WO2001048408A1 - Soupape a piston - Google Patents

Soupape a piston Download PDF

Info

Publication number
WO2001048408A1
WO2001048408A1 PCT/JP2000/004120 JP0004120W WO0148408A1 WO 2001048408 A1 WO2001048408 A1 WO 2001048408A1 JP 0004120 W JP0004120 W JP 0004120W WO 0148408 A1 WO0148408 A1 WO 0148408A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
flow path
port
operating force
stem
Prior art date
Application number
PCT/JP2000/004120
Other languages
English (en)
Japanese (ja)
Inventor
Hironobu Ichimaru
Original Assignee
Ichimaru Giken Co., Ltd.
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 Ichimaru Giken Co., Ltd. filed Critical Ichimaru Giken Co., Ltd.
Priority to AU54295/00A priority Critical patent/AU5429500A/en
Publication of WO2001048408A1 publication Critical patent/WO2001048408A1/fr

Links

Classifications

    • 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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats

Definitions

  • the present invention relates to a biston valve used for a piping system in which a fluid to be used is high-pressure, high-temperature water or steam, such as a tire vulcanizing brand. Background technology
  • a valve stem 20 is connected to a reciprocating biston 1, and a valve body 20 is attached to the tip of the valve stem 20.
  • the main flow path 40 is connected to the valve body 3, the first flow path 41 communicates with the main flow path 40 via the first valve port 4a, and the second valve port 4 is connected to the main flow path 40.
  • a second flow path 42 communicating with b is formed.
  • the tip of the valve stem 20 is attached to one side of the valve body 2. Therefore, fluid pressure is applied to the entire area of the distal end face of the valve body 2, while fluid pressure is applied to the area of the valve stem 20 on the side of the valve stem 20 from the valve stem 20.
  • the operating force F 1 was smaller than the operating force F 2.
  • valve element closes the second valve port and the piston operates due to the operation of the piston.
  • the valve moves forward, when the valve element separates from the second valve port, in addition to the actuation force of the biston, a difference between the actuation force F1 and the actuation force F2 due to the fluid pressure is applied, and the actuation force changes rapidly.
  • An object of the present invention is to provide a biston valve that can operate a piston smoothly without being affected by fluid pressure. Disclosure of the invention
  • the biston valve of the present invention is
  • the valve body is connected to the cylinder body in which the reciprocating biston is provided,
  • a second flow path communicating with the main flow path via a second valve port is formed, and a valve stem connected to the biston is slidably supported by the cylinder body, and the valve stem is located inside the valve body.
  • the valve body is attached to the tip of this valve stem,
  • the valve reciprocates between the first valve port and the second valve port with the reciprocation of the biston, and the main flow path and the second flow path communicate with the first valve port closed by the valve element.
  • the main flow path and the first flow path communicate with each other when the second valve port is closed by the body,
  • a valve opening is connected to the valve body in the direction opposite to the valve stem, and the valve rod is slidably supported by the valve body.
  • the cross-sectional area of the valve stem and the cross-sectional area of the valve port are made substantially the same so that the operating force for pressing the valve body in the forward direction and the operating force for pressing the valve body in the backward direction are substantially the same.
  • the configuration is as follows.
  • a valve port 22 is connected to the valve body 2 by extending in the opposite direction to the valve stem 20, and a cross-sectional area of the valve port 22 is provided.
  • the feature is that the cross-sectional area (diameter A 2) of the (diameter A 3) and the valve stem 20 is substantially the same.
  • a small-diameter portion is formed at the distal end portion of the valve stem and / or at the proximal end portion of the valve rod (claim 2).
  • a large gap can be formed between the first valve port and the valve stem and between the second valve port and the valve port with the valve body opened, and the valve port can be opened. Fluid flow passing through can be smoothed.
  • step portions are formed facing each other, so that the fluid pressures cancel each other out and are not affected by the fluid pressure.
  • FIG. 1 is a cross-sectional view of a bistone valve according to one embodiment of the present invention.
  • Figure 2 is a schematic diagram for c
  • Figure 3 is a schematic diagram for explaining the action of bis Tonbarubu of the present invention illustrating the operation of a conventional screw Tonbarubu.
  • FIG. 1 is a cross-sectional view of a biston valve according to one embodiment of the present invention.
  • the piston valve includes a cylinder body 5 and a valve body 3 connected to the cylinder body 5.
  • a biston 1 which moves forward by the air pressure from the air inlet hole 51 and moves backward by the bias of the panel 21.
  • the valve 1 is connected to a valve stem 20 that is slidably supported by the cylinder body 5 and extends into the valve body 3.
  • the valve stem 2 is provided at the tip of the valve stem 20.
  • Reference numeral 23 denotes a seal portion.
  • the valve element 2 reciprocates between the first valve port 4a and the second valve port 4b with the reciprocal movement of the piston 1.In this case, the valve 1 is moved forward by pneumatic pressure.
  • the main flow path 40 and the second flow path 42 communicate with each other, and conversely, the piston 1 is moved back by the bias of the panel 21 and the valve body 2 is closed.
  • the second valve port 4b is closed, the flow path can be switched so that the main flow path 40 and the first flow path 41 communicate with each other.
  • a base end of a valve rod 22 slidably supported by the valve body 3 is connected to the valve body 2 so as to extend in a direction opposite to the valve stem 20.
  • the diameter of the valve stem 20 and the diameter of the valve stem 20 are made the same so that the cross-sectional area of the valve port 22 and the cross-sectional area of the valve stem 20 are the same.
  • the overhang area (A 1—A 2) of the valve body 2 from the valve stem 20 and the overhang area (A 1 -A 3) of the valve body 2 from the valve port 22 are the same.
  • small-diameter portions 20a and 22a longer than the stroke of the valve body 2 are formed at the distal end portion of the valve stem 20 and the proximal end portion of the valve rod 22, respectively.
  • a valve rod 22 is connected to the valve body 2 so as to extend in a direction opposite to the valve stem 20.
  • the operating force F1 and the operating force F2 are balanced and are not affected by the fluid pressure, and the piston 1 can be operated smoothly.
  • valve body 2 is opened, and between the first valve port 4 a and the valve rod 22 and between the second valve port 4 b and the valve stem 20. Between the valve ports 4a and 4b can be made smooth.
  • step portions 20a, 22a, step portions 20b, 20b and step portions 22b, 22b are formed facing each other. It is canceled out and is not affected by fluid pressure.
  • valve stem and the valve rod may be formed on a straight plate. Even if a large-diameter portion is formed, the fluid pressures cancel each other out and are not affected by the fluid pressure.
  • the piston valve of the present invention since the operating force in the forward direction and the operating force in the backward direction received by the valve body are the same, the piston valve is not affected by the fluid pressure.
  • the piston can be smoothly reciprocated.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Lift Valve (AREA)
  • Fluid-Driven Valves (AREA)
  • Multiple-Way Valves (AREA)

