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GB1444020A - Controller for fluid pressure operated devices - Google Patents

Controller for fluid pressure operated devices

Info

Publication number
GB1444020A
GB1444020A GB4804875A GB4804875A GB1444020A GB 1444020 A GB1444020 A GB 1444020A GB 4804875 A GB4804875 A GB 4804875A GB 4804875 A GB4804875 A GB 4804875A GB 1444020 A GB1444020 A GB 1444020A
Authority
GB
United Kingdom
Prior art keywords
sleeve
spool
slots
fluid
apertures
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.)
Expired
Application number
GB4804875A
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.)
Eaton Corp
Original Assignee
Eaton Corp
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 Eaton Corp filed Critical Eaton Corp
Publication of GB1444020A publication Critical patent/GB1444020A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/09—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by means for actuating valves
    • B62D5/093—Telemotor driven by steering wheel movement
    • B62D5/097—Telemotor driven by steering wheel movement gerotor type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86638—Rotary valve
    • Y10T137/86646—Plug type
    • Y10T137/86662—Axial and radial flow

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Servomotors (AREA)

Abstract

1444020 Power-assisted steering mechanism EATON CORP 24 Oct 1973 [24 Oct 1972] 48048/75 Heading B7H In a hydrostatic steering controller comprising a valve sleeve 12 rotatably mounted in a bore 70 in a housing 14, and a valve spool 10 mounted for limited rotation in the sleeve 12, the arrangement in such that fluid pressure acts on balancing areas of the spool 10 and sleeve 12 to maintain the sleeve 12 centrally disposed in the bore 70 and to maintain the spool 10 centrally disposed within the sleeve. An inlet port 72 and two motor ports 74, 75 in the housing 14 each communicate with an annular groove 76, 78, 79 surrounding the sleeve 12. The inlet port 72 communicates with apertures 20 in the sleeve 12 which co-operates as described in Specification 1,444,019 with slots 18 in the spool 10 when the spcol is in a neutral position relative to the sleeve to provide a fluid flow path between the inlet port 72 and an outlet port 73. Balancing grooves 131 interspersed with the slots 18 are pressurised when the spool is rotated relative to the sleeve to centralise the spool in the sleeve and balance external pressure acting on the sleeve due to pressure building up in the grcove as the slots move out of register with the apertures 20. Axial feed slots 114 in the spool 10, which communicate with one of two sets of apertures 117, 119 in the sleeve 12 when the spool is rotated to direct pressure fluid to one of the motor ports 74, 75, are interconnected by circumferential grooves 122, 124 and define a pressurised area which centralises the spool and balances external pressure acting in the groove 78, 79 on the spool. The spool 10 has splines at one end 97 for connection to a steering wheel shaft, and the sleeve 12 is connected by a drive pin 102 and wobble shaft 57 to a gerotor pump/ motor unit B. The drive pin 102 is received by slots 103 in the spool 10 with sufficient clearance to allow limited relative rotation which is resisted by leaf spring 106. Slots 112, 114, 116 and 118 in the spool 10 and apertures 113, 117, 119 in the sleeve 12 co-operate upon relative rotation of spool and sleeve from a neutral position so that fluid from the inlet port 72 is directed to one of steering motor ports 74, 75 by way of the pump/motor unit B and fluid is returned from the other motor port 74, 75 to the outlet port 73.
GB4804875A 1972-10-24 1973-10-24 Controller for fluid pressure operated devices Expired GB1444020A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30003772 US3819307A (en) 1972-10-24 1972-10-24 Stability means for a controller for fluid pressure operated devices

Publications (1)

Publication Number Publication Date
GB1444020A true GB1444020A (en) 1976-07-28

Family

ID=23157418

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4804875A Expired GB1444020A (en) 1972-10-24 1973-10-24 Controller for fluid pressure operated devices
GB4960273A Expired GB1444019A (en) 1972-10-24 1973-10-24 Stability means for a controller for fluid pressure operated de vices

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB4960273A Expired GB1444019A (en) 1972-10-24 1973-10-24 Stability means for a controller for fluid pressure operated de vices

