are protected from the foreign matter.

최근 들어 자동차 시장은 성능은 높으면서 연비까지 우수한 엔진을 요구하고 있는 실정이다.Recently, the automotive market is demanding an engine with high performance and fuel economy.

일례로, 엔진의 회전영역에 따라 밸브의 개폐시기 및 개폐량을 조절해 오버랩 타이밍을 제어함으로써 실린더 충전량과 잔류 가스량에 대한 조절이 가능하도록 하는 가변 밸브 타이밍(VVT; Variable Valve Timing) 또는 연속 가변 밸브 타이밍(CVVT; Continuously Variable Valve Timing)이나, 또는 저부하시 일부 실린더를 죽여서 연비를 도모하는 CDA이나, 또는 가변 밸브 리프트(VVL; Variable ValveLift)나 연속 가변 밸브 리프트(CVVL; Continuously Variable Valve Lift) 등의 기술을 예로 들 수 있다.For example, variable valve timing (VVT) or continuous variable valve to adjust the cylinder filling amount and residual gas amount by controlling the timing of opening and closing the valve according to the rotational area of the engine to control the overlap timing. Continuously Variable Valve Timing (CVVT), or CDA for fuel efficiency by killing some cylinders at low load, or Variable Valve Lift (VVL) or Continuously Variable Valve Lift (CVVL) For example, the technique of.

상기와 같은 CVVT, CDA, CVVL에서는 통상 캠의 열리고 닫히는 시기와 리프트의 높이 조절이 대부분 설정된 유압에 의해 작동되므로, 만약 요구되는 유압의 미확보나 유압의 불안정시 작동 신뢰성도 크게 저하될 수밖에 없다.In the CVVT, CDA, CVVL as described above, since the opening and closing timing of the cam and the height adjustment of the lift are mostly operated by the set hydraulic pressure, if the required hydraulic pressure is not secured or the hydraulic instability is inevitably deteriorated.

그러므로, 상기와 같은 CVVT, CDA, CVVL가 실차적용되면, 엔진오일은 이들을 필요한 조건 및 시점에 적절하게 구동시키 위한 작동매체로서의 역할도 빼놓을 수 없는 중요한 부분이다.Therefore, when CVVT, CDA, and CVVL are actually applied, engine oil is an important part as a working medium for driving them properly at the required conditions and timing.

이를 위한 선결 조건으로서 주요 베어링 면의 윤활이 이루어지지 않는 무윤활 운전기간을 가져오는 오일 충진시간의 지연을 해소하여야 함은 물론, 적정 유압의 유지를 통해 오일 유압 이용시 작동 신뢰성을 확보하는 것이 무었보다도 중요하게 된다.As a prerequisite for this, it is necessary to solve the delay of oil filling time which leads to a non-lubrication operation period without lubrication of the main bearing surface, and to ensure operation reliability when using oil hydraulic pressure by maintaining proper hydraulic pressure. It becomes important.

이를 위해, 오일경로에는 오일 컨트롤 밸브가 설치됨으로써 엔진 시동시 엔진으로 공급되는 오일압력을 적정한 상태로 유지시켜주는 작용을 하게 된다.To this end, the oil path is installed in the oil path to maintain the proper oil pressure supplied to the engine when the engine starts.

즉, 오일 컨트롤 밸브는 오일을 엔진으로 신속히 공급시켜 무윤활 운전조건을 최소화시키고, 동시에 필요이상의 유압상승시 오일을 배출시킴으로써 유압을 항상 적정하게 유지해 주는 작용을 하게 된다.In other words, the oil control valve is to supply oil to the engine quickly to minimize the non-lubricated operating conditions, and at the same time to discharge the oil when the oil pressure rises more than necessary to maintain the proper hydraulic pressure.

도 4는 통상적인 오일컨트롤밸브로서, 엔진의 오일유로내 설치된 단면구조를 나타낸다.Figure 4 is a conventional oil control valve, showing a cross-sectional structure installed in the oil flow path of the engine.

도시된 바와 같이, 오일컨트롤밸브는 오일유로바디(100)의 밸브홀에 밸브바디(200)가 설치됨으로써 오일유로바디(100)의 오일유입유로(102)에 위치되어진다.As shown, the oil control valve is located in the oil inflow passage 102 of the oil flow path body 100 by installing the valve body 200 in the valve hole of the oil flow path body (100).

상기 밸브바디(200)는 밸브홀에 밀착된 밀폐바디(202)에서 오일유입유로(102)쪽으로 돌출연장되고 그 내부로 오일통로를 형성해 오일유입유로(102)와 연통되어진 오일출구단(201)을 형성한 구조로 이루어진다.The valve body 200 extends from the sealed body 202 in close contact with the valve hole toward the oil inflow passage 102 and forms an oil passage therein so as to communicate with the oil inflow passage 102. It is made of a structure formed.

