$\require{mediawiki-texvc}$
  • 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

Control for bleed modulation during engine deceleration

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02C-009/18   
미국특허분류(USC) 60/3902 ; 60/3929
출원번호 US-0939214 (1986-12-08)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 14  인용 특허 : 0
초록

In a twin spool gas turbine engine the electronic engine control modulates the open area of the compressor bleed valves during engine transients as a function of a ratio of the actual rate of change of the compressor speed to a maximum scheduled rate of change such that the bleeds are opened more as the actual rate of change approaches the scheduled maximum rate. This continuous modulation provides smooth thrust transition from one steady state condition to another while maintaining a proper safety margin relative to the engine surge line.

대표
청구항

In a gas turbine engine having a compressor, and a compressor bleed valve, means for controlling said valve comprising: means for generating a first signal indicative of corrected compressor speed; means for producing a second signal indicative of the ratio of the actual rate of change of corrected compressor speed to a maximum scheduled rate of change of corrected compressor speed; function generator means responsive to said first and second signals to generate, during engine transient operation, a transient bleed position signal having a value which is...

이 특허를 인용한 특허 피인용횟수: 14

  1. Davison Samuel H. (Loveland OH) Kast Kevin H. (Cincinnati OH) Clark Aidan W. (Blue Ash OH). Active clearance control. USP1990054928240.
  2. Schafer Bradley C. (Manchester CT). Bleed modulation for transient engine operation. USP1991024991389.
  3. Hoang, Tuyen Trong. Compressor surge prevention digital system. USP2015129200572.
  4. Krukoski Leon ; Laudadio Nicola ; Doherty ; Jr. Stephen P. ; Kratz Merrill L.. Control system for modulating bleed in response to engine usage. USP2000116141951.
  5. Price, Brian John; Demers, Louis. Dynamic control of a gas turbine engine compressor during rapid transients. USP2012118302405.
  6. Zewde, Netsebrak T; Rowe, Arthur L. Engine arrangements and control. USP2010017647778.
  7. Coffey, Scot; Chapman, Gregory J.; Xiong, Yufei. Gas turbine engine uncontrolled high thrust accommodation system and method. USP20181210156190.
  8. Zickwolf ; Jr. Herbert C. (Bozrah CT). Method and system for controlling variable compressor geometry. USP1991085042245.
  9. Adibhatla, Sridhar; Nolte, Steven Edward; Litzler, Jeffrey Wayne. Method and system for piping failure detection in a gas turbine bleeding air system. USP20190210196928.
  10. Tonno, Giovanni; Paci, Mariateresa; D'Ercole, Michele; Russo, Alessandro; Stewart, Jesse F.; Chiu, Ya-Tien; Ulivi, Marco; Baldassarre, Antonio. Method for controlling the load variations in a gas turbine. USP2013118578717.
  11. Gregory J. Chapman. Smart surge bleed valve system and method. USP2002116481210.
  12. Xiong, Yufei; Faymon, Dave; Rushinsky, John. Surge bleed valve fault detection. USP2003056557400.
  13. Pandey, Achalesh Kumar; Babu, Ravi Yoganatha; Rucigay, Richard John; Doganaksoy, Necip. System and method of monitoring turbine engines. USP2015069068463.
  14. Shinkle, William Randolph. Valve position demand systems and methods. USP20190110168716.