[특허]Rotor laminae assembly for a cast rotor dynamoelectric machine

Rotor laminae assembly for a cast rotor dynamoelectric machine 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02K-009/00
출원번호	US-0824104 (1977-08-12)
발명자 / 주소	Schweder Walter M. (Schenectady NY) Lenz Henry G. (Scotia NY)
출원인 / 주소	General Electric Co. (Schenectady NY 02)
인용정보	피인용 횟수 : 36 인용 특허 : 0

초록 ▼

A rotor assembly for a dynamoelectric machine is characterized by incorporating three different sets of rotor laminations each of which is provided with punched apertures that respectively form conductor slots arcuately spaced around the periphery of the laminae, a plurality of axial coolant passageways extending through the assembly near its inner diameter, a plurality of arcuately spaced radial ducts at axial intervals along the rotor, and vent passageways connecting the radial ducts to the axial coolant passageways to enable cooling air to be forced through the coolant passageways and the vent apertures into the radial ducts and thence into the air gap of the machine when the rotor is assembled in operating position. The rotor of the invention is particularly characterized by incorporating radial cooling ducts that extend between each adjacent pair of conductor slots from the periphery of the rotor to points substantially below the bottoms of the conductor slots in the rotor laminae. All of the laminae are stacked in aligned position and compressed to form tight seals therebetween that prevent molten metal from flowing out of the conductor slots into the interstices between the respective laminations of the assembly during a rotor casting operation.

대표청구항 ▼

A rotor laminae assembly for a dynamoelectric machine having cast axial conductors and radial ventilating ducts extending between said conductors at axially spaced intervals, characterized by the improvement comprising: a. a plurality of substantially flat, annular main rotor laminae each formed with apertures therein to define, respectively, a plurality of conductor slots arcuately spaced adjacent to the periphery of the laminae and a plurality of coolant passageways arcuately spaced between the inner ends of said conductor slots and the inner diameter of the laminae, b. a plurality of substantially flat, annular vent laminae each provided with apertures that define, respectively, a plurality of conductor slots arcuately spaced adjacent to the periphery of the laminae and a plurality of vent apertures arcuately spcaced between the inner ends of said conductor slots and the inner diameter of the laminae, each of said vent apertures being formed with a radial dimension substantially greater than the maximum radial dimension of the coolant passageway formed in said main laminae, c. a plurality of substantially flat, annular duct laminae each provided with apertures that define, respectively, a plurality of conductor slots arcuately spaced adjacent to the periphery of the laminae, a plurality of coolant passageways arcuately spaced between the inner ends of the conductor slots and the inner diameter of the laminae, and a plurality of coolant duct slots extending from the periphery of the laminae to a point between the inner ends of the conductor slots and the outer extent of the coolant passageways, said point being radially positioned between said outer extent of the coolant passageways and the outer extent of the vent apertures in adjacent vent laminae thereby to place the inner end of each duct slot in overlapping relationship with an adjacent vent aperture and to position each vent aperture in overlapping relationship with a coolant passageway in adjacent main rotor laminae, d. said plurality of main rotor laminae, vent laminae and duct laminae being aligned with each other to place the conductor slots in alignment, and a plurality of cast electrical conductors disposed, respectively, in each of said conductor slots and joined together at the opposite ends thereof, respectively, by a pair of annuli cast with said conductors, said cast conductors being effective to hold the rotor laminae assembly together.

이 특허를 인용한 특허 (36)

