DE102009047082A1 - 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 - Google Patents

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 Download PDF

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Publication number
DE102009047082A1
DE102009047082A1 DE102009047082A DE102009047082A DE102009047082A1 DE 102009047082 A1 DE102009047082 A1 DE 102009047082A1 DE 102009047082 A DE102009047082 A DE 102009047082A DE 102009047082 A DE102009047082 A DE 102009047082A DE 102009047082 A1 DE102009047082 A1 DE 102009047082A1
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Prior art keywords
suction chamber
vacuum generator
generator according
opening
vortex
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DE102009047082A
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German (de)
Inventor
Walter Dr. Schaaf
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J Schmalz GmbH
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J Schmalz GmbH
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Priority to DE102009047082A priority Critical patent/DE102009047082A1/en
Publication of DE102009047082A1 publication Critical patent/DE102009047082A1/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/90—Devices for picking-up and depositing articles or materials
    • B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
    • 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
    • F04F5/42—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow characterised by the input flow of inducing fluid medium being radial or tangential to output flow
    • 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
    • F04F5/463—Arrangements of nozzles with provisions for mixing

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

Abstract

The compressed air-operated low pressure generator has a vortex-nozzle which has a suction chamber, an intake port discharged in the suction chamber, an exhaust port opened-out from the suction chamber and a forced air opening. The forced air opening is discharged between the inlet port and the exhaust port in the suction chamber. The forced air opening is discharged for forming a spiral-shaped air rotator in the suction chamber.

Description

Die Erfindung betrifft einen Unterdruckerzeuger mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a vacuum generator with the features of the preamble of claim 1.

Aus der EP 1 464 842 B1 und der DE 20 2006 020 267 U1 ist eine Vorrichtung bekannt geworden, die mittels eines Ejektors, welcher mit Druckluft versorgt wird, einen statischen Unterdruck erzeugt. An Stelle des Venturi-Prinzips ist auch das Coanda-Prinzip bekannt. Außerdem sind pneumatische Unterdruckerzeuger bekannt, bei denen ein statischer Unterdruck durch Erhöhung des dynamischen Drucks, also durch eine hohe Luftgeschwindigkeit, erzeugt wird. Dieses Prinzip wird als Bernoulli-Prinzip bezeichnet. Dabei tritt die Luft mit hoher Geschwindigkeit an der Saugfläche radial und strahlenförmig aus der Vorrichtung aus. Es sind auch Vorrichtungen bekannt, bei denen die Luft nicht geradlinig und strahlenförmig, also senkrecht zu konzentrischen Kreisen, sondern in schrägen Strahlen austritt, was z. B. bei einer mit der Bezeichnung ”Cyclon-Pad” bekannten Vorrichtung der Fa. SMC der Falls ist. Die Luft tritt hier an der ”Berührstelle” zum Objekt aus.From the EP 1 464 842 B1 and the DE 20 2006 020 267 U1 a device has become known which generates a static negative pressure by means of an ejector, which is supplied with compressed air. Instead of the Venturi principle, the Coanda principle is also known. In addition, pneumatic vacuum generator are known in which a static negative pressure by increasing the dynamic pressure, that is generated by a high air velocity. This principle is called the Bernoulli Principle. The air exits at high speed on the suction surface radially and radially out of the device. There are also known devices in which the air is not rectilinear and radiating, ie perpendicular to concentric circles, but exits in oblique rays, which z. B. in a known with the name "Cyclone Pad" device of the Fa. SMC of the Falls. The air exits here at the "contact point" to the object.

Der Erfindung liegt die Aufgabe zugrunde, einen Unterdruckerzeuger bereitzustellen, mit welchem auf effiziente Weise mittels eines geringen Verbrauchs an Druckluft ein hoher Volumenstrom auf der Saugseite erzeugt werden kann.The invention has for its object to provide a vacuum generator with which a high volume flow can be generated on the suction side in an efficient manner by means of a low consumption of compressed air.

Diese Aufgabe wird mit einem Unterdruckerzeuger gelöst, der die Merkmale des Anspruchs 1 aufweist.This object is achieved with a vacuum generator having the features of claim 1.

Dieser erfindungsgemäße Unterdruckerzeuger arbeitet nach dem Vortex-Prinzip, bei dem die Luft wendelförmig in eine Richtung strömt und Luft von der anderen Richtung absaugt. Dabei wird ein hoher Volumenstrom bei einem geringen Druckluftverbrauch erzeugt.This vacuum generator according to the invention operates on the vortex principle, in which the air flows helically in one direction and sucks air from the other direction. In this case, a high volume flow is generated at a low compressed air consumption.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen sowie der beigefügten Zeichnung. Dabei können die in der Zeichnung dargestellten sowie in der Beschreibung und in den Ansprüchen erwähnten Merkmale jeweils im Einzelnen als auch in beliebiger Kombination erfindungswesentlich sein.Further advantages, features and details of the invention will become apparent from the dependent claims and the accompanying drawings. The features shown in the drawing and mentioned in the description and in the claims may be essential to the invention in each case as well as in any combination.

