WO1980002445A1 - Soufflante a circuits integres - Google Patents

Soufflante a circuits integres Download PDF

Info

Publication number
WO1980002445A1
WO1980002445A1 PCT/US1980/000534 US8000534W WO8002445A1 WO 1980002445 A1 WO1980002445 A1 WO 1980002445A1 US 8000534 W US8000534 W US 8000534W WO 8002445 A1 WO8002445 A1 WO 8002445A1
Authority
WO
WIPO (PCT)
Prior art keywords
impeller
blade
duct
housing
plane
Prior art date
Application number
PCT/US1980/000534
Other languages
English (en)
Inventor
E Kolm
H Kolm
Original Assignee
Rotron Inc
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 Rotron Inc filed Critical Rotron Inc
Priority to DE8080901052T priority Critical patent/DE3067101D1/de
Publication of WO1980002445A1 publication Critical patent/WO1980002445A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D33/00—Non-positive-displacement pumps with other than pure rotation, e.g. of oscillating type

Definitions

  • the present invention is a revolutionary solid state blower of the -undulating blade type which is extremely efficient, inexpensive to manufacture, and designed for a long service life.
  • the piezo-electric bilaminate is a strip consisting of two layers of piezo-electric ceramic, polarized in opposite directions, which on their facing sides are separated by a conducting layer and which on their outside faces are surrounded by conducting layers.
  • the two outside conducting layers are connected as electrodes to a controlled alternating current supply. Since the piezo-electric layers have opposite polarity, voltage applied across the bilaminate strip induces bending of the element. Accordingly, alternating voltage across the piezo-electric element will drive the blade back and forth at the point of attachment.
  • the blade material, resiliency, taper, and width are preferably selected to tune the impeller to the oscillating frequency of the drive arrangement to result in stable and efficient operation.
  • a piezo-electric element suitable for use in the present invention is marketed by Gulton Industries, Inc., Piezo Products Division, Metuchen, N.J., under the name "Piezo Ceramic Bender Element", No. G1195.
  • Each bi ⁇ laminate strip 28 (Fig. 2) has two layers of piezo- electric ceramic 29 separated by a layer of conducting material 30, e.g. brass.
  • the outside layers 32, 34 are silver, and connected to the leads 36, 38 of a controlled alternating current supply 39.
  • the two ceramic layers 29 are polarized in opposite directions, so that voltage across the bilaminate induces a bending motion in the strip.
  • bilaminate strip 28 Since the bilaminate strip 28 is fixed on the housing at 41, controlled alternating voltage, therefore, causes the free end 42 of the piezo-electric element 28 to move back and forth at the voltage frequency. The bending movement of the bilaminates 28, in turn, drives the blades 18 back and forth at the point of attachment 42 at a controlled rate.
  • connections from the piezo-electric elements 28 to the power supply 39 are conveniently made at the end 40, beneath the holder 41.
  • the driving force (F) is applied at a single point, and with a selected frequency range ' depending, e.g., upon the blade material, taper, and resiliency and thus the blade resonant frequency, such that the blade undergoes both lateral displacement and bending at the point of applied force.
  • the driving force F on the blade produces the successive blade shapes shown in Figs. 3a-3f and directions of air motion (A) indicated by arrows, as described below.
  • the device is very efficient, and in tests, operation has been very stable, with efficiency so high that rises in temperature of the bilaminates have been virtually undetectable.
  • the member 141 is provided with a pair of vertical slots 142, each of which is sized to snugly receive the end of the bilaminate 128 and a pair of electrically conductive contact leaves 144, one on either side of the bilaminate. Conductors, not shown, are connected to the leaves for coupling to the alternat ⁇ ing voltage supply.
  • the free ends of the bilaminates 128 are attached to coupler weights 150, which in turn support the resilient blades 118.
  • the weights 150 have vertical slots along their narrow edges for snugly engaging the bilaminates and blades, respectively. As shown in Fig. " 4, the blades preferably are substantially wider than the bilaminates, to maximize air flow.
  • the blower works very efficiently in pumping fluids, especially air, without the need for blade valving action.
  • the two bilaminates are driven to opposing phase relationship, as in the Fig. 1 embodiment.
  • both Figs. 1 and 4 can provide effective air movement with a single oscillat- ing blade.
  • the blade may be driven at two or more points along its length, in which case the resonant frequency and driving frequency become less of a factor in determining efficiency. All such modifications and variations are intended to be within the scope of the invention as defined in the following claims .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Un dispositif de pompage de gaz ou liquides ayant un logement et une roue ou impulseur flexible qui se trouve sensiblement dans un plan, monte sur le logement et libre de se deplacer perpendiculairement a son propre plan. Un appareil d'entrainement de l'impulseur et agissant au moins sur un point de l'impulseur sert a la propagation d'une onde progressive de flexion le long de l'impulseur dans le plan de l'impulseur pour pomper un gaz ou un liquide. Dans le mode preferentiel de realisation, l'impulseur est une aube allongee (18) et entrainee par un element de flexion piezo-electrique (28) mobile en va-et-vient par une alimentation en courant alternatif (39). L'aube ou diaphragme peut etre contenu dans un canal ou conduite, de maniere telle que le mouvement d'ondulation de l'aube contre les parois de la conduite joue le role de soupape.
PCT/US1980/000534 1979-05-07 1980-05-06 Soufflante a circuits integres WO1980002445A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8080901052T DE3067101D1 (en) 1979-05-07 1980-05-06 Solid state blower

