EP1565905B1 - Procede et dispositif de refroidissement de transducteurs d'ultrasons - Google Patents

Procede et dispositif de refroidissement de transducteurs d'ultrasons Download PDF

Info

Publication number
EP1565905B1
EP1565905B1 EP03767582A EP03767582A EP1565905B1 EP 1565905 B1 EP1565905 B1 EP 1565905B1 EP 03767582 A EP03767582 A EP 03767582A EP 03767582 A EP03767582 A EP 03767582A EP 1565905 B1 EP1565905 B1 EP 1565905B1
Authority
EP
European Patent Office
Prior art keywords
flow
cooling fluid
transducer
cooling
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.)
Expired - Lifetime
Application number
EP03767582A
Other languages
German (de)
English (en)
Other versions
EP1565905A2 (fr
Inventor
Harald Hielscher
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.)
Dr Hielscher GmbH
Original Assignee
Dr Hielscher 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 Dr Hielscher GmbH filed Critical Dr Hielscher GmbH
Publication of EP1565905A2 publication Critical patent/EP1565905A2/fr
Application granted granted Critical
Publication of EP1565905B1 publication Critical patent/EP1565905B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
    • B06B1/0611—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile

Definitions

  • the invention relates to a method and a device for cooling of ultrasonic transducers with the features mentioned in the preambles of claims 1 and 6.
  • a cooling system for a high-frequency ultrasound transducer is known, which is based on the principle of heat conduction.
  • a heat sink in the form of a heat sink.
  • the heat sink is in turn connected by means of a thermally conductive resin to a housing. The heat is first transferred from the converter into the heat sink and from there via the resin into the surrounding housing, where the heat is ultimately dissipated to the surrounding air.
  • This type of cooling is insufficient for high performance and not applicable for high amplitudes of several micrometers, because it is a high energy input into the resin.
  • WO 0008630 A1 an arrangement for heat dissipation, in particular for ultrasonic transducer high power known.
  • the heat dissipation is based on the combination of heat conduction and convection.
  • the surface of the transducer body is provided with a vibration-absorbing layer, which reduces the mechanical friction losses during heat transfer.
  • a layer of thermally conductive material Above it is a layer of thermally conductive material.
  • a cooling body is arranged, from which the heat can be dissipated by means of a coolant by convection.
  • the disadvantage of this arrangement is that the temperature gradients created by the layer transitions cause a reduction in the efficiency of heat dissipation.
  • the maximum possible common contact surface between the transducer and cooling device is limited to the transducer surface, whereby the continuous operation of high-power ultrasound transducers can be ensured only by supplying large amounts of coolant, resulting in a low cost of the process results.
  • this object is achieved by a method having the features mentioned in claim 1 and a device having the features mentioned in claim 6.
  • the inventive method for cooling of ultrasonic transducers is characterized in that the body of the ultrasonic transducer flows through a introduced under pressure cooling fluid and / or flows around. In this way, it is advantageously achieved that the heat generated in the transducers is dissipated directly by convection. No heat transfer via cooling elements is required. By flowing through the transducer body, a large common contact surface between transducers and coolant is realized. The achieved heat dissipation is much more effective than in the known methods, so that can be ensured with the inventive compositions of the continuous operation of ultrasonic transducers high performance.
  • the flow through the body of the ultrasonic transducer from the inside to the outside, wherein the liquid pressure is built up in the interior and the cooling liquid flows through the housing, or from the outside to the inside, wherein the pressure is built up in the outdoor area and the cooling liquid flows over the inner area, is realized.
