DE102004048689B3 - Zweistufiges Servoventil - Google Patents

Zweistufiges Servoventil Download PDF

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Publication number
DE102004048689B3
DE102004048689B3 DE200410048689 DE102004048689A DE102004048689B3 DE 102004048689 B3 DE102004048689 B3 DE 102004048689B3 DE 200410048689 DE200410048689 DE 200410048689 DE 102004048689 A DE102004048689 A DE 102004048689A DE 102004048689 B3 DE102004048689 B3 DE 102004048689B3
Authority
DE
Germany
Prior art keywords
stage
points
variable
circuit
servo valve
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.)
Expired - Fee Related
Application number
DE200410048689
Other languages
English (en)
Inventor
Andre-Heinrich Meinhof
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE200410048689 priority Critical patent/DE102004048689B3/de
Priority to US11/664,740 priority patent/US7757714B2/en
Priority to EP20050797287 priority patent/EP1797338B1/de
Priority to CNB200580033764XA priority patent/CN100526659C/zh
Priority to DE200550005145 priority patent/DE502005005145D1/de
Priority to PCT/EP2005/055030 priority patent/WO2006037793A1/de
Application granted granted Critical
Publication of DE102004048689B3 publication Critical patent/DE102004048689B3/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/006Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/30Directional control
    • F15B2211/305Directional control characterised by the type of valves
    • F15B2211/30525Directional control valves, e.g. 4/3-directional control valve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/30Directional control
    • F15B2211/31Directional control characterised by the positions of the valve element
    • F15B2211/3105Neutral or centre positions
    • F15B2211/3111Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/30Directional control
    • F15B2211/31Directional control characterised by the positions of the valve element
    • F15B2211/3144Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/30Directional control
    • F15B2211/315Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31576Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/30Directional control
    • F15B2211/32Directional control characterised by the type of actuation
    • F15B2211/329Directional control characterised by the type of actuation actuated by fluid pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/30Directional control
    • F15B2211/355Pilot pressure control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/40Flow control
    • F15B2211/405Flow control characterised by the type of flow control means or valve
    • F15B2211/40507Flow control characterised by the type of flow control means or valve with constant throttles or orifices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/40Flow control
    • F15B2211/405Flow control characterised by the type of flow control means or valve
    • F15B2211/40515Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/50Pressure control
    • F15B2211/505Pressure control characterised by the type of pressure control means
    • F15B2211/50563Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/50Pressure control
    • F15B2211/515Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5151Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a directional control valve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/50Pressure control
    • F15B2211/52Pressure control characterised by the type of actuation
    • F15B2211/526Pressure control characterised by the type of actuation electrically or electronically
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/50Pressure control
    • F15B2211/575Pilot pressure control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/80Other types of control related to particular problems or conditions
    • F15B2211/86Control during or prevention of abnormal conditions
    • F15B2211/863Control during or prevention of abnormal conditions the abnormal condition being a hydraulic or pneumatic failure
    • F15B2211/8633Pressure source supply failure
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86493Multi-way valve unit
    • Y10T137/86574Supply and exhaust
    • Y10T137/86582Pilot-actuated
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86493Multi-way valve unit
    • Y10T137/86574Supply and exhaust
    • Y10T137/86582Pilot-actuated
    • Y10T137/8659Variable orifice-type modulator
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86493Multi-way valve unit
    • Y10T137/86574Supply and exhaust
    • Y10T137/86582Pilot-actuated
    • Y10T137/86614Electric

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Servomotors (AREA)
  • Fluid-Driven Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