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US3681279A 1979-05-07 1979-05-07
US14234880A 1980-05-02 1980-05-02
US36812 1998-03-09

Publications (1)

Publication Number Publication Date
WO1980002445A1 true WO1980002445A1 (fr) 1980-11-13

Family

ID=26713528

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1980/000534 WO1980002445A1 (fr) 1979-05-07 1980-05-06 Soufflante a circuits integres

Country Status (4)

Country Link
EP (1) EP0028245B1 (fr)
JP (1) JPS6315480B2 (fr)
DE (1) DE3067101D1 (fr)
WO (1) WO1980002445A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528500A1 (fr) * 1982-06-11 1983-12-16 Agronomique Inst Nat Rech Ventilateur silencieux et ventilo-convecteur muni d'un tel ventilateur
WO1985002231A1 (fr) * 1983-11-17 1985-05-23 Piezo Electric Products, Inc. Ventilateur piezo-electrique a lames oscillant sans vibration
EP0144992A2 (fr) * 1983-12-09 1985-06-19 Takasago USA, Inc. Distributeur de substances volatiles
US4684328A (en) * 1984-06-28 1987-08-04 Piezo Electric Products, Inc. Acoustic pump
US4753579A (en) * 1986-01-22 1988-06-28 Piezo Electric Products, Inc. Ultrasonic resonant device
WO1997029282A1 (fr) * 1996-02-12 1997-08-14 Drevet Jean Baptiste Circulateur de fluide a membrane vibrante
EP0995908A1 (fr) * 1998-10-20 2000-04-26 vanden Brande, Pierre Pompe moléculaire
WO2003071132A2 (fr) * 2002-02-15 2003-08-28 Siemens Technology-To-Business Center, Llc Petites pompes a air piezoelectriques avec ecoulement d'air non obstrue
FR2893991A1 (fr) * 2005-11-30 2007-06-01 Jean Baptiste Drevet Circulateur a membrane
CN100335779C (zh) * 2005-07-15 2007-09-05 清华大学 可实现正反向流体流动的行波驱动压电陶瓷泵
EP2743513A1 (fr) * 2012-12-13 2014-06-18 Goodrich Lighting Systems GmbH Dispositif pour générer un flux d'air de refroidissement d'un élément électronique de dissipation thermique, tel qu'une DEL
EP2743512A1 (fr) * 2012-12-13 2014-06-18 Goodrich Lighting Systems GmbH Procédé pour commander un élément mécanique vibratoire
US10280945B2 (en) 2013-02-01 2019-05-07 Alcatel Lucent Device for moving air

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2754581B2 (ja) * 1988-07-30 1998-05-20 株式会社島津製作所 熱交換器
EP1025863B1 (fr) * 1994-05-27 2004-01-02 Minnesota Mining And Manufacturing Company Système pour tester une stérilisation utilisant des mesures paramétriques
EP3186516A1 (fr) * 2014-08-25 2017-07-05 GE Aviation Systems LLC Générateur d'écoulement d'air et réseau de générateurs d'écoulement d'air
EP3186517A1 (fr) * 2014-08-28 2017-07-05 GE Aviation Systems LLC Système de refroidissement par air et générateur de flux d'air

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152243A (en) * 1935-05-17 1939-03-28 Hoover Co Fluid circulation in absorption refrigerators
DE836006C (de) * 1950-04-04 1952-04-07 Dr Rudolf Blunck Antriebsvorrichtung, insbesondere fuer Wasser- und Luftfahrzeuge
US3264998A (en) * 1963-09-20 1966-08-09 Martin Marietta Corp Traveling wave high frequency vacuum pump
US3657930A (en) * 1969-06-24 1972-04-25 Bendix Corp Piezoelectric crystal operated pump to supply fluid pressure to hydrostatically support inner bearings of a gyroscope
US3765175A (en) * 1970-12-30 1973-10-16 J Ohnaka Fluid driven propulsion and generator mechanism
US4063826A (en) * 1975-05-20 1977-12-20 Waldemar Riepe Flexible, oscillating blade liquid pump

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1302541A (fr) * 1969-02-07 1973-01-10