  • the flow takes place in such a way that pressure is built up to prevent cavitation both in the interior and in the exterior, wherein a pressure gradient between the interior and exterior is required for the flow of the cooling liquid.
  • the body of the ultrasonic transducer is flowed around in the interior and / or in the outer area, since in this way heat is removed from the converter surface by convection.
  • the interior is in this case in particular the cavity between the tension rod and transducer body, the outside area, in particular the space between the transducer body and housing.
  • the cooling liquid is an electrically non-conductive liquid, as this electrical short circuits are avoided.
  • the pressure of the cooling liquid is dimensioned such that the cavitation is reducible or avoidable.
  • the pressure is preferably set in a range from 200 to 2000 kPa (2 to 20 bar). Particularly preferred 500 kPa (5 bar) are provided. This will be advantageous achieved that the risk of damage to the device is significantly reduced by cavitation and that an additional power input by cavitation generation is reduced or avoided.
  • At least one flow channel is slit-shaped, as a result, a large common contact surface between the converter body and the cooling liquid can be realized. This leads to a higher efficiency in heat dissipation.
  • the device comprises a arranged in a cavity of the at least two transducer body tension rod having at least two openings and at least one guide channel through which the introduced under pressure cooling liquid can be flowed.
  • the cooling liquid can be supplied via the at least one guide channel and can be discharged via the at least one throughflow channel. It is furthermore preferably provided that the cooling fluid can be supplied via the at least one flow channel and can be discharged via the at least one guide channel in the tension rod. In this way, a particularly easy-to-handle and realizable possibility of the flow through the transducer body from the inside to the outside or from the outside to the inside is given.
  • the device comprises a liquid-tight housing.
  • the housing serves on the one hand to protect the active elements of the transducer and also offers a particularly favorable possibility of receiving and guiding the coolant.
  • the device comprises a flange which is connected to the housing and / or a horn and / or an end mass. Through the flange a particularly easy to be realized mounting option of the housing is achieved. Furthermore, a particularly favorable possibility of connection with a sonotrode is given by the horn.
  • the device has at least one connection device for a coolant line, through which the cooling fluid can be discharged into the cavity of the transducer body and / or can be discharged from the cavity.
  • the device has at least one connection device for a coolant line, through which the cooling liquid in the at least one guide channel is flowable and / or discharged from the at least one guide channel.
  • the device has at least one connection device for a coolant line through which the coolant can flow into the housing and / or can be discharged from the housing.
  • At least one of the at least two transducer body is at least partially flowed around on the inner surface and / or at least partially on the outer surface of the cooling liquid.
  • the transducer bodies have no through-flow channels.
  • the converter bodies are merely flowed around, with the interior space being connected to the outside space by a connecting channel.
  • FIG. 1 is shown schematically the longitudinal section of an ultrasonic transducer with an embodiment of the device according to the invention for cooling the ultrasonic transducer.
  • the ultrasonic transducer is composed of cylindrical transducer bodies 5, 6, each having piezoelectric packages 4 arranged on the front side between two transducer bodies 5, 6, some of the transducer bodies 5, 6 being designed as common transducer bodies 6, on the front sides of which in each case a piezoelectric package 4 is arranged.
  • a piezo package 4 forms with one of the transducer body 5 and half of the common transducer body 6 or with each half of two common transducer body 6 a ⁇ / 2 oscillator.
  • the transducer bodies 5, 6 have flow-through channels 7 in the radial direction.