상기 오일출구단(201)의 오일통로에는 오일유입유로(102)로 들어온 오일압력에 의해 밀려나는 체크밸브(203)가 설치되어진다.The oil passage of the oil outlet stage 201 is provided with a check valve 203 which is pushed out by the oil pressure entering the oil inflow passage (102).

통상, 오일컨트롤밸브가 설치된 부위로는 오일유로의 기밀이 필수적으로 요구되고, 이를 위해 오일컨트롤밸브 부위로는 플러그(Plug)나 또는 스틸볼(Steel Ball)이 적용되어진다.In general, airtightness of the oil flow path is essential to the site where the oil control valve is installed, and for this purpose, a plug or a steel ball is applied to the oil control valve site.

엔진시동을 걸지 않고 장기간 방치상태에 놓이게 되면, 엔진내 오일은 자중에 의해 오일팬으로 내려감으로써 오일유로내 공기 잔존율이 크게 높아질 수밖에 없다.If the engine is left unattended for a long time without starting the engine, the oil remaining in the engine is lowered into the oil pan due to its own weight, and the air residual ratio in the oil passage is inevitably increased.

상기와 같이 오일유로내 공기가 있는 상태에서 엔진시동을 걸게 되면, 엔진내부 오일충진 속도가 오일유로내 잔존공기로 인해 저하됨으로써 무윤활 운전구간을 발생시킬 수 있게 된다. As described above, when the engine is started in the presence of air in the oil passage, the engine oil filling speed is lowered due to the remaining air in the oil passage, thereby generating a lubrication-free operation section.

그러므로, 오일유로내 잔존공기를 빼내어야 하지만, 전술한 바와 같이 플러그(Plug)나 또는 스틸볼(Steel Ball)을 이용해 기밀처리됨으로써 오일유로내 공기 배출이 어려울 수밖에 없다.Therefore, the remaining air in the oil passage must be drawn out, but air leakage in the oil passage is difficult due to hermetic treatment using a plug or a steel ball as described above.

도 4에는 밸브바디(200)가 위치된 오일유입유로(102)에 공기(A)가 존재함으로써, 엔진시동후 오일컨트롤밸브의 밸브바디(200)쪽으로 충진되는 오일(O)의 흐름이 방해받는 상태를 나타낸다.In FIG. 4, the air A is present in the oil inflow passage 102 in which the valve body 200 is located, thereby preventing the flow of the oil O filled into the valve body 200 of the oil control valve after starting the engine. Indicates the state.

상기와 같이 오일컨트롤밸브부위로 충진된 공기(A)는 밸브바디(200)로 유입되는 오일(O)을 저지함으로써 엔진쪽으로 공급되는 오일의 속도를 저하시킬 수밖에 없고, 오일(O)의 속도 저하는 엔진구동이 이루어진 상태에서 주요 베어링면의 윤활을 위한 오일 미흡 상태인 무윤활 운전구간을 발생시켜 줌으로써 윤활부족 현상을 초래하게 된다.As described above, the air (A) filled in the oil control valve portion has to lower the speed of the oil supplied to the engine by blocking the oil (O) flowing into the valve body 200, the speed of the oil (O) is lowered This causes lubrication deficiency by generating a non-lubricating operation section that is insufficient oil for lubrication of the main bearing surface in the engine driving state.

윤활부족 심화는 유압을 이용하는 각종 유압 기구들의 오작동과 소음발생을 가져올 뿐만 아니라, 특히 윤활부족에 의한 베어링 소착시 엔진 고장(Fail)과 같이 심각한 현상을 야기할 수 있게 된다.
Intensive lack of lubrication not only causes malfunctions and noises of various hydraulic mechanisms using hydraulic pressure, but also causes serious phenomena such as engine failure when bearings are stuck due to lack of lubrication.

국내특허공개 10-2009-0036823(2009.04.15)는 CDA, VVL 등의 기구 작동을 위한 작동오일을 공급하는 오일컨트롤 밸브에 관한 것이며, 이는 도 3내지 도 6및 3쪽 식별번호27내지 4쪽 식별번호37내지 식별번호38 참조.Korean Patent Publication No. 10-2009-0036823 (2009.04.15) relates to an oil control valve for supplying the operating oil for the operation of the instrument such as CDA, VVL, etc., which is the identification number 27 to 4 page 3 to 6 and 3 See identification numbers 37-38.

