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) | B64C-021/02 |
미국특허분류(USC) | 244/208 |
출원번호 | US-0691471 (1996-08-02) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 12 인용 특허 : 6 |
Aircraft apparatus and method capable of V/STOL (vertical, short takeoff and landing) in addition to conventional flight. For V/STOL operation, induced lift is provided by blowing air over the upper surface of each wing through a duct installed near the leading edge. Intake air is supplied to the blowing fan through a duct installed near the trailing edge, thus providing suction as well as blowing. Two fans in series are required. The engine provides power not only to the propeller but also to a transmission which provides power to the pulleys driving th...
An aircraft comprising: a fuselage; at least two wings, one wing on the left side of the fuselage and one wing on the right side of the fuselage, each of said wings having a high lift airfoil shape, each of said wings having a first elongate tangentially slotted duct proximate a leading edge of said airfoil and a second elongate tangentially slotted duct proximate a trailing edge of said airfoil; means for blowing high-pressure, high-velocity air through said first slotted duct along the upper surface of the wing and for sucking boundary layer air throug...