EP1253326A3 - Pneumatic valve - Google Patents

Pneumatic valve Download PDF

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Publication number
EP1253326A3
EP1253326A3 EP02090158A EP02090158A EP1253326A3 EP 1253326 A3 EP1253326 A3 EP 1253326A3 EP 02090158 A EP02090158 A EP 02090158A EP 02090158 A EP02090158 A EP 02090158A EP 1253326 A3 EP1253326 A3 EP 1253326A3
Authority
EP
European Patent Office
Prior art keywords
control element
opening
control
working gas
gas pressure
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.)
Granted
Application number
EP02090158A
Other languages
German (de)
French (fr)
Other versions
EP1253326A2 (en
EP1253326B1 (en
Inventor
Jörg Dipl.-Ing. Führmann
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.)
Demag Cranes and Components GmbH
Original Assignee
Demag Cranes and Components GmbH
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 Demag Cranes and Components GmbH filed Critical Demag Cranes and Components GmbH
Publication of EP1253326A2 publication Critical patent/EP1253326A2/en
Publication of EP1253326A3 publication Critical patent/EP1253326A3/en
Application granted granted Critical
Publication of EP1253326B1 publication Critical patent/EP1253326B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
    • 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
    • F15B2013/008—Throttling member profiles
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/885—Control specific to the type of fluid, e.g. specific to magnetorheological fluid
    • F15B2211/8855—Compressible fluids, e.g. specific to pneumatics
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7784—Responsive to change in rate of fluid flow
    • Y10T137/7787—Expansible chamber subject to differential pressures
    • Y10T137/7788—Pressures across fixed choke

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Driven Valves (AREA)
  • Multiple-Way Valves (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Die Erfindung betrifft ein Pneumatikventil zur Regelung des Volumenstroms eines Arbeitsgases, mit einer ersten und einer zweiten Öffnung zum Eintritt und Austritt des Arbeitsgases, die miteinander verbunden sind über eine Hauptverbindungsleitung, in der sich hintereinandergeschaltet eine Verstelldrossel und eine pneumatische Blende befinden. Um den Volumenstrom druckunabhängig annähernd konstant zu halten, wird vorgeschlagen, dass die Verstelldrossel (2) eine quer durch die Hauptverbindungsleitung (13) verlaufende Queröffnung (14) aufweist, in der ein Steuerelement gegen eine elastische Gegenkraft (5) hin- und herbewegbar angeordnet ist, das eine Steueröffnung für das Arbeitsgas aufweist, und dass das Steuerelement (4) in Bewegungsrichtung gesehen auf der der einen Endstellung zugewandten Seite des Steuerelements mit dem Gasdruck vor der Blende (3) und auf der anderen Endstellung zugewandten Seite des Steuerelements mit dem Gasdruck nach der Blende (3) beaufschlagt ist, um den Öffnungsquerschnitt abhängig von der Gasdruckdifferenz vor und nach der Blende (3) zu steuern.

Figure 00000001
The invention relates to a pneumatic valve for regulating the volume flow of a working gas, with a first and a second opening for entry and exit of the working gas, which are connected to one another via a main connecting line, in which an adjusting throttle and a pneumatic orifice are connected in series. In order to keep the volume flow approximately constant regardless of the pressure, it is proposed that the adjusting throttle (2) have a transverse opening (14) running across the main connecting line (13), in which a control element can be moved back and forth against an elastic counterforce (5) , which has a control opening for the working gas, and that the control element (4) seen in the direction of movement on the one end position facing side of the control element with the gas pressure in front of the orifice (3) and on the other end position facing the control element with the gas pressure after the diaphragm (3) is acted upon in order to control the opening cross section depending on the gas pressure difference before and after the diaphragm (3).
Figure 00000001
EP02090158A 2001-04-27 2002-04-29 Pneumatic valve Expired - Fee Related EP1253326B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10123157A DE10123157C1 (en) 2001-04-27 2001-04-27 pneumatic valve
DE10123157 2001-04-27

Publications (3)

Publication Number Publication Date
EP1253326A2 EP1253326A2 (en) 2002-10-30
EP1253326A3 true EP1253326A3 (en) 2004-02-18
EP1253326B1 EP1253326B1 (en) 2005-08-10

Family

ID=7684560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02090158A Expired - Fee Related EP1253326B1 (en) 2001-04-27 2002-04-29 Pneumatic valve

Country Status (4)

