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" |
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) | F15B-013/044 |
미국특허분류(USC) | 137/59617 ; 137/870 ; 251/65 ; 251/137 |
출원번호 | US-0493593 (1983-05-11) |
우선권정보 | JP-0079498 (1982-05-12) |
발명자 / 주소 | |
출원인 / 주소 | |
인용정보 | 피인용 횟수 : 14 인용 특허 : 0 |
A solenoid-operated valve for selecting one of two pressure sources has a stationary core which comprises a cylindrical magnetic body which is energized by an excitation current of selected direction and which is housed in a cylindrical valve housing. First and second magnet chambers communicating with first and second pressure sources at two ends of the stationary core are defined in the portions of the housing which oppose first and second pole faces. First and second permanent magnets which are magnetized to the poles opposite to those of the first an...
A solenoid-operated valve for selecting one of two pressure sources, comprising: a stationary core which is made of a magnetic material and which has first and second pole faces to be magnetized to first and second poles which are opposite to each other; excitation coil means for exciting the stationary core to one of the first and second poles; vent hole means for communicating between said first and second pole faces of said stationary core; first and second permanent magnets which are respectively arranged to oppose said first and second pole faces of...