이에 상기와 같은 점을 감안하여 발명된 본 발명은 엔진으로 공급되는 엔진오일의 흐름을 이용해 오일경로내 잔존된 공기를 먼저 빼내줌으로써, 어떠한 경우에서 엔진 시동을 걸더라도 엔진으로 공급되는 엔진오일속도저하를 근본적으로 막아 무윤활 운전구간을 최소화 할 수 있는 오일컨트롤밸브를 제공하는데 목적이 있다. Accordingly, the present invention in view of the above point by using the flow of the engine oil supplied to the engine by first extracting the remaining air in the oil path, the engine oil speed is supplied to the engine even if the engine is started in any case The aim is to provide an oil control valve that can fundamentally prevent oil-free operation intervals.

또한, 본 발명은 엔진오일의 과도한 압력상승시 항상 적정한 오일압력을 유지시킬 수 있는 기본 작용에 더해 잔존공기 배출작용을 구현하더라도, 설계변경등을 최소화 할 수 있는 오일컨트롤밸브를 제공하는데 목적이 있다.
In addition, an object of the present invention is to provide an oil control valve that can minimize the design change, even if the residual air discharge action in addition to the basic action that can always maintain the proper oil pressure when the excessive pressure rise of the engine oil. .

상기와 같은 목적을 달성하기 위한 본 발명의 오일컨트롤밸브는 엔진시동시 엔진내부로 공급되는 오일의 압력이 가해져 설정이상의 압력을 빼내주는 밸브바디부위로 구비되어, 상기 밸브바디부위로 가해지는 오일의 압력으로 밀려나는 공기를 밖으로 빼내주는 공기흐름경로를 형성해주는 릴리프밸브가 The oil control valve of the present invention for achieving the above object is provided with a valve body portion to extract the pressure above the set by applying the pressure of the oil supplied to the engine when the engine is started, the oil of the oil applied to the valve body portion Relief valves form an airflow path that draws out the air pushed out by pressure.

더 포함된 것을 특징으로 한다.It is characterized by further included.

상기 릴리프밸브는 오일유로바디의 오일유입유로에 연결된 밸브홀로 설치되어진 상기 밸브바디의 뒤쪽에서 상기 밸브홀에 위치되어진다.The relief valve is located in the valve hole at the rear of the valve body which is installed as a valve hole connected to the oil inflow channel of the oil channel.

상기 릴리프밸브는 슬라이딩 이동될 수 있는 직경크기를 갖고 상기 밸브바디의 오일흐름통로를 형성한 오일출구단에 끼워지고 상기 오일유입유로에 잔존된 공기를 배출하는 공기통로스풀과, 상기 공기통로스풀을 통해 들어와 빠져나온 공기를 오일컨트롤밸브의 외부로 빼내주도록 상기 밸브바디에 뚫려진 공기배출통로와, 상기 공기통로스풀을 탄발지지하는 리턴스프링으로 구성되어진다.The relief valve has a diameter size that can be slid and moved to the oil outlet end forming the oil flow passage of the valve body and to discharge the air remaining in the oil inflow passage, and the air passage loss pool It consists of an air discharge passage drilled in the valve body to draw out the air coming in and out through the oil control valve, and a return spring to support the air cylinder loss pool.

상기 공기통로스풀은 공기와 오일을 통과시키는 중공홀이 뚫린 포지셔너로부터 돌출되어진 축부위에 상기 중공홀과 연통되도록 공기홀이 원주방향으로 뚫려지고, 상기 공기배출통로는 상기 오일컨트롤밸브의 밸브바디에 뚫려지게 된다.
The air flow path pulls the air hole in the circumferential direction so as to communicate with the hollow hole in the shaft portion protruding from the positioner through which the hollow hole for passing air and oil passes, and the air discharge passage is formed in the valve body of the oil control valve. It will be pierced.

이러한 본 발명은 어떠한 경우에서 엔진 시동을 걸더라도 엔진으로 공급되는 엔진오일속도가 잔존공기로 인해 낮춰지지 않아 최단시간내 오일충진은 물론, 특히 무윤활 운전구간 최소화로 엔진 부품의 내구성 및 신뢰성을 크게 향상할 수 있는 효과가 있게 된다.In the present invention, even when the engine is started, the engine oil speed supplied to the engine is not lowered due to the remaining air, thereby greatly improving the durability and reliability of the engine parts as well as the oil filling in the shortest time. There is an effect that can be improved.

또한, 본 발명은 엔진시동시 잔존공기를 먼저 빼내 밸브기구(HLA, 텐셔너 등)내 잔존 공기에 의한 이상소음 발생이 억제되어 전체적인 NVH를 크게 향상할 수 있는 효과도 있게 된다.In addition, the present invention is to remove the remaining air at the start of the engine first, the occurrence of abnormal noise by the residual air in the valve mechanism (HLA, tensioner, etc.) is suppressed, it is also possible to greatly improve the overall NVH.

