WO1997047884A2 - Apparatus for providing pressurized liquid to a device, high speed flood cooled motor/generator therefor - Google Patents
Apparatus for providing pressurized liquid to a device, high speed flood cooled motor/generator therefor Download PDFInfo
- Publication number
- WO1997047884A2 WO1997047884A2 PCT/US1997/008898 US9708898W WO9747884A2 WO 1997047884 A2 WO1997047884 A2 WO 1997047884A2 US 9708898 W US9708898 W US 9708898W WO 9747884 A2 WO9747884 A2 WO 9747884A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- pump
- rotor
- liquid
- machine
- Prior art date
Links
Classifications
-
- 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
-
- 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
- F04B23/14—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
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50161998A JP2001516414A (en) | 1996-06-14 | 1997-05-23 | Apparatus for supplying pressurized liquid to equipment, high-speed water-cooled motor / generator therefor |
EP97927757A EP0904491A2 (en) | 1996-06-14 | 1997-05-23 | Apparatus for providing pressurized liquid to a device, high speed flood cooled motor/generator therefor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66350496A | 1996-06-14 | 1996-06-14 | |
US08/663,504 | 1996-06-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1997047884A2 true WO1997047884A2 (en) | 1997-12-18 |
WO1997047884A3 WO1997047884A3 (en) | 1998-05-14 |
Family
ID=24662096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/008898 WO1997047884A2 (en) | 1996-06-14 | 1997-05-23 | Apparatus for providing pressurized liquid to a device, high speed flood cooled motor/generator therefor |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0904491A2 (en) |
JP (1) | JP2001516414A (en) |
WO (1) | WO1997047884A2 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000015457A1 (en) * | 1998-09-10 | 2000-03-23 | Elfstroem Svein | Driving means |
NL1013472C2 (en) * | 1998-11-04 | 2001-03-26 | Toyoda Automatic Loom Works | Motor-driven pumping device. |
EP1211784A1 (en) * | 1999-08-31 | 2002-06-05 | Ebara Corporation | Motor frame and motor using the motor frame and motor pump |
WO2002081913A2 (en) * | 2001-04-06 | 2002-10-17 | Bosch Rexroth Ag | Hydraulic pump unit |
EP1486675A1 (en) * | 2003-06-09 | 2004-12-15 | Goodrich Control Systems Ltd | Aeronautical generator |
FR2934431A1 (en) * | 2008-07-22 | 2010-01-29 | Linde Material Handling Gmbh | ELECTROHYDRAULIC DRIVE DEVICE |
WO2010050824A1 (en) * | 2008-10-27 | 2010-05-06 | Framo Engineering As | Electric machine |
CN103486024A (en) * | 2012-06-05 | 2014-01-01 | 哈米尔顿森德斯特兰德公司 | Flow and pressure ripple reduction with advance dual gear and bearing face cut |
WO2017055134A1 (en) * | 2015-10-02 | 2017-04-06 | Robert Bosch Gmbh | Drive unit and aggregate with cooling |
RU2802119C1 (en) * | 2022-12-28 | 2023-08-22 | Публичное акционерное общество "Объединенная авиастроительная корпорация" (ПАО "ОАК") | Autonomous aircraft hydraulic pump station |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2907283B1 (en) * | 2006-10-17 | 2013-04-19 | Airbus France | DEVICE AND METHOD FOR ELECTRICALLY SUPPLYING AT LEAST ONE INDUCTION MACHINE ON BOARD AN AIRCRAFT |
CN111509940B (en) * | 2020-04-16 | 2021-06-01 | 重庆文理学院 | Low-energy-consumption permanent magnet synchronous motor |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0093041A1 (en) * | 1982-04-23 | 1983-11-02 | Regie Nationale Des Usines Renault | Electrodynamic synchronous machine with permanent magnets and liquid cooling |
DE4120665A1 (en) * | 1991-06-22 | 1992-12-24 | Teves Gmbh Alfred | ELECTRICALLY DRIVEN HYDRAULIC PUMP |
WO1993018303A1 (en) * | 1992-03-13 | 1993-09-16 | Pneumo Abex Corporation | Wet electric motor driven pump |
EP0566788A1 (en) * | 1990-08-23 | 1993-10-27 | Westinghouse Electric Corporation | Integral motor propulsion unit for water vehicles |
DE4222394C1 (en) * | 1992-07-08 | 1993-12-09 | Grundfos A S Bjerringbro | Electric pump unit with cooled frequency regulator - has power stage of frequency regulator mounted on cooling wall between spiral pump housing and electric motor |
EP0578390A1 (en) * | 1992-06-17 | 1994-01-12 | Vickers Incorporated | An integrated electric motor-driven inline hydraulic apparatus |
