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특허 상세정보

Automatic control circuit for an electrically powered hydraulic pump

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F15B-020/00    F15B-011/16   
미국특허분류(USC) 60/403 ; 60/405 ; 60/DIG ; 2 ; 180/82R
출원번호 US-0541752 (1975-01-17)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 19  인용 특허 : 0
초록

An emergency hydraulic system for use in a vehicle having an engine which not only powers the vehicle but also drives a main hydraulic pump to supply hydraulic fluid under pressure to a hydraulic control means is disclosed. The emergency hydraulic system includes an auxiliary hydraulic pump driven by an electric motor to provide an auxiliary source of hydraulic fluid under pressure to the hydraulic control means under emergency conditions. An electrical control circuit for the electric motor is described which control circuit will automatically activate ...

대표
청구항

In a vehicle having an engine, hydraulic control means actuated by hydraulic fluid under pressure, a main hydraulic pump driven by said engine to provide hydraulic fluid under pressure for actuating said control means, and an auxiliary hydraulic pump driven by an electric motor to provide hydraulic fluid under pressure for actuating said control means; an electrical control circuit for said electric motor comprising: a. a source of electrical power; b. a first solenoid operated relay having normally open contacts connected in series with said electric mo...

이 특허를 인용한 특허 피인용횟수: 19

  1. Maes ; Richard J.. Control apparatus. USP1978074102129.
  2. Hill, Ian; Elwell, Nick. Control system for a hydraulic coupler. USP2014108863640.
  3. Usui Keizaburo (Yokohama JPX) Hayama Isao (Yokohama JPX). Counter shaft automatic power transmission. USP1980044195720.
  4. Hill, Ian. Coupler. USP2016039297141.
  5. Hill, Ian. Coupler with gravity operated safety device. USP2014018622645.
  6. Johnson Kenneth C. (Coloma MI). Emergency hydraulic system. USP1983104410057.
  7. Hill, Ian. Hydraulic coupler with pin retention system for coupling an attachment to a work machine. USP2016109469965.
  8. Collet, Olivier; Dorget, Emmanuel; Patrigeon, Claire; Bucheton, Daniel. Hydraulic system architecture for controlling steering. USP2004086769251.
  9. Fukui, Atsushi. Local backup hydraulic actuator for aircraft control systems. USP2013058434301.
  10. Matsui, Gen. Local backup hydraulic actuator for aircraft control systems. USP2009107600715.
  11. Matsui, Gen. Local backup hydraulic actuator for aircraft control systems. USP2011017870726.
  12. Hosfield, Robert L.; Gamble, Jonathan; Weigle, Jim. Redundant stationary fire fighting system and method. USP2013088511395.
  13. Byrne James E. (Oklahoma City OK). Remotely actuated auxiliary pressurization system. USP1980024187927.
  14. Daims, Kurt. Steering and braking systems for a coasting motor vehicle. USP20190210207710.
  15. Miller Wayne R. (Dubuque IA). Vehicle emergency steering system. USP1982084345660.
  16. Durgan ; Virgil R. C. ; Harper ; Robert W. ; Ritter ; Jr. ; Arthur J.. Vehicle having portable power means for brake control. USP1978114123906.
  17. Hoag ; Peter J. ; Keyzer ; Carl A. ; Steffens ; Michael W.. Vehicle starting circuit to by-pass auxiliary steering system. USP1978034079806.
  18. Thunes,Allan S.. Work machine with supplemental power steering. USP2007017168245.
  19. Ideta Yasufumi (Tokyo JPX). Working fluid supply system for a hydraulic power booster and a power steering system. USP1984014423598.