  • Transducer body 5, 6 and 4 piezo packages are alternately lined up on a tension rod 3 with end threads.
  • the tension rod 3 has a guide channel 13 for cooling liquid, wherein at one end of a connecting device for a coolant line 1 is attached, which forms the inlet 1 for the cooling liquid.
  • the tension rod has an outlet opening for the coolant flowing out of the guide channel into the cavity 11 of the transducer body.
  • the opposite end mass 10 is connected to a horn 8, which is the connection option with a sonotrode and serves to transmit the mechanical vibrations generated by the transducer.
  • the device is provided with a liquid-tight housing 12 for receiving the cooling liquid, which is connected to a flange 9, which offers a possibility for mounting in an external plant.
  • the flange 9 is connected to the horn 8.
  • the flange 9 has a connection device for a coolant line 2, which forms the outlet 2 for the cooling liquid from the housing 12.
  • the coolant line for the inlet 1 is guided through the housing 12.
  • the cooling liquid is introduced via the inlet 1 under pressure into the guide channel 13 of the tension rod 3. Via the guide channel 13, the cooling liquid is supplied to the cavity 11 of the transducer body, where the transducer body are flowed through by the cooling liquid to ultimately flow through the flow channels 7 of the transducer body 5, 6.
  • the heat generated by the transducers is transferred in this way directly by convection to the cooling liquid.
  • the exiting from the flow channels 7 cooling liquid is collected in the housing 12 and discharged via the outlet 2 from the device. In this way, a more effective cooling of the ultrasonic transducer is achieved than in the known methods. With the aid of the means according to the invention, the continuous operation of high-power ultrasonic transducers is also ensured.
  • circular holes can be attached to the ends of the flow channels.
  • the diameter of the bores is expediently greater than the width of the slots.
  • FIG. 2 shows schematically the longitudinal section of the structure of an ultrasonic transducer with a further embodiment of the device according to the invention for cooling the ultrasonic transducer, which substantially the in FIG. 1 shown corresponds.
  • two inlets 1 for the cooling liquid present which are each arranged radially and are guided from the outside through the housing 12 and the end masses 10 into the cavity 11 between the tension rod 3 and transducer body 5, 6.
  • the connection means 1 for the connection of the cooling liquid lines to the cavity 11 are thus arranged at the opposite ends of the transducer. In this way, the cooling liquid is introduced from the opposite ends under pressure into the cavity 11 and discharged through the flow channels 7. This results in a more uniform heat dissipation over the entire length of the device as in FIG. 1 , It is thus an even more effective cooling of the ultrasonic transducer as with in FIG. 1 achieved embodiment shown.
  • FIG. 3 shows a further embodiment of the invention, in which the transducer body 5, 6 have no flow channels 7.
  • the inner space 11 is connected to the outer space 14 via a connecting channel 15.
  • the cooling liquid is supplied via the inlet 1, passes through the guide channel 13 into the interior 11, flows around and cools the transducer body 5, 6, leaves the interior 11 via the connection channel 15 and is discharged via the exterior space 14 and the outlet 2 dissipated.
  • the inside of the transducer body 5, 6 is cooled.
  • it is possible in a second variant only to cool the outside of the transducer body 5, 6, 17 is supplied via the housing inlet 1a and a ring line 17 cooling liquid.
  • the over the housing inlet 1a supplied coolant is uniformly supplied and distributed through the ring line 17 and now flows around the outside of the converter 5, 6 or at least here forms a coolant film and is discharged via the outlet 2.
  • a gas pressure is generated in the present embodiment via the gas pressure port 6 in the housing 12, which is 6 bar in this embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Surgical Instruments (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Claims (10)

