[특허]Magnetorheological fluid devices

Magnetorheological fluid devices 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16F-006/00
출원번호	US-0900567 (1992-06-18)
발명자 / 주소	Carlson J. David (Cary NC) Chrzan Michael J. (Raleigh NC) James Frank O. (Girard PA)
출원인 / 주소	Lord Corporation (Erie PA 02)
인용정보	피인용 횟수 : 173 인용 특허 : 0

초록 ▼

This invention relates to sealless designs of magnetorheological fluid dampers. With these sealless designs a piston rod extends above and below a piston head within a cylindrical housing and has frustoconical elastomer elements attached to and between the rod and housing to allow translation of the piston head and rod. The piston head has a coil contained radially therein that produces magnetic flux in and around the piston. The advantages of utilizing an MR fluid according to the invention include magnetic fields which are easily produced by low voltage electromagnetic coils, damping effects which are velocity independent, and higher yield strength obtained by the MR fluid capable of generating greater damping forces.

대표청구항 ▼

Apparatus for damping motion between first and second relatively movable members, said apparatus comprising: a) a housing containing a volume of magnetorheological fluid; b) first means for attaching said housing to one of said movable members; c) a piston rod mounted for relative movement with respect to said housing; d) second means for attaching said piston rod to another one of said first and second movable members; e) a first block of elastomer interconnecting said housing and said piston rod, said block being fixedly attached to each of said housing and a first end of said piston rod, said block of elastomer forming at least a portion of a first fluid-containing chamber for said magnetorheological fluid; f) a second block of elastomer interconnecting said housing and said piston rod, said block being fixedly attached to each of said housing and a second end of said piston rod and, together with said first block, functioning as the sole means for permitting said piston rod to move relative to said housing, said second block of elastomer forming at least a portion of a second fluid-containing chamber for said magnetorheological fluid; g) a piston attached to an intermediate portion of said piston rod for movement therewith which divides said first fluid-containing chamber from a second fluid-containing chamber for said magnetorheological fluid, substantially all of the movement of said piston being accommodated by flow of fluid past said piston; h) valve means for permitting magnetorheological fluid to flow from and to said first fluid-containing chamber to and from said second fluid-containing chamber, said valve means including i) aperture means for permitting said flow, ii) a magnetic coil associated with said aperture means for controlling said flow therethrough, whereby a desired level of damping of said relative movement is provided.

이 특허를 인용한 특허 (173)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Magnetorheological fluid devices 원문보기

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