EP1645755A3 - Progressive start device for compressed air systems - Google Patents

Progressive start device for compressed air systems Download PDF

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Publication number
EP1645755A3
EP1645755A3 EP20050020433 EP05020433A EP1645755A3 EP 1645755 A3 EP1645755 A3 EP 1645755A3 EP 20050020433 EP20050020433 EP 20050020433 EP 05020433 A EP05020433 A EP 05020433A EP 1645755 A3 EP1645755 A3 EP 1645755A3
Authority
EP
European Patent Office
Prior art keywords
compressed air
valve circuit
valves
vent switch
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
EP20050020433
Other languages
German (de)
French (fr)
Other versions
EP1645755B1 (en
EP1645755A2 (en
Inventor
Andreas Decker
Karl Messerschmidt
Günter Gebauer
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.)
Festo SE and Co KG
Original Assignee
Festo SE and Co KG
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Publication date
Application filed by Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP1645755A2 publication Critical patent/EP1645755A2/en
Publication of EP1645755A3 publication Critical patent/EP1645755A3/en
Application granted granted Critical
Publication of EP1645755B1 publication Critical patent/EP1645755B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/068—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam with valves for gradually putting pneumatic systems under 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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/008—Valve failure
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and directional control valve
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/634—Electronic controllers using input signals representing a state of a valve
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
    • F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6654—Flow rate control
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/75—Control of speed of the output member
    • 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
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86582—Pilot-actuated
    • Y10T137/86614—Electric
    • 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
    • Y10T137/8593—Systems
    • Y10T137/86928—Sequentially progressive opening or closing of plural valves
    • 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
    • Y10T137/8593—Systems
    • Y10T137/87265—Dividing into parallel flow paths with recombining
    • Y10T137/87322—With multi way valve having serial valve in at least one branch
    • 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
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures

Abstract

Bei einer Softstartvorrichtung für Druckluftsysteme mit einem Primäreinlass (P1), an dem Druckluft unter Primärdruck zuführbar ist, wobei der Primäreinlass (P1) mit einem, mit wenigstens einem Verbraucher koppelbaren Sekundärauslass (P2) über eine Ventilschaltung verbunden ist, an dem Druckluft unter Sekundärdruck abführbar ist, wobei der Sekundärdruck kleiner oder gleich dem Primärdruck ist, wobei zwischen Primäreinlass (P1) und Sekundärauslass (P2) ein Hauptventil vom Typ 2/2-nc (normaly closed) eingeschaltet ist, das mittels eines Bypasses (17) umgehbar ist, wobei im Bypass (17) eine Drosseleinrichtung (13) eingeschaltet ist, wobei Hauptventil (WV5) und Drosseleinrichtung (13) zusammen mit weiteren Ventilen (WV1, WV2, WV3, WV4; WV6; RV) der Ventilschaltung miteinander verschaltet sind und die Ventilschaltung in eine derartige Standard-Entlüftungsschaltstellung versetzbar ist, dass der Sekundärauslass (P2) entlüftet wird, sind die Ventile (WV1, WV2, WV3, WV4, WV5; WV6; RV) der Ventilschaltung derart miteinander verschaltet, dass zusätzlich zur Standard-Entlüftungsschaltstellung mehrere weitere Entlüftungsschaltstellungen möglich sind, wobei sich jeweils eine der weiteren Entlüftungsschaltstellungen ergibt, wenn bei dem normalerweise die Standard-Entlüftungsschaltstellung hervorrufenden Betätigungsvorgang ein beliebiges einzelnes der vorhandenen Ventile (WV1, WV2, WV3, WV4, WV5; WV6; RV) eine Fehlfunktion aufweist.

Figure imgaf001
In a soft-start device for compressed air systems with a primary inlet (P1) to which compressed air can be supplied under primary pressure, the primary inlet (P1) being connected to a secondary outlet (P2) which can be coupled to at least one consumer via a valve circuit, can be discharged from the compressed air under secondary pressure is, wherein the secondary pressure is less than or equal to the primary pressure, wherein between the primary inlet (P1) and secondary outlet (P2), a main valve of the type 2/2-nc (normally closed) is turned on, by means of a bypass (17) is bypassed, in the bypass (17) a throttle device (13) is turned on, wherein the main valve (WV5) and throttle device (13) together with other valves (WV1, WV2, WV3, WV4; WV6; RV) of the valve circuit are interconnected and the valve circuit in a such standard venting switch position is displaceable that the secondary outlet (P2) is vented, the valves (WV1, WV2, WV3, WV4, WV5, WV6 RV) of the valve circuit interconnected in such a way that in addition to the standard vent switch position several more vent switch positions are possible, each resulting in one of the other vent switch positions, when the normally the default vent switch position causing operation any one of the existing valves (WV1, WV2 , WV3, WV4, WV5; WV6; RV) has a malfunction.
Figure imgaf001
EP20050020433 2004-10-06 2005-09-20 Progressive start device for compressed air systems Active EP1645755B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202004015468U DE202004015468U1 (en) 2004-10-06 2004-10-06 Soft start device for compressed air systems