  1. Procédé de refroidissement de transducteurs d'ultrasons par dissipation de la chaleur générée par la puissance dissipée, caractérisé en ce que
    - le corps du transducteur d'ultrasons est parcouru et/ou entouré d'un liquide de refroidissement,
    - une pression est générée dans le liquide de refroidissement et ajustée dans la plage de 200 à 2000 kPa, la pression étant dimensionnée de telle manière que la cavitation soit réduite ou évitée, et
    - la pression est générée par le dimensionnement de canaux d'écoulement et/ou par pression de gaz.
  2. Procédé selon la revendication 1, caractérisé en ce que la pression du liquide de refroidissement s'élève de préférence à 500 kPA.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'écoulement à travers le corps du transducteur d'ultrasons est réalisé de la zone intérieure à la zone extérieure ou de la zone extérieure à la zone intérieure.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que le corps du transducteur d'ultrasons est entouré par le liquide de refroidissement dans la zone intérieure et/ou dans la zone extérieure.
  5. Procédé selon l'une de revendications 1 à 4, caractérisé en ce que le liquide de refroidissement est un liquide électriquement non conducteur.
  6. Dispositif de refroidissement de transducteurs d'ultrasons, consistant en au moins un paquet (4) piézo-électrique et au moins deux corps (5) transducteurs cylindriques qui forment, avec le paquet (4) piézo-électrique, un oscillateur λ/2 ; dans lequel, dans le cas d'accouplements de transducteurs, respectivement deux corps transducteurs peuvent être associés pour former un corps (6) transducteur commun, caractérisé en ce que les corps (5, 6) transducteurs sont entourés d'un espace (11) intérieur et d'un espace (14) extérieur, et qu'au moins l'un des deux corps (5, 6) transducteurs comprend au moins un canal (7) d'écoulement à travers lequel peut s'écouler un liquide de refroidissement injecté sous pression, et/ou qu'au moins un canal (15) de liaison est disposé entre l'espace (11) intérieur et l'espace (14) extérieur, la pression étant dimensionnée de telle manière que la cavitation soit réduite ou évitée et que la pression soit ajustée dans la plage de 200 à 2000 kPA et s'élève de préférence à 500 kPA.
  7. Dispositif selon la revendication 6, caractérisé en ce qu'au moins un canal (7) d'écoulement est réalisé en forme de fente, et que le dispositif comprend une barre (3) de tension disposée dans une cavité (11) formée par au moins deux corps (5, 6) transducteurs et ayant au moins une ouverture et au moins un canal (13) de guidage à travers lequel peut s'écouler le liquide de refroidissement injecté sous pression, et que le liquide de refroidissement peut être amené par l'au moins un canal (13) de guidage et être dissipé par l'au moins un canal (7) d'écoulement, et que le liquide de refroidissement peut être amené par l'au moins un canal (7) d'écoulement et être dissipé par l'au moins un canal (13) de guidage situé dans la barre (3) de tension.
  8. Dispositif selon l'une des revendications 6 ou 7, caractérisé en ce que le dispositif comprend un boîtier (12) étanche aux liquides et une bride reliée au boîtier (12) et à un cornet (8), et que le dispositif comprend respectivement au moins un dispositif (1, 2) de raccordement pour une conduite de liquide de refroidissement à travers laquelle le liquide de refroidissement peut s'écouler dans la cavité (11) et/ou être dissipé de la cavité (11), ou que le dispositif comprend respectivement au moins un dispositif (1, 2) de raccordement pour une conduite de liquide de refroidissement à travers laquelle le liquide de refroidissement peut s'écouler dans l'au moins un canal (13) de guidage et/ou être dissipé de l'au moins un canal (13) de guidage, ou que le dispositif comprend au moins un dispositif (1a, 2) de raccordement pour une conduite de liquide de refroidissement à travers laquelle le liquide de refroidissement peut s'écouler dans le boîtier (12) et/ou être dissipé du boîtier (12).
  9. Dispositif selon l'une des revendications 6 à 8, caractérisé en ce que l'au moins un des au moins deux corps (5, 6) transducteurs peut être entouré du liquide de refroidissement au moins en partie à la zone intérieure et/ou au moins en partie à la zone extérieure.
  10. Dispositif selon l'une des revendications 6 à 9, caractérisé en ce que les canaux (7) d'écoulement comprennent des ouvertures à leurs extrémités dont le diamètre est supérieur à la largeur des canaux (7) d'écoulement.
EP03767582A 2002-11-20 2003-11-19 Procede et dispositif de refroidissement de transducteurs d'ultrasons Expired - Lifetime EP1565905B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10254894 2002-11-20
DE10254894A DE10254894B3 (de) 2002-11-20 2002-11-20 Vorrichtung zur Kühlung von Ultraschallwandlern
PCT/EP2003/013003 WO2004047073A2 (fr) 2002-11-20 2003-11-19 Procede et dispositif de refroidissement de transducteurs d'ultrasons

