EP1070854A2 - Distributeur - Google Patents

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Publication number
EP1070854A2
EP1070854A2 EP00250229A EP00250229A EP1070854A2 EP 1070854 A2 EP1070854 A2 EP 1070854A2 EP 00250229 A EP00250229 A EP 00250229A EP 00250229 A EP00250229 A EP 00250229A EP 1070854 A2 EP1070854 A2 EP 1070854A2
Authority
EP
European Patent Office
Prior art keywords
switching means
valve
chambers
multiway valve
valve according
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP00250229A
Other languages
German (de)
English (en)
Other versions
EP1070854A3 (fr
Inventor
Peter Fagerstroem
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bosch Rexroth Teknik AB
Original Assignee
Atecs Mannesmann GmbH
Bosch Rexroth Teknik AB
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 Atecs Mannesmann GmbH, Bosch Rexroth Teknik AB filed Critical Atecs Mannesmann GmbH
Publication of EP1070854A2 publication Critical patent/EP1070854A2/fr
Publication of EP1070854A3 publication Critical patent/EP1070854A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves

Definitions

  • This invention relates to a multiway valve for controlling the fluid flow of a pressure medium.
  • the disclosed 3/2-way-valve has a valve housing by which the valve is mountable on sub-bases. On the valve housing one supply port for compressed air, one delivery port, and one exhaust port are disposed. The valve has two switching positions; “opened” and “closed”, and it is controlled by air pressure.
  • the valve housing is provided with an axial hole which has a plurality of steps to form inner seat elements and chambers. The chambers are connected with the outer ports.
  • the fluid flow of the pressure medium is controlled by the seat elements and a valve tappet as means for switching. Therefore the movable valve tappet is axially guided in said hole.
  • valve tappet To move the valve tappet in an axially manner, its one end is formed as a piston.
  • the piston works together with a cylindrical control-chamber integrated in the valve housing so that the switching position of the valve is controllable by air pressure.
  • a spring is disposed between the valve tappet and the valve housing.
  • the 3/2-way-valve is often used in addition to a single-acting cylinder.
  • a single-acting cylinder is driven by a pressure medium, e.g. air pressure, in one direction and a built-in spring in the other direction and can only perform work in the direction that is driven by the pressure medium. Therefore the pressure chamber of the cylinder is connected with the delivery port of the valve over a delivery conduit.
  • the delivery port of the valve is connected with its supply port in order to move outwardly the piston rod of the cylinder against the force of its built-in spring.
  • the exhaust port is cut off. For moving the piston rod of the cylinder inwardly, the delivery port is connected with the exhaust port and the supply port is cut off.
  • the built-in spring of the cylinder moves the piston rod into the direction desired.
  • the invention provides at least two chambers in the valve housing only for the delivery conduit and also at least two chambers only for the exhaust conduct.
  • the invention allows a high flow rate of a multiway valve. Furthermore, this valve has a relatively small valve housing and switching means.
  • the chambers for the delivery conduct and/or the chambers for the exhaust conduct are interconnected via fluid channels disposed in the valve housing. Moreover, only three ports are needed (one supply port, one delivery port, one exhaust port) on the valve housing. This integrated solution requires a delivery port and an exhaust port of a larger size. A supply port of a larger size is not necessary because the pressed supply air does not need a channel or a conduct with a large cross-section.
  • valve housing has five ports (one supply port, two parallel delivery ports, two parallel exhaust ports). This valve is more flexible in special applications.
  • the switching means comprise a cylindrical valve slide with radial grooves for routing the fluid flow. Annular seals are disposed in corresponding seal-grooves on the outer surface of said slide for sealing said slide in the valve housing. It is also possible to dispose the seals inside the hole of the housing.
  • the switching means comprise at least one valve tappet that works together with corresponding valve seats located in the valve housing.
  • the means for moving the switching means comprise a piston that is guided in a control-chamber at one end of said switching means.
  • the control-chamber works together with a return spring disposed at the other end of the switching means to form a mono-stable valve.
  • a bi-stable valve it is possible to dispose two pistons with corresponding chambers on both ends of e.g. a slide as switching means.
  • the means for moving the switching means comprise an electromagnet with an armature connected with the switching means.
  • the multiway valve shown in Fig.1a has a valve housing 1 which is provided with the usual ports for pressure air to connect outer conduits. Therefore, one port 2 allows to connect the supply conduct of a pressure air source, two ports 3a and 3b are connected with the delivery conduit and two ports 4a and 4b are connected with the exhaust conduit or with a silencer. To get a high flow through the valve housing the delivery ports 3a and 3b and the exhaust ports 4a and 4b are arranged in pairs. Inside the valve housing 1 there is a slide 5 as switching element, said slide 5 is axially movable. The position of the slide 5 inside the valve housing 1 is controlled by supply of control fluid into a control-chamber 6 which is located at one end of the slide 5 and presses against the action of a return spring 7.
  • one end of the slide 5 is formed like a piston 8.
  • the return spring 7 is disposed at the other end of the slide 5.
  • the inner section of the valve housing 1 is substantially shaped as a hole which has a plurality of steps 9 forming inner chambers for the corresponding outer ports 2, 3a, 3b, 4a and 4b.
  • the slide 5 has annular seals 10 which are disposed in corresponding seal-grooves on the outer surface of slide 5.
  • the function of the above described multiway valve (where Fig.1a shows the position of the slide) is such that the pressured air in the supply port 2 flows into an annular chamber outwardly the mid portion of the slide 5, from where the air is delivered through the delivery ports 3a and 3b to a consumer such as a working cylinder. In this situation the control-chamber 6 is released and the slide 5 is returned because of the spring action of the return spring 7.
  • Fig.2a shows a 5/2 normally-open mono-stable valve for a special application.
  • the numerical indices in the Fig.2a to 2c describe the following ports:
  • Such a valve is preferably used instead of two 3/2-valves if a high flow rate for a high speed of the piston rod is needed for a single acting cylinder.
  • the 5/2 normally-open mono-stable valve is used for the control of two single acting cylinders which have to work simultaneously. This application ensures that both cylinders move at the same time.
  • Fig.2c shows a 5/2 normally-open/normally-close bi-stable valve which is connected with one single acting cylinder for getting a higher flow rate than a 5/2 bi-stable valve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Multiple-Way Valves (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fluid-Driven Valves (AREA)
EP00250229A 1999-07-19 2000-07-12 Distributeur Withdrawn EP1070854A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19934053A DE19934053C2 (de) 1999-07-19 1999-07-19 Mehrwegeventil
DE19934053 1999-07-19

