KR100589765B1 - Motor driven flow control valve for liquid rocket using 2 step sliding member - Google Patents

Motor driven flow control valve for liquid rocket using 2 step sliding member Download PDF

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KR100589765B1
KR100589765B1 KR1020040099499A KR20040099499A KR100589765B1 KR 100589765 B1 KR100589765 B1 KR 100589765B1 KR 1020040099499 A KR1020040099499 A KR 1020040099499A KR 20040099499 A KR20040099499 A KR 20040099499A KR 100589765 B1 KR100589765 B1 KR 100589765B1
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South Korea
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poppet
sliding member
gap
flow control
liquid rocket
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KR1020040099499A
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Korean (ko)
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KR20060060435A (en
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이중엽
정태규
하성업
한상엽
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한국항공우주연구원
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    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/12—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened
    • F16K1/123—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened with stationary valve member and moving sleeve
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/029—Electromagnetically actuated 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • Lift Valve (AREA)

Abstract

개시된 액체로켓의 유량제어밸브는, 입,출구를 포함한 유로가 형성된 밸브몸체와, 그 유로 내에 고정 설치된 포펫과, 포펫에 대해 접근 및 이격이 가능하도록 설치되어 유로가 그 포펫과의 벌어진 틈새를 경유하도록 만드는 슬라이딩부재 및, 슬라이딩부재를 왕복이동시킴으로써 틈새의 개도를 가변시키는 구동기구를 포함한다. 이와 같은 구조에서는, 포펫을 고정시켜 놓고 슬라이딩부재를 움직이며 틈새의 개도를 조정하기 때문에, 고유량 제어 시에도 포펫을 특별히 크게 만들지 않아도 되고, 그에 따라 커다란 포펫 구동기구를 설치할 필요도 없어져서 전체 밸브를 경량화할 수 있다.The flow control valve of the disclosed liquid rocket includes a valve body having a flow path including an inlet and an outlet, a poppet fixedly installed in the flow path, and a gap between the poppet and the gap between the poppet and the poppet. And a driving mechanism for varying the opening degree of the gap by reciprocating the sliding member. In this structure, the poppet is fixed, the sliding member is moved and the opening degree of the gap is adjusted. Therefore, the poppet does not need to be made particularly large even at high flow rate control, thereby eliminating the need for installing a large poppet drive mechanism. It can be lightened.

액체로켓, 유량제어, 밸브, 포펫Liquid Rocket, Flow Control, Valve, Poppet

Description

2단 슬라이딩부재를 이용한 모터구동방식의 액체로켓 유량제어밸브{Motor driven flow control valve for liquid rocket using 2 step sliding member}Motor driven flow control valve for liquid rocket using 2 step sliding member}

도 1은 본 발명에 따른 액체로켓 유량제어밸브의 내부 구조를 도시한 단면 사시도,1 is a cross-sectional perspective view showing the internal structure of the liquid rocket flow control valve according to the present invention;

도 2 내지 도 5는 도 1에 도시된 유량제어밸브의 작동 상태를 단계적으로 보인 도면.2 to 5 is a view showing in step the operating state of the flow control valve shown in FIG.

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

100...유량제어밸브 110...밸브몸체Flow control valve 110 Valve body

120...포펫 130...슬라이딩부재120 ... poppet 130 ... sliding member

131...상부슬라이더 132...하부슬라이더131 Upper slider 132 Lower slider

140...구동기구 141...랙140 ... drive mechanism 141 ... rack

142...피니언 143...모터142 Pinion 143 Motor

d1,d2,d3...틈새d1, d2, d3 ... gap

본 발명은 액체로켓의 추력제어와 공연비제어 등을 목적으로 하는 유량제어 밸브에 관한 것이다. The present invention relates to a flow control valve for the purpose of thrust control and air-fuel ratio control of the liquid rocket.

