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특허 상세정보

Landing gear shock absorber with variable viscosity fluid

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-025/58   
미국특허분류(USC) 244/104FP; 188/2671
출원번호 US-0863658 (2001-05-23)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Bracewell & Patterson, L.L.P.
인용정보 피인용 횟수 : 18  인용 특허 : 13
초록

An aircraft landing gear includes a sealed cylinder divided by a cylinder head to define an upper chamber and a lower chamber. The lower chamber is further divided by a piston having a piston rod passing in a sealed manner through the lower cylinder end. The cylinder head includes one or more orifices, the opening of each containing an electromagnetic coil configured to control the viscosity of the magneto-rheological oil passing therethrough. The electrical current through the electromagnetic coil is continually controlled by a microcomputer with attach...

대표
청구항

1. A suspension and shock absorber for a retractable landing gear of an aircraft, comprising:a cylinder having a first end and a second end; a piston located in the cylinder, the piston having a rod extending outward from the second end of the cylinder, the piston dividing the cylinder into first and second chambers that change in volume as the piston moves within the cylinder; a magneto-rheological hydraulic fluid located within the first chamber of the cylinder and in contact with a first side of the piston; a pressurized gas mixed with the hydraulic f...

이 특허를 인용한 특허 피인용횟수: 18

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  3. Mochimaru, Masami; Kawaguchi, Sumio; Miyazaki, Mitsuru; Suzuki, Akio. Damper and vibration damping structure using the same. USP2011088002093.
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  9. DeVlieg, Garrett H.. Landing gear strut extender. USP2013068459590.
  10. Anderfaas, Eric N.; Banks, Dean. Magnetorheological damper system. USP2005106953108.
  11. Anderfaas, Eric N.; Banks, Dean. Magnetorheological damper system. USP2013048413773.
  12. Anderfaas, Eric N.; Banks, Dean. Magnetorheological damper system. USP2016039273748.
  13. Manes, Enrico; Bird, Connie E.; Chiappetta, Jr., Louis. Shock damper. USP2016049303709.
  14. Carlson,J. David. System comprising magnetically actuated motion control device. USP2007077243763.
  15. Carter,Jay W.; Mitchell,George D.. Tilting mast in a rotorcraft. USP2006117137591.
  16. Yoeli, Raphael. VTOL vehicle with coaxially tilted or tiltable rotors. USP2013018342441.
  17. Yoeli, Rafi. Vehicles particularly useful as VTOL vehicles. USP2010097789342.
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