Publications (2)

Publication Number Publication Date
EP1070854A2 true EP1070854A2 (fr) 2001-01-24
EP1070854A3 EP1070854A3 (fr) 2003-07-09

Family

ID=7915446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00250229A Withdrawn EP1070854A3 (fr) 1999-07-19 2000-07-12 Distributeur

Country Status (3)

Country Link
EP (1) EP1070854A3 (fr)
JP (1) JP2001050406A (fr)
DE (1) DE19934053C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2243964A3 (fr) * 2009-04-24 2014-04-09 Nordhydraulic AB Vanne de contrôle
CN104500478A (zh) * 2014-12-19 2015-04-08 林东亮 气动自动换向阀、气动换向器及其使用方法
CN108167249A (zh) * 2017-11-14 2018-06-15 武汉船用机械有限责任公司 带单向阀的速度切换阀
CN108361234A (zh) * 2018-02-10 2018-08-03 宁波市博尔法液压有限公司 一种具有智能流量控制的多路阀装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100669226B1 (ko) * 2005-01-07 2007-01-15 주식회사 이스텍 메털터치용 솔레노이드밸브
JP2017115962A (ja) * 2015-12-24 2017-06-29 株式会社デンソー 電磁スプール弁

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3563272A (en) * 1966-12-05 1971-02-16 Jean Mercier Servocontrol valve and system
US4587991A (en) * 1983-02-08 1986-05-13 Chorkey William J Valve with uniplanar flow
JPH0440053Y2 (fr) * 1984-12-18 1992-09-18
US5598871A (en) * 1994-04-05 1997-02-04 Sturman Industries Static and dynamic pressure balance double flow three-way control valve
DE19629218B4 (de) * 1996-07-19 2005-10-06 Horst Rohn Ventilkolben für ein als 4/3-Wege-Ventil ausgebildetes lineares Schieberventil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2243964A3 (fr) * 2009-04-24 2014-04-09 Nordhydraulic AB Vanne de contrôle
CN104500478A (zh) * 2014-12-19 2015-04-08 林东亮 气动自动换向阀、气动换向器及其使用方法
CN104500478B (zh) * 2014-12-19 2016-06-08 林东亮 气动自动换向阀、气动换向器及其使用方法
CN108167249A (zh) * 2017-11-14 2018-06-15 武汉船用机械有限责任公司 带单向阀的速度切换阀
CN108361234A (zh) * 2018-02-10 2018-08-03 宁波市博尔法液压有限公司 一种具有智能流量控制的多路阀装置
CN108361234B (zh) * 2018-02-10 2020-04-07 宁波市博尔法液压有限公司 一种具有智能流量控制的多路阀装置

Also Published As

Publication number Publication date
DE19934053C2 (de) 2002-12-12
JP2001050406A (ja) 2001-02-23
EP1070854A3 (fr) 2003-07-09
DE19934053A1 (de) 2001-02-01

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