일반적으로 액체로켓은, 액체 상태의 연료와 산화제를 혼합하여 연소실에서 태우고, 그 배기가스를 노즐을 통해 분출함으로써 작용-반작용 원리에 따른 추진력을 얻어내는 비행장치이다. 이와 같은 액체로켓은 밸브와 펌프를 통해 연소량을 쉽게 조절할 수 있는 장점을 가지고 있어서 고체형 로켓에 비해 선호되고 있는 추세이다. In general, a liquid rocket is a flying device in which a liquid fuel and an oxidant are mixed and burned in a combustion chamber, and the exhaust gas is ejected through a nozzle to obtain a propulsion force according to the action-reaction principle. Such liquid rockets have an advantage that the amount of combustion can be easily controlled through a valve and a pump, and thus, a liquid rocket is preferred to a solid rocket.

이와 같이 액체로켓의 연소량을 조절하기 위해서는 연소실에 공급되는 연료 및 산화제의 유량을 조절하기 위한 유량제어밸브가 필요한데, 종래에는 이 유량조절밸브로서 통상적인 포펫(poppet) 밸브가 주로 사용되었다. 포펫밸브는 밸브의 유로 중에 포펫이라는 개폐용 부재를 왕복이동가능하게 설치하여, 그 포펫의 움직임으로 유로를 선택적으로 개폐하면서 개도를 조정하는 구조로 되어 있다. Thus, in order to control the amount of combustion of the liquid rocket, a flow control valve for controlling the flow rate of the fuel and the oxidant supplied to the combustion chamber is required, and conventional poppet valves have been mainly used as the flow control valve. The poppet valve has a structure in which an opening and closing member called a poppet is reciprocated in the flow path of the valve, and the opening degree is adjusted while selectively opening and closing the flow path by the movement of the poppet.

그런데, 이와 같은 종래의 포펫밸브의 경우에, 유량의 제어범위를 확대하기 위해 개도를 넓히면, 그 개도에 맞게 포펫도 크게 만들어야 하고 그 구동기구 역시 커져야 하기 때문에, 밸브의 몸체가 커지는 문제점이 있다. 액체로켓의 경우에 대부분 고유량 밸브를 사용하는 점을 감안하면, 이와 같이 밸브의 몸체가 커지는 것은 액체로켓 전체의 무게를 상당히 증가시키는 문제점으로 나타나게 된다. However, in the case of the conventional poppet valve as described above, when the opening degree is widened to expand the control range of the flow rate, the poppet body has to be made large according to the opening degree and the driving mechanism must also be enlarged. Considering that most of the liquid rockets use high flow valves, this increase in the body of the valve appears to significantly increase the weight of the entire liquid rocket.

한편, 이러한 문제를 해소하고자 유로를 복잡하게 형성하면, 밸브 입출측 간의 차압이 심하게 발생하여 원활한 유량제어가 이루어지지 못하는 또 다른 문제점이 발생하게 된다. On the other hand, if the flow path is complicated to solve this problem, the pressure difference between the valve entry and exit occurs badly, there is another problem that does not achieve smooth flow control.

본 발명은 상기의 문제점을 감안하여 창출된 것으로서, 몸체를 크게 만들지 않고도 유량제어 범위를 확대할 수 있으며 차압 발생의 가능성도 줄일 수 있도록 개선된 액체로켓의 유량제어밸브를 제공하는데 그 목적이 있다. The present invention has been made in view of the above problems, and an object thereof is to provide a flow control valve for an improved liquid rocket that can expand the flow control range without making the body larger and reduce the possibility of generating a differential pressure.