또한, 본 발명은 엔진오일의 과도한 압력상승시 항상 적정한 오일압력을 유지시킬 수 있는 기본 작용을 위한 구성을 거의 변경하지 않고 잔존공기 배출작용을 구현할 수 있는 효과도 있게 된다.
In addition, the present invention also has the effect of realizing the residual air discharge action without changing the configuration for the basic action that can always maintain the proper oil pressure when the excessive pressure rise of the engine oil.

도 1은 본 발명에 따른 오일컨트롤밸브의 단면 구성도이고, 도 2는 본 발명에 따른 오일컨트롤밸브의 공기배출작동상태이며, 도 3은 본 발명에 따른 오일컨트롤밸브의 압력조정상태이고, 도 4는 종래에 따른 오일컨트롤밸브의 단면구조이다.1 is a cross-sectional configuration of the oil control valve according to the present invention, Figure 2 is an air discharge operation state of the oil control valve according to the present invention, Figure 3 is a pressure control state of the oil control valve according to the present invention, Figure 4 is a cross-sectional structure of the oil control valve according to the prior art.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명하며, 이러한 실시예는 일례로서 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 여러 가지 상이한 형태로 구현될 수 있으므로, 여기에서 설명하는 실시예에 한정되지 않는다.DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Since the exemplary embodiments of the present invention may be embodied in various different forms, one of ordinary skill in the art to which the present invention pertains may be described herein. It is not limited to the Example to make.

도 1은 본 실시예에 따른 오일컨트롤밸브의 단면 구성을 나타낸다.1 shows a cross-sectional structure of an oil control valve according to the present embodiment.

도시된 바와 같이, 오일유로바디(1)의 오일유입유로(2)로는 오일통로를 형성하는 밸브바디(10)를 갖춰 오일압력을 적정하게 유지시켜주는 오일컨트롤밸브가 오일유입유로(2)에 연결된 밸브홀(3)에 설치되고, 상기 오일유입유로(2)에 잔존되어진 공기를 외부로 빼내주는 공기흐름경로를 형성한 릴리프밸브(20)가 상기 밸브바디(10)의 뒤쪽에서 상기 밸브홀(3)에 설치되어진다.As shown, the oil inflow passage (2) of the oil flow passage body (1) is provided with a valve body (10) forming an oil passage is an oil control valve for maintaining the oil pressure properly to the oil inflow passage (2) A relief valve 20 installed in the connected valve hole 3 and forming an air flow path for releasing the air remaining in the oil inflow passage 2 to the outside is provided at the rear of the valve body 10. It is installed in (3).

상기 밸브바디(10)는 오일유입유로(2)로 들어와 과도한 압력으로 상승된 오일이 빠져나가는 흐름통로를 형성한 오일출구단(12)과, 밸브홀(3)의 기밀을 형성하도록 오일출구단(12)에 일체로 형성되어진 밀폐바디(16)를 갖추고, 상기 오일출구단(12)의 내부로는 체크밸브(15)가 더 구비됨으로써 밸브바디(10)의 유로를 개폐하여 준다.The valve body 10 has an oil outlet end 12 that forms a flow passage through which the oil flows into the oil inflow passage 2 and the oil rises due to excessive pressure is released, and the oil outlet end forms an airtightness of the valve hole 3. A sealed body 16 integrally formed at 12 is provided, and a check valve 15 is further provided inside the oil outlet 12 to open and close the flow path of the valve body 10.

상기 흐름통로는 오일출구단(12)의 앞쪽에 뚫린 오일입구(14)와 이에 연통되고 체크밸브(15)를 내장한 연결유로(13)로 이루어진다.The flow passage includes an oil inlet 14 drilled in front of the oil outlet end 12 and a connection passage 13 communicating with the oil inlet 14 and having a check valve 15 built therein.

상기 릴리프밸브(20)는 밸브홀(3)에 삽입되어 오일유입유로(2)로 위치되는 공기통로스풀(30)과, 공기통로스풀(30)을 통해 들어와 빠져나온 공기를 오일컨트롤밸브의 외부로 빼내주는 공기배출통로(40)와, 공기통로스풀(30)을 탄발지지하는 리턴스프링(50)으로 구성되어진다.The relief valve 20 is inserted into the valve hole (3) is an air inlet pool 30 which is located in the oil inlet flow path (2), and the air coming in through the air through the pool loss pool (30) to the outside of the oil control valve It consists of an air discharge passage 40 for pulling out the furnace, and a return spring 50 for supporting the air cylinder loss pool 30.

