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" |
국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) | F02C-007/06 F02G-003/00 F02C-007/32 F02C-003/107 |
미국특허분류(USC) | 060/039.08; 060/226.1; 244/058; 477/030; 477/031; 184/006.11 |
출원번호 | US-0278243 (2011-10-21) |
등록번호 | US-8966875 (2015-03-03) |
발명자 / 주소 | |
출원인 / 주소 | |
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 2 인용 특허 : 19 |
A gas turbine engine includes a constant speed transmission driven by a spool. The constant speed transmission drives a first pump and a second pump. In a further non-limiting example, the first pump is driven by a first drive shaft which is driven by the constant speed transmission and the second pump is driven by a second drive shaft which is driven by the first shaft through a gearbox to provide a constant speed ratio between the first shaft and the second shaft.
1. A gas turbine engine comprising: a spool;a constant speed transmission driven by said spool;a first pump driven by said constant speed transmission; anda second pump driven by said constant speed transmission. 2. The gas turbine engine as recited in claim 1, wherein said first pump and said second pump are driven by a single axial drive shaft driven by said constant speed transmission. 3. The gas turbine engine as recited in claim 1, wherein said first pump and said second pump are arranged along a common axis. 4. The gas turbine engine as recited in ...