WO2020054900A1 - Servo-vanne - Google Patents

Servo-vanne Download PDF

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Publication number
WO2020054900A1
WO2020054900A1 PCT/KR2018/011551 KR2018011551W WO2020054900A1 WO 2020054900 A1 WO2020054900 A1 WO 2020054900A1 KR 2018011551 W KR2018011551 W KR 2018011551W WO 2020054900 A1 WO2020054900 A1 WO 2020054900A1
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WO
WIPO (PCT)
Prior art keywords
opening
piston
closing
inlet
hole
Prior art date
Application number
PCT/KR2018/011551
Other languages
English (en)
Korean (ko)
Inventor
임재훈
윤만영
배지웅
Original Assignee
주식회사 비엠티
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 주식회사 비엠티 filed Critical 주식회사 비엠티
Publication of WO2020054900A1 publication Critical patent/WO2020054900A1/fr

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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
    • F16K1/32—Details
    • F16K1/52—Means for additional adjustment of the rate of flow
    • F16K1/526—Means for additional adjustment of the rate of flow for limiting the maximum flow rate, using a second valve
    • 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
    • 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
    • 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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves

Definitions

  • the present invention relates to a servo valve, and more particularly, to a servo valve capable of precisely controlling the discharge flow rate.
  • CFC and H (C) FC refrigerants which are global warming materials, is prohibited, research on refrigerators or heat pump systems using natural refrigerants such as carbon dioxide (CO 2 ) and ammonia (NH 3 ) is actively conducted. have.
  • U.S. Patent No. 7669609 discloses a universal cooling valve applied to a cooling system using a refrigerant such as carbon dioxide, ammonia, and the like.
  • a valve port 24 is formed between the inlet 23 and the outlet 25, and a piston 33 is inserted into the valve port 24.
  • the piston 33 moves upward and opens the valve port 24, the inlet 23 and the outlet 25 communicate with each other to allow fluid to flow, and the piston 33 moves downward. By moving, the valve port 24 is closed to block fluid flow.
  • one valve port 24, that is, one flow channel is formed, and when the valve port 24 is opened by movement of the piston 33, fluid having the same flow rate is generated. Flow.
  • the present invention was devised to solve the above problems, and an object thereof is to provide a servo valve capable of precisely controlling the discharge flow rate by controlling the opening of the through-hole formed in the opening / closing part or moving the opening / closing part to open the inlet. There is this.
  • the servo valve includes: a valve body portion formed with an inlet portion through which a fluid is introduced and an outlet portion through which a fluid is discharged; An inlet port communicating with the inlet part and the outlet part in the valve body part; An opening / closing part disposed at the inlet and selectively opening and closing the inlet; And a driving unit operable to open a through hole formed in the opening and closing portion to discharge a certain flow rate, or to move the opening and closing portion to open the inlet port.
  • the opening and closing portion, the through hole is formed in the center, the opening and closing plate for opening and closing the inlet; And it is disposed between the opening and closing plate and the valve body portion, the opening and closing plate elastic member for applying an elastic force to the opening and closing plate is in close contact with the inlet; may include.
  • the piston moves in close contact with the inner circumferential surface of the valve body;
  • a movable member fastened to the piston and moved together, inserted into a through hole of the opening / closing plate, opening the through hole when the movement is started by the piston, and pressing and moving the opening / closing plate when moving a predetermined distance;
  • a working fluid inflow channel communicating the inlet and the upper space of the piston so that fluid flows into the upper space of the piston to press the piston, and is opened and closed by a pilot valve;
  • a driving member elastic member disposed between the valve body part and the piston and applying an elastic force so that the movable member closes the through hole.
  • the movable member is fastened to the piston, is provided with a larger diameter than the through-hole to move a certain distance to press the opening and closing plate to move the shaft; And a disc provided with a smaller diameter than the shaft and fastened to the end of the shaft, and a disc provided as a closing portion that is formed to extend outwardly from the disc body and is inserted into and closed to the through hole of the opening / closing plate. .
  • the movable member the shaft fastened to the piston;
  • a disc provided with a diameter smaller than the shaft and fastened to an end of the shaft, and a disc provided as a closing portion that extends outwardly from the disc body and is inserted into and closed in the through hole of the opening and closing plate;
  • a pressing member which is fastened to the outer circumferential surface of the shaft so as to partially surround the disc body and moves by pressing the opening / closing plate when moving a certain distance.
  • the pressing member may further include a communication hole formed radially through the region surrounding the disk body so that the fluid introduced through the through hole flows to the discharge portion when the opening plate is pressed.
  • the pressing member is fastened to the shaft so that the gap between the opening and closing plates is adjusted, and when pressing the opening and closing plates, the spacing between the through holes and the closing portions is adjusted to control the flow rate discharged through the through holes. It may be provided.
  • the opening / closing plate may further include a protruding guide portion protruding from the periphery of the through hole toward the pressing member, and contacting the inner circumferential surface of the pressing member.
  • the servo valve according to an embodiment of the present invention is disposed at the inlet to surround the opening / closing plate, and may further include a filter unit for filtering foreign substances contained in the fluid flowing through the inlet.