Die 1 zeigt einen Ejektor mit einer einen Luftwirbel erzeugenden Vortex-Düse. Die 2 zeigt eine Vortex-Patrone für eine Vortex-Düse. Die 3 zeigt einen Vortex-Mehrstufenejektor mit Rückschlagklappe.The 1 shows an ejector with an air vortex generating vortex nozzle. The 2 shows a vortex cartridge for a vortex nozzle. The 3 shows a vortex multi-stage ejector with non-return valve.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • EP 1464842 B1 [0002] EP 1464842 B1 [0002]
  • DE 202006020267 U1 [0002] DE 202006020267 U1 [0002]

Claims (13)

Druckluftbetriebener Unterdruckerzeuger mit einer Vortex-Düse, welche eine Saugkammer, eine in die Saugkammer mündende Ansaugöffnung, eine aus der Saugkammer ausmündenden Ausströmöffnung und wenigstens eine zwischen der Ansaugöffnung und der Ausströmöffnung in die Saugkammer mündende Treibluftöffnung aufweist, dadurch gekennzeichnet, dass die mindestens eine Treibluftöffnung zur Bildung eines wendelförmigen Luftwirbels (Vortex) in die Saugkammer einmündet.Compressed-air-operated vacuum generator with a vortex nozzle, which has a suction chamber, a suction opening into the suction chamber, an outflow opening from the suction and at least one opening between the suction and the discharge opening in the suction chamber Treibluftöffnung, characterized in that the at least one blowing air opening for Formation of a helical vortex swirls into the suction chamber. Unterdruckerzeuger nach Anspruch 1, dadurch gekennzeichnet, dass wenigstens zwei Vortex-Düsen vorgesehen sind.Vacuum generator according to claim 1, characterized in that at least two vortex nozzles are provided. Unterdruckerzeuger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die wenigstens zwei Vortex-Düsen hintereinander geschaltet sind.Vacuum generator according to one of the preceding claims, characterized in that the at least two vortex nozzles are connected in series. Unterdruckerzeuger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die wenigstens zwei Vortex-Düsen unabhängig voneinander mit Treibluft versorgte Treibluftöffnungen aufweisen.Vacuum generator according to one of the preceding claims, characterized in that the at least two vortex nozzles have independently supplied with blowing air blowing air openings. Unterdruckerzeuger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Ausströmöffnung der einen Vortex-Düse in die Treibluftöffnung der nachfolgenden Vortex-Düse mündet.Vacuum generator according to one of the preceding claims, characterized in that the outflow opening of a vortex nozzle opens into the blowing air opening of the subsequent vortex nozzle. Unterdruckerzeuger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Rückschlagklappe vorgesehen ist, die unterdruckabhängig öffnet und/schließt.Vacuum generator according to one of the preceding claims, characterized in that a non-return valve is provided which opens and / or closes under pressure-dependent. Unterdruckerzeuger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er zylindrisch und/oder koaxial aufgebaut ist.Vacuum generator according to one of the preceding claims, characterized in that it is cylindrical and / or coaxial. Unterdruckerzeuger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er einen rechteckförmigen, kreisrunden oder unrunden, z. B. ovalen oder elliptischen Querschnitt aufweist.Vacuum generator according to one of the preceding claims, characterized in that it has a rectangular, circular or non-circular, z. B. oval or elliptical cross-section. Unterdruckerzeuger nach Anspruch 8, dadurch gekennzeichnet, dass er von wenigstens zwei, parallel zueinander liegenden Platten gebildet wird, deren einander zugewandten Seiten die den Unterdruckerzeuger bildenden Erhebungen und Vertiefungen aufweisen.Vacuum generator according to claim 8, characterized in that it is formed by at least two, mutually parallel plates whose mutually facing sides have the negative pressure generator forming elevations and depressions. Unterdruckerzeuger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Abblasvorrichtung vorgesehen ist.Vacuum generator according to one of the preceding claims, characterized in that a blow-off device is provided. Unterdruckerzeuger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zur Detektion der Strömungs- und Druckverhältnisse ein Sensor vorgesehen ist.Vacuum generator according to one of the preceding claims, characterized in that a sensor is provided for the detection of the flow and pressure conditions. Unterdruckerzeuger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Ansaugöffnung zur Bildung eines Flächensauggreifers mit einer Saugplatte bestückt ist.Vacuum generator according to one of the preceding claims, characterized in that the suction opening is equipped to form a surface suction with a suction plate. Unterdruckerzeuger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die mindestens eine Treibluftöffnung in Richtung der Ausströmöffnung zeigt.Vacuum generator according to one of the preceding claims, characterized in that the at least one blowing air opening points in the direction of the outflow opening.
DE102009047082A 2009-11-24 2009-11-24 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 Withdrawn DE102009047082A1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104257327A (en) * 2014-10-22 2015-01-07 昆山嘉科环保设备有限公司 Explosion-proof industrial vacuum cleaner
CN104329298A (en) * 2014-10-22 2015-02-04 昆山嘉科环保设备有限公司 Pneumatic negative pressure device
EP4076870A4 (en) * 2019-12-16 2024-04-17 Amp Robotics Corporation An actuated air conveyor device for material sorting and other applications