상기 공기통로스풀(30)은 공기와 오일을 통과시키는 중공홀(31)이 뚫린 돌출되어진 축부위를 갖춘 포지셔너(32)로 이루어지고, 상기 축부위에는 그 내부를 관통하는 중공홀(31)과 연통되도록 공기홀(33)이 원주방향으로 뚫려진다.The air cylinder loss pool 30 is composed of a positioner 32 having a protruding shaft portion through which a hollow hole 31 through which air and oil pass, and a hollow hole 31 penetrating the inside of the shaft portion. The air hole 33 is drilled in the circumferential direction so as to communicate.

상기 중공홀(31)은 오일컨트롤밸브의 밸브바디(10)를 이루는 오일출구단(12)에 끼워지져 슬라이딩 이동될 수 있는 직경크기로 이루어짐으로써, 일정 이상의 오일압력을 받은 공기통로스풀(30)이 밸브바디(10)쪽으로 밀려나가는 움직임을 허용할 수 있게 된다.The hollow hole 31 is made of a diameter size that can be slidably moved by being fitted to the oil outlet end 12 constituting the valve body 10 of the oil control valve, the air through the pool pull 30 received a predetermined or more oil pressure It is possible to allow the movement to be pushed toward the valve body (10).

또한, 상기 공기홀(33)은 중공홀(31)로 들어온 공기가 전 방향으로 빠져나갈수 있도록 적어도 90도 간격으로 약 4개가 형성되어진다.In addition, about four air holes 33 are formed at least 90 degrees apart so that the air entering the hollow hole 31 can escape in all directions.

한편, 상기 공기배출통로(40)는 공기통로스풀(30)로 유입되어진 공기가 오일컨트롤밸브의 외부로 빠져나가는 통로로서, 밸브바디(10)를 이용해 형성되어진다.On the other hand, the air discharge passage 40 is a passage through which the air introduced into the air passage loss pool 30 exits to the outside of the oil control valve, is formed using the valve body (10).

이로 인해, 본 실시예에서는 오일유로바디(1)에 대한 가공공정이나 형상변경이 전혀 요구되지 않고, 다만 오일컨트롤밸브를 이루는 밸브바디(10)에 공기배출통로(40)를 뚫어주는 공정만 추가 되는 단순함이 있게 된다.For this reason, in this embodiment, no machining process or shape change for the oil flow passage 1 is required, but only a process of drilling the air discharge passage 40 into the valve body 10 constituting the oil control valve is added. There is the simplicity of being.

상기 공기배출통로(40)도 전 방향으로 빠져나갈수 있도록 적어도 90도 간격으로 약 4개가 형성되어진다.About four air discharge passages 40 are formed at least 90 degrees apart so that they can exit in all directions.

그리고, 상기 리턴스프링(50)은 공기통로스풀(30)과 밸브바디(10)사이로 위치되어 공기통로스풀(30)을 탄발지지하는 코일스프링으로 구성되고, 보다 구체적으로 공기통로스풀(30)의 포지셔너(32)와 밸브바디(10)의 밀폐바디(16)사이로 위치되어 진다.In addition, the return spring 50 is located between the air cylinder loss pool 30 and the valve body 10 is composed of a coil spring to support the air cylinder loss pool 30, and more specifically of the air cylinder loss pool 30 It is positioned between the positioner 32 and the closed body 16 of the valve body 10.

상기 리턴스프링(50)의 탄성율은 밸브바디(10)에 구비된 체크밸브(15)의 탄성율과 같거나 또는 유사한 정도를 가짐으로써, 공기통로스풀(30)이 공기압이 아닌 오일유입유로(2)로 들어오는 오일(O)의 압력상승시에 만 움직일 수 있게 된다.The elastic modulus of the return spring 50 has the same or similar to the elastic modulus of the check valve 15 provided in the valve body 10, so that the air flow loss pool 30 is not an air pressure but an oil inflow passage 2 It can only move when the oil (O) rises in pressure.

상기 리턴스프링(50)은 코일스프링 타입으로 이루어진다. The return spring 50 is made of a coil spring type.

도 2는 본 실시예에 따른 오일컨트롤밸브의 공기배출작동상태를 나타낸다. 2 shows an air discharge operation state of the oil control valve according to the present embodiment.

도시된 바와 같이, 엔진시동으로 오일유로바디(1)의 오일유입유로(2)로 오일(O)이 들어오면, 오일유입유로(2)내 공기(A)는 오일(O)로 인해 오일컨트롤밸브의 밸브바디(10)쪽으로 밀려나게 된다.As shown, when the oil (O) enters the oil inflow passage (2) of the oil flow path body (1) by the engine start, the air (A) in the oil inflow passage (2) is oil control due to the oil (O) It is pushed toward the valve body 10 of the valve.