Country Status (9)

Country Link
US (1) US3819307A (en)
JP (1) JPS4994028A (en)
AU (1) AU471180B2 (en)
BR (1) BR7308320D0 (en)
CA (1) CA962550A (en)
DE (1) DE2353068A1 (en)
FR (1) FR2203953A1 (en)
GB (2) GB1444020A (en)
IT (1) IT998896B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3504993A1 (en) * 1985-02-14 1986-08-14 Danfoss A/S, Nordborg CONTROL UNIT FOR HYDROSTATIC AUXILIARY STEERING DEVICES

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895888A (en) * 1973-10-19 1975-07-22 Trw Inc Hydrostatic control unit
US4033377A (en) * 1974-09-18 1977-07-05 Eaton Corporation Controller for fluid pressure operated devices
US3960234A (en) * 1974-09-18 1976-06-01 Eaton Corporation Controller for fluid pressure operated devices providing high pressure to an auxiliary device
GB1524707A (en) * 1974-09-18 1978-09-13 Eaton Corp Controller for fluid pressure operated devices
HU170933B (en) * 1975-04-01 1977-10-28 Autoipari Kutato Intezet Port control particularly for power assisted steering unit of auto
US4109679A (en) * 1976-04-23 1978-08-29 Eaton Corporation Controller for fluid pressure operated devices
IT1077304B (en) * 1976-06-23 1985-05-04 Eaton Corp REGULATOR FOR DEVICES OPERATED BY THE PRESSURE OF A FLUID
DE2633011C3 (en) * 1976-07-22 1979-07-26 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Hydrostatic power steering, in particular for motor vehicles
US4096883A (en) * 1976-08-24 1978-06-27 Eaton Corporation Closed-center controller and neutral bypass arrangement therefor
CA1059440A (en) * 1977-01-24 1979-07-31 Oliver W. Johnson Controller for fluid pressure operated devices
DE2814230C3 (en) * 1978-04-03 1980-09-18 Danfoss A/S, Nordborg (Daenemark) Spring arrangement for centering a rotary slide control valve of a hydrostatic steering unit
DE2906183C2 (en) * 1979-02-17 1986-09-18 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Hydrostatic steering device for automobiles
DE2917435C2 (en) * 1979-04-28 1987-03-12 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Rotary valve device for controlling a hydrostatic servo drive
DE2917298C2 (en) * 1979-04-28 1985-03-21 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Rotary valve device for controlling a hydrostatic servo drive
DE2944883C2 (en) * 1979-11-07 1982-08-26 Danfoss A/S, 6430 Nordborg Hydrostatic steering device
DE2952674C2 (en) * 1979-12-28 1983-03-24 Danfoss A/S, 6430 Nordborg Hydraulic steering device
US4336687A (en) * 1980-04-21 1982-06-29 Eaton Corporation Load sensing controller
DE3126040C2 (en) * 1981-07-02 1985-12-12 Danfoss A/S, Nordborg Hydraulic control device
US4462774A (en) * 1982-09-27 1984-07-31 William Hotine Rotary expander fluid pressure device
DE3302001C2 (en) * 1983-01-21 1985-05-09 Danfoss A/S, Nordborg Rotary valve for a hydrostatic steering unit for vehicles
GB2144379B (en) * 1983-08-05 1987-05-20 Cam Gears Ltd Power steering valve and method of making the same
EP0264613B1 (en) * 1986-10-10 1994-03-02 Eaton Corporation Improved fluid controller and dampening fluid path
JP2532079B2 (en) * 1987-01-30 1996-09-11 日産自動車株式会社 Rotary control valve for power steering
DE3710817A1 (en) * 1987-04-01 1988-10-20 Rexroth Mannesmann Gmbh ROTARY PISTON MACHINE, IN PARTICULAR GEAR RING MACHINE
US4862690A (en) * 1988-10-06 1989-09-05 Eaton Corporation Steering control unit with both flow amplification and manual steering capability
US5161577A (en) * 1990-04-23 1992-11-10 Eaton Corporation Fluid controller having rotary/axial valving, and spring arrangement therefor
US5080135A (en) * 1990-10-24 1992-01-14 Eaton Corporation Large deflection angle rotary modulation steering valve
DE4107604C2 (en) * 1991-03-09 1994-12-15 Danfoss As Fully hydraulic steering unit
DE4204336C2 (en) * 1992-02-14 1995-07-06 Hydraulik Nord Gmbh Hydrostatic steering device
IT1306089B1 (en) * 1998-07-31 2001-05-29 Ognibene Spa VARIABLE CHOKE ROTARY DISPENSER PARTICULARLY PERSERVOSTERZI OR HYDROSTATIC GUIDES
DE10025509B4 (en) * 2000-05-23 2004-08-19 Sauer-Danfoss Holding Aps Rotary slide set for a hydraulic control device
ITRE20020049A1 (en) * 2002-05-27 2003-11-27 Ognibene Spa HYDROSTATIC GUIDE FOR QUICK STEERING
DE102006026394A1 (en) * 2005-06-10 2007-02-08 Sauer-Danfoss Aps Fluid regulator for e.g. steering system in motor vehicles has two groups of measuring openings that form fluid connection between valve body and volume chambers of measuring motor
US7984785B2 (en) 2008-02-28 2011-07-26 Eaton Corporation Control valve assembly for electro-hydraulic steering system
US7931112B2 (en) * 2008-05-02 2011-04-26 Eaton Corporation Isolation valve for a load-reaction steering system
DE102010050137B3 (en) * 2010-11-03 2013-01-31 Sauer-Danfoss Aps Control device for a hydrostatic steering motor
EP2610142B1 (en) * 2011-12-27 2014-03-05 Sauer-Danfoss ApS Hydraulic steering device
ITRE20120014A1 (en) * 2012-02-28 2013-08-29 Ognibene Power Spa DISTRIBUTOR DEVICE FOR DRIVING
WO2014066592A1 (en) * 2012-10-24 2014-05-01 David Paul Smith Electro-hydraulic pressure reducing and relieving valve with flow force control for large flow capacity
US9435446B1 (en) * 2014-07-24 2016-09-06 Google Inc. Rotary valve with brake mode
DE102020106437B4 (en) 2020-03-10 2024-09-26 Danfoss Power Solutions Aps Fluid control device, in particular as part of a hydraulic steering unit
DE102020106440B4 (en) * 2020-03-10 2024-08-01 Danfoss Power Solutions Aps Hydraulic steering unit
DE102020106438B4 (en) * 2020-03-10 2022-03-31 Danfoss Power Solutions Aps Fluid control device, in particular as part of a hydraulic steering unit
CN113562069A (en) * 2021-07-14 2021-10-29 芜湖中意液压科技股份有限责任公司 Full hydraulic steering gear of split type front cover threaded connection