Publications (2)

Publication Number Publication Date
EP1565905A2 EP1565905A2 (fr) 2005-08-24
EP1565905B1 true EP1565905B1 (fr) 2011-10-05

Family

ID=32185938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03767582A Expired - Lifetime EP1565905B1 (fr) 2002-11-20 2003-11-19 Procede et dispositif de refroidissement de transducteurs d'ultrasons

Country Status (9)

Country Link
US (1) US8004158B2 (fr)
EP (1) EP1565905B1 (fr)
JP (1) JP4739759B2 (fr)
KR (1) KR101248716B1 (fr)
CN (1) CN1739137A (fr)
AT (1) ATE527651T1 (fr)
AU (1) AU2003292052A1 (fr)
DE (1) DE10254894B3 (fr)
WO (1) WO2004047073A2 (fr)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10254894B3 (de) * 2002-11-20 2004-05-27 Dr. Hielscher Gmbh Vorrichtung zur Kühlung von Ultraschallwandlern
EP1868182A1 (fr) * 2006-06-14 2007-12-19 Telsonic Holding AG Générateur d'ultrasons avec liquide de refroidissement, système de soudure, et procédé d'opération d'un générateur d'ultrasons
US8475375B2 (en) * 2006-12-15 2013-07-02 General Electric Company System and method for actively cooling an ultrasound probe
US7879200B2 (en) * 2007-07-05 2011-02-01 Nevada Heat Treating, Inc. Ultrasonic transducer and horn used in oxidative desulfurization of fossil fuels
US7790002B2 (en) * 2007-07-05 2010-09-07 Nevada Heat Treating, Inc. Ultrasonic transducer and horn used in oxidative desulfurization of fossil fuels
FR2929040B1 (fr) * 2008-03-18 2010-04-23 Super Sonic Imagine Dispositif d'insonification presentant une chambre de refroidissement interne
US20100191113A1 (en) * 2009-01-28 2010-07-29 General Electric Company Systems and methods for ultrasound imaging with reduced thermal dose
RU2452872C2 (ru) 2010-07-15 2012-06-10 Андрей Леонидович Кузнецов Пьезоэлектрический насос
KR20150002749A (ko) * 2012-04-03 2015-01-07 지멘스 악티엔게젤샤프트 냉각 디바이스
DE102012014892A1 (de) * 2012-07-27 2014-01-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Stellantrieb und Verfahren zum Entwärmen eines in einem Stellantrieb mit einem Stellglied eingehausten Festkörperaktors
US10295505B2 (en) * 2014-01-21 2019-05-21 Promedica Bioelectronics S.R.L. Device for ultrasound tests
RU2665744C2 (ru) 2014-03-31 2018-09-04 Общество С Ограниченной Ответственностью "Рэнк" Устройство для создания механических колебаний
CN104148270A (zh) * 2014-08-05 2014-11-19 曹学良 一种适用于防爆环境的换能器连接方式
CN106139426A (zh) * 2015-04-16 2016-11-23 金相植 具有液体冷却系统的超声波手术用手持件以及装置
US11039814B2 (en) 2016-12-04 2021-06-22 Exo Imaging, Inc. Imaging devices having piezoelectric transducers
RU2667476C2 (ru) * 2016-12-05 2018-09-20 Общество с Ограниченной Ответственностью "РЭНК" ООО "РЭНК" Шаговый пьезоэлектрический двигатель
CN108333574B (zh) * 2017-12-22 2022-09-06 中国船舶重工集团公司第七一五研究所 一种特殊空间覆盖的水声换能器
US10656007B2 (en) 2018-04-11 2020-05-19 Exo Imaging Inc. Asymmetrical ultrasound transducer array
US10648852B2 (en) 2018-04-11 2020-05-12 Exo Imaging Inc. Imaging devices having piezoelectric transceivers
EP3857308A4 (fr) 2018-09-25 2022-06-08 Exo Imaging Inc. Dispositifs d'imagerie à caractéristiques sélectivement modifiables
CN109513598B (zh) * 2018-12-28 2023-09-19 深圳先进技术研究院 背衬结构、背衬结构的制作方法以及超声换能器
CN110479687B (zh) * 2019-08-01 2022-04-15 合肥国轩高科动力能源有限公司 一种动力电池铝壳的超声清洗装置
TW202337051A (zh) 2019-09-12 2023-09-16 美商艾克索影像股份有限公司 經由邊緣溝槽、虛擬樞軸及自由邊界而增強的微加工超音波傳感器(mut)耦合效率及頻寬
WO2021068064A1 (fr) 2019-10-10 2021-04-15 Sunnybrook Research Institute Systèmes et procédés permettant de refroidir des transducteurs ultrasonores et des réseaux de transducteurs ultrasonores
CN111111583A (zh) * 2019-12-17 2020-05-08 湖州师范学院 一种多超声耦合强化高粘度有机废弃物热解炭化装置
CN113795789B (zh) 2020-03-05 2022-10-25 艾科索成像公司 具有可编程解剖和流成像的超声成像装置
CN112370595B (zh) * 2020-11-13 2023-04-14 武汉盛大康成医药科技有限公司 多功能清创仪
US11951512B2 (en) 2021-03-31 2024-04-09 Exo Imaging, Inc. Imaging devices having piezoelectric transceivers with harmonic characteristics
US11819881B2 (en) 2021-03-31 2023-11-21 Exo Imaging, Inc. Imaging devices having piezoelectric transceivers with harmonic characteristics
DE102021123704A1 (de) 2021-09-14 2023-03-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Ultraschallwandler, verfahren zur herstellung eines ultraschallwandlers und vorrichtung für eine medizinische therapie mit hochintensivem fokussiertem ultraschall