Country Link
US (1) US6729346B2 (en)
EP (1) EP1253326B1 (en)
JP (1) JP2003035377A (en)
DE (2) DE10123157C1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050183776A1 (en) * 2004-02-23 2005-08-25 Gerald Matranga Pressure regulator
WO2006110128A1 (en) * 2005-04-08 2006-10-19 Twin Disc, Incorporated Pressure regulator
DE102005055894A1 (en) * 2005-11-22 2007-05-31 Thyssenkrupp Presta Steertec Gmbh Vibration-damped proportional valve
FR2896833B1 (en) * 2006-01-30 2008-04-04 Coval Soc Par Actions Simplifi DEVICE FOR CONTROLLING A COMPRESSED GAS CONSUMER CIRCUIT AND VACUUM GENERATOR USING THE SAME
US7770595B2 (en) 2006-04-27 2010-08-10 Sko Flo Industries, Inc. Flow control valve
US7395708B2 (en) * 2006-04-28 2008-07-08 Skoflo Industries, Inc. Flow measuring apparatus including a piston movable in the flow barrel
WO2012048039A1 (en) * 2010-10-05 2012-04-12 Kirchner Mark W Flow rate controller for high flow rates and high pressure drops
CA2984175A1 (en) * 2015-05-01 2016-11-10 Graco Minnesota Inc. Pneumatic timing valve
CN106195327B (en) * 2016-08-17 2018-07-03 浙江利百加泵阀科技有限公司 Pneumatic cut-off reversal valve
EP3597939B1 (en) * 2018-07-20 2022-04-13 Hamilton Sundstrand Corporation Servo valve

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495785A (en) * 1945-01-11 1950-01-31 Hydraulic Equipment Company Lowering valve
US2990847A (en) * 1959-05-25 1961-07-04 Marquardt Corp Fluid flow regulator
GB1001407A (en) * 1963-01-04 1965-08-18 Pneumatic Components Ltd Improvements in or relating to apparatus for dispensing air or other gas
DE1206610B (en) * 1962-05-26 1965-12-09 Karl Marx Stadt Ind Werke Device for regulating the flow rate in opposite directions of flow
US3554222A (en) * 1968-06-04 1971-01-12 Mitsubishi Heavy Ind Ltd Automatic flow control valve
US3770007A (en) * 1972-04-21 1973-11-06 Int Harvester Co Dual direction flow control valve
WO1997032136A1 (en) * 1996-02-28 1997-09-04 Beringer-Hydraulik Ag Load-holding brake valve
DE29802606U1 (en) * 1998-02-16 1998-04-23 Zasche Fördertechnik GmbH, 86720 Nördlingen Hand-operated lifting device with a pneumatic lifting drive

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE500790C (en) * 1929-01-05 1930-06-28 Ludwig Sautter Dr Ing Membrane gas pressure regulator
GB809651A (en) * 1954-12-22 1959-02-25 Keelavite Co Ltd Fluid flow control apparatus
US3773083A (en) * 1972-03-28 1973-11-20 Kemp Ind Inc Hydraulic control apparatus
US3807443A (en) * 1972-12-08 1974-04-30 Sperry Rand Corp Power transmission
US4422470A (en) * 1982-07-01 1983-12-27 The Cessna Aircraft Company Flow limiting valve
US4694852A (en) * 1985-01-22 1987-09-22 Fsi Corporation Flow regulating valve for controlling the flow of corrosive fluids
US5027919A (en) * 1989-12-29 1991-07-02 Young & Franklin, Inc. Fluid friction controller
US5097863A (en) * 1991-06-05 1992-03-24 Mccann's Engineering And Manufacturing Co. Flow control apparatus
US5913328A (en) * 1997-09-15 1999-06-22 Taube; John D. Flow control valve with one piece plug/valve tube sleeve assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495785A (en) * 1945-01-11 1950-01-31 Hydraulic Equipment Company Lowering valve
US2990847A (en) * 1959-05-25 1961-07-04 Marquardt Corp Fluid flow regulator
DE1206610B (en) * 1962-05-26 1965-12-09 Karl Marx Stadt Ind Werke Device for regulating the flow rate in opposite directions of flow
GB1001407A (en) * 1963-01-04 1965-08-18 Pneumatic Components Ltd Improvements in or relating to apparatus for dispensing air or other gas
US3554222A (en) * 1968-06-04 1971-01-12 Mitsubishi Heavy Ind Ltd Automatic flow control valve
US3770007A (en) * 1972-04-21 1973-11-06 Int Harvester Co Dual direction flow control valve
WO1997032136A1 (en) * 1996-02-28 1997-09-04 Beringer-Hydraulik Ag Load-holding brake valve
DE29802606U1 (en) * 1998-02-16 1998-04-23 Zasche Fördertechnik GmbH, 86720 Nördlingen Hand-operated lifting device with a pneumatic lifting drive

Also Published As

Publication number Publication date
DE10123157C1 (en) 2002-11-14
JP2003035377A (en) 2003-02-07
EP1253326A2 (en) 2002-10-30
EP1253326B1 (en) 2005-08-10
DE50203854D1 (en) 2005-09-15
US20020157709A1 (en) 2002-10-31
US6729346B2 (en) 2004-05-04

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