EP2955388A3 - Vacuum generator according to the ejector principle - Google Patents

Vacuum generator according to the ejector principle Download PDF

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Publication number
EP2955388A3
EP2955388A3 EP15001715.0A EP15001715A EP2955388A3 EP 2955388 A3 EP2955388 A3 EP 2955388A3 EP 15001715 A EP15001715 A EP 15001715A EP 2955388 A3 EP2955388 A3 EP 2955388A3
Authority
EP
European Patent Office
Prior art keywords
negative pressure
space
air outlet
vacuum generator
air
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
EP15001715.0A
Other languages
German (de)
French (fr)
Other versions
EP2955388B1 (en
EP2955388A2 (en
Inventor
Alfred Bilsing
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.)
Bilsing Automation GmbH
Original Assignee
Bilsing Automation 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 Bilsing Automation GmbH filed Critical Bilsing Automation GmbH
Priority to PL15001715T priority Critical patent/PL2955388T3/en
Publication of EP2955388A2 publication Critical patent/EP2955388A2/en
Publication of EP2955388A3 publication Critical patent/EP2955388A3/en
Application granted granted Critical
Publication of EP2955388B1 publication Critical patent/EP2955388B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F04F5/20—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F04F5/467—Arrangements of nozzles with a plurality of nozzles arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/48—Control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/48—Control
    • F04F5/52—Control of evacuating pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

Ein Vakuumerzeuger besitzt einen mehrstufigen Ejektor mit mehreren in Reihe angeordneten Düsen. Durch die Düsen wirkt ein über einen Druckluftanschluss (22) zuführbarer Luftstrom mit hoher Geschwindigkeit zu einem Luftauslass (28) geleitet, so dass in einem kommunizierenden, die Düsen umgebenen Raum (20) ein Unterdruck erzeugbar ist.A vacuum generator has a multi-stage ejector with multiple nozzles arranged in series. A jet of air which can be supplied via a compressed air connection (22) flows through the nozzles at high speed to an air outlet (28), so that a negative pressure can be generated in a communicating space (20) surrounding the nozzles.

Um basierend auf einem mehrstufigen Ejektor eine schnelle Aufhebung des Vakuums bei niedrigem Luftbedarf zu ermöglichen, ist in dem Luftauslass (28) ein Abschaltventil (32) vorgesehen, mittels dessen der Luftauslass (28) luftdicht verschließbar ist, wobei der Raum (20, 30), in welchem der Unterdruck erzeugbar ist, eine Belüftungsöffnung (66) aufweist, die durch ein Belüftungsventil verschlossen ist, mittels dessen im Zusammenspiel mit dem Abschaltventil (32) ein Belüftungskanal (66) zum Belüften des Raumes (20, 30) in welchem der Unterdruck erzeugbar ist, öffenbar ist.

Figure imgaf001
In order to enable a rapid release of the vacuum at low air requirement based on a multi-stage ejector, a shut-off valve (32) is provided in the air outlet (28), by means of which the air outlet (28) is hermetically sealed, the space (20, 30) in which the negative pressure can be generated, a ventilation opening (66) which is closed by a vent valve, by means of which in conjunction with the shut-off valve (32) has a ventilation channel (66) for venting the space (20, 30) in which the negative pressure is producible, is openable.
Figure imgaf001
EP15001715.0A 2014-06-11 2015-06-10 Vacuum generator according to the ejector principle Active EP2955388B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15001715T PL2955388T3 (en) 2014-06-11 2015-06-10 Vacuum generator according to the ejector principle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014008226.1A DE102014008226A1 (en) 2014-06-11 2014-06-11 Vacuum generator according to the ejector principle

Publications (3)

Publication Number Publication Date
EP2955388A2 EP2955388A2 (en) 2015-12-16
EP2955388A3 true EP2955388A3 (en) 2016-01-27
EP2955388B1 EP2955388B1 (en) 2020-01-15

Family

ID=53397763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15001715.0A Active EP2955388B1 (en) 2014-06-11 2015-06-10 Vacuum generator according to the ejector principle

Country Status (6)