Publications (3)

Publication Number Publication Date
EP1645755A2 EP1645755A2 (en) 2006-04-12
EP1645755A3 true EP1645755A3 (en) 2007-09-05
EP1645755B1 EP1645755B1 (en) 2010-02-24

Family

ID=34042475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050020433 Active EP1645755B1 (en) 2004-10-06 2005-09-20 Progressive start device for compressed air systems

Country Status (4)

Country Link
US (1) US7699073B2 (en)
EP (1) EP1645755B1 (en)
AT (1) ATE458914T1 (en)
DE (2) DE202004015468U1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006010845B4 (en) * 2006-03-09 2009-04-30 Festo Ag & Co. Kg Valve device with soft start function
DE102006046450B3 (en) * 2006-09-29 2008-03-27 Festo Ag & Co. Valve arrangement, has shifting valve operatable by secondary pressure dominant in secondary channel and applying fluid pressure pilot signal of operating surface of main valve with predetermined level of secondary pressure
DE502006008678D1 (en) * 2006-12-05 2011-02-17 Festo Ag & Co Kg Soft start valve device
WO2009100734A1 (en) * 2008-02-15 2009-08-20 Festo Ag & Co. Kg Soft start device for compressed air systems and method for operating a soft start device
DE102011116472A1 (en) * 2010-11-08 2012-05-10 E.On Anlagenservice Gmbh Hydraulic or pneumatic actuator for actuating a valve with a control or switching valve
DE102011104530A1 (en) * 2011-02-04 2012-08-09 Robert Bosch Gmbh Hydraulic actuating arrangement
KR101649883B1 (en) * 2011-11-02 2016-08-22 에스엠시 가부시키가이샤 Flow rate control device
EP2971797A1 (en) * 2013-03-15 2016-01-20 Ross Operating Valve Company Control reliable pneumatic energy isolation valve with soft start function
DE102014006357B3 (en) * 2014-04-30 2015-06-25 Festo Ag & Co. Kg Compressed air system with safety function and method for operating such a compressed air system
GB2540368A (en) * 2015-07-14 2017-01-18 Ge Oil & Gas Uk Ltd Fail-safe hydraulic circuit
FR3042581B1 (en) * 2015-10-16 2018-03-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude FLUID CIRCULATION CONTROL SYSTEM, POWER PLANT COMPRISING SUCH A CONTROL SYSTEM, AND METHOD USING SUCH A POWER PLANT
DE102021110456A1 (en) * 2021-04-23 2022-10-27 Bürkert Werke GmbH & Co. KG Safety module for a process valve and system
DE102021123936B3 (en) 2021-09-15 2023-01-26 Aventics Gmbh safety valve

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US5337788A (en) * 1993-10-22 1994-08-16 Robertshaw Controls Company Pneumatic valve with slow start and quick exhaust
EP0758063A1 (en) * 1995-08-04 1997-02-12 Hygrama Ag Starting valve for pneumatic systems
US5669422A (en) * 1995-04-07 1997-09-23 Ckd Corporation Slow start valve

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US5337788A (en) * 1993-10-22 1994-08-16 Robertshaw Controls Company Pneumatic valve with slow start and quick exhaust
US5669422A (en) * 1995-04-07 1997-09-23 Ckd Corporation Slow start valve
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Title
FESTO: "der pneumatic-katalog", 1997, FESTO AG & CO., ESSLINGRN DE, XP002444297, 33 *
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Also Published As

Publication number Publication date
US7699073B2 (en) 2010-04-20
DE202004015468U1 (en) 2005-01-05
DE502005009076D1 (en) 2010-04-08
EP1645755B1 (en) 2010-02-24
ATE458914T1 (en) 2010-03-15
US20060070673A1 (en) 2006-04-06
EP1645755A2 (en) 2006-04-12

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