[특허]Aircraft engine starting with synchronous ac generator

Aircraft engine starting with synchronous ac generator 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02N-011/04 H02K-023/60
출원번호	US-0382790 (1982-05-27)
발명자 / 주소	Cronin Michael J. (Sherman Oaks CA)
출원인 / 주소	Lockheed Corporation (Burbank CA 02)
인용정보	피인용 횟수 : 37 인용 특허 : 0

초록 ▼

The invention relates to a starter-generator machine (10) for starting turbine type aircraft engines. The machine combines an induction motor with a synchronous samarium cobalt generator. In the machine, a rotor-shaped stator (22) is fixed and positioned inside a squirrel-cage induction rotor (18) which has an array of samarium-cobalt magnets (24) attached on the outer diameter thereof. The compound dual machine operates as a starter by using the induction rotor to accelerate the permanent magnet rotor, and thus the aircraft engine via a drive pinion (34), up to some low synchronous speed, when ac power is applied to the outside stator (16) to lock in the permanent-magnet rotor (24) synchronously with the rotating field created in the stator (16) of the synchronous generator. As the speed of the rotor (24) is then increased, the engine speed is also increased via the drive pinion (34). In a second embodiment, a cartridge type induction-motor (70) is utilized to initially start an aircraft engine. The motor (70) includes a gear reduction (74) and a disconnect clutch (76) and drives the engine through a splined pinion (78) which in turn drives an engine connected spline (98). When the speed of the machine is such that the synchronous operation of an outside permanent magnet rotor (96) commences, the clutch (76) is utilized to disconnect the induction motor cartridge (70), leaving the rotor (96) to drive the drive spline (98) via internal splines (94).

대표청구항 ▼

A combination induction motor/synchronous generator machine for starting engines and providing electric power comprising: a cartridge-type induction motor arranged to drive said engine via an output shaft having a splined pinion; said induction motor having a squirrel-cage rotor rotatably secured within a fixed polyphase stator; a permanent magnet starter-generator arranged to be driven by said induction motor, said starter generator also being arranged to drive and be driven by said engine; and a cup-shaped assembly including a first portion having internal and external splines and a second portion having a drive spline for driving and being driven by said engines, said output shaft splined pinion being arranged to engage with said internal splines and said permanent-magnet starter generator including an internal spline portion arranged to engage with said external splines.

이 특허를 인용한 특허 (37)

Rogala,Richard L., AC generator and method.
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Huang, Hao; Zywot, Jan, Accessory gearbox with a starter/generator.
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Huang, Hao; Zywot, Jan, Accessory gearbox with a starter/generator.
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Hoppe,Richard J.; Thomson,Scott M.; Turner,Douglas J., Adjustable variable frequency starter/generator system.
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Kandil, Magdy A.; Magnus, Keith R.; Baker, Don, Aircraft starter generator for variable frequency (vf) electrical system.
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Giordano Serge,FRX, Alternating current-starting device for a helicopter turbine engine unit.
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Clemens, Stanford; Hassenzahl, Kelby, Apparatus and method for locking two shafts.
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Klode, Harald, Brushless motor with reduced rotor inertia.
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Xu,Mingzhou; Benson,Dwayne M., Brushless starter-generator with independently controllable exciter field.
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Dooley, Kevin Allan; Cheng, Audrey; Makuszewski, Jerzy, Combination low spool generator and ram air turbine generator.
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King Robert D. (Schenectady NY), Combined electric starter and alternator system using a permanent magnet synchronous machine.
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Cook, Roger, Compressor and driving motor assembly.
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Ganev,Evgeni; Fizer,Leroy A., DC bus short circuit compliant power generation systems using induction machine.
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Anderson Norman Helmut,CAX, DC electric starter-generator.
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Becquerelle, Samuel Raymond Germain; Galivel, Jean Pierre, Distributed architecture for a gas-turbine starter/generator.
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Bansal Madan L. (Rockford IL) Vaidya Jayant G. (Rockford IL), Dual output synchronous-induction starting/generating system.
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Kitamura Yutaka (Hyogo JPX), Engine starting and charging device.
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Wahl Robert E. ; Stokes Richard F., Gas turbine starter assist torque control system.
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John Dhyanchand ; Donald G. Fair ; Chai-Nam Ng, Induction motor/generator system.
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Reynolds Richard W. (Rockford IL), Integrated drive generator system with direct motor drive prime mover starting.
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Kandil, Magdy A.; Vanek, Laurence D.; Abbot, James L., Integrated starter generator drive having selective torque converter and constant speed transmission for aircraft having a constant frequency electrical system.
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Raad Bernard A. (Rockford IL) Johnsen Tyrone A. (Rockford IL), Integrated starting system.
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Zaccaria, Patrick; Chareyre, Philippe; Fernandez-Lopez, Pio; Casado-Montero, Carlos; Ansari, Amid; Gillingham, Thomas Earl; Hon, Robert Charles; Kiracofe, Daniel Roy; Kirchmayer, Kenneth; McCambridge, Michael Scott; Steen, Tod Robert, Method and system for starting up an aircraft turbomachine.
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Zaccaria, Patrick; Chareyre, Philippe; Fernandez-Lopez, Pio; Casado-Montero, Carlos, Method and system for starting up an aircraft turbomachine by real-time regulation of air flow.
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Boyd ; Jr. John H., Method of fabricating a rotor for an electric motor.
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John Michael Sedlak ; David Michael Prough, Methods and apparatus for electrical connection inspection.
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Ross, Steven A.; Agin, Thomas E., Methods and systems for mitigating distortion of gas turbine shaft.
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Lofgren Karl M. J. (Long Beach CA) Shearer Gerald W. (Orange CA) Ouyang Kenneth W. (Huntington Beach CA), Phase-locked loop delay line.
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Shawn H. Swales ; Gurinder S. Kahlon ; James J. Klocinski, Regenerative deceleration for a hybrid drive system.
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Shramo Daniel J. (800 Brick Mill Run ; Apt. 419 Westlake OH 44145), Slotless, brushless, large air-gap electric motor.
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Zhang, Guo Ji; Gan, Jin Yun; Liu, Li Sheng; Li, Yue, Starter motor.
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Rozman Gregory I. (Rockford IL) Markunas Albert L. (Roscoe IL) Nuechterlein Paul E. (Rockford IL), Starter/generator system with variable-frequency exciter control.
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Gieras, Jacek F., Starting current reduction in induction motors.
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Raad Bernard A. (Rockford IL) Dolan Clarence F. (Rockford IL), Starting system and method using a hybrid permanent magnet/induction machine.
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Manneville, Alexis; Hirtz, Norbert; Theard, Valentin, System and method for spinning up a rotary element of a mechanical device, particularly a turbomachine.
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Copeland, Andrew D., Turbine engine.
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Kazumasa Ide JP; Miyoshi Takahashi JP; Mamoru Nemoto JP; Seiji Takahashi JP, Variable-speed electromechanical energy converter.
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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

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Aircraft engine starting with synchronous ac generator 원문보기

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