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EP1213485A3 - Vacuum generating device and method for operation thereof - Google Patents

Vacuum generating device and method for operation thereof Download PDF

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Publication number
EP1213485A3
EP1213485A3 EP01127994A EP01127994A EP1213485A3 EP 1213485 A3 EP1213485 A3 EP 1213485A3 EP 01127994 A EP01127994 A EP 01127994A EP 01127994 A EP01127994 A EP 01127994A EP 1213485 A3 EP1213485 A3 EP 1213485A3
Authority
EP
European Patent Office
Prior art keywords
vacuum generating
generating device
ejector
suction opening
negative 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
EP01127994A
Other languages
German (de)
French (fr)
Other versions
EP1213485B1 (en
EP1213485A2 (en
Inventor
Markus Bretzler
Jürgen Schnatterer
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
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 Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP1213485A2 publication Critical patent/EP1213485A2/en
Publication of EP1213485A3 publication Critical patent/EP1213485A3/en
Application granted granted Critical
Publication of EP1213485B1 publication Critical patent/EP1213485B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F04F5/44—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
    • 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
    • F04F5/14—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
    • F04F5/22—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 of multi-stage type

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

Es wird eine Vakuumerzeugervorrichtung vorgeschlagen, die über zwei Ejektoreinrichtungen (2, 2') verfügt. In die erste Ejektoreinrichtung (2) wird ein Betätigungsfluid eingespeist, das an einer Saugöffnung (16) einen Unterdruck erzeugt. Da die Saugöffnung (16) mit der Austrittsöffnung (15') der zweiten Ejektoreinrichtung (2') verbunden ist, bildet sich in der zweiten Ejektoreinrichtung (2') eine Absaugströmung aus, die sich an der Saugöffnung (16') der zweiten Ejektoreinrichtung (2') abgreifen lässt. Auf diese Weise kann mit einfachen Mitteln ein hoher Unterdruck erzeugt werden.

Figure 00000001
A vacuum generating device is proposed, which has two ejector devices (2, 2 '). In the first Ejektoreinrichtung (2), an actuating fluid is fed, which generates a negative pressure at a suction opening (16). Since the suction opening (16) is connected to the outlet opening (15 ') of the second ejector device (2'), a suction flow is formed in the second ejector device (2 ') located at the suction opening (16') of the second ejector device (2). 2 ') can tap. In this way, a high negative pressure can be generated by simple means.
Figure 00000001
EP01127994A 2000-12-09 2001-11-24 Vacuum generating device and method for operation thereof Expired - Lifetime EP1213485B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000161384 DE10061384B4 (en) 2000-12-09 2000-12-09 Jet pump arrangement for generating vacuum and method for operating such a jet pump arrangement
DE10061384 2000-12-09

Publications (3)

Publication Number Publication Date
EP1213485A2 EP1213485A2 (en) 2002-06-12
EP1213485A3 true EP1213485A3 (en) 2005-10-12
EP1213485B1 EP1213485B1 (en) 2008-03-05

Family

ID=7666488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01127994A Expired - Lifetime EP1213485B1 (en) 2000-12-09 2001-11-24 Vacuum generating device and method for operation thereof

Country Status (2)

Country Link
EP (1) EP1213485B1 (en)
DE (2) DE10061384B4 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2929663B1 (en) * 2008-04-03 2012-10-05 Coval AUTOREGULE VACUUM GENERATOR.
DE102009047089B4 (en) * 2009-11-24 2012-01-26 J. Schmalz Gmbh Compressed air operated vacuum generator
DE102009047083C5 (en) * 2009-11-24 2013-09-12 J. Schmalz Gmbh Compressed air operated vacuum generator or vacuum gripper
DE102009047082A1 (en) * 2009-11-24 2011-05-26 J. Schmalz Gmbh Compressed air-operated low pressure generator has vortex-nozzle which has suction chamber, intake port discharged in suction chamber, exhaust port opened-out from suction chamber and forced air opening
GB2509182A (en) * 2012-12-21 2014-06-25 Xerex Ab Vacuum ejector with multi-nozzle drive stage and booster
JP6575013B2 (en) 2012-12-21 2019-09-18 ピアブ・アクチエボラグ Vacuum ejector nozzle with elliptical divergent section
GB2509183A (en) 2012-12-21 2014-06-25 Xerex Ab Vacuum ejector with tripped diverging exit flow nozzle
GB2509184A (en) 2012-12-21 2014-06-25 Xerex Ab Multi-stage vacuum ejector with moulded nozzle having integral valve elements
CN103357616A (en) * 2013-07-04 2013-10-23 上海大学 Method for collecting high-temperature oil haze of cold header
GB201418117D0 (en) 2014-10-13 2014-11-26 Xerex Ab Handling device for foodstuff
CN104438217B (en) * 2014-11-18 2016-08-24 玮锋电子材料（昆山）有限公司 Dust pelletizing system
DE102015202603A1 (en) * 2015-02-12 2016-08-18 J. Schmalz Gmbh Vacuum generating device and tube lifter with a vacuum generating device
CN108644157A (en) * 2018-07-19 2018-10-12 北京孤岛科技有限公司 A kind of negative pressure generator
CN114658698B (en) * 2022-03-29 2024-04-26 青岛北冰洋冷暖能源科技有限公司 Combined liquid injection vacuumizing system and vacuumizing method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB450209A (en) * 1936-01-21 1936-07-13 Alfred Reinhold Jahn Improvements in and relating to vacuum-producing apparatus
US4158528A (en) * 1973-09-12 1979-06-19 Air-Vac Engineering Co., Inc. Gas-operated vacuum transducer
US4395201A (en) * 1980-02-21 1983-07-26 Dan Bron Injector pump
JPS6155400A (en) * 1984-08-27 1986-03-19 Shoketsu Kinzoku Kogyo Co Ltd Vacuum generator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0353039Y2 (en) * 1987-05-30 1991-11-19
DE19538617C2 (en) * 1995-10-17 1998-03-19 Judo Wasseraufbereitung Double injector
DE19808548A1 (en) * 1998-02-28 1999-09-02 Itt Mfg Enterprises Inc Negative pressure creating device for pneumatic brake amplifier of vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB450209A (en) * 1936-01-21 1936-07-13 Alfred Reinhold Jahn Improvements in and relating to vacuum-producing apparatus
US4158528A (en) * 1973-09-12 1979-06-19 Air-Vac Engineering Co., Inc. Gas-operated vacuum transducer
US4395201A (en) * 1980-02-21 1983-07-26 Dan Bron Injector pump
JPS6155400A (en) * 1984-08-27 1986-03-19 Shoketsu Kinzoku Kogyo Co Ltd Vacuum generator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 218 (M - 503) 30 July 1986 (1986-07-30) *

Also Published As

Publication number Publication date
EP1213485B1 (en) 2008-03-05
EP1213485A2 (en) 2002-06-12
DE10061384A1 (en) 2002-06-20
DE10061384B4 (en) 2007-01-18
DE50113688D1 (en) 2008-04-17

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