$\require{mediawiki-texvc}$
  • 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색연산자 기능 검색시 예
() 우선순위가 가장 높은 연산자 예1) (나노 (기계 | machine))
공백 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 예1) (나노 기계)
예2) 나노 장영실
| 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 예1) (줄기세포 | 면역)
예2) 줄기세포 | 장영실
! NOT 이후에 있는 검색어가 포함된 문서는 제외 예1) (황금 !백금)
예2) !image
* 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 예) semi*
"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

Variable coupling of turbofan engine spools via open differential gear set or simple planetary gear set for improved power extraction and engine operability, with torque coupling for added flexibility

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02C-007/32    F02C-007/36   
미국특허분류(USC) 060/204; 060/226.1; 060/039.163; 060/802; 074/DIG.04
출원번호 UP-0567490 (2006-12-06)
등록번호 US-7788898 (2010-09-27)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    McNees Wallace & Nurick, LLC
인용정보 피인용 횟수 : 9  인용 특허 : 17
초록

A system for transferring mechanical torque variably between a plurality of rotating machines in a turbofan engine. Two devices are used, where the first device relies upon magnetic properties of a planetary magnetic gearbox to couple the magnetic machines. The second device is used to variably control the torque transfer between the magnetic machines. The system couples rotating shafts rotating at differing speeds within a turbofan engine for controllably transferring power. To transfer power in the system, a fixed gear ratio is obtained by coupling the...

대표
청구항

The invention claimed is: 1. A system for variable coupling of a high pressure spool and a low pressure spools to power a generator in a turbofan engine, the system comprising: a differential gear portion having a first input portion, a second input portion, and an output shaft; an electromagnetic variable transmission having an independently rotatable inner rotor portion and an independently rotatable outer rotor portion, the inner rotor portion coupled with one of the high pressure spool and the low pressure spool, and the outer portion connected to t...

이 특허에 인용된 특허 (17)

  1. Artinian Vatche ; Brim Terry ; Matulich Dan ; Murry Roger. Aircraft air conditioning system including electric generator for providing AC power having limited frequency range. USP2000096124646.
  2. Coffinberry George A. (West Chester OH). Aircraft engine electrically powered boundary layer bleed system. USP1992055114103.
  3. Dooley, Kevin Allan; Savage, William J. K.. Apparatus and method for controlling engine windmilling. USP2009117621117.
  4. Rago, Giuseppe; Harvey, Richard. Differential geared turbine engine with torque modulation capability. USP2005056895741.
  5. Nims Robert A.. Dual turbogenerator auxiliary power system. USP1998095799484.
  6. Glahn, J. Axel; Sahm, Michael K.. Engine integrated auxiliary power unit. USP2005116968701.
  7. Newton Arnold C.,GB2 ; Sharp John,GB2. Gas turbine engine system. USP1999025867979.
  8. Wojciechowski, Paul M.. High bypass multi-fan engine. USP2004096792745.
  9. Adamson Arthur P. (Cincinnati OH) Butler Lawrence (Cincinnati OH). High bypass turbofan engine having a partially geared fan drive turbine. USP1990044916894.
  10. Mowill Rolf J. (Rugdeveien 7 0386 Oslo ; 3 NOX). High efficiency, twin spool, radial-high pressure, gas turbine engine. USP1992015081832.
  11. Farrell William M. (Cincinnati OH) Leonard Gary L. (Cincinnati OH). Intercooled gas turbine engine. USP1996095553448.
  12. Kawamura Osamu (Matsudo JPX). Limited slip differential. USP1991075030185.
  13. Eick, Chris D.; Gaines, Louie T.; Laidlaw, Mitchell J.; Benson, Dwayne M.; Portolese, Larry A.; Flaherty, Brian L.; Pearson, Wayne T.. More electric aircraft power transfer systems and methods. USP2009067552582.
  14. Gaines,Louie T.; Auer,Peter J.; Lane,Glenn H.; Wissinger,James A.. More electric aircraft starter-generator multi-speed transmission system. USP2009017481062.
  15. Mackay, Robin. Multi pressure mode gas turbine. USP2003036526757.
  16. Bornhoft, Melody; Jarrell, David. Multi-spool by-pass turbofan engine. USP2003116647708.
  17. Goudreau Roger (Montreal CAX) Jobin Jean-Jacques (Montreal CAX). Planetary gear system for a gas turbine engine. USP1989084856377.