  • valve body portion is disposed on the upper side of the piston, it may be further included; a manual driving unit for pressing and moving the piston by the user's operation.
  • the manual driving unit the driving unit housing fastened to the valve body portion;
  • An operating member provided to be rotated in the driving unit housing and rotated by a user's manipulation;
  • a pressure rod disposed inside the drive unit housing to penetrate the valve body portion, move linearly in response to rotation of the operation member, and selectively pressurize the piston.
  • the manual driving unit the graduation is marked on at least one of the pressing rod and the operating member, the distance between the through hole and the closing portion by checking the distance that the pressing rod moves by pressing the piston It is also possible to adjust the flow rate discharged through the through-hole.
  • the servo valve according to the embodiment of the present invention may further include a pilot unit installation unit which is disposed above the piston in the valve body unit and in which a plurality of pilot valves operating under different conditions are installed. .
  • the pilot unit installation portion is fastened to the valve body portion, a plurality of pilot valves are respectively inserted and fastened, the installation portion body is formed with a plurality of fastening grooves communicating with the outlet of the pilot valve; A connecting passage connecting the plurality of fastening grooves to each other and communicating with the inlet of the pilot valve; A working fluid inflow part communicating the working fluid inflow passage and the connecting passage; And a working fluid discharge part communicating the fastening groove and the upper space of the piston, and discharging fluid to the upper space of the piston by the operation of a pilot valve.
  • the servo valve according to the present invention it is possible to obtain an effect of precisely controlling the discharge flow rate by controlling the opening of the through hole formed in the opening / closing part or moving the opening / closing part to open the inlet.
  • FIG. 1 is a cross-sectional view schematically showing a conventional universal cooling valve
  • Figure 2 is a cross-sectional view schematically showing a servo valve according to an embodiment of the present invention
  • FIG. 3 is a cross-sectional view schematically showing a state in which a through hole is opened in an opening / closing portion by operating a driving unit in a servo valve according to an embodiment of the present invention
  • FIG. 4 is a cross-sectional view schematically showing a state in which the inlet is opened by moving the opening and closing part by operating the driving unit in the servo valve according to the embodiment of the present invention
  • FIG. 5 is a view schematically showing a state in which a plurality of pilot valves are installed in a servo valve according to an embodiment of the present invention
  • FIG. 6 is a view schematically showing another embodiment of the movable member in the servo valve according to the embodiment of the present invention.
  • FIG. 7 is a view schematically showing a state in which the filter unit is further provided in the servo valve according to the embodiment of the present invention.
  • FIG. 8 is a view schematically showing a state in which a manual driving unit is further provided in a servo valve according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view schematically showing a servo valve according to an embodiment of the present invention
  • FIG. 3 is a cross-sectional view schematically showing a state in which a through hole is opened and closed by a driving unit operating in the servo valve.
  • 4 is a cross-sectional view schematically showing a state in which the driving unit is further moved to open and close the inlet by moving the opening and closing unit.
  • FIG. 5 is a view schematically showing a state in which a plurality of pilot valves are installed in the servo valve.
  • the servo valve 100 includes a valve body portion 200 having an inlet portion 210 through which fluid flows and an outlet portion 220 through which fluid is discharged. , Inlet 230 communicating the inlet 210 and the outlet 220 in the inside of the valve body 200, and disposed in the inlet 230, and selectively open and close the inlet 230
  • the opening and closing part 300, and a driving unit that operates to open the through hole 311 formed in the opening and closing part 311 to discharge a predetermined flow rate or move the opening and closing part 300 to open the inlet port 230.
  • valve body part 200 is provided in a T-shape, and the inside is formed through, and the inlet part 210 through which the fluid flows in and the outlet part 220 through which the fluid is discharged are formed through both sides. It is formed to communicate with each other by the inlet 230 formed in the middle of the inside of the body portion 200.
  • the inlet 210 is connected to an external fluid inlet line to receive fluid from the valve body portion 200 from the outside, and the outlet 220 is connected to an external fluid outlet line to the inlet 230 When is opened, the fluid flowing in the valve body part 200 is communicated with each other to discharge it to the outside.
  • valve body portion 200 has a pilot unit installation portion 500 described below is fastened to the upper side penetrated with reference to FIG. 2.
  • the opening and closing part 300 is disposed at the inlet port 230 and is provided to selectively open and close the inlet port 230 by the operation of the driving unit.
  • the opening / closing part 300 has an opening / closing plate 310 in which the through hole 311 is formed at the center and opens / closes the inlet 230, the opening / closing plate 310 and the valve body part 200 It is disposed between the opening and closing plate 310 includes an opening and closing portion elastic member 320 for applying an elastic force in close contact with the inlet (230).
  • the opening and closing part 300 is provided at a portion of the opening and closing plate 310 in contact with the inlet port 230, and when the opening and closing plate 310 is in close contact with the inlet port 230, adhesion strength is improved and noise caused by impact is generated. It may further include a sealing member 330 of an elastic material to prevent.