Country Link
US (1) US20160047396A1 (en)
EP (1) EP2955388B1 (en)
DE (1) DE102014008226A1 (en)
ES (1) ES2779307T3 (en)
PL (1) PL2955388T3 (en)
PT (1) PT2955388T (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4302951C1 (en) * 1993-02-03 1994-05-05 Schmalz J Gmbh Ejector pump diffuser obturator - has compressed-gas passage to diffuser shut by plug when in rest position
DE10226002A1 (en) * 2001-02-15 2004-01-08 Trumpf Sachsen Gmbh Compressed air saving device for suction grippers activated by ejectors has valve activated by vacuum, valve opened by work pressure and valve preventing return flow into compressed air outlet
DE102004011876A1 (en) * 2004-03-11 2005-09-29 Trumpf Sachsen Gmbh Suction pad adjustment control with control valve block
EP2685107A1 (en) * 2011-03-10 2014-01-15 Korea Pneumatic System Co., Ltd Quick-release vacuum pump

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1936916B2 (en) * 1969-07-19 1977-11-24 Enka Glanzstoff Ag, 5600 Wuppertal INJECTOR FOR SUCTION OF FAST MOVING THREAD MATERIAL
US3892361A (en) * 1974-04-18 1975-07-01 Src Lab Two stage nozzle
US4860795A (en) * 1988-03-03 1989-08-29 Oten Peter D Venturi block having cut off
DE4001937A1 (en) * 1990-01-24 1991-07-25 Antriebs Steuerungstech Ges HANDLING DEVICE WITH A SUCTION GRIPPER AND METHOD FOR HANDLING AND CHECKING FLUID-FLOWED COMPONENTS
US5277468A (en) * 1991-01-30 1994-01-11 John A. Blatt Vacuum control apparatus
EP0502233B1 (en) * 1991-03-07 1994-10-19 THR-BILSING GmbH Automated transport device, particularly for transferring workpieces between presses
US6071084A (en) * 1995-11-14 2000-06-06 Wass; Lloyd G. Aspirator
DE29923752U1 (en) * 1998-03-05 2001-07-05 Bilsing Automation Gmbh Coupling for connecting workpiece grippers to a handling device
SE511716E5 (en) * 1998-03-20 2009-01-28 Piab Ab ejector
DE19817249C1 (en) * 1998-04-18 1999-08-26 Schmalz J Gmbh Ejector for vacuum production, particularly for vacuum handling apparatus
SE513991C2 (en) 1999-02-26 2000-12-11 Piab Ab Filter for an ejector-type vacuum pump with silencer
DE29916531U1 (en) * 1999-09-20 2001-02-08 Volkmann Thilo Ejector
DE10027873C1 (en) * 2000-06-06 2002-02-07 Festo Ag & Co Pneumatic pressure control device
DE10250532B3 (en) * 2002-10-29 2004-07-01 J. Schmalz Gmbh Propellant powered ejector assembly
ATE306619T1 (en) * 2003-04-03 2005-10-15 Festo Ag & Co VACUUM GENERATING DEVICE
DE102004026245A1 (en) * 2004-05-28 2005-12-15 Bilsing Automation Gmbh Method and bearing assembly for releasably securing a gripping tool to the crossbar of a transfer press
SE530787C2 (en) * 2007-01-16 2008-09-09 Xerex Ab Ejector device with ventilation function
US10221867B2 (en) * 2013-12-10 2019-03-05 Dayco Ip Holdings, Llc Flow control for aspirators producing vacuum using the venturi effect
DE102015202603A1 (en) * 2015-02-12 2016-08-18 J. Schmalz Gmbh Vacuum generating device and tube lifter with a vacuum generating device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4302951C1 (en) * 1993-02-03 1994-05-05 Schmalz J Gmbh Ejector pump diffuser obturator - has compressed-gas passage to diffuser shut by plug when in rest position
DE10226002A1 (en) * 2001-02-15 2004-01-08 Trumpf Sachsen Gmbh Compressed air saving device for suction grippers activated by ejectors has valve activated by vacuum, valve opened by work pressure and valve preventing return flow into compressed air outlet
DE102004011876A1 (en) * 2004-03-11 2005-09-29 Trumpf Sachsen Gmbh Suction pad adjustment control with control valve block
EP2685107A1 (en) * 2011-03-10 2014-01-15 Korea Pneumatic System Co., Ltd Quick-release vacuum pump

Also Published As

Publication number Publication date
PL2955388T3 (en) 2020-06-29
EP2955388B1 (en) 2020-01-15
ES2779307T3 (en) 2020-08-14
PT2955388T (en) 2020-04-23
DE102014008226A1 (en) 2015-12-17
US20160047396A1 (en) 2016-02-18
EP2955388A2 (en) 2015-12-16

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