Sirois, Robert David, Apparatus and method for cooling rotor and stator motor cores.
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Lang, Nicholas G., Apparatus, systems, and methods for increasing airflow through induction motors.
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Booth, James Kenneth; Eriksen, Uffe; Gundtoft, Soeren; Nielsen, Jacob Blach, Arrangement for cooling of an electrical machine.
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Gandhi Deepakkumar J. (Fort Wayne IN) Neumann Thomas W. (Fort Wayne IN), Closed slot rotor construction.
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Johnsen, Tyrone A., Cooling of a rotor for a rotary electric machine.
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Kazmierczak Edmund E., Direct gas cooled rotor endwinding ventilation schemes for rotating machines with concentric coil rotors.
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Bradfield, Michael D., Electric machine cooling system and method.
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Bradfield, Michael D., Electric machine cooling system and method.
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James S. Mokri, Electric motor fan seal ring.
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Ruffing, Stephen M.; Schmidt, Ronald W.; Friedman, Kenneth R., Electric motor having fluid circulation system and methods for cooling an electric motor.
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Elender, Gunther; Memminger, Oliver; Schönbauer, Norbert; Senninger, Karl, Electrical motor having radially offset cooling stream and cooling method.
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Ammar Brahim (Villecerf FRX), Electrical synchronous machine with smooth poles and with a constant air gap.
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Noack, Felix; Spera, Zdenek; Stuckmann, Christoph; Weiss, Sebastian, Electrically rotating machine.
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Pal, Debabrata; Severson, Mark Hamilton; Rasmussen, Roy D., Enhanced motor cooling system.
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Casazza, Matteo; Folie, Georg; Gelmini, Emmanuele, Fluid-cooled wind turbine.
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Christian Lee Vandervort ; Todd Garrett Wetzel ; Emil Donald Jarczynski ; Samir Armando Salamah ; Wayne Nigel Owen Turnbull, Generator endwinding cooling enhancement.
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Bradfield, Michael D., Gravity fed oil cooling for an electric machine.
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Tsutsumi, Takahiro; Yabe, Koji, Induction motor, compressor and refrigerating cycle apparatus.
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Pangburn William W. (Schenectady NY), Laminated dynamoelectric machine rotor having cast conductors and radial coolant ducts and method of making same.
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Lenz Henry G. (Scotia NY), Laminated rotor for a dynamoelectric machine with coolant passageways therein.
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Bisson Donald K. (Fort Wayne IN) Nardin Steven A. (Fort Wayne IN), Method and apparatus for measuring core loss of a laminated ferromagnetic structure.
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Lenz Henry G. (Scotia NY), Method of making a laminated rotor for a dynamoelectric machine.
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Pangburn William W. (Schenectady NY), Method of making dynamoelectric machine rotor having cast conductors and radial coolant ducts.
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Sishtla, Vishnu M., Motor rotor and air gap cooling.
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Lee, Jong In; Moon, Sung Hyun; Lee, Kwang Soo; Kim, Ok Jin; Kim, Rae Eun, Open-type induction motor.
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Salamah, Samir Armando; Wetzel, Todd Garrett; Vandervort, Christian Lee; Jarczynski, Emil Donald; Turnbull, Wayne Nigel Owen, Re-entrant spaceblock configuration for enhancing cavity flow in rotor endwinding of electric power generator.
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Chamberlin, Brad; Kubes, Larry; Wan, Koon Hoong, Rotating directional coolant spray for electric machine.
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Kowalski, Waldemar; Lehmann, Christoph, Rotor for a turbo generator, and turbo generator comprising a rotor.
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Bradfield, Michael D., Rotor lamination cooling system and method.
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Okochi, Toshinori, Rotor of rotary electric machine.
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Okochi, Toshinori, Rotor of rotary electric machine.
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Jansen, Patrick Lee, Sensorless control induction motor rotor slot shapes and fabrication methods.
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Todd Garrett Wetzel ; Emil Donald Jarczynski ; Christian Lee Vandervort ; Samir Armando Salamah ; Wayne Nigel Owen Turnbull, Spaceblock scoops for enhanced rotor cavity heat transfer.
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Kliman Gerald Burt ; Barton Richard Kenneth, Staggered cooling holes for enhanced heat transfer in air-cooled motors.
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DeBlock, Mark John; Wilson, Blake Weldon; Mancuso, Thomas; Kanakamedala, Lakshminarayana, Ventilated rotor and stator for dynamoelectric machine.
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Salamah, Samir Armando; Wetzel, Todd Garrett; Vandervort, Christian Lee; Jarczynski, Emil Donald; Turnbull, Wayne Nigel Owen, Wake reduction structure for enhancing cavity flow in generator rotor endwindings.
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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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Rotor laminae assembly for a cast rotor dynamoelectric machine 원문보기

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Rotor laminae assembly for a cast rotor dynamoelectric machine 원문보기

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이 특허를 인용한 특허 (36)

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