상기의 목적을 달성하기 위한 본 발명의 액체로켓용 유량제어밸브는, 입,출구를 포함한 유로가 형성된 밸브몸체; 상기 유로 내에 고정 설치된 포펫; 상기 포펫에 대해 접근 및 이격이 가능하도록 설치되어 상기 유로가 그 포펫과의 벌어진 틈새를 경유하도록 만드는 슬라이딩부재; 상기 슬라이딩부재를 왕복이동시킴으로써 상기 틈새의 개도를 가변시키는 구동기구;를 구비한다.Flow control valve for a liquid rocket of the present invention for achieving the above object, the valve body is formed with a flow path including the inlet, outlet; A poppet fixedly installed in the flow path; A sliding member installed to be accessible and spaced from the poppet so that the flow path passes through a gap between the poppet and the gap; And a driving mechanism for varying the opening degree of the gap by reciprocating the sliding member.

이하 첨부된 도면을 참조하면서 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 일 실시예에 따른 액체로켓의 유량제어밸브(100)를 도시한 것이다. 1 illustrates a flow control valve 100 of a liquid rocket in accordance with an embodiment of the present invention.

도면을 참조하면, 우선 유체가 통과하도록 밸브몸체(110)에 형성된 유로 안에 포펫(120)이 고정 설치되어 있다. 즉, 기존의 포펫밸브에서는 유로 안에서 포펫이 움직이며 개도를 조정하게 되어 있었지만, 본 발명에서는 반대로 포펫(120)이 유로 안에 고정되어 있다. 대신, 상,하부슬라이더(131)(132)로 이루어진 슬라이딩부재(130)가 이 포펫(120)에 대해 접근 및 이격이 가능하게 설치되어 있다. 상기 하부슬라이더(132)는 유로의 입구(101)와 연통된 유입관(103)의 외주면에 슬라이딩 가능하게 설치되고, 상부슬라이더(131)는 이 하부슬라이더(132)의 외주면에 슬라이 딩 가능하게 설치되어 있다. 그리고, 상부슬라이더(131)에는 하부슬라이더(132)의 제1,2걸림턱(132a)(132b)에 걸릴 수 있는 슬라이딩핀(131a)이 마련되어 있어서, 후술할 구동기구(140)에 의해 상부슬라이더(131)가 움직이면 하부슬라이더(132)도 연동되어 움직일 수 있게 되어 있다. 즉, 마치 외눈 망원경의 다단식 경통 구조와 같이 텔레스코픽 연동이 되는 것이다. Referring to the drawings, first, the poppet 120 is fixedly installed in a flow path formed in the valve body 110 to allow fluid to pass therethrough. That is, in the conventional poppet valve, the poppet is moved and the opening degree is adjusted in the flow path, but in the present invention, the poppet 120 is fixed in the flow path. Instead, a sliding member 130 composed of upper and lower sliders 131 and 132 is installed to be accessible and spaced apart from the poppet 120. The lower slider 132 is slidably installed on the outer circumferential surface of the inflow pipe 103 communicating with the inlet 101 of the flow path, and the upper slider 131 is slidably installed on the outer circumferential surface of the lower slider 132. It is. In addition, the upper slider 131 is provided with a sliding pin 131a that can be caught by the first and second locking jaws 132a and 132b of the lower slider 132, and the upper slider by the driving mechanism 140 to be described later. When 131 moves, the lower slider 132 is also linked to move. In other words, the telescopic linkage is like a multi-stage barrel structure of a one-eye telescope.

그리고, 상기 구동기구로서는, 상부슬라이더(131)에 설치된 랙(141)과, 그 랙(141)에 맞물린 피니언(142) 및, 피니언(142)을 회전구동시키는 모터(143) 등이 구비된다. 따라서, 모터(143)에 의해 피니언(142)이 정,역회전하면, 랙(141)이 설치된 상부슬라이더(131)가 전후진하게 되며, 상기 슬라이딩핀(131a)이 제1,2걸림턱(132a)(132b)에 걸리면 하부슬라이더(132)도 따라서 움직이게 된다. The drive mechanism includes a rack 141 provided on the upper slider 131, a pinion 142 meshed with the rack 141, a motor 143 for rotationally driving the pinion 142, and the like. Therefore, when the pinion 142 rotates forward and backward by the motor 143, the upper slider 131 on which the rack 141 is installed moves forward and backward, and the sliding pin 131a is first and second locking jaws 132a. 132b), the lower slider 132 moves accordingly.

