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) | B64G-001/26 B64G-001/40 |
미국특허분류(USC) | 244/172 ; 137/256 ; 60/257 ; 244/135B |
출원번호 | US-0033829 (1987-04-03) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 13 인용 특허 : 2 |
The two-liquid propulsive system for an artificial satellite is characterized in that the components of the propellant are unequally distributed in at least two pairs of tanks (12, 16) and (14, 18) which are associated in such a way as to provide additional fuel in a first pair of tanks and additional oxidizer in a second pair of tanks, and in that the different pairs of tanks are suitable for being used in succession during predetermined time periods so that the exhaustion of a first propellant component in one tank (14 or 16) indicate that the residual...
A two fuel component propulsive system for an artificial satellite, in particular for a geostationary satellite, the system being intended to provide advance warning of the end of the normal lifetime of the satellite and to ensure that said satellite is extracted from its operating orbit, the system comprising: at least two pairs of tanks with each pair including a fuel tank and an oxidizer tank, wherein the oxidizer tank of one pair can hold a quantity of oxidizer greater than the quantity of fuel held by the paired fuel tank by a specific amount and wh...