  • the opening and closing part 300 is provided with the sealing member 330 provided on the opening and closing plate 310 by the elastic force of the opening and closing member elastic member 320 when the driving unit is not operated as shown in FIG. 2.
  • the through hole (311) of the opening and closing plate (310) is opened to flow the fluid of the micro flow rate through the through hole (311)
  • the opening / closing plate 310 is moved to open the inlet 230 to discharge more fluid through the inlet 230.
  • the driving unit operates to open the through hole 311 formed in the opening / closing portion 300 so that the fine flow rate is discharged, or to move the opening / closing portion 300 to discharge the more flow rate to open the inlet port 230.
  • the driving part is a piston 410 that moves in close contact with the inner circumferential surface of the valve body part 200 and a through hole 311 of the opening and closing plate 310 that moves together while being fastened to the piston 410.
  • Pilot valve 10 is formed in the valve body part 200 so as to communicate the upper space of the inlet 210 and the piston 410 so that the fluid flows into the upper space of the pressure to pressurize the piston 410
  • the working fluid inflow channel 430 opened and closed by, the upper space 412 of the piston 410 and the discharge portion 220 communicate with the balance hole 411 formed through the piston 410, and
  • the valve body part 200 and the piston 410 The arrangement and comprises a driving elastic member 440 for applying an elastic force in the movable member 420 so as to close the through hole 311.
  • the working fluid is the same as the fluid introduced through the inlet 210, but the fluid introduced through the working fluid inlet 430 to operate the piston 410 is referred to separately.
  • pilot valve 10 may be provided in various types and in various forms, and thus FIGS. 2 to 4 are briefly illustrated, and a specific embodiment of the pilot valve 10 is illustrated in FIG. 5.
  • the movable member 420 is fastened to the piston 410 and provided with a larger diameter than the through-hole 311 to move a certain distance and press the opening / closing plate 310 to move the shaft 421.
  • a disk body 422 provided with a diameter smaller than the shaft 421 and fastened to the end 423 of the shaft 421 is formed to extend outwardly from the disk body 422 to penetrate the hole of the opening / closing plate 310 ( 311) includes a disk provided with a closing portion 424 that is inserted into close contact.
  • the closed portion 424 is formed to have an inclined surface along the circumference, the through hole 311 of the opening and closing plate 310 is provided in a corresponding shape, the closing portion 424 is the through hole ( 311), it can be tightly closed to seal the through hole 311.
  • the pilot valve 10 operates to open the working fluid inflow channel 430.
  • the working fluid is introduced into the upper space 412 of the piston 410, and the piston 410 starts moving downward by the pressure of the introduced working fluid, as shown in FIG. 3, the The disc body 422 is inserted into the through hole 311 of the opening / closing plate 310, and the fine flow rate is primarily discharged through the gap between the disc body 422 and the through hole 311.
  • the piston 410 is further moved to the lower side, the end 423 of the shaft 421 presses the opening / closing plate 310 and moves to the lower side, as shown in FIG. 4, the opening / closing plate ( 310) by opening the inlet 230, it is possible to discharge a larger flow rate secondary.
  • the pilot valve 10 operates again to close the working fluid inlet passage 430, the upper space of the piston 410 No more working fluid is introduced into the 412 and the working fluid stored in the upper space 412 of the piston 410 through the balance hole 411 formed in the piston 410 is the discharge unit 220 ) Is discharged by flowing to the side, the piston 410 is returned to the original position by the elastic force of the elastic member 440, the opening and closing plate 310 is also the upper side by the elastic force of the elastic member 320 of the opening and closing part It moves to close the inlet 230.
  • a guide portion 240 may be further provided on the valve body portion 200 to guide linear movement of the driving portion.
  • the guide portion 240 is provided in a tubular shape having a H-shaped cross-section in the longitudinal direction and inserted into the valve body portion 200 but disposed between the inlet portion 210 and the outlet portion 220 do.
  • the guide portion 240 is the upper space portion 241
  • the piston 410 is disposed to guide the linear movement of the piston 410
  • the lower space portion 242 is the inlet portion 210
  • An outlet 243 is provided on a side surface to communicate with the outlet 220
  • an end of the lower space portion 242 is provided as the inlet 230 so that the opening / closing plate 310 can be provided in close contact therewith. have.
  • the driving member elastic member 440 is supported by the support flange 244 formed at the center of the guide part 240, and the center of the support flange 244 is penetrated, so that the movable member 420 is inserted through it. It is provided to guide the linear movement of the movable member 420.
  • the guide portion 240 is formed with a discharge hole 245 communicating with the upper space portion 241 and the discharge portion 220, through the balance hole 411 formed in the piston 410, the The working fluid flowing into the upper space part 241 may be discharged to the discharge part 220.
  • the guide part 240 may be provided separately and inserted into the valve body part 200, or may be integrally manufactured with the valve body part 200.
  • pilot unit installation part 500 may be provided on the upper side.
  • the pilot unit installation part 500 is fastened to the valve body part 200 and a plurality of pilot valves 10 are respectively inserted and fastened, but a plurality of communication parts are connected to the outlet 12 of the pilot valve 10.
  • the installation part body 510 having a fastening groove 511, a connecting passage 520 connecting the plurality of fastening grooves 511 to each other and communicating with the inlet 11 of the pilot valve 10, the working fluid inflow passage
  • the working fluid inlet 530 communicating with the 430 and the connecting passage 520, and the upper space 412 of the piston 410 and the fastening groove 511 communicate with the pilot valve 10. It includes a working fluid discharge unit 540 for discharging the fluid to the upper space of the piston 410 by.