이와 같은 구성의 액체로켓용 유량제어밸브에 있어서, 액체연료나 산화제 등의 유체를 연소실에 공급하지 않을 때에는 도 2에 도시된 바와 같이 슬라이딩부재(130)의 상부슬라이더(131)가 포펫(120)의 유선형 외주면에 밀착된 상태가 된다. 이렇게 되면 포펫(120)과 상부슬라이더(131) 사이가 막혀 있기 때문에 입구(101)와 유입관(103)을 통해 들어온 유체가 출구(102) 쪽으로 공급되지 않고 대기상태로 있게 된다. In the liquid rocket flow control valve having such a configuration, when the fluid such as liquid fuel or oxidant is not supplied to the combustion chamber, the upper slider 131 of the sliding member 130 is poppet 120 as shown in FIG. 2. It will be in close contact with the streamlined outer peripheral surface of the. In this case, since the gap between the poppet 120 and the upper slider 131 is blocked, the fluid introduced through the inlet 101 and the inlet pipe 103 is not supplied toward the outlet 102 and remains in the standby state.

이 상태에서 유체 공급을 위한 작동신호가 입력되면, 모터(143)가 회전하게 되면서 도 3과 같이 슬라이딩부재(130)의 상부슬라이더(131)가 입구(101) 쪽으로 움직이게 되며, 이에 따라 상부슬라이더(131)와 포펫(120) 사이의 틈새(d1)가 벌어지게 된다. 이렇게 되면 입구(101)와 유입관(103)을 통해 들어온 유체가 이 틈새 (d1)를 통해 출구(102)로 빠져나가서 연소실 등에 공급된다. 이 상태는 상부슬라이더(131)만 움직인 상태이며 하부슬라이더(132)는 아직 움직이지 않은 상태가 된다. 즉, 상부슬라이더(131)만 움직이면서 생긴 좁은 틈새(d1)를 통해 유체가 공급되기 때문에, 비교적 적은 유량을 공급하고자 할 경우에 이 개도 상태를 유지한다. In this state, when the operation signal for supplying the fluid is input, as the motor 143 rotates, the upper slider 131 of the sliding member 130 moves toward the inlet 101 as shown in FIG. 3, and thus the upper slider ( A gap d1 between the 131 and the poppet 120 is opened. In this case, the fluid introduced through the inlet 101 and the inlet pipe 103 exits the outlet 102 through the gap d1 and is supplied to the combustion chamber or the like. In this state, only the upper slider 131 is moved, and the lower slider 132 is not moved yet. That is, since the fluid is supplied through the narrow gap d1 generated only by the upper slider 131, the opening degree is maintained when a relatively small flow rate is to be supplied.

그러나, 이보다 더 큰 유량을 공급하고자 할 경우에는, 모터(143)를 같은 방향으로 더 구동하여 도 4에 도시된 바와 같이 하부슬라이더(132)도 입구(101) 쪽으로 움직이게 한다. 즉, 상부슬라이더(131)의 슬라이딩핀(131a)이 하부슬라이더(132)의 제1걸림턱(132a)에 걸린 상태로 더 움직이면서 하부슬라이더(132)도 입구(101) 쪽으로 이동되게 하는 것이다. 그러면, 포펫(120)과 슬라이딩부재(130) 사이의 틈새(d2)가 도 3의 상태보다 더욱 벌어지게 되어 연소실 등에 더 큰 유량이 공급될 수 있게 된다. However, to supply a larger flow rate than this, the motor 143 is further driven in the same direction so that the lower slider 132 also moves toward the inlet 101 as shown in FIG. 4. That is, while the sliding pin 131a of the upper slider 131 is further moved while being caught by the first catching jaw 132a of the lower slider 132, the lower slider 132 is also moved toward the inlet 101. Then, the gap d2 between the poppet 120 and the sliding member 130 is wider than the state of FIG. 3, so that a larger flow rate can be supplied to the combustion chamber or the like.