이때, 상기와 같이 오일유입유로(2)내 공기(A)가 있는 경우는 전술한 바와 같이, 엔진시동을 걸지 않고 장기간 방치함으로써 엔진내 오일이 자중에 의해 오일팬으로 내려감에 기인되어진다.At this time, if there is air A in the oil inflow passage 2 as described above, the oil in the engine is lowered to the oil pan due to its own weight by leaving it for a long time without applying the engine as described above.

상기와 같이 오일(O)로 인해 밀려난 공기통로스풀(30)로 유입된 공기(A)는 공기통로스풀(30)을 통과한 후, 공기통로스풀(30)과 밸브바디(10)가 위치된 밸브홀(3)의 공간으로 유입된 다음, 밸브바디(10)에 형성된 공기배출통로(40)를 통해 오일컨트롤밸브의 외부로 빠져나가게 된다.Air A introduced into the air cylinder loss pool 30 pushed out by the oil (O) as described above passes through the air passage loss pool 30, and the air cylinder loss pool 30 and the valve body 10 are positioned. After entering the space of the valve hole (3), the air is discharged to the outside of the oil control valve through the air discharge passage 40 formed in the valve body (10).

이때, 리턴스프링(50)은 압축되지 않는데, 이는 공기압만으로는 공기통로스풀(30)이 움직일 수 없음에 기인되어진다At this time, the return spring 50 is not compressed, which is due to the inability to move the air cylinder loss pool 30 only by the air pressure.

상기와 같은 공기(A)의 배출흐름경로를 보다 구체적으로 기술하면, 오일(O)로 인해 밀려난 공기(A)는 공기통로스풀(30)의 중공홀(31)로 유입된 후 중공홀(31)과 연통된 공기홀(33)을 통해 공기통로스풀(30)의 밖으로 나와 공기통로스풀(30)과 밸브바디(10)가 위치된 밸브홀(3)의 공간으로 유입되어진다.When describing the discharge flow path of the air (A) in more detail, the air (A) pushed out due to the oil (O) is introduced into the hollow hole 31 of the air through pool pool 30 and then the hollow hole ( 31 through the air hole 33 in communication with the air out of the pool pool 30, the air pool pool 30 and the valve body 10 is introduced into the space of the valve hole 3 is located.

이때, 상기 공기홀(33)은 밸브바디(10)의 오일출구단(12)에 의해 가려지지 않은 상태이다.At this time, the air hole 33 is not covered by the oil outlet end 12 of the valve body (10).

이어, 상기 밸브홀(3)의 공간으로 유입되어진 공기(A)는 밸브바디(10)에 뚫린 공기배출통로(40)쪽으로 유입된 후 밸브바디(10)를 지나 오일컨트롤밸브의 외부로 빠져나가게 되고, 이러한 공기배출작용으로 오일(O)이 밸브바디(10)로 빠져나가기전에 잔존된 공기(O)를 먼저 내 보낼 수 있게 된다.Subsequently, the air A introduced into the space of the valve hole 3 flows into the air discharge passage 40 bored in the valve body 10, and then passes through the valve body 10 to exit the oil control valve. In this way, the air discharge action allows the remaining air (O) to be discharged first before the oil (O) exits the valve body (10).

상기와 같이 공기(A)가 오일유입유로(2)->중공홀(31)->공기홀(33)->공기배출통로(40)를 통해 오일컨트롤밸브의 외부로 빠져나가는 과정이 이루어지는 것은, 오일(O)의 압력상승으로 공기통로스풀(30)이 슬라이딩 이동됨으로써 상기 공기홀(33)이 밸브바디(10)를 이루는 오일출구단(12)에 의해 차단될 때까지로서, 이는 지속적으로 이루어지게 된다.As described above, the air A flows out of the oil control valve through the oil inflow passage 2-> hollow hole 31-> air hole 33-> air discharge passage 40. As the pressure loss of the oil O increases, the air cylinder pool 30 is slidably moved until the air hole 33 is blocked by the oil outlet 12 forming the valve body 10, which is continuously Will be done.

한편, 도 3은 본 실시예에 따른 오일컨트롤밸브의 오일압력 조정상태를 나타낸다.On the other hand, Figure 3 shows the oil pressure adjustment state of the oil control valve according to this embodiment.

