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특허 상세정보

Failsafe hydraulic steering system for use in an industrial vehicle

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62D-005/06   
미국특허분류(USC) 180/403 ; 180/406
출원번호 US-0716115 (1996-09-19)
우선권정보 KR-0030777 (1995-09-19)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Lowe Hauptman Gopstein Gilman & Berner
인용정보 피인용 횟수 : 13  인용 특허 : 0
초록

The inventive steering system is of the type having an engine, a fluid reservoir, a steering valve unit, an actuator control valve unit, a main fluid pump driven by the engine for pumping the fluid in the reservoir to feed pressure fluid to the steering valve unit and the actuator control valve unit and a priority valve for enabling the pressure fluid to be first supplied to the steering valve unit. Characteristically, the steering system includes an electric motor, a battery selectively connected to the electric motor for supplying electric current to t...

대표
청구항

[ What is claimed is:] [1.] A failsafe hydraulic steering system for use in an industrial vehicle having an engine, a fluid reservoir, a steering valve unit, an actuator control valve unit, a main fluid pump driven by the engine for pumping a fluid in the reservoir to feed pressure fluid to the steering valve unit and the actuator control valve unit and a priority valve for enabling the pressure fluid to be first supplied to the steering valve unit, wherein the improvement comprises:an electric motor;a power supply selectively connected to the electric m...

이 특허를 인용한 특허 피인용횟수: 13

  1. Dostal, Gary L.; Wallestad, Steven D.; Jeffries, Dennis L.; Lindsay, Ryan. Dual pump hydraulic system. USP2013018347618.
  2. Park, Jung Sik. Hybrid power steering system. USP2015059022167.
  3. Petersen, Morten Hoeck; Porskrog, Bendt; Sevelsted, Nils E.. Hydraulic control arrangement. USP2016029261084.
  4. Ogata, Yusuke; Nakada, Hirofumi. Hydraulic control system for vehicles. USP2018069989148.
  5. Gunter Ahlert DE; Detlef Beckmann DE; Thomas Kind DE; Thomas Maier DE; Martin Rothmund DE; Wolfram Thomas DE; Jurgen Trost DE; Gert Volk DE. Hydraulic power steering system for motor vehicles. USP2002036354393.
  6. Dybing, Philip James. Hydraulic systems utilizing combination open- and closed-loop pump systems. USP2015129217447.
  7. Dybing, Philip J.. Multiple fluid pump combination circuit. USP2017029574579.
  8. Knoff,Bernd; Neugebauer,Dieter. Power steering device for a vehicle. USP2006127143862.
  9. Nakashima,Seiji. Steering apparatus for electric industrial vehicle. USP2008047357215.
  10. Rexius, Arlen; Looney, David L.; Wyckoff, Chris. Vehicle having auxiliary steering system. USP2012018100220.
  11. James Anton Miller. Vehicle hydraulic system. USP2002106460655.
  12. Bohner Hubert,DEX ; Moser Martin,DEX. Vehicle steering mechanism. USP2000086102150.
  13. Clifford, Jimmie D.; Smith, Brent E.; Anderson, Bruce E.; Trowbridge, Jeffrey C.; Osselaere, Guy H. J.; Vandendriessche, Rik; Verheye, Carlos J. A.; Leplae, Wim. Work vehicle with hydraulic assist for power off steering. USP2018019867325.