Abstract

L'invention concerne une soupape à piston capable d'actionner doucement un piston sans être affectée par une pression hydraulique avec l'équilibre d'une force d'actionnement mettant sous pression un disque de soupape dans le sens avant et une force d'actionnement le mettant sous pression dans le sens arrière, le disque de soupape (2) étant déplacé dans un mouvement de va-et-vient entre un premier (4a) et un second orifice de soupape (4b) selon le mouvement du va-et-vient du piston (1) de manière à faire communiquer un passage d'écoulement principal (40) avec un second passage d'écoulement (42) lorsque le premier orifice de soupape est fermé et à faire communiquer le passage d'écoulement principal avec un premier passage d'écoulement (41) lorsque le second orifice de soupape (4b) est fermé, l'extrémité de base d'une tige de soupape (22) étant reliée au disque de soupape par extension de la tige dans le sens opposé d'une tige de soupape (20), et la zone en section transversale de la tige de soupape (20) étant sensiblement égale à la tige de soupape (22) de manière que la force d'actionnement mettant sous pression le disque de soupape dans un sens avant devienne sensiblement égale à celle le mettant sous pression dans le sens arrière.
PCT/JP2000/004120 1999-12-24 2000-06-22 Soupape a piston WO2001048408A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU54295/00A AU5429500A (en) 1999-12-24 2000-06-22 Piston valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11/366883 1999-12-24
JP36688399A JP2001182842A (ja) 1999-12-24 1999-12-24 ピストンバルブ

Publications (1)

Publication Number Publication Date
WO2001048408A1 true WO2001048408A1 (fr) 2001-07-05

Family

ID=18487931

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/004120 WO2001048408A1 (fr) 1999-12-24 2000-06-22 Soupape a piston

Country Status (3)

Country Link
JP (1) JP2001182842A (fr)
AU (1) AU5429500A (fr)
WO (1) WO2001048408A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114165621A (zh) * 2021-12-17 2022-03-11 湖南卓誉科技有限公司 一种活塞式换向阀

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104315197A (zh) * 2014-09-26 2015-01-28 中色科技股份有限公司 一种紧凑型两位两通气控平座阀

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS533481Y2 (fr) * 1974-09-13 1978-01-28
JPS5331454Y2 (fr) * 1974-08-05 1978-08-05
JPS5449616A (en) * 1977-09-07 1979-04-19 Fram Corp Air control valve
JPS55177559U (fr) * 1979-06-07 1980-12-19
JPS5612174U (fr) * 1980-07-10 1981-02-02
JPH01503321A (ja) * 1986-12-16 1989-11-09 マラソン・オイル・カンパニー 低圧制御下での高圧流体切換え用高速、高温３方向弁
JPH0432928B2 (fr) * 1984-07-17 1992-06-01 Niigata Engineering Co Ltd

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331454Y2 (fr) * 1974-08-05 1978-08-05
JPS533481Y2 (fr) * 1974-09-13 1978-01-28
JPS5449616A (en) * 1977-09-07 1979-04-19 Fram Corp Air control valve
JPS55177559U (fr) * 1979-06-07 1980-12-19
JPS5612174U (fr) * 1980-07-10 1981-02-02
JPH0432928B2 (fr) * 1984-07-17 1992-06-01 Niigata Engineering Co Ltd
JPH01503321A (ja) * 1986-12-16 1989-11-09 マラソン・オイル・カンパニー 低圧制御下での高圧流体切換え用高速、高温３方向弁

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114165621A (zh) * 2021-12-17 2022-03-11 湖南卓誉科技有限公司 一种活塞式换向阀

Also Published As

Publication number Publication date
AU5429500A (en) 2001-07-09
JP2001182842A (ja) 2001-07-06

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