EP0904491A2 - Appareil d'alimentation d'un dispositif en liquide pressurise, et moteur/generateur correspondant refroidi par flux grande vitesse - Google Patents

Appareil d'alimentation d'un dispositif en liquide pressurise, et moteur/generateur correspondant refroidi par flux grande vitesse

Info

Publication number
EP0904491A2
EP0904491A2 EP97927757A EP97927757A EP0904491A2 EP 0904491 A2 EP0904491 A2 EP 0904491A2 EP 97927757 A EP97927757 A EP 97927757A EP 97927757 A EP97927757 A EP 97927757A EP 0904491 A2 EP0904491 A2 EP 0904491A2
Authority
EP
European Patent Office
Prior art keywords
motor
pump
rotor
liquid
machine
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Withdrawn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
EP97927757A
Other languages
German (de)
English (en)
Inventor
Madan L. Bansal
William Durtschi
Scott Thomson
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.)
Sundstrand Corp
Original Assignee
Sundstrand Corp
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 Sundstrand Corp filed Critical Sundstrand Corp
Publication of EP0904491A2 publication Critical patent/EP0904491A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/14—Combinations of two or more pumps the pumps being of different types at least one pump being of the non-positive-displacement type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/08—Cooling; Heating; Preventing freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0096—Heating; Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
    • 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
    • H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
    • H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
    • H02K11/05—Rectifiers associated with casings, enclosures or brackets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
    • H02K2205/12—Machines characterised by means for reducing windage losses or windage noise
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Definitions

  • the present invention relates to an improved apparatus for providing
  • induction motors are used to drive hydraulic pumps for
  • rotor of the motor has to be relatively small, less than 0.1 inch, and typically .03-
  • An object of the present invention is to provide an improved apparatus for
  • apparatus of the invention for providing a large volume of pressurized liquid to a
  • the apparatus comprises a pump for pumping a liquid, a high speed flood
  • the motor as a variable speed motor.
  • a permanent magnet dynamoelectric machine is used for better efficiency
  • the motor includes a stator and a rotor with an airgap
  • the permanent magnet motor
  • the motor is flood cooled by the liquid being pumped to reduce
  • the motor are not impregnated to allow the liquid to flow through slots in the
  • the motor can operate at relatively high current densities.
  • the rotor of the apparatus comprises a hollow rotor shaft formed of at least two
  • Supports are also provided on both sides of end turns of the stator windings in the
  • the axial piston pump it is limited to relatively low speeds, as compared with the
  • the dynamoelectric machine of the apparatus as an electrical generator as a back
  • diameter to length is optimized for minimum weight and hydraulic friction losses.
  • Fig. 1 is a schematic diagram of an apparatus according to the invention for
  • FIG. 2 is a cross sectional view of the apparatus of Fig. 3 taken along the
  • Fig. 3 is a cross sectional view of the apparatus of Fig. 1 taken along a
  • Figs. 4 and 5 are each an enlarged views of sections of the apparatus of Fig.
  • Fig. 6. is an enlarged cross sectional view of the apparatus of Figs. 1 and
  • Fig. 7 is a cross sectional view taken along the line VII-VII in Fig. 3;
  • Fig. 8 is an enlarged view of a slot in the stator armature with stator
  • Fig. 9 is a cross sectional view taken along the line IX-IX in Fig. 3;
  • Fig. 10 is a cross sectional view of the apparatus of Fig. 3 taken along the
  • Fig. 1 1 is a cross sectional view of the apparatus of Fig. 3 taken along the
  • Fig. 12 is a sectional line taken along the line XII-XII in Fig. 3 illustrating the
  • FIG. 1 The apparatus 1
  • centrifugal pump 71 to supply charge to an axial piston pump 2 and
  • the axial piston pump 2 is for supplying high pressure liquid
  • the gear pump 4 reduces the motor speed to drive the pumps and
  • the apparatus 1 further includes a
  • impeller 6 is located upstream of the axial piston pump 2 in the apparatus.
  • passages 7 are provided in the apparatus for circulating a portion of the liquid
  • the apparatus 1 includes no
  • the apparatus 1 is shown in
  • the motor 3 of the apparatus 1 is a brushless DC motor adapted to be
  • liquid-cooled power electronics including an inverter and a controller for
  • FIG. 3 schematically in Fig. 3, conveys liquid coolant through the control 5 from an inlet 9 to an outlet 10.
  • the control 5 is connected to the housing 1 1 of the motor 3 by
  • annular chamber 12 of the motor 3 adjacent the right end of the stator 13 of the
  • the dynamoelectric machine 3 which normally operates as a motor for
  • gear pump 4 can also be operated as a generator to provide a backup electrical
  • the axial piston pump 2 is
  • the pump 2 for operation as a hydraulic motor to drive the rotor 1 8 of machine 3
  • the motor 3 is a high speed permanent magnet motor adapted to be flood
  • the liquid coolant exits the motor through an outlet 19 in motor 3.
  • Cooling the drive 4 and control 5 before the motor 3 advantageously warms the motor 3
  • the motor housing 1 1 surrounds the stator 1 3 and rotor 1 8 of the motor.
  • stator and rotor are separated by an unusually large airgap, preferably
  • the stator 13 of the motor 3 within housing 1 1 includes an armature 21
  • stator windings extend from opposite ends of the armature as depicted in
  • a cylindrical rotor receiving opening 25 extends through the stator along
  • stator windings 23 in the slots 22, while insulated, are not impregnated
  • An insulation material 34 is located about the supports
  • the insulation material 34 has a high
  • liquid for example.
  • One suitable material for insulation 34 is known by the tradename Ryton.
  • the radially inward surface of the annular stator is formed by thin metal sleeve 49
  • the rotor 18 of the motor includes a plurality of permanent magnets 50, see
  • the magnets 50 are supported on a hollow rotor shaft 51 formed
  • the rotor extending through the rotor receiving opening 25 of the stator.
  • the outer surface of the rotor is formed by a metal sleeve 55 which is spaced from the
  • circulating the liquid coolant include the airgap 56 through which the liquid coolant
  • the metal sleeve 55 and an end plate 57 of the rotor are welded to the
  • the length to diameter ratio of the motor 3 is preferably on the order of 2: 1 for
  • the inverter of the control 5 and the motor 3 have a power rating of 80 KVA.
  • the brushless permanent magnet machine generates a
  • the diameter of the motor can also be
  • liquid coolant through the flood cooled motor 2 in the disclosed embodiment may
  • the circulating liquid also provides lubrication to the
  • actuator 59 of an airplane shown schematically in Fig. 3, is taken in an inlet 58
  • the gears 64 and 65 provide both the drive between the axial piston
  • a pressure relief valve shown
  • the pump 2 is pressure compensated and takes
  • the pressurized liquid exits the pump 2 by way of pump outlet 70 and
  • Typical operating conditions for the apparatus 1 include driving the rotor 18
  • the drive 4 is a power
  • Hydraulic liquid at the inlet 58 of the pump housing is at a relatively
  • the motor 3 can be operated at a relatively high current density such that the efficiency of the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