도시된 바와 같이, 오일유입유로(2)에 잔존되었던 공기(A)를 내보내면서 충진되어진 오일(O)의 압력은 밸브바디(10)에 작용하게 되고, 진행되면서 상승되는 오일(O)의 압력으로 어느 시점에서부터 체크밸브(15)가 열려짐으로써 오일컨트롤밸브를 빠져나가 오일유입유로(2)내 오일(O)의 압력을 적정한 상태로 저하시켜주게 된다.As shown, the pressure of the oil (O) filled while the air (A) remaining in the oil inlet flow path (2) is acting on the valve body 10, the pressure of the oil (O) which is raised as it proceeds At this point, the check valve 15 is opened to exit the oil control valve and lower the pressure of the oil O in the oil inflow passage 2 to an appropriate state.

즉, 공기(A)를 밀어내면서 오일유입유로(2)를 채운 오일(O)의 압력이 상승되어 공기통로스풀(30)에 압력을 가하게 되면, 상기 공기통로스풀(30)은 오일(O)의 압력으로 리턴스프링(50)을 압축변형시키면서 밀려나게 된다.That is, when the pressure of the oil O filling the oil inflow passage 2 while pushing the air (A) is increased to apply a pressure to the air cylinder pool (30), the air cylinder pool (30) is oil (O) It is pushed while compressing the return spring 50 under the pressure of.

밀려나는 공기통로스풀(30)은 공기홀(33)이 밸브바디(10)의 오일출구단(12)으로 차단될 때 까지 이동된 후, 밸브바디(10)의 오일출구단(12)으로 공기통로스풀(30)의 공기홀(33)이 막한 상태에서는 오일(O)의 압력이 밸브바디(10)의 오일출구단(12)에 구비된 체크밸브(15)에 가해지게 된다.The air cylinder loss pool 30 to be pushed is moved until the air hole 33 is blocked by the oil outlet end 12 of the valve body 10, and then the air reservoir to the oil outlet end 12 of the valve body 10. In the state where the air hole 33 of the loss pool 30 is clogged, the pressure of the oil O is applied to the check valve 15 provided at the oil outlet end 12 of the valve body 10.

오일(O)의 압력으로 체크밸브(15)가 열리면, 오일유입유로(2)를 채운 오일(O)은 밸브바디(10)의 오일출구단(12)에 뚫린 오일입구(14)로 들어와 이에 연통된 연결유로(13)로 유입된 후, 밸브바디(10)를 지나 오일컨트롤밸브를 빠져나감으로써 오일유입유로(2)내 오일(O)의 압력을 적정한 상태로 유지시켜 주게 된다.When the check valve 15 is opened by the pressure of the oil O, the oil O filling the oil inflow passage 2 enters the oil inlet 14 bored at the oil outlet 12 of the valve body 10. After flowing into the connected flow passage 13, the oil flow through the valve body 10 exits the oil control valve to maintain the proper pressure of the oil (O) in the oil inflow passage (2).

상기와 같이 엔진내부로 공급되는 오일이 오일컨트롤밸브쪽에서 잔존 공기(A)의 영향을 받지 않고 신속하게 공급됨으로써 베어링 소착을 일으키는 윤활부족현상이 없으면서, 더불어 밸브기구(HLA, 텐셔너 등)내 잔존 공기에 의한 이상소음 발생 억제로 NVH도 크게 향상될 수 있게 된다.
As described above, the oil supplied into the engine is rapidly supplied from the oil control valve side without the influence of the remaining air (A), so that there is no lack of lubrication that causes bearing ignition, and the remaining air in the valve mechanism (HLA, tensioner, etc.). By suppressing the occurrence of abnormal noise by the NVH can be greatly improved.

1 : 오일유로바디 2 : 오일유입유로
3 : 밸브홀
10 : 밸브바디 12 : 오일출구단
13 : 오일바디유로 14 : 오일바디입구
15 : 체크밸브 16 : 밀폐바디
20 : 릴리프밸브 30 : 공기통로스풀
31 : 중공홀 32 : 포지셔너
33 : 공기홀
40 : 공기배출통로 50 : 리턴스프링
A : 공기 O : 엔진오일1: oil euro body 2: oil inflow path
3: valve hole
10: valve body 12: oil outlet end
13: oil body euro 14: oil body inlet
15: check valve 16: sealed body
20: relief valve 30: air cylinder loose pull
31: hollow hole 32: positioner
33: air hole
40: air discharge passage 50: return spring
A: Air O: Engine oil

Claims (6)