  • the pilot valve 10 disposed on the left side in FIG. 5 when the pilot valve 10 disposed on the left side in FIG. 5 is provided as a pressure valve, the working fluid is constant to the inlet 11 of the pilot valve 10 through the working fluid inlet 530.
  • the pilot valve 10 When the pressure is exceeded, the pilot valve 10 operates, and the inlet 11 and the outlet 12 of the pilot valve 10 communicate with the working fluid flowing into the inlet 11 of the pilot valve 10. After being discharged to the working fluid discharge part 540 through the discharge port 12, it may be provided to flow into the upper space 412 of the piston 410 and pressurize the piston 410.
  • the pilot valve 10 when the pilot valve 10 is provided to operate at a temperature, it may be provided to operate when the inflowing working fluid is above a certain temperature, or may be provided to operate by receiving an external electronic signal.
  • the pilot valve 10 operating in response to different conditions may be installed on the servo valve 100 through the pilot unit installation part 500 to be provided to operate the servo valve 100 under various conditions. have.
  • the pilot valve 10 may be detached by screwing the pilot unit installation portion 500. Accordingly, after screwing the pilot valve to the pilot unit installation portion 500, the pilot unit installation portion 500 can be fastened to the valve body portion 200. In addition, after separating the pilot unit installation portion 500 from the valve body portion 200, the pilot valve may be disassembled from the pilot unit installation portion 500.
  • FIG. 6 is a view schematically showing another embodiment of the movable member in the servo valve.
  • the movable member according to another embodiment is a configuration in which a pressing member is further added to the movable member 420 described with reference to FIG. 2.
  • the pressing member is provided to press and move the opening and closing plate.
  • the movable member is provided with a shaft 421 fastened to a piston and a disk body provided with a smaller diameter than the shaft 421 and fastened to an end 423 of the shaft 421 422) and the disk body 422 is formed to extend outwardly from the disk opening 310 is inserted into the through hole 311, the disc is provided with a closing portion 424 to close and close, and partially the disk body 422 It is fastened to the outer circumferential surface of the shaft 421 so as to wrap) and includes a pressing member 425 that presses and moves the opening / closing plate 310 when moving a predetermined distance.
  • a communication hole 426 radially penetrated in the region surrounding the disk body 422 is formed in the pressing member 425. Accordingly, when the pressing member 425 is pressed against the opening / closing plate 310, the fluid introduced through the through hole 311 of the opening / closing plate 310 flows to the discharge portion through the communication hole 426 when pressed. do.
  • the opening and closing plate 310 is in a closed state, and the pressing member 425 is in close contact with the opening and closing plate 310 Since the through-hole 311 is also in a closed state, the moment when the pressing member 425 contacts the opening / closing plate 310, the fluid is temporarily not flowed. Therefore, in the present invention, it is possible to prevent this phenomenon by forming a communication hole 426 in the pressing member 425.
  • the pressing member 425 may be fastened to the shaft 421 by a screw fastening method or the like so that the gap with the opening / closing plate 310 is adjusted.
  • the separation distance between the through hole 311 and the closing portion 424 may be adjusted to control the flow rate of the fluid discharged through the through hole 311.
  • the gap between the pressing member 425 and the opening / closing plate 310 is narrowed, the separation gap between the through hole 311 and the closing portion 424 is narrowed, and discharged from the region discharging the fine flow rate. Since the interval adjustment range becomes small, the adjustment range of the fine flow rate becomes small.
  • the gap between the opening and closing plate 310 and the pressing member 425 can be adjusted and fastened.
  • the opening / closing plate 310 protrudes from the periphery of the through hole 311 toward the pressing member 425 to contact the inner circumferential surface of the pressing member 425
  • the protruding guide portion 312 may be formed.
  • the protruding guide portion 312 contacts the inner circumferential surface of the pressing member 425, and thus the opening / closing plate ( 310) can be prevented from shaking.
  • FIG. 7 is a view schematically showing a state in which a filter part is further provided in the servo valve.
  • the filter unit 600 is disposed at the inlet 230 to surround the opening / closing plate 310 and can filter foreign substances contained in the fluid flowing through the inlet 230.
  • the through hole 311 and closing portion 424 of the opening and closing plate 310 It is possible to prevent foreign substances from being trapped or accumulated between and adversely affecting fine flow control.
  • FIG. 8 is a view schematically showing a state in which the manual driving unit is further provided in the servo valve.
  • the manual driving part 700 is disposed above the piston 410 in the valve body part 200 and is provided to press and move the piston 410 by a user's manipulation. That is, when more precise fine flow adjustment is needed or when a constant flow rate needs to be continuously discharged, the user can operate the manual driving unit 700 to precisely control it, without operating the driving unit.
  • the manual driving part 700 includes a driving part housing 710 fastened to the valve body part 200 and an operating member 720 that is provided to be rotated in the driving part housing 710 and rotated by a user's manipulation. ), And a pressure rod disposed inside the driving part housing 710 to penetrate the valve body part 200 and move linearly in response to rotation of the operation member 720 and selectively pressurize the piston 410 730.
  • At least one of the pressing rod 730 and the operation member 720 is marked with a scale (S).
  • the pressing rod 730 moves linearly to move the piston 410 a desired distance to move the through hole.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