Die Erfindung betrifft ein zweistufiges Servoventil mit einer ersten Stufe, in der vier Strömungswiderstände, von denen mindestens ein Strömungswiderstand veränderlich ist, in einer Brückenschaltung angeordnet sind, wobei zwei gegenüberliegende Schaltungspunkte der Brückenschaltung mit Zuluft bzw. Abluft verbunden sind und zwischen den beiden anderen Schaltungspunkten eine in Größe und Vorzeichen veränderliche Druckdifferenz bereitsteht, und mit einer zweiten Stufe, in der ein von der Druckdifferenz betätigbarer Steuerkolben angeordnet ist, der ein Dreiwegeventil steuert. DOLLAR A Um mit einfachsten Mitteln bei Ausfall der elektrischen Energie das Halten der aktuellen Position eines von dem Servoventil (1) angesteuerten Prozessventils zu ermöglichen, sind die die Druckdifferenz bereitstellenden Schaltungspunkte (10, 11) über ein Mangnetventil (17) miteinander verbunden, das im angesteuerten Zustand geschlossen ist und im nicht angeschlossenen Zustand geöffnet ist und dabei die Schaltungspunkte (10, 11) pneumatisch miteinander verbindet.
DE200410048689 2004-10-06 2004-10-06 Zweistufiges Servoventil Expired - Fee Related DE102004048689B3 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE200410048689 DE102004048689B3 (de) 2004-10-06 2004-10-06 Zweistufiges Servoventil
US11/664,740 US7757714B2 (en) 2004-10-06 2005-10-05 Two-stage servo-valve
EP20050797287 EP1797338B1 (de) 2004-10-06 2005-10-05 Zweistufiges servoventil
CNB200580033764XA CN100526659C (zh) 2004-10-06 2005-10-05 双级伺服阀
DE200550005145 DE502005005145D1 (de) 2004-10-06 2005-10-05 Zweistufiges servoventil
PCT/EP2005/055030 WO2006037793A1 (de) 2004-10-06 2005-10-05 Zweistufiges servoventil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410048689 DE102004048689B3 (de) 2004-10-06 2004-10-06 Zweistufiges Servoventil

Publications (1)

Publication Number Publication Date
DE102004048689B3 true DE102004048689B3 (de) 2005-10-20

Family

ID=35034359

Family Applications (2)

Application Number Title Priority Date Filing Date
DE200410048689 Expired - Fee Related DE102004048689B3 (de) 2004-10-06 2004-10-06 Zweistufiges Servoventil
DE200550005145 Active DE502005005145D1 (de) 2004-10-06 2005-10-05 Zweistufiges servoventil

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE200550005145 Active DE502005005145D1 (de) 2004-10-06 2005-10-05 Zweistufiges servoventil

Country Status (5)

Country Link
US (1) US7757714B2 (de)
EP (1) EP1797338B1 (de)
CN (1) CN100526659C (de)
DE (2) DE102004048689B3 (de)
WO (1) WO2006037793A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011000515A1 (de) * 2009-06-29 2011-01-06 Robert Bosch Gmbh Ventilanordnung
DE102011007629B3 (de) * 2011-04-18 2012-09-27 Siemens Aktiengesellschaft Elektropneumatischer Stellungsregler

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090283160A1 (en) 2008-05-02 2009-11-19 James Fishwick Fluid flow control device and control circuit
US9387440B2 (en) 2011-09-30 2016-07-12 General Electric Company Desalination system with energy recovery and related pumps, valves and controller
US9644761B2 (en) 2011-09-30 2017-05-09 General Electric Company Desalination system with energy recovery and related pumps, valves and controller
US9897080B2 (en) 2012-12-04 2018-02-20 General Electric Company Rotary control valve for reverse osmosis feed water pump with energy recovery
US9638179B2 (en) 2012-12-04 2017-05-02 General Electric Company Hydraulic control system for a reverse osmosis hydraulic pump
DE102017207414A1 (de) * 2017-05-03 2018-11-08 Festo Ag & Co. Kg Pneumatische Steuervorrichtung und damit ausgestattete Prozesssteuervorrichtung
CN113359559B (zh) * 2021-06-15 2022-03-29 威海新北洋技术服务有限公司 控制电路及储物装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135822A1 (de) * 1991-02-14 1992-08-20 Rexroth Mannesmann Gmbh Piezogesteuerter duesenwiderstand fuer hydraulikgeraete, insbesondere fuer pilotaufgaben bei servoventilen
DE4201442A1 (de) * 1992-01-21 1995-01-05 Wolfgang Offenwanger Elektronisch geregeltes direkt betätigtes 3-Wege-Druckregelventil für gasförmige und flüssige Medien
EP0943812A1 (de) * 1998-03-18 1999-09-22 Hygrama Ag Piezoelektrisches Ventil