La présente invention concerne un appareil alimentant en fluide pressurisé un dispositif équipant aéronef. Ce fluide pressurisé est destiné à fournir sous forme hydraulique la force motrice du dispositif embarqué sur l'aéronef. L'appareil de l'invention comprend: d'une part une pompe de pompage de liquide; d'autre part un moteur à aimant permanent, à refroidissement par un flux grande vitesse lequel moteur sert à entraîner la pompe; ensuite un entraînement entre le moteur et la pompe pour permettre au moteur d'actionner la pompe; et enfin un régulateur faisant fonctionner le moteur comme un moteur à régime variable. La pompe, le moteur, l'entraînement et le régulateur sont intégrés en une seule unité. Les passages de fluides ménagés dans l'unité permettent au liquide pompé grâce à la force motrice de l'entraînement de circuler dans le corps de pompe, dans le régulateur et dans le moteur afin de les refroidir. Le moteur se compose d'un stator et d'un rotor entre lesquels un espace libre d'au moins 0,1 pouce permet de réduire les pertes imputables à la friction hydraulique se produisant à l'intérieur du moteur, sans augmenter de façon notable les dimensions du moteur.
EP97927757A 1996-06-14 1997-05-23 Appareil d'alimentation d'un dispositif en liquide pressurise, et moteur/generateur correspondant refroidi par flux grande vitesse Withdrawn EP0904491A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US663504 1991-03-01
US66350496A 1996-06-14 1996-06-14
PCT/US1997/008898 WO1997047884A2 (fr) 1996-06-14 1997-05-23 Appareil d'alimentation d'un dispositif en liquide pressurise, et moteur/generateur correspondant refroidi par flux grande vitesse

Publications (1)

Publication Number Publication Date
EP0904491A2 true EP0904491A2 (fr) 1999-03-31

Family

ID=24662096

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97927757A Withdrawn EP0904491A2 (fr) 1996-06-14 1997-05-23 Appareil d'alimentation d'un dispositif en liquide pressurise, et moteur/generateur correspondant refroidi par flux grande vitesse

Country Status (3)

