EP0089745A2 - Parallel angelegte, getrennte hydraulische Systeme, insbesondere für eine Schiffsruderanlage - Google Patents

Parallel angelegte, getrennte hydraulische Systeme, insbesondere für eine Schiffsruderanlage Download PDF

Info

Publication number
EP0089745A2
EP0089745A2 EP83300823A EP83300823A EP0089745A2 EP 0089745 A2 EP0089745 A2 EP 0089745A2 EP 83300823 A EP83300823 A EP 83300823A EP 83300823 A EP83300823 A EP 83300823A EP 0089745 A2 EP0089745 A2 EP 0089745A2
Authority
EP
European Patent Office
Prior art keywords
pump
pressure
fluid
pumps
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP83300823A
Other languages
English (en)
French (fr)
Inventor
John Straughan Kennedy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Donkin and Co Ltd
Original Assignee
Donkin and Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Donkin and Co Ltd filed Critical Donkin and Co Ltd
Publication of EP0089745A2 publication Critical patent/EP0089745A2/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06—Steering by rudders
    • B63H25/08—Steering gear
    • B63H25/14—Steering gear power assisted; power driven, i.e. using steering engine
    • B63H25/18—Transmitting of movement of initiating means to steering engine
    • B63H25/22—Transmitting of movement of initiating means to steering engine by fluid means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B18/00—Parallel arrangements of independent servomotor systems

Definitions

  • said means for automatically equalising pressure between the pumps in the respective systems may comprise a control valve located between the sides of each respective system and electrically operable by a transducer in the pressure line from the respective pump to establish fluid communication between each side of each cylinder in the respective system. Electrical operation of such a control valve may be accomplished by a circuit including a "Wheatstone bridge" arrangement.
  • boost line relief valves 54 and 55 is provided between each associated pair of pumps 10 and 12 and 11 and 13 .
  • Fig. 4 illustrates a second, less sophisticated embodiment of the present invention as applied to a ship's steering apparatus.
  • This apparatus is not as satisfactory as that shown in Fig. 2 as it requires additional control valves, which are, of course, susceptible to malfunction just as any moving working parts.
  • Each system A and B has a respective one of spill valves 96 and 97 between the two sides of between each pump 10 and 11 (therefore also/the two sides of each cylinder) that is between lines 22 and 28 in system A and between lines 23 and 29 in system B .
  • These spill valves 96 and 97 are operable by the common pressure control valve 92 via drain lines 98 and 99 respectively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
EP83300823A 1982-03-18 1983-02-17 Parallel angelegte, getrennte hydraulische Systeme, insbesondere für eine Schiffsruderanlage Withdrawn EP0089745A2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8207879 1982-03-18
GB8207879 1982-03-18
GB8210440 1982-04-08
GB8210440 1982-04-08

Publications (1)

Publication Number Publication Date
EP0089745A2 true EP0089745A2 (de) 1983-09-28

Family

ID=26282279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83300823A Withdrawn EP0089745A2 (de) 1982-03-18 1983-02-17 Parallel angelegte, getrennte hydraulische Systeme, insbesondere für eine Schiffsruderanlage

Country Status (2)

Country Link
EP (1) EP0089745A2 (de)
GB (1) GB2117060A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7364482B1 (en) * 2007-02-07 2008-04-29 Teleflex Canada Inc. Power steering systems for multiple steering actuators

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB828016A (en) * 1957-05-22 1960-02-10 Dowty Fuel Syst Ltd Improvements in fuel pump arrangements
DE1453518A1 (de) * 1964-09-30 1969-03-27 Linde Ag Steuerorgan fuer die Steuerung von mehreren hydrostatischen Einheiten
GB1178257A (en) * 1965-12-31 1970-01-21 Linde Ag Improvements in Apparatus Comprising Two Hydraulic Pumps Driven by a Common Prime Mover.
FR2038454A5 (de) * 1969-03-07 1971-01-08 Poclain Sa
BE793095A (fr) * 1971-12-23 1973-06-20 Caterpillar Tractor Co Procede et mecanisme d'ajustement de gain pour systeme de commande hydrostatique

Also Published As

Publication number Publication date
GB2117060A (en) 1983-10-05

Similar Documents

Publication Publication Date Title
US2877968A (en) Combined manual and automatic servomotor apparatus
US2764869A (en) Means for synchronizing the travel of two or more traveling work elements
US3987622A (en) Load controlled fluid system having parallel work elements
US2864239A (en) Electro-hydraulic servo system for steering dirigible craft
US4747335A (en) Load sensing circuit of load compensated direction control valve
US3468126A (en) Position control system
JP2001208006A (ja) 可変容量ポンプ用荷重検知油圧制御装置
US3874269A (en) Hydraulic actuator controls
JP2006177561A (ja) 電動油圧式比例制御弁組立体
US3488954A (en) Dual speed steering system
US4055046A (en) Control system having override for fluid operated work elements
US3854382A (en) Hydraulic actuator controls
US3188971A (en) Control system for a pump
US4100932A (en) Pipe burst safety device for natural gas pipe lines or the like
US4568292A (en) Hydraulic assistance device for use in a steering system
US3023584A (en) Fluid system and relief valve assembly therefor
US4394999A (en) Redundant or emergency steering mechanism especially for an aircraft
US3302604A (en) Fluid actuated follow-up steering control mechanism
US3986475A (en) Control arrangement
US2924200A (en) Aircraft flight control apparatus
EP0089745A2 (de) Parallel angelegte, getrennte hydraulische Systeme, insbesondere für eine Schiffsruderanlage
US2859592A (en) Hydraulic transmitter with follow-up
US3606755A (en) Power transmission
US2669096A (en) Temperature compensated force and motion transmitting system
EP0314704A1 (de) Von der last abhängige pumpenregelung vom bypasstyp

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR NL

17P Request for examination filed

Effective date: 19840118

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19840709

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KENNEDY, JOHN STRAUGHAN