반대로, 도 4와 같이 큰 유량을 공급하는 모드에서 적은 유량을 공급하는 모드로 전환할 때에는 모터(143)를 반대방향으로 돌려서, 도 5와 같이 슬라이딩핀(131a)과 제2걸림턱(132b)이 닿는 위치까지 상부슬라이더(131)가 출구(102) 쪽으로 움직이게 한다. 이 상태는 전술한 도 3의 경우와 비교했을 때 상,하부슬라이더(131)(132)의 위치가 약간 다르지만, 포펫(120)과 슬라이딩부재(130)간 틈새의 개도는 거의 동일하다(d3≒d1). 즉, 도 4와 같이 큰 유량을 공급하는 상태보다 상대적으로 틈새(d3)가 좁아져서 공급 유량이 감소하게 되는 것이다. On the contrary, when switching from a mode of supplying a large flow rate to a mode of supplying a small flow rate as shown in FIG. 4, the motor 143 is turned in the opposite direction, as shown in FIG. The upper slider 131 moves toward the exit 102 to this touching position. In this state, the position of the upper and lower sliders 131 and 132 is slightly different as compared with the case of FIG. 3, but the opening degree of the gap between the poppet 120 and the sliding member 130 is almost the same (d3 ≒). d1). That is, the gap d3 is narrower than the state of supplying a large flow rate as shown in FIG. 4, thereby reducing the supply flow rate.

그리고, 유체공급을 정지하고자 할 경우에는 도 5처럼 슬라이딩핀(131a)이 제2걸림턱(132b)에 걸린 상태에서 상부슬라이더(131)를 출구(102) 쪽으로 더 이동시켜서 포펫(120)의 최장둘레 지점 부근까지 이동하여 위치하게 하고 하부슬라이더(132)의 우측 끝단은 상기 포펫(120)과 맞닿도록 이동하게 하는 바, 하부슬라이더(132)도 따라서 출구(102) 쪽으로 이동하게 한다. 그러면, 상부슬라이더(131)가 포펫(120)에 밀착하면서 도 2의 대기 상태로 되돌아가게 된다. When the fluid supply is to be stopped, the upper slider 131 is further moved toward the outlet 102 in the state where the sliding pin 131a is caught by the second locking jaw 132b as shown in FIG. The lower end of the slider 132 moves to the vicinity of the circumferential point and the right end of the lower slider 132 is brought into contact with the poppet 120. The lower slider 132 also moves toward the outlet 102. Then, the upper slider 131 is returned to the standby state of FIG. 2 while being in close contact with the poppet 120.

이와 같이, 고정된 포펫(120)에 대해 슬라이딩부재(130)를 접근 및 이격시키면서 틈새의 개도를 조정하여 유량을 제어하는 것이다. As such, the flow rate is controlled by adjusting the opening degree of the gap while approaching and separating the sliding member 130 with respect to the fixed poppet 120.

한편, 포펫(120)의 외주면을 도면과 같이 유선형 모양으로 만들면, 형상항력을 줄일 수 있기 때문에, 입출구 측의 차압발생을 억제할 수 있는 효과가 있다. On the other hand, if the outer circumferential surface of the poppet 120 has a streamlined shape as shown in the figure, since the shape drag can be reduced, there is an effect that can suppress the occurrence of the differential pressure on the inlet and outlet side.

상술한 바와 같이 본 발명에 따른 액체로켓의 유량제어밸브는 다음과 같은 효과를 제공한다.As described above, the flow control valve of the liquid rocket according to the present invention provides the following effects.