La présente invention concerne une servo-vanne apte à réguler avec précision un débit d'évacuation, la servo-vanne comprenant : une unité corps de vanne pourvue d'une partie entrée à travers laquelle un fluide s'écoule et d'une partie évacuation à travers laquelle le fluide est évacué ; un orifice d'entrée en communication avec la partie entrée et la partie évacuation à l'intérieur de l'unité corps de vanne ; une unité d'ouverture/fermeture disposée dans l'orifice d'entrée et ouvrant et fermant sélectivement l'orifice d'entrée ; et une unité d'entraînement qui fonctionne pour ouvrir l'orifice d'entrée en ouvrant un trou traversant ménagé dans l'unité d'ouverture/fermeture ou en déplaçant l'unité d'ouverture/fermeture de telle sorte qu'un certain débit est évacué. Grâce à la configuration décrite ci-dessus, un effet peut être obtenu dans lequel le débit d'évacuation peut être régulé avec précision en effectuant une commande pour ouvrir l'orifice d'entrée en ouvrant le trou traversant ménagé dans l'unité d'ouverture/fermeture ou en déplaçant l'unité d'ouverture/fermeture.
PCT/KR2018/011551 2018-09-11 2018-09-28 Servo-vanne WO2020054900A1 (fr)

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Application Number Priority Date Filing Date Title
KR1020180108153A KR102063226B1 (ko) 2018-09-11 2018-09-11 서보 밸브
KR10-2018-0108153 2018-09-11