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB115862A (en) * 1917-03-23 1918-05-23 Karl Baumann Improvements in or relating to Ejectors.
GB169683A (en) * 1920-09-29 1922-01-12 Vickers Electrical Co Ltd Improvements in ejectors of the inward flow radial type
FR965718A (en) * 1950-09-20
US4028009A (en) * 1975-09-24 1977-06-07 Nikolai Vasilievich Gudzenko Jet pump
DE2908233A1 (en) * 1979-03-02 1980-09-11 Heinz Ing Grad Hoelter Ejector pump for water boreholes - has all stages of ejection constructed within single casing common to all stages
DE3603839C2 (en) * 1985-02-08 1989-09-28 Dan Kiryat Il Greenberg
JPH08240199A (en) * 1995-02-28 1996-09-17 Hisamoto Suzuki Pump device
WO1999049216A1 (en) * 1998-03-20 1999-09-30 Piab Ab Vacuum ejector pump
DE10250532B3 (en) * 2002-10-29 2004-07-01 J. Schmalz Gmbh Propellant powered ejector assembly
EP1464842B1 (en) 2003-04-03 2005-10-12 Festo AG & Co Vacuum generating device
DE10061384B4 (en) * 2000-12-09 2007-01-18 Festo Ag & Co. Jet pump arrangement for generating vacuum and method for operating such a jet pump arrangement
DE202006020267U1 (en) 2006-06-07 2008-02-21 J. Schmalz Gmbh Vacuum generator
WO2009054732A1 (en) * 2007-10-26 2009-04-30 Ntnu Technology Transfer As A coanda ej ector
EP1586419B1 (en) * 2004-03-30 2009-09-30 J. Schmalz GmbH Surface gripper

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR965718A (en) * 1950-09-20
GB115862A (en) * 1917-03-23 1918-05-23 Karl Baumann Improvements in or relating to Ejectors.
GB169683A (en) * 1920-09-29 1922-01-12 Vickers Electrical Co Ltd Improvements in ejectors of the inward flow radial type
US4028009A (en) * 1975-09-24 1977-06-07 Nikolai Vasilievich Gudzenko Jet pump
DE2908233A1 (en) * 1979-03-02 1980-09-11 Heinz Ing Grad Hoelter Ejector pump for water boreholes - has all stages of ejection constructed within single casing common to all stages
DE3603839C2 (en) * 1985-02-08 1989-09-28 Dan Kiryat Il Greenberg
JPH08240199A (en) * 1995-02-28 1996-09-17 Hisamoto Suzuki Pump device
WO1999049216A1 (en) * 1998-03-20 1999-09-30 Piab Ab Vacuum ejector pump
DE10061384B4 (en) * 2000-12-09 2007-01-18 Festo Ag & Co. Jet pump arrangement for generating vacuum and method for operating such a jet pump arrangement
DE10250532B3 (en) * 2002-10-29 2004-07-01 J. Schmalz Gmbh Propellant powered ejector assembly
EP1464842B1 (en) 2003-04-03 2005-10-12 Festo AG & Co Vacuum generating device
EP1586419B1 (en) * 2004-03-30 2009-09-30 J. Schmalz GmbH Surface gripper
DE202006020267U1 (en) 2006-06-07 2008-02-21 J. Schmalz Gmbh Vacuum generator
WO2009054732A1 (en) * 2007-10-26 2009-04-30 Ntnu Technology Transfer As A coanda ej ector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104257327A (en) * 2014-10-22 2015-01-07 昆山嘉科环保设备有限公司 Explosion-proof industrial vacuum cleaner
CN104329298A (en) * 2014-10-22 2015-02-04 昆山嘉科环保设备有限公司 Pneumatic negative pressure device
EP4076870A4 (en) * 2019-12-16 2024-04-17 Amp Robotics Corporation An actuated air conveyor device for material sorting and other applications

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Effective date: 20120601