첫째, 포펫을 고정시켜 놓고 슬라이딩부재를 움직이며 틈새의 개도를 조정하기 때문에, 고유량 제어 시에도 포펫을 특별히 크게 만들지 않아도 되고 따라서 커다란 포펫 구동기구를 설치할 필요도 없어져서 전체 밸브를 경량화할 수 있다. First, since the poppet is fixed and the sliding member is moved and the opening degree of the gap is adjusted, the poppet does not need to be made particularly large even at high flow rate control, and thus, there is no need to install a large poppet driving mechanism, thereby reducing the overall valve weight.

둘째, 개도 조정을 위한 슬라이딩부재를 상,하부슬라이더의 2단으로 구성함으로써 작은 행정거리에서도 유량제어를 위한 개도 조정 범위를 극대화할 수 있다. Second, by configuring the sliding member for opening adjustment in two stages of the upper and lower sliders, it is possible to maximize the opening adjustment range for flow control even at a small stroke.

셋째, 포펫의 외주면 형상을 유선형 모양으로 하여 형상항력을 줄임으로써 차압발생을 억제할 수 있다.Third, the pressure difference can be suppressed by reducing the shape drag by making the outer circumferential surface of the poppet a streamlined shape.

본 발명은 상기에 설명되고 도면에 예시된 것에 의해 한정되는 것은 아니며 다음에 기재되는 청구의 범위 내에서 더 많은 변형 및 변용예가 가능한 것임은 물론이다.It is to be understood that the invention is not limited to that described above and illustrated in the drawings and that many more modifications and variations are possible within the scope of the following claims.

Claims (4)

입,출구를 포함한 유로가 형성된 밸브몸체;A valve body having a flow path including an inlet and an outlet; 상기 유로 내에 고정 설치된 포펫;A poppet fixedly installed in the flow path; 상기 포펫에 대해 접근 및 이격이 가능하도록 설치되어 상기 유로가 그 포펫과의 벌어진 틈새를 경유하도록 만드는 슬라이딩부재;A sliding member installed to be accessible and spaced from the poppet so that the flow path passes through a gap between the poppet and the gap; 상기 슬라이딩부재를 왕복이동시킴으로써 상기 틈새의 개도를 가변시키는 구동기구;를 구비하는 액체로켓의 유량제어밸브.And a drive mechanism for varying the opening degree of the gap by reciprocating the sliding member. 제1항에 있어서,The method of claim 1, 상기 슬라이딩부재는,The sliding member, 상기 입구와 연통된 유입관의 외주면에 슬라이딩 가능하게 설치된 하부슬라이더와,A lower slider slidably installed on an outer circumferential surface of the inlet pipe communicating with the inlet; 상기 하부슬라이더의 외주면에 슬라이딩 가능하게 설치된 상부슬라이더를 포함하며,An upper slider slidably installed on an outer circumferential surface of the lower slider, 상기 상,하부슬라이더는 텔레스코픽 연동이 가능하게 연결된 것을 특징으로 하는 액체로켓의 유량제어밸브.The upper and lower sliders are flow control valves of a liquid rocket, characterized in that the telescopic linkage is possible. 제1항에 있어서,The method of claim 1, 상기 구동기구는,The drive mechanism, 상기 슬라이딩부재에 설치된 랙과, 상기 랙에 맞물리는 피니언과, 상기 피니 언을 회전구동시키는 모터를 포함하는 것을 특징으로 하는 액체로켓의 유량제어밸브. And a rack installed at the sliding member, a pinion engaged with the rack, and a motor for rotating the pinion. 제1항에 있어서,The method of claim 1, 상기 포펫의 외주면은 유선형 모양을 갖는 것을 특징으로 하는 액체로켓의 유량제어밸브.The outer circumferential surface of the poppet is a flow control valve of the liquid rocket, characterized in that it has a streamlined shape.
KR1020040099499A 2004-11-30 2004-11-30 Motor driven flow control valve for liquid rocket using 2 step sliding member KR100589765B1 (en)

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