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152243A (en) * 1935-05-17 1939-03-28 Hoover Co Fluid circulation in absorption refrigerators
DE836006C (de) * 1950-04-04 1952-04-07 Dr Rudolf Blunck Antriebsvorrichtung, insbesondere fuer Wasser- und Luftfahrzeuge
US3264998A (en) * 1963-09-20 1966-08-09 Martin Marietta Corp Traveling wave high frequency vacuum pump
US3657930A (en) * 1969-06-24 1972-04-25 Bendix Corp Piezoelectric crystal operated pump to supply fluid pressure to hydrostatically support inner bearings of a gyroscope
US3765175A (en) * 1970-12-30 1973-10-16 J Ohnaka Fluid driven propulsion and generator mechanism
US4063826A (en) * 1975-05-20 1977-12-20 Waldemar Riepe Flexible, oscillating blade liquid pump

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528500A1 (fr) * 1982-06-11 1983-12-16 Agronomique Inst Nat Rech Ventilateur silencieux et ventilo-convecteur muni d'un tel ventilateur
WO1985002231A1 (fr) * 1983-11-17 1985-05-23 Piezo Electric Products, Inc. Ventilateur piezo-electrique a lames oscillant sans vibration
US4595338A (en) * 1983-11-17 1986-06-17 Piezo Electric Products, Inc. Non-vibrational oscillating blade piezoelectric blower
EP0144992A2 (fr) * 1983-12-09 1985-06-19 Takasago USA, Inc. Distributeur de substances volatiles
EP0144992A3 (fr) * 1983-12-09 1987-03-25 Takasago USA, Inc. Distributeur de substances volatiles
US4684328A (en) * 1984-06-28 1987-08-04 Piezo Electric Products, Inc. Acoustic pump
US4753579A (en) * 1986-01-22 1988-06-28 Piezo Electric Products, Inc. Ultrasonic resonant device
WO1997029282A1 (fr) * 1996-02-12 1997-08-14 Drevet Jean Baptiste Circulateur de fluide a membrane vibrante
FR2744769A1 (fr) * 1996-02-12 1997-08-14 Drevet Jean Baptiste Circulateur de fluide a membrane vibrante
EP0995908A1 (fr) * 1998-10-20 2000-04-26 vanden Brande, Pierre Pompe moléculaire
WO2000023715A1 (fr) * 1998-10-20 2000-04-27 Pierre Vanden Brande Pompe moleculaire
AU763828B2 (en) * 1998-10-20 2003-07-31 Pierre Vanden Brande Molecular pump
US6612816B1 (en) 1998-10-20 2003-09-02 Pierre Vanden Brande Molecular pump
WO2003071132A2 (fr) * 2002-02-15 2003-08-28 Siemens Technology-To-Business Center, Llc Petites pompes a air piezoelectriques avec ecoulement d'air non obstrue
WO2003071132A3 (fr) * 2002-02-15 2007-12-21 Siemens Tech To Business Ct Petites pompes a air piezoelectriques avec ecoulement d'air non obstrue
US7417359B2 (en) 2002-02-15 2008-08-26 Siemens Technology-To-Business Center, Llc Small piezoelectric air pumps with unobstructed airflow
US7358649B2 (en) 2002-02-15 2008-04-15 Siemens Technology-To-Business Center, Llc Small piezoelectric air pumps with unobstructed airflow
US7061161B2 (en) 2002-02-15 2006-06-13 Siemens Technology-To-Business Center Llc Small piezoelectric air pumps with unobstructed airflow
US7282837B2 (en) 2002-02-15 2007-10-16 Siemens Technology-To-Business Center Llc Small piezoelectric air pumps with unobstructed airflow
CN100335779C (zh) * 2005-07-15 2007-09-05 清华大学 可实现正反向流体流动的行波驱动压电陶瓷泵
WO2007063206A1 (fr) * 2005-11-30 2007-06-07 Sam Amstar Circulateur a membrane
FR2893991A1 (fr) * 2005-11-30 2007-06-01 Jean Baptiste Drevet Circulateur a membrane
EP2743513A1 (fr) * 2012-12-13 2014-06-18 Goodrich Lighting Systems GmbH Dispositif pour générer un flux d'air de refroidissement d'un élément électronique de dissipation thermique, tel qu'une DEL
EP2743512A1 (fr) * 2012-12-13 2014-06-18 Goodrich Lighting Systems GmbH Procédé pour commander un élément mécanique vibratoire
US9572281B2 (en) 2012-12-13 2017-02-14 Goodrich Lighting Systems Gmbh Method for controlling a mechanical vibrating element
US9788457B2 (en) 2012-12-13 2017-10-10 Goodrich Lighting Systems Gmbh Device for generating an airflow for cooling a heat dissipating electronic element such as an LED
US10280945B2 (en) 2013-02-01 2019-05-07 Alcatel Lucent Device for moving air

Also Published As

Publication number Publication date
EP0028245A1 (fr) 1981-05-13
JPS56500576A (fr) 1981-04-30
JPS6315480B2 (fr) 1988-04-05
EP0028245A4 (fr) 1981-08-27
EP0028245B1 (fr) 1984-03-21
DE3067101D1 (en) 1984-04-26

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