EP0583994A1 (en) * | 1992-07-07 | 1994-02-23 | High Speed Tech Oy Ltd. | Asynchronous electric machine and rotor and stator for use in association therewith |
EP0661793A1 (en) * | 1993-12-28 | 1995-07-05 | Ebara Corporation | Motor pump assembly |
US5454697A (en) * | 1993-03-24 | 1995-10-03 | Aisan Kogyo Kabushiki Kaisha | Electrically operated pump assembly with an externally installed control circuit |
DE29609700U1 (en) * | 1996-05-31 | 1996-08-22 | Heilmeier & Weinlein | Electric motor |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03289340A (en) * | 1990-03-31 | 1991-12-19 | Toshiba Corp | Motor |
-
1997
- 1997-05-23 WO PCT/US1997/008898 patent/WO1997047884A2/en not_active Application Discontinuation
- 1997-05-23 JP JP50161998A patent/JP2001516414A/en active Pending
- 1997-05-23 EP EP97927757A patent/EP0904491A2/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0093041A1 (en) * | 1982-04-23 | 1983-11-02 | Regie Nationale Des Usines Renault | Electrodynamic synchronous machine with permanent magnets and liquid cooling |
EP0566788A1 (en) * | 1990-08-23 | 1993-10-27 | Westinghouse Electric Corporation | Integral motor propulsion unit for water vehicles |
DE4120665A1 (en) * | 1991-06-22 | 1992-12-24 | Teves Gmbh Alfred | ELECTRICALLY DRIVEN HYDRAULIC PUMP |
WO1993018303A1 (en) * | 1992-03-13 | 1993-09-16 | Pneumo Abex Corporation | Wet electric motor driven pump |
EP0578390A1 (en) * | 1992-06-17 | 1994-01-12 | Vickers Incorporated | An integrated electric motor-driven inline hydraulic apparatus |
EP0583994A1 (en) * | 1992-07-07 | 1994-02-23 | High Speed Tech Oy Ltd. | Asynchronous electric machine and rotor and stator for use in association therewith |
DE4222394C1 (en) * | 1992-07-08 | 1993-12-09 | Grundfos A S Bjerringbro | Electric pump unit with cooled frequency regulator - has power stage of frequency regulator mounted on cooling wall between spiral pump housing and electric motor |
US5454697A (en) * | 1993-03-24 | 1995-10-03 | Aisan Kogyo Kabushiki Kaisha | Electrically operated pump assembly with an externally installed control circuit |
EP0661793A1 (en) * | 1993-12-28 | 1995-07-05 | Ebara Corporation | Motor pump assembly |
DE29609700U1 (en) * | 1996-05-31 | 1996-08-22 | Heilmeier & Weinlein | Electric motor |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 016, no. 120 (E-1182), 26 March 1992 & JP 03 289340 A (TOSHIBA CORP), 19 December 1991, * |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000015457A1 (en) * | 1998-09-10 | 2000-03-23 | Elfstroem Svein | Driving means |
NL1013472C2 (en) * | 1998-11-04 | 2001-03-26 | Toyoda Automatic Loom Works | Motor-driven pumping device. |
EP1211784A1 (en) * | 1999-08-31 | 2002-06-05 | Ebara Corporation | Motor frame and motor using the motor frame and motor pump |
EP1211784A4 (en) * | 1999-08-31 | 2003-05-28 | Ebara Corp | Motor frame and motor using the motor frame and motor pump |
WO2002081913A2 (en) * | 2001-04-06 | 2002-10-17 | Bosch Rexroth Ag | Hydraulic pump unit |
WO2002081913A3 (en) * | 2001-04-06 | 2004-09-30 | Bosch Rexroth Ag | Hydraulic pump unit |
EP1486675A1 (en) * | 2003-06-09 | 2004-12-15 | Goodrich Control Systems Ltd | Aeronautical generator |
FR2934431A1 (en) * | 2008-07-22 | 2010-01-29 | Linde Material Handling Gmbh | ELECTROHYDRAULIC DRIVE DEVICE |
WO2010050824A1 (en) * | 2008-10-27 | 2010-05-06 | Framo Engineering As | Electric machine |
CN103486024A (en) * | 2012-06-05 | 2014-01-01 | 哈米尔顿森德斯特兰德公司 | Flow and pressure ripple reduction with advance dual gear and bearing face cut |
CN103486024B (en) * | 2012-06-05 | 2017-04-12 | 哈米尔顿森德斯特兰德公司 | Main gear pump, servo gear pump and aircraft using main gear pump and servo gear pump |
WO2017055134A1 (en) * | 2015-10-02 | 2017-04-06 | Robert Bosch Gmbh | Drive unit and aggregate with cooling |
CN108141110A (en) * | 2015-10-02 | 2018-06-08 | 罗伯特·博世有限公司 | Driving unit and the unit with cooler |
CN108141110B (en) * | 2015-10-02 | 2022-04-19 | 罗伯特·博世有限公司 | Drive unit and unit with cooler |
RU2802119C1 (en) * | 2022-12-28 | 2023-08-22 | Публичное акционерное общество "Объединенная авиастроительная корпорация" (ПАО "ОАК") | Autonomous aircraft hydraulic pump station |
Also Published As
Publication number | Publication date |
---|---|
JP2001516414A (en) | 2001-09-25 |
EP0904491A2 (en) | 1999-03-31 |
WO1997047884A3 (en) | 1998-05-14 |
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