엔진시동시 엔진내부로 공급되는 오일의 압력이 가해져 설정이상의 압력을 빼내주는 밸브바디부위로 구비되어, 상기 밸브바디부위로 가해지는 오일의 압력으로 밀려나는 공기를 밖으로 빼내주는 공기흐름경로를 형성해주는 릴리프밸브가
더 포함된 것을 특징으로 하는 오일컨트롤밸브.
When the engine is started, it is provided with a valve body part for extracting the pressure higher than the set pressure by applying the pressure of the oil supplied to the inside of the engine, thereby forming an air flow path for removing the air pushed out by the pressure of the oil applied to the valve body part. Relief valve
Oil control valve further comprises.
청구항 1에 있어서, 상기 릴리프밸브는 오일유로바디의 오일유입유로에 연결된 밸브홀로 설치되어진 상기 밸브바디의 뒤쪽에서 상기 밸브홀에 위치되어진 것을 특징으로 하는 오일컨트롤밸브.
The oil control valve of claim 1, wherein the relief valve is positioned at the valve hole at the rear of the valve body installed as a valve hole connected to an oil inflow path of the oil flow path body.
청구항 2에 있어서, 상기 릴리프밸브는 슬라이딩 이동될 수 있는 직경크기를 갖고 상기 밸브바디의 오일흐름통로를 형성한 오일출구단에 끼워지고 상기 오일유입유로에 잔존된 공기를 배출하는 공기통로스풀과, 상기 공기통로스풀을 통해 들어와 빠져나온 공기를 오일컨트롤밸브의 외부로 빼내주도록 상기 밸브바디에 뚫려진 공기배출통로와, 상기 공기통로스풀을 탄발지지하는 리턴스프링으로 구성되어진 것을 특징으로 하는 오일컨트롤밸브.
The method of claim 2, wherein the relief valve has a diameter size that can be slidably moved to the air outlet end formed in the oil outlet end forming the oil flow passage of the valve body and discharges the remaining air in the oil inflow passage; An oil control valve comprising an air discharge passage drilled through the body of the valve so as to draw out the air drawn out through the air supply pool to the outside of the oil control valve, and a return spring to support the air supply pool. .
청구항 3에 있어서, 상기 공기통로스풀은 공기와 오일을 통과시키는 중공홀이 뚫린 포지셔너로부터 돌출되어진 축부위에 상기 중공홀과 연통되도록 공기홀이 원주방향으로 뚫려지고, 상기 공기배출통로는 상기 오일컨트롤밸브의 밸브바디에 뚫려진 것을 특징으로 하는 오일컨트롤밸브.
The air flow passage of claim 3, wherein the air hole is pulled in the circumferential direction so that the air hole communicates with the hollow hole on the shaft portion protruding from the positioner through which the air hole and the oil pass. Oil control valve, characterized in that perforated in the valve body of the valve.
청구항 4에 있어서, 상기 공기홀과 공기배출통로는 적어도 1개 이상으로 형성되어진 것을 특징으로 하는 오일컨트롤밸브.
The oil control valve of claim 4, wherein at least one air hole and at least one air discharge passage are formed.
청구항 4에 있어서, 상기 리턴스프링은 코일스프링 타입인 것을 특징으로 하는 오일컨트롤밸브.
The oil control valve of claim 4, wherein the return spring is a coil spring type.
KR1020110077316A 2011-08-03 2011-08-03 Oil Control Valve KR101693888B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200483490Y1 (en) * 2016-11-02 2017-05-22 권진호 Check valve of hydraulic auto tensioner for vehicle
KR101879712B1 (en) * 2016-12-16 2018-07-18 주식회사 인팩 Hydraulic system of actuator for vehicle
JP2018141488A (en) * 2017-02-27 2018-09-13 いすゞ自動車株式会社 Relief valve controller and relief valve control method

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KR20090036823A (en) 2007-10-10 2009-04-15 현대자동차주식회사 An oil control system for a vehicle
JP2009079475A (en) * 2007-09-25 2009-04-16 Toyota Motor Corp Variable valve train for internal combustion engine
WO2010134172A1 (en) * 2009-05-20 2010-11-25 トヨタ自動車 株式会社 Control device for internal combustion engine

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JP2009079475A (en) * 2007-09-25 2009-04-16 Toyota Motor Corp Variable valve train for internal combustion engine
KR20090036823A (en) 2007-10-10 2009-04-15 현대자동차주식회사 An oil control system for a vehicle
WO2010134172A1 (en) * 2009-05-20 2010-11-25 トヨタ自動車 株式会社 Control device for internal combustion engine

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Publication number Priority date Publication date Assignee Title
KR200483490Y1 (en) * 2016-11-02 2017-05-22 권진호 Check valve of hydraulic auto tensioner for vehicle
KR101879712B1 (en) * 2016-12-16 2018-07-18 주식회사 인팩 Hydraulic system of actuator for vehicle
JP2018141488A (en) * 2017-02-27 2018-09-13 いすゞ自動車株式会社 Relief valve controller and relief valve control method

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