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US25126A (en) * 1859-08-16 Churn
DE1550187B1 (en) * 1966-06-07 1970-05-06 Danfoss As Four-way switch valve for hydraulic systems
DE1755387C3 (en) * 1968-05-03 1973-11-08 Danfoss A/S, Nordborg (Daenemark) Hydrostatic steering device, especially for heavy vehicles
DE1755460C2 (en) * 1968-05-11 1986-08-07 Danfoss A/S, Nordborg Hydrostatic control device, in particular for steering
US3528521A (en) * 1968-06-13 1970-09-15 Allis Chalmers Mfg Co Hydraulic steering system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3504993A1 (en) * 1985-02-14 1986-08-14 Danfoss A/S, Nordborg CONTROL UNIT FOR HYDROSTATIC AUXILIARY STEERING DEVICES

Also Published As

Publication number Publication date
IT998896B (en) 1976-02-20
CA962550A (en) 1975-02-11
FR2203953A1 (en) 1974-05-17
DE2353068A1 (en) 1974-05-02
JPS4994028A (en) 1974-09-06
GB1444019A (en) 1976-07-28
AU471180B2 (en) 1976-04-08
AU6171473A (en) 1975-04-24
US3819307A (en) 1974-06-25
BR7308320D0 (en) 1974-08-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee