FR2827345A1 - Motor fan unit with integrated control card for cooling engine for road vehicle has input and output openings arranged so that cooling airflow sweeps over card components - Google Patents

Motor fan unit with integrated control card for cooling engine for road vehicle has input and output openings arranged so that cooling airflow sweeps over card components Download PDF

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Publication number
FR2827345A1
FR2827345A1 FR0109344A FR0109344A FR2827345A1 FR 2827345 A1 FR2827345 A1 FR 2827345A1 FR 0109344 A FR0109344 A FR 0109344A FR 0109344 A FR0109344 A FR 0109344A FR 2827345 A1 FR2827345 A1 FR 2827345A1
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FR
France
Prior art keywords
motor
card
housing
air flow
control card
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.)
Withdrawn
Application number
FR0109344A
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French (fr)
Inventor
Daniel Marteau
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.)
Sagem SA
Original Assignee
Sagem SA
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Filing date
Publication date
Application filed by Sagem SA filed Critical Sagem SA
Priority to FR0109344A priority Critical patent/FR2827345A1/en
Publication of FR2827345A1 publication Critical patent/FR2827345A1/en
Withdrawn legal-status Critical Current

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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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5813—Cooling the control unit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/66—Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/28—Cooling of commutators, slip-rings or brushes e.g. by ventilating

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The unit includes an electric motor driving a fan. The motor is controlled by a control card (3) supporting components (5) and arranged adjacent to the motors axis. The card is integrated in a housing (12) having an input opening (18) on a side of the housing and an output opening (14) on the opposite side. The openings are arranged with respect to each other so that the air flow sweeps the components on the card. The card extends along a plane perpendicular to the motor axis and carries the motor brushes (10). The output opening is arranged so that the brushes are swept by the air flow. The card supports a radiator with fins (7) having ends (8) extending above the an edge of the card. The input opening is arranged so that the ends of the fins are swept by the air flow.

Description

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L'invention concerne un motoventilateur, employé notamment pour le refroidissement du moteur d'un véhicule automobile.  The invention relates to a motor fan, used in particular for cooling the motor of a motor vehicle.

On connaît des motoventilateurs comprenant un moteur électrique entraînant une hélice pour générer un flux d'air.  Motor fans are known comprising an electric motor driving a propeller to generate a flow of air.

Par exemple, le document FR 2777608 présente un motoventilateur dans lequel le moteur est commandé par une carte de commande s'étendant de façon adjacente à l'axe du moteur dans un plan perpendiculaire à ce dernier. Une partie de la carte est en saillie du moteur et est associée à un radiateur à ailettes s'étendant en regard d'une face de la carte tournée vers l'hélice. Le radiateur ainsi disposé est balayé par le flux d'air généré par l'hélice, ce qui permet de dissiper la chaleur générée par les composants portés par la partie de carte en saillie du moteur. Toutefois, d'après ce document, la carte de commande est enfermée dans un boîtier dont le radiateur constitue une des parois de sorte que les composants ne sont refroidis que par le flux d'air s'écoulant sur la face externe du radiateur et entre les ailettes qui s'étendent en saillie par rapport au boîtier.  For example, the document FR 2777608 discloses a motor fan in which the motor is controlled by a control card extending adjacent to the axis of the motor in a plane perpendicular to the latter. Part of the card protrudes from the engine and is associated with a finned radiator extending opposite a face of the card facing the propeller. The radiator thus disposed is swept by the air flow generated by the propeller, which dissipates the heat generated by the components carried by the protruding card portion of the engine. However, according to this document, the control card is enclosed in a housing whose radiator constitutes one of the walls so that the components are cooled only by the flow of air flowing on the outer face of the radiator and between the fins which protrude from the housing.

L'invention vise à améliorer la dissipation de la chaleur générée par les composants. Selon l'invention, le boîtier comporte une ouverture d'entrée débouchant sur un côté du boîtier et une ouverture de sortie débouchant sur un côté opposé du boîtier, les ouvertures d'entrée et de sortie étant disposées l'une par rapport à l'autre pour que le flux d'air balaye les composants de la carte de commande.  The invention aims to improve the dissipation of the heat generated by the components. According to the invention, the housing has an inlet opening opening on one side of the housing and an outlet opening opening on an opposite side of the housing, the inlet and outlet openings being arranged with respect to the housing. other for the airflow to sweep the control board components.

Ainsi, une partie de la chaleur générée par les composants est emmenée directement par le flux d'air balayant les composants, en complément de la chaleur dissipée par le radiateur.  Thus, part of the heat generated by the components is taken directly by the airflow sweeping the components, in addition to the heat dissipated by the radiator.

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Selon un agencement particulier, la carte de commande s'étend selon un plan perpendiculaire à l'axe du moteur et porte des balais du moteur, l'ouverture de sortie étant disposée de façon que les balais du moteur soient balayés par le flux d'air.  According to a particular arrangement, the control card extends in a plane perpendicular to the axis of the motor and carries brushes of the motor, the outlet opening being arranged so that the brushes of the motor are swept by the flow of the motor. air.

Cet agencement permet le refroidissement des balais, lesquels sont situés dans une zone éloignée du radiateur.  This arrangement allows the cooling of the brushes, which are located in an area remote from the radiator.

Selon un autre aspect de l'invention, la carte de commande s'étend selon un plan perpendiculaire à l'axe du moteur, la carte associée à un radiateur à ailettes ayant des extrémités qui s'étendent au delà d'un bord de la carte en travers de l'ouverture d'entrée. Ainsi, les extrémités des ailettes sont elles aussi balayées par le flux d'air.  According to another aspect of the invention, the control card extends in a plane perpendicular to the axis of the engine, the card associated with a finned radiator having ends that extend beyond an edge of the map across the entrance opening. Thus, the ends of the fins are also scanned by the air flow.

D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement à la lumière de la description qui suit d'un mode de réalisation particulier non limitatif de l'invention, en référence aux figures parmi lesquelles : - la figure 1 est une vue en perspective partielle d'un motoventilateur selon l'invention le boîtier de la protection de la carte de commande ayant été enlevé ; - la figure 2 est une vue en coupe partielle selon la ligne II-II de la figure 1.  Other features and advantages of the invention will emerge more clearly in the light of the following description of a particular non-limiting embodiment of the invention, with reference to the figures in which: FIG. partial perspective of a motor fan according to the invention the housing of the protection of the control card having been removed; - Figure 2 is a partial sectional view along the line II-II of Figure 1.

En référence à la figure 1, le motoventilateur comprend un carter 1 équipé d'un moteur électrique dont on aperçoit une extrémité 2 de l'axe. L'autre extrémité de l'axe porte une hélice non représentée, destinée à générer un flux d'air.  Referring to Figure 1, the fan comprises a casing 1 equipped with an electric motor which is seen at one end 2 of the axis. The other end of the axis carries a propeller not shown, for generating an air flow.

Le moteur du motoventilateur est commandé par une carte de commande 3 s'étendant dans un plan perpendiculaire à l'axe moteur. La carte de commande 3 comprend une partie de carte 4 en saillie du carter 1 et portant  The motor of the motor fan is controlled by a control card 3 extending in a plane perpendicular to the motor axis. The control card 3 comprises a card portion 4 projecting from the casing 1 and bearing

<Desc/Clms Page number 3><Desc / Clms Page number 3>

divers composants électroniques portant la référence commune 5.  various electronic components bearing the common reference 5.

Un radiateur 6 est fixé au carter 1 et s'étend en regard de la partie de carte 4 en saillie du carter 1. Le radiateur 6 comporte des ailettes 7 (visibles à la figure 2) s'étendant radialement depuis le carter 1 et ayant des extrémités 8 dépassant le rebord 17 du radiateur 6.  A radiator 6 is fixed to the casing 1 and extends opposite the card portion 4 projecting from the casing 1. The radiator 6 comprises fins 7 (visible in FIG. 2) extending radially from the casing 1 and having ends 8 protruding from the flange 17 of the radiator 6.

La carte de commande 3 comporte par ailleurs une partie de carte 9 s'étendant à proximité de l'axe du moteur et portant des balais 10 du moteur qui coopèrent avec le collecteur 11 de ce dernier.  The control card 3 furthermore comprises a card portion 9 extending close to the axis of the motor and carrying brushes 10 of the motor which cooperate with the collector 11 of the latter.

En référence à la figure 2, le motoventilateur comprend un boîtier 12 rapporté sur le carter 1 pour recouvrir complètement la carte de commande 3.  With reference to FIG. 2, the motor-fan comprises a housing 12 attached to the housing 1 to completely cover the control card 3.

Selon l'invention, le boîtier 12 comporte un fond 13 percé d'orifices 14 au niveau des balais 10 et du collecteur 11. Le boîtier 12 comporte une paroi latérale 15 épousant les contours extérieurs du carter 1 et de la partie de carte 4 en saillie du carter 1, sauf pour la portion de paroi latérale 16 qui s'étend autour des extrémités 8 des ailettes 7.  According to the invention, the housing 12 has a bottom 13 pierced with orifices 14 at the level of the brushes 10 and the manifold 11. The housing 12 has a lateral wall 15 conforming to the outer contours of the housing 1 and the card portion 4 protruding from the casing 1, except for the side wall portion 16 which extends around the ends 8 of the fins 7.

Le rebord 17 du radiateur 6 et la portion de paroi latérale 16 du boîtier 12 délimitent une ouverture d'entrée 18 au travers de laquelle s'étendent les extrémités 8 des ailettes 7.  The flange 17 of the radiator 6 and the side wall portion 16 of the housing 12 define an inlet opening 18 through which the ends 8 of the fins 7 extend.

Lors de la rotation de l'hélice, les ailettes 7 sont balayées directement par le flux d'air généré par l'hélice, comme cela est symboliquement représenté par les flèches en pointillés référencées FI. Simultanément, le flux d'air s'engouffre dans l'ouverture d'entrée 18 en passant entre les extrémités 8 des ailettes 7, balaye les composants 5, ainsi que les balais 10 et le collecteur 11, puis sort du boîtier 12 par les orifices 14, comme cela est symbolisé sur la figure 2 par des flèches en pointillés référencées F2.  During the rotation of the helix, the fins 7 are scanned directly by the air flow generated by the helix, as is symbolically represented by the dashed arrows referenced FI. Simultaneously, the flow of air rushes into the inlet opening 18 passing between the ends 8 of the fins 7, scans the components 5, as well as the brushes 10 and the collector 11, then leaves the housing 12 by the orifices 14, as is symbolized in FIG. 2 by dashed arrows referenced F2.

<Desc/Clms Page number 4> <Desc / Clms Page number 4>

Le flux d'air ainsi canalisé dans le boîtier 12 assure un refroidissement de tous les éléments balayés, plus particulièrement des balais 10 et du collecteur Il dont la chaleur ne peut être captée et dissipée par le radiateur 6 qui se trouve trop éloigné de ces éléments.  The flow of air thus channeled into the casing 12 ensures cooling of all the scanned elements, more particularly the brushes 10 and the collector II whose heat can not be picked up and dissipated by the radiator 6 which is too far from these elements .

L'invention n'est pas limitée au mode particulier de réalisation qui vient d'être décrit, mais bien au contraire entend couvrir toute variante qui entre dans le cadre de l'invention tel que défini par les revendications.  The invention is not limited to the particular embodiment that has just been described, but on the contrary intends to cover any variant that falls within the scope of the invention as defined by the claims.

Bien que l'on ait illustré une carte de commande s'étendant perpendiculairement à l'axe du moteur, l'invention s'étend à un motoventilateur dont la carte de commande est disposée selon un plan radial à l'axe du moteur de façon adjacente à celui-ci.  Although there is illustrated a control card extending perpendicularly to the axis of the motor, the invention extends to a motor fan whose control card is arranged in a radial plane to the motor axis so that adjacent to it.

Bien que dans l'exemple décrit ici l'ouverture d'entrée soit délimitée par le rebord 17 du radiateur 6 et la portion de paroi latérale 16 du boîtier 12, l'ouverture d'entrée pourra être plus généralement constituée par une ouverture ménagée sur un côté du boîtier et comportant un ou plusieurs orifices, par exemple des orifices formés par des perçages dans le radiateur, celui-ci s'étendant alors jusqu'à la portion de paroi latérale 16. L'ouverture peut en outre être équipée d'une grille de protection.  Although in the example described here the inlet opening is delimited by the flange 17 of the radiator 6 and the side wall portion 16 of the housing 12, the inlet opening may be more generally constituted by an opening on a side of the housing and having one or more orifices, for example orifices formed by holes in the radiator, the latter then extending to the side wall portion 16. The opening may further be equipped with a protective grid.

Bien que l'on ait illustré l'ouverture de sortie du flux d'air comme étant composée de plusieurs orifices 14, on pourra également prévoir une ouverture de sortie composée d'un seul orifice. Although the outlet opening of the air flow has been illustrated as being composed of several orifices 14, it will also be possible to provide an outlet opening composed of a single orifice.

Claims (3)

REVENDICATIONS l. Motoventilateur comprenant un moteur électrique entraînant une hélice pour générer un flux d'air, le moteur étant commandé par une carte de commande (3) portant des composants (5) et disposée de façon adjacente à l'axe du moteur, caractérisé en ce que la carte de commande (3) est intégrée dans un boîtier (12) comportant une ouverture d'entrée (18) débouchant sur un côté du boîtier et une ouverture de sortie (14) débouchant sur un côté opposé du boîtier, les ouvertures d'entrée (18) et de sortie (14) étant disposées l'une par rapport à l'autre pour que le flux d'air balaye les composants (5) de la carte de commande (3). CLAIMS l. Motor fan comprising an electric motor driving a propeller to generate an air flow, the motor being controlled by a control card (3) carrying components (5) and arranged adjacent to the axis of the motor, characterized in that the control board (3) is integrated in a housing (12) having an inlet opening (18) opening on one side of the housing and an outlet opening (14) opening on an opposite side of the housing, the openings of input (18) and output (14) being arranged relative to each other so that the air flow sweeps the components (5) of the control board (3). 2. Motoventilateur selon la revendication 1, caractérisé en ce que la carte de commande (3) s'étend selon un plan perpendiculaire à l'axe du moteur et porte des balais (10) du moteur, l'ouverture de sortie (14) étant disposée de façon que les balais (10) du moteur soient balayés par le flux d'air.  2. Motor fan according to claim 1, characterized in that the control board (3) extends in a plane perpendicular to the axis of the motor and carries brushes (10) of the motor, the outlet opening (14). being arranged so that the brushes (10) of the motor are swept by the air flow. 3. Motoventilateur selon la revendication 1, caractérisé en ce que la carte de commande (3) s'étend selon un plan perpendiculaire à l'axe du moteur, la carte de commande (3) portant un radiateur à ailettes (7) ayant des extrémités (8) s'étendant au delà d'un bord de la carte de commande (3), l'ouverture d'entrée (14) étant disposée de façon que les extrémités (8) des ailettes (7) soient balayées par le flux d'air. 3. Motor fan according to claim 1, characterized in that the control card (3) extends in a plane perpendicular to the axis of the motor, the control card (3) carrying a finned radiator (7) having ends (8) extending beyond an edge of the control board (3), the inlet opening (14) being arranged so that the ends (8) of the fins (7) are swept by the air flow.
FR0109344A 2001-07-13 2001-07-13 Motor fan unit with integrated control card for cooling engine for road vehicle has input and output openings arranged so that cooling airflow sweeps over card components Withdrawn FR2827345A1 (en)