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US1913516A (en) * 1929-07-25 1933-06-13 I P Morris And De La Vergne In Governor system
US2605079A (en) * 1946-06-19 1952-07-29 Elliott Bay Mill Co Piston valve
US2886009A (en) * 1955-11-29 1959-05-12 Northrop Aircraft Inc Electro-hydraulic servo assembly with fail-safe structure
US2941515A (en) * 1956-02-13 1960-06-21 Moog Servocontrols Inc Dual input servo valve
US2924241A (en) * 1956-11-30 1960-02-09 Ex Cell O Corp Electro hydraulic servo valve
US3282552A (en) * 1963-08-28 1966-11-01 Sr Julian J Sommese Hydraulic valve and control means therefor
CH528693A (de) * 1970-09-01 1972-09-30 Sulzer Ag Sicherheitsvorrichtung mit einem Ventil, vorzugsweise Absperrventil
US3712339A (en) * 1970-11-10 1973-01-23 Rexroth G Lohrer Eisenwerk Gmb Regulating apparatus with throttle gaps
JPS50153321A (de) * 1974-05-31 1975-12-10
FR2453306B1 (fr) * 1979-04-06 1986-03-14 Dba Dispositif d'actionnement hydraulique a cinq positions
US4852850A (en) * 1987-05-14 1989-08-01 Westinghouse Electric Corp. Valve system with adjustable seating force
JP2532081B2 (ja) * 1987-01-30 1996-09-11 日産自動車株式会社 パワ−ステアリングの油圧制御装置
US4883091A (en) * 1988-12-27 1989-11-28 Ross Operating Valve Company Multi-port self-regulating proportional pressure control valve
BR0311228A (pt) 2002-05-24 2005-03-15 Metso Lindemann Gmbh Controle hidráulico de um sistema hidráulico, principalmente para operar cortadores de sucata
US20070169471A1 (en) 2004-02-10 2007-07-26 Continental Teves Ag & Co., Ohg Vehicle steering mechanism
DE102004035844B3 (de) 2004-07-23 2005-10-20 Siemens Ag Servoventil
DE102004038380B4 (de) * 2004-08-06 2013-04-04 Bosch Rexroth Aktiengesellschaft Pilotventil, insbesondere für Servoventile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135822A1 (de) * 1991-02-14 1992-08-20 Rexroth Mannesmann Gmbh Piezogesteuerter duesenwiderstand fuer hydraulikgeraete, insbesondere fuer pilotaufgaben bei servoventilen
DE4201442A1 (de) * 1992-01-21 1995-01-05 Wolfgang Offenwanger Elektronisch geregeltes direkt betätigtes 3-Wege-Druckregelventil für gasförmige und flüssige Medien
EP0943812A1 (de) * 1998-03-18 1999-09-22 Hygrama Ag Piezoelektrisches Ventil

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011000515A1 (de) * 2009-06-29 2011-01-06 Robert Bosch Gmbh Ventilanordnung
DE102011007629B3 (de) * 2011-04-18 2012-09-27 Siemens Aktiengesellschaft Elektropneumatischer Stellungsregler
WO2012143265A1 (de) 2011-04-18 2012-10-26 Siemens Aktiengesellschaft Elektropneumatischer stellungsregler
CN103477093B (zh) * 2011-04-18 2015-11-25 西门子公司 电动气动的位置调节器
US9534617B2 (en) 2011-04-18 2017-01-03 Siemens Aktiengesellschaft Electropneumatic position regulator

Also Published As

Publication number Publication date
CN101035990A (zh) 2007-09-12
EP1797338A1 (de) 2007-06-20
WO2006037793A1 (de) 2006-04-13
US20080066814A1 (en) 2008-03-20
US7757714B2 (en) 2010-07-20
EP1797338B1 (de) 2008-08-20
CN100526659C (zh) 2009-08-12
DE502005005145D1 (de) 2008-10-02

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Date Code Title Description
8100 Publication of patent without earlier publication of application
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee