• 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
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"

특허 상세정보

Continuously variable ratio power transmission

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16H-047/04    F16H-037/06   
미국특허분류(USC) 74/687 ; 74/681
출원번호 US-0234244 (1981-02-13)
발명자 / 주소
인용정보 피인용 횟수 : 16  인용 특허 : 1

A power transmission is provided characterized by smoothly and continuously variable gear ratios between the input and output shaft by incorporating a no-load restraint means for the ring gear of a ring, planetary and sun gear transmission system, the restraint comprising a wobble plate pump operative in a closed liquid circuit and driven by said ring gear to impose a restraint on same which varies according to an external control of the angle of the wobble plate and also including a second wobble plate pump in the same closed line or loop as the first p...


A clutchless, direct-drive transmission comprising: (a) input and output shafts linked through sun and planetary gears; (b) a ring gear engaged on said planetary gears for controlling the relative rotation of said shafts; (c) a first wobble plate pump and a liquid-filled closed line connecting the inlet and outlet of said pump said pump being operatively connected to said ring gear to concomitantly exert a variable restraining force on, and be driven by, said ring gear; (d) externally operable control means for varying the fluid displacement per cycle of...

이 특허를 인용한 특허 피인용횟수: 16

  1. No Oskar (Mhlheim-Ruhr DEX) No Rolf (Berlin-Charlottenburg DEX) No Andreas (Aachen-Richterich DEX). Apparatus for adjusting rolls of roll stand. USP1984094470284.
  2. Murrell Peter W. (Cumbria GB2) Calverley John (Cumbria GB2) Williams Donald (Powyf GB7) Thomas Douglas J. (Powyf GB7). Apparatus for providing an electrical generator with a constant rotational speed from a variable speed input. USP1988104774855.
  3. Linet, Hugues Henri Raymond; Mouchnino, Cyril Franck; Pettinotti, Serge Dominique. Device for driving accessory machines of a gas turbine engine. USP2010057707909.
  4. Swick,William Christopher; Marr,Jerry Dwight; Diecke,Friedrich Konrad. Drive system for a machine. USP2008037344465.
  5. Carl, Blake A.; Zhang, Hao; Kimpel, Richard. Hydraulic power split engine with enhanced torque assist. USP2014098827853.
  6. Fredriksen Nils (Harsewinkel DEX). Hydraulic-mechanical transmission system having output branches. USP1985014491034.
  7. Kita Yasuo (Kyoto JPX) Sugawara Ryosuke (Kyoto JPX). Hydromechanical transmission. USP1989034813306.
  8. Kita Yasuo (Kyoto JPX) Fujii Hiroyuki (Uji JPX). Hydromechanical transmission and hydromechanical speed-change mechanism. USP1988104776233.
  9. Keiser Fred. Infinitely variable ratio transmission. USP1999105971880.
  10. Staalesen,Haakon A.. Method and system for controlling power generator having hydraulic motor drive. USP2009027485979.
  11. Vahabzadeh, Hamid; Borgerson, James B.; Hart, James M.; Wittkopp, Scott H.. Multiple speed transmission with a pump assisted launch device. USP2014088808135.
  12. Olsen, Odd A.; Skaar, Erling A.. Power generator system. USP2012108288880.
  13. Folsom, Lawrence R.; Tucker, Clive; O'Boyle, Shaun M.. Radial piston hydromechanical continuously variable transmission. USP2003056569049.
  14. Jolliff Norman E. ; Miller Joseph V.. Reversible variable speed transmission and transaxle having pressure compensating flow metering device. USP2000016010423.
  15. Nygren Ingemar (Danderyd SEX). Soft shaft interconnecting device. USP1986054586400.
  16. Goldenberg Nahum (Kiriat Ono ILX). Variable speed hydraulic unit. USP1990054922804.