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WO2020054900A1 true WO2020054900A1 (fr) 2020-03-19

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Publication number Priority date Publication date Assignee Title
EP3418635B1 (fr) * 2017-06-20 2021-05-19 Honeywell Technologies Sarl Soupape de gaz et dispositif de régulation de gaz
KR102300883B1 (ko) * 2021-05-17 2021-09-13 김운태 전자제어식 유체흐름 개폐 장치

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Publication number Priority date Publication date Assignee Title
JPS5183840U (fr) * 1974-12-27 1976-07-06
JPH06213016A (ja) * 1993-01-22 1994-08-02 Jidosha Kiki Co Ltd 排気通路の開閉バルブ装置
JP2008500237A (ja) * 2004-05-21 2008-01-10 ベンディックス コマーシャル ヴィヒクル システムズ リミテッド ライアビリティ カンパニー 単一３／２ソレノイド制御式リレー弁のための制御モジュール
JP2014092144A (ja) * 2012-11-07 2014-05-19 Aisan Ind Co Ltd 排気還流バルブ
KR20180050061A (ko) * 2016-11-04 2018-05-14 주식회사 협신금속 시동 공기 밸브

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Publication number Priority date Publication date Assignee Title
US7669609B2 (en) 2006-06-08 2010-03-02 Parker-Hannifin Corporation Universal refrigeration valve
US9920857B2 (en) * 2013-10-30 2018-03-20 Fujikin Incorporated Vacuum valve
KR101782426B1 (ko) * 2015-10-28 2017-10-23 주식회사 코밸 테스트 개그가 구비되는 릴리프 밸브의 작동 제어기구

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5183840U (fr) * 1974-12-27 1976-07-06
JPH06213016A (ja) * 1993-01-22 1994-08-02 Jidosha Kiki Co Ltd 排気通路の開閉バルブ装置
JP2008500237A (ja) * 2004-05-21 2008-01-10 ベンディックス コマーシャル ヴィヒクル システムズ リミテッド ライアビリティ カンパニー 単一３／２ソレノイド制御式リレー弁のための制御モジュール
JP2014092144A (ja) * 2012-11-07 2014-05-19 Aisan Ind Co Ltd 排気還流バルブ
KR20180050061A (ko) * 2016-11-04 2018-05-14 주식회사 협신금속 시동 공기 밸브

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