Priority Applications (1)

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FR0109344A FR2827345A1 (en) 2001-07-13 2001-07-13 Motor fan unit with integrated control card for cooling engine for road vehicle has input and output openings arranged so that cooling airflow sweeps over card components

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FR0109344A FR2827345A1 (en) 2001-07-13 2001-07-13 Motor fan unit with integrated control card for cooling engine for road vehicle has input and output openings arranged so that cooling airflow sweeps over card components

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1703140A1 (en) * 2005-03-14 2006-09-20 ebm-papst Landshut GmbH Cooling device for a electrically driven centrifugal fan
US20080264600A1 (en) * 2005-10-20 2008-10-30 Behr Gmbh & Co. Kg Apparatus for Conveying a Cooling Air Flow
FR2920491A1 (en) * 2007-09-03 2009-03-06 Siemens Vdo Automotive Sas MOTOR FAN GROUP WITH ELECTRONIC CONTROL BOARD COOLED BY AIR PULSE
FR2943864A1 (en) * 2009-03-31 2010-10-01 Hkr Climatec Gmbh Ventilation device i.e. electric fan, for radiator in motor vehicle, has casings arranged to accommodate motor and control unit respectively, where other casing is mounted in former casing such that later casing exceeds former casing
CN102303519A (en) * 2010-04-30 2012-01-04 法雷奥电机控制系统公司 Electric fan component
WO2011138658A3 (en) * 2010-05-07 2012-01-19 Robert Bosch Gmbh Motor ring and splash shield arrangement for a fan assembly
GB2493975A (en) * 2011-08-26 2013-02-27 Dyson Technology Ltd Turbo-machine with control circuit cooled by heat sink
FR3024635A1 (en) * 2014-07-30 2016-02-05 Cartier Technologies G CONTROL DEVICE FOR ELECTRIC MOTOR OF EXCHANGER VENTILATION
US9410553B2 (en) 2011-08-26 2016-08-09 Dyson Technology Limited Rotor assembly for a turbomachine
US9410442B2 (en) 2011-08-26 2016-08-09 Dyson Technology Limited Turbomachine
US9863429B2 (en) 2011-08-26 2018-01-09 Dyson Technology Limited Rotor assembly for a turbomachine
FR3079366A1 (en) * 2018-03-21 2019-09-27 Valeo Systemes Thermiques SPEED MOTOR FAN MOTOR SPEED CONTROL UNIT ASSEMBLY AND MOTOR FAN MOTOR MOTOR BRUSH SUPPORT ASSEMBLY

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2764747A1 (en) * 1997-06-16 1998-12-18 Valeo Systemes Dessuyage Brush-carrier cooling arrangement for automobile fan motor
FR2777608A1 (en) 1998-04-17 1999-10-22 Sagem Cooling fan with integrated regulator block used in road vehicle engines
US6158979A (en) * 1997-07-17 2000-12-12 Valeo Climatisation And Valeo Thermique Moteur Device for fixing a motor-fan unit on a motor vehicle element, in particular a heat exchanger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2764747A1 (en) * 1997-06-16 1998-12-18 Valeo Systemes Dessuyage Brush-carrier cooling arrangement for automobile fan motor
US6158979A (en) * 1997-07-17 2000-12-12 Valeo Climatisation And Valeo Thermique Moteur Device for fixing a motor-fan unit on a motor vehicle element, in particular a heat exchanger
FR2777608A1 (en) 1998-04-17 1999-10-22 Sagem Cooling fan with integrated regulator block used in road vehicle engines