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917642A (en) * 1955-02-21 1959-12-15 Wright Pressure-responsive transducer
US3104335A (en) * 1959-09-15 1963-09-17 Endevco Corp Accelerometer
AT215704B (de) * 1959-10-02 1961-06-26 Hans Dipl Ing Dr Techn List Piezoelektrischer Druckgeber
US3555297A (en) * 1969-10-13 1971-01-12 Eastman Kodak Co Cooled ultrasonic transducer
CA933276A (en) * 1971-02-05 1973-09-04 J. Last Anthony Ultrasonic motor
US3694675A (en) * 1971-02-25 1972-09-26 Eastman Kodak Co Cooled ultrasonic transducer
GB2137316A (en) * 1983-03-31 1984-10-03 Paul Fuller Valve apparatus
JPS60104762A (ja) * 1983-11-10 1985-06-10 Nippon Soken Inc 電歪式アクチュエータ及びそれを用いた燃料噴射弁
DE4026458A1 (de) * 1990-08-17 1992-02-20 Mannesmann Ag Us-pruefvorrichtung
FR2665844B1 (fr) * 1990-08-20 1996-02-09 Cogema Traitement d'agglomerats de particules solides en suspension dans un liquide afin d'obtenir un melange circulant sans depots.
JPH04181041A (ja) * 1990-11-16 1992-06-29 Toyota Motor Corp 車両振動低減装置
US5213103A (en) * 1992-01-31 1993-05-25 Acoustic Imaging Technologies Corp. Apparatus for and method of cooling ultrasonic medical transducers by conductive heat transfer
US5371429A (en) * 1993-09-28 1994-12-06 Misonix, Inc. Electromechanical transducer device
US5560362A (en) 1994-06-13 1996-10-01 Acuson Corporation Active thermal control of ultrasound transducers
US5630420A (en) * 1995-09-29 1997-05-20 Ethicon Endo-Surgery, Inc. Ultrasonic instrument for surgical applications
US5721463A (en) * 1995-12-29 1998-02-24 General Electric Company Method and apparatus for transferring heat from transducer array of ultrasonic probe
US5961465A (en) 1998-02-10 1999-10-05 Hewlett-Packard Company Ultrasound signal processing electronics with active cooling
US5955823A (en) 1998-05-12 1999-09-21 Ultra Sonus Ab High power ultrasonic transducer
US5936163A (en) * 1998-05-13 1999-08-10 Greathouse; John D. Portable high temperature ultrasonic testing (UT) piezo probe with cooling apparatus
DE19836229C1 (de) 1998-08-04 2000-03-23 Hielscher Gmbh Anordnung zur Wärmeableitung, insbesondere für Ultraschallwandler mit hoher Leistung
DE19837262A1 (de) 1998-08-17 2000-03-09 Kari Richter Ultraschall-Applikator
DE10027264C5 (de) * 2000-05-31 2004-10-28 Dr. Hielscher Gmbh Ultraschallwandler
DE10254894B3 (de) * 2002-11-20 2004-05-27 Dr. Hielscher Gmbh Vorrichtung zur Kühlung von Ultraschallwandlern

