[특허]Tandem electric machine arrangement

Tandem electric machine arrangement 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02K-007/20
출원번호	US-0895784 (2013-05-16)
등록번호	US-8710708 (2014-04-29)
발명자 / 주소	Dooley, Kevin Allan Brand, Joseph
출원인 / 주소	Pratt & Whitney Canada Corp.
대리인 / 주소	Norton Rose Fulbright Canada LLP
인용정보	피인용 횟수 : 0 인용 특허 : 32

초록 ▼

The tandem electric machine arrangement comprises an outside rotor having two axially spaced-apart sets of circumferentially-disposed permanent magnets. It also comprises an inside stator having at least two electrically-independent windings, the at least two windings axially spaced apart from one another and disposed relative to the magnet sets to thereby be magnet coupled to a respective one of the sets of permanent magnets during rotation of the rotor. One of the rotor and the stator is provided in two separate pieces, each piece supported from opposite axial sides of the electric machine relative to one another. The other of the rotor and the stator is supported from substantially centrally of the two pieces.

대표청구항 ▼

1. A tandem arrangement for an electric machine comprising: an outside rotor having two axially spaced-apart sets of circumferentially-disposed permanent magnets;an inside stator having at least two electrically-independent windings, the at least two windings axially spaced apart from one another and disposed relative to the magnet sets to thereby be magnetically coupled to a respective one of the sets of permanent magnets during rotation of the rotor;wherein the rotor is provided in two separate pieces, each piece being supported from opposite axial sides of the electric machine relative to one another and both of the rotor pieces being supported by and in a torque-transmitting engagement with a common shaft; andwherein the stator is supported from substantially centrally of the two rotor pieces. 2. The electric machine arrangement as defined in claim 1, wherein each rotor piece comprises an overhang encircling a corresponding side of the stator and including a respective one of the sets of permanent magnets, the sets of permanent magnets and the corresponding windings being separated by a radial air gap. 3. The electric machine arrangement as defined in claim 1, wherein the shaft is a main shaft of a gas turbine engine, the electric machine being coaxially mounted on the main shaft. 4. A tandem electric machine comprising a central support and two axially spaced-apart end supports, the central support disposed centrally of the two end supports, the electric machine having two rotor-stator pairs, the pairs axially spaced apart from one another between the two end supports, each rotor-stator pair comprising a rotatable rotor surrounding a stator, the two rotors coaxial with one another and mounted to a common axially-extending shaft, the two stators each having a winding set, the winding sets of the two stators being electrically independent of one another, the rotor-stator pairs mounted such that the two stators are mounted together axially end-to-end to one another and supported by the central support, the two rotors being axially spaced-apart from one another and mounted to a respective one of the end supports. 5. The tandem electric machine as defined in claim 4, wherein each stator has a section axially extending with reference to the central support, each section including a respective one of the winding sets mounted thereon. 6. The tandem electric machine as defined in claim 5, wherein each rotor comprises an overhang encircling a respective one of the winding sets and includes a set of circumferentially-disposed permanent magnets, each corresponding magnet set and winding set being separated by a radial air gap. 7. The tandem electric machine as defined in claim 6, wherein each end support includes a sleeve member connected to the shaft, the rotors being only connected together by the shaft. 8. The tandem electric machine as defined in claim 7, wherein each end support includes a flange interconnecting the sleeve member and the corresponding rotor overhang. 9. The tandem electric machine as defined in claim 5, wherein the shaft is a main shaft of a gas turbine engine, the rotors being coaxially mounted around the main shaft.

이 특허에 인용된 특허 (32)

Tawse Ian S. (Weston CAX), Axial air gap alternators/generators of modular construction.
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Lynch Leo A. (Belvidere IL) Krinickas ; Jr. Alexander (Rockford IL) Parker Barry J. (Rockford IL) Shah Mahesh (Rockford IL) Vaidya Jayant (Rockford IL) Huss John B. (Rockford IL), Axial gap dual permanent magnet generator.
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Sugiura Tsuneo (Iida JPX), Brushless generator with magnet and claw-tooth dual rotor.
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Kusase,Shin; Mukai,Takuzou, Brushless rotary electric machine having tandem rotary cores.
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Takaba Yosuke (Iida JPX), Coil winding construction for an electric motor.
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Razzell, Anthony G.; Cullen, John J A, Compact electrical machine.
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Chang,Shun chen; Lin,Kuo cheng; Huang,Wen shi, Coupling structure for tandem motor.
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Nahirney Peter M. (10706 Meighen Crescent ; North Battleford Saskatchewan CAX S9A 3L1), Direct current motor utilizing back electromotive force.
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Lutz Dieter (Schweinfurt DEX) Jakubowski Karl-Heinz (Castrop-Rauxel DEX) Berger Gunter (Castrop-Rauxel DEX) Damm Horst (Sprockhovel DEX), Drive unit.
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Secher Bernard (Toulouse FRX) Simon Roger (Arnouville les Gonesses FRX), Dual rotor magnet machine.
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Satake Toshihiko (Higashihiroshima JPX) Onogi Yukio (Hiroshima JPX), Dual-stator induction synchronous motor.
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Faltin, Henry, Efficient motor with dual cylindrical magnets and rotor arm coils.
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Smith James Andrew Timothy,GB3, Electrical power generators.
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Fanning Alan W. (San Jose CA) Dahl Leslie R. (Livermore CA), Electromagnetic pump stator coil.
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Trago Bradley A. ; Lordo Robert E., Fault tolerant electric machine.
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Langley Lawrence W. (Christiansburg VA) Bross Roger B. (Radford VA), Motor with redundant windings.
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Tawse Ian S. (Weston CAX), Multi-voltage and multi-frequency alternator/generator of modular construction.
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Arora Ram S. (Farmington MI), Multiple magnetic paths machine.
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Rubertus C. Scott ; Weimer Joseph A., Multiple winding channel, magnetic coupling-alterable reluctance electrical machines and their fault tolerant control.
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Shah Mahesh J., Permanent magnet generator with auxiliary winding.
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Hill Wolfgang,DEX, Permanently excited transverse flux machine.
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Vaidya, Jayant G., Redundant multiple channel electric motors and generators.
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Leiber, Heinz; Leiber, Thomas, Rotating field machine with bell-shaped rotor.
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Razzell, Anthony G; Care, Ian C D; Cullen, John J A, Shaft bearings.
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Scott A. Millsap ; Chad David Bauer ; Michael James Cole, Steer-by-wire handwheel actuator incorporating mechanism for variable end-of-travel.
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Michael James Cole, Steer-by-wire rotary actuator.
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Masberg Ullrich,DEX ; Pels Thomas,DEX ; Zeyen Klaus-Peter,DEX ; Grundl Andreas,DEX ; Hoffmann Bernhard,DEX, System for actively reducing rotational nonuniformity of a shaft, in particular, the drive shaft of an internal combustion engine, and method of operating the system.
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Sandel Robert J. (Canton MI) Gajewski Arthur J. (Canton MI) Caldwell James E. (Allen Park MI), Tandem field alternator having an improved coil and slip ring connection and method of making the same.
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Hotta Toshiaki (Chiryu JPX) Banzai Keiichiro (Toyota JPX), Tandem type alternator.
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Huss John B. (Rockford IL), Torque driven dual PMG actuator.
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Roesel ; Jr. John F. ; Barber Ronnie J., Versatile AC dynamo-electric machine.
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Glennon Timothy F. (Rockford IL), Voltage regulated permanent magnet generator system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Tandem electric machine arrangement 원문보기

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