Country Link
EP (1) EP0904491A2 (fr)
JP (1) JP2001516414A (fr)
WO (1) WO1997047884A2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9803062L (sv) * 1998-09-10 2000-04-04 Svein Elfstroem Drivaggregat
JP2000136772A (ja) * 1998-11-04 2000-05-16 Toyota Autom Loom Works Ltd ポンプ装置
KR20020033762A (ko) * 1999-08-31 2002-05-07 마에다 시게루 모터프레임과 그 모터프레임을 사용한 모터 및 모터펌프
DE10117373A1 (de) * 2001-04-06 2002-10-10 Mannesmann Rexroth Ag Hydraulisches Pumpenaggregat
GB0313273D0 (en) * 2003-06-09 2003-07-16 Goodrich Control Sys Ltd Aeronautical generator
FR2907283B1 (fr) * 2006-10-17 2013-04-19 Airbus France Dispositif et procede d'alimentation electrique d'au moins une machine a induction a bord d'un aeronef
DE102008034175A1 (de) * 2008-07-22 2010-01-28 Linde Material Handling Gmbh Elektrohydraulische Antriebsanordnung
NO328758B1 (no) * 2008-10-27 2010-05-03 Framo Eng As Elektrisk maskin
US8944793B2 (en) * 2012-06-05 2015-02-03 Hamilton Sundstrand Corporation Flow and pressure ripple reduction with advance dual gear and bearing face cut
DE102015219095A1 (de) * 2015-10-02 2017-04-06 Robert Bosch Gmbh Antriebseinheit und Aggregat mit Kühlung
CN111509940B (zh) * 2020-04-16 2021-06-01 重庆文理学院 一种低能耗永磁同步电机
JP2023120891A (ja) * 2022-02-18 2023-08-30 本田技研工業株式会社 回転電機ユニットの冷却システム
US12203485B1 (en) * 2022-09-02 2025-01-21 Paragon Products, Llc Diesel exhaust fluid pump system and method
CN120569565A (zh) * 2022-12-28 2025-08-29 德昌电机驱动科技加拿大有限公司 用于带内部温度测量装置的泵的分流输出端口

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2525830A1 (fr) * 1982-04-23 1983-10-28 Renault Machine electrodynamique refroidie par un liquide
JPH03289340A (ja) * 1990-03-31 1991-12-19 Toshiba Corp 電動機
US5220231A (en) * 1990-08-23 1993-06-15 Westinghouse Electric Corp. Integral motor propulsor unit for water vehicles
DE4120665A1 (de) * 1991-06-22 1992-12-24 Teves Gmbh Alfred Elektromotorisch angetriebene hydraulikpumpe
WO1993018303A1 (fr) * 1992-03-13 1993-09-16 Pneumo Abex Corporation Pompe entrainee par un moteur electrique immerge
US5220225A (en) * 1992-06-17 1993-06-15 Vickers, Incorporated Integrated electric motor driven inline hydraulic apparatus
FI92114C (fi) * 1992-07-07 1994-09-26 High Speed Tech Ltd Oy Epätahtisähkökone ja sen yhteydessä käytettävät roottori ja staattori
DE4222394C1 (de) * 1992-07-08 1993-12-09 Grundfos A S Bjerringbro Motorpumpe
JPH06280707A (ja) * 1993-03-24 1994-10-04 Aisan Ind Co Ltd 電動式燃料ポンプ
JP3077490B2 (ja) * 1993-12-28 2000-08-14 株式会社荏原製作所 ポンプ組立体
DE29609700U1 (de) * 1996-05-31 1996-08-22 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Elektromotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9747884A2 *

Also Published As

Publication number Publication date
JP2001516414A (ja) 2001-09-25
WO1997047884A3 (fr) 1998-05-14
WO1997047884A2 (fr) 1997-12-18

Similar Documents

Publication Publication Date Title
US11025114B2 (en) Rotor for an electric machine
US5189325A (en) Liquid cooling the rotor of an electrical machine
US4644207A (en) Integrated dual pump system
US11271456B2 (en) Method and assembly of an electric machine
WO1997047884A2 (fr) Appareil d'alimentation d'un dispositif en liquide pressurise, et moteur/generateur correspondant refroidi par flux grande vitesse
US20040146411A1 (en) Rotary machine cooling system
US12040668B2 (en) Stator for axial flux machine
US20030071533A1 (en) Self-starting synchronous motor and compressor using the same
WO1987003748A1 (fr) Agencement de refroidissement du rotor dans une machine dynamo-electrique
US4513218A (en) Rotor cooling in rotary electric machines
US20210265886A1 (en) Rotor assembly and method of cooling
US11211848B2 (en) Method and assembly of an electric machine
EP4052358B1 (fr) Pompe ou turbine compacte, modulaire, à moteur ou générateur modulaire intégré et écoulement de fluide coaxial
US6215212B1 (en) Shaftless rotor construction
EP4220896A1 (fr) Ensemble rotor et procédé pour une machine électrique
RU2079723C1 (ru) Герметичный насос с электроприводом
CN114765392A (zh) 具有容纳带的电机
CN107949978B (zh) 具有优化冷却的旋转电机
EP4640317A1 (fr) Entraînement de broyeur sans engrenage
JP2025106984A (ja) 回転電機
JP2025144010A (ja) 電動オイルポンプ
JP2024148493A (ja) 回転電機の回転子、回転電機

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: 19981228

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 20000912

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 20010118