Also Published As

Publication number Publication date
JP2006506633A (ja) 2006-02-23
US20060126884A1 (en) 2006-06-15
ATE527651T1 (de) 2011-10-15
KR101248716B1 (ko) 2013-03-28
WO2004047073A2 (fr) 2004-06-03
EP1565905A2 (fr) 2005-08-24
DE10254894B3 (de) 2004-05-27
KR20050075035A (ko) 2005-07-19
CN1739137A (zh) 2006-02-22
JP4739759B2 (ja) 2011-08-03
WO2004047073A3 (fr) 2004-09-10
US8004158B2 (en) 2011-08-23
AU2003292052A1 (en) 2004-06-15

Similar Documents

Publication Publication Date Title
EP1565905B1 (fr) Procede et dispositif de refroidissement de transducteurs d'ultrasons
DE112007000829B4 (de) Anordnung aus Wechselrichter und Kühler und ihre Verwendung
DE102005002897B4 (de) Flüssigkeitsgekühlte elektrische Maschine mit Gussgehäuse
DE3403429C2 (fr)
EP1398511A1 (fr) Système de refroidissement local
WO2011006978A1 (fr) Dispositif thermoélectrique doté de faisceaux de tubes
DE102006014305B4 (de) Kühleinrichtung zur Anordnung zwischen zwei Flächenspulen einer Gradientenspule, Gradientenspule umfassend eine solche Kühleinrichtung sowie Verfahren zur He rstellung einer solchen Gradientenspule
WO2008083838A1 (fr) Bloc à semi-conducteurs destiné à être connecté à un enroulement de transformateur et ensemble transformateur ainsi obtenu
WO2017036757A1 (fr) Porte-outil
EP1859436B1 (fr) Transducteur a tige pour les utltrasons destine a produire un ultrason dans des liquides
EP2815638B1 (fr) Dispositif de refroidissement
DE102007032496B3 (de) Vorrichtung zur Erzeugung eines Plasma-Jets
EP1653592A2 (fr) Mecanisme d'entrainement pour machines-outils
EP2847464B1 (fr) Dispositif et ensemble pour production d'un courant d'air
WO2021198477A1 (fr) Dispositif de durcissement de revêtement de tuyau
EP2562485B1 (fr) Chauffage de milieux
DE102012219943A1 (de) Kühlvorrichtung für einen Elektromotor
EP3593078B1 (fr) Dispositif de refroidissement
WO2009015956A1 (fr) Pompe à liquide
EP2174014A1 (fr) Procédé d'évacuation de la chaleur des composants d'une pompe à liquide
DE102017205701B4 (de) Hochvoltspeicher
EP1785206A1 (fr) Procédé et dispositif de refroidissement une coquille pour la coulée continue par vapeur
DE10151992B4 (de) Kühlelement zum Einsatz in schwingenden Systemen
EP2112745A1 (fr) Procédé de refroidissement d'un conducteur électrique
WO2018001525A1 (fr) Unité de boîte de refroidissement et système électronique de puissance doté d'une unité de boîte de refroidissement

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050620

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20091005

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 50313990

Country of ref document: DE

Effective date: 20111208

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATENTANWAELTE SCHAAD, BALASS, MENZL & PARTNER AG

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20111005

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

BERE Be: lapsed

Owner name: DR. HIELSCHER G.M.B.H.

Effective date: 20111130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120106

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120206

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120105

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111130

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

26N No opposition filed

Effective date: 20120706

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50313990

Country of ref document: DE

Effective date: 20120601

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 527651

Country of ref document: AT

Kind code of ref document: T

Effective date: 20111119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111005

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20181219

Year of fee payment: 16

Ref country code: FR

Payment date: 20181227

Year of fee payment: 16

Ref country code: CH

Payment date: 20181219

Year of fee payment: 16

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20191119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191119

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130