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1703140A1 (en) * 2005-03-14 2006-09-20 ebm-papst Landshut GmbH Cooling device for a electrically driven centrifugal fan
US20080264600A1 (en) * 2005-10-20 2008-10-30 Behr Gmbh & Co. Kg Apparatus for Conveying a Cooling Air Flow
US8230910B2 (en) * 2005-10-20 2012-07-31 Behr Gmbh & Co. Kg Apparatus for conveying a cooling air flow having a cooling domes
FR2920491A1 (en) * 2007-09-03 2009-03-06 Siemens Vdo Automotive Sas MOTOR FAN GROUP WITH ELECTRONIC CONTROL BOARD COOLED BY AIR PULSE
WO2009030678A2 (en) 2007-09-03 2009-03-12 Siemens Vdo Automotive Sas Fan-motor unit
WO2009030678A3 (en) * 2007-09-03 2009-05-14 Siemens Vdo Automotive Sas Fan-motor unit
CN101815874B (en) * 2007-09-03 2012-05-23 博泽汽车部件有限公司及两合公司,乌茨堡 Fan-motor unit
US8212439B2 (en) 2007-09-03 2012-07-03 Brose Fahrzeugteile Gmbh & Co. Kg, Wurzburg Fan-motor unit
FR2943864A1 (en) * 2009-03-31 2010-10-01 Hkr Climatec Gmbh Ventilation device i.e. electric fan, for radiator in motor vehicle, has casings arranged to accommodate motor and control unit respectively, where other casing is mounted in former casing such that later casing exceeds former casing
CN102303519A (en) * 2010-04-30 2012-01-04 法雷奥电机控制系统公司 Electric fan component
US8664811B2 (en) * 2010-04-30 2014-03-04 Valeo Systemes De Controle Moteur Device having a brush-holder plate for supplying electrical current to an electric fan set of a motor vehicle and a support for an electronic circuit for supplying said motor and a means for joining the support to the brush-holder plate
CN102971541A (en) * 2010-05-07 2013-03-13 罗伯特·博世有限公司 Motor ring and splash shield arrangement for a fan assembly
CN102971541B (en) * 2010-05-07 2016-06-15 罗伯特·博世有限公司 The motor ring of fan component and splash guard device
WO2011138658A3 (en) * 2010-05-07 2012-01-19 Robert Bosch Gmbh Motor ring and splash shield arrangement for a fan assembly
EP2562425A3 (en) * 2011-08-26 2016-02-24 Dyson Technology Limited Turbomachine
US9169843B2 (en) 2011-08-26 2015-10-27 Dyson Technology Limited Turbomachine
GB2493975A (en) * 2011-08-26 2013-02-27 Dyson Technology Ltd Turbo-machine with control circuit cooled by heat sink
GB2493975B (en) * 2011-08-26 2015-02-11 Dyson Technology Ltd Turbomachine
US9410553B2 (en) 2011-08-26 2016-08-09 Dyson Technology Limited Rotor assembly for a turbomachine
US9410442B2 (en) 2011-08-26 2016-08-09 Dyson Technology Limited Turbomachine
US9863429B2 (en) 2011-08-26 2018-01-09 Dyson Technology Limited Rotor assembly for a turbomachine
US11668322B2 (en) 2011-08-26 2023-06-06 Dyson Technology Limited Turbomachine
FR3024635A1 (en) * 2014-07-30 2016-02-05 Cartier Technologies G CONTROL DEVICE FOR ELECTRIC MOTOR OF EXCHANGER VENTILATION
EP2988004A1 (en) * 2014-07-30 2016-02-24 G. Cartier Technologies Control device for electric motor for exchanger ventilation
FR3079366A1 (en) * 2018-03-21 2019-09-27 Valeo Systemes Thermiques SPEED MOTOR FAN MOTOR SPEED CONTROL UNIT ASSEMBLY AND MOTOR FAN MOTOR MOTOR BRUSH SUPPORT ASSEMBLY

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