GB1394929A - Hydraulic direction-control valve - Google Patents

Hydraulic direction-control valve

Info

Publication number
GB1394929A
GB1394929A GB2884173A GB2884173A GB1394929A GB 1394929 A GB1394929 A GB 1394929A GB 2884173 A GB2884173 A GB 2884173A GB 2884173 A GB2884173 A GB 2884173A GB 1394929 A GB1394929 A GB 1394929A
Authority
GB
United Kingdom
Prior art keywords
valve
liquid
ram
port
return
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
GB2884173A
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.)
CAPILANO ENG CO Ltd
Original Assignee
CAPILANO ENG 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 CAPILANO ENG CO Ltd filed Critical CAPILANO ENG CO Ltd
Priority to GB2884173A priority Critical patent/GB1394929A/en
Priority to AU69822/74A priority patent/AU467397B2/en
Priority to DE19742428825 priority patent/DE2428825C3/en
Priority to SE7407948A priority patent/SE393166B/en
Priority to CA202,664A priority patent/CA1004109A/en
Priority to FR7420939A priority patent/FR2233515B1/fr
Priority to US48048074 priority patent/US3908687A/en
Publication of GB1394929A publication Critical patent/GB1394929A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • 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
    • 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
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2544—Supply and exhaust type
    • Y10T137/2554—Reversing or 4-way valve systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Safety Valves (AREA)
  • Check Valves (AREA)

Abstract

1394929 Marine steering systems CAPILANO ENG CO Ltd 18 June 1973 28841/73 Heading B7V [Also in Division F2] A valve controlling the rudder operating ram 1 in a marine steering system comprises a valve body 11 having inlets 16, 17 for pressure liquid from opposite sides respectively of a reversible pump and outlets 25, 26 leading to opposite sides respectively of the ram piston 2, non- return valves 27, 28 being provided adjacent the respective outlets. A bore communicating with inlets 16, 17 and drain 18 contains spools 40, 41 biased apart by spring 44 and having spigots 42, 43 extending towards each other and spigots 15 extending towards the plugged ends of the bore. Thus when liquid is pumped, e.g. to inlet 16 spool 40 is urged rightwards to open port 21 but close return port 23 so that liquid flows through passage 19, non-return valve 27 and outlet 25 to the left side of ram piston 2. Simultaneously the pressure in passage 19 acts via the clearance between restriction 45 and spigot 30 of a piston 29 to urge the latter rightwards until spigot 31 unseats valve 28 and permits liquid from the right side of ram piston 2 to be returned to drain 18 via passage 20 and port 24. When pump pressure is removed from inlet 16 spring 44 returns spool 40 leftwards closing port 21 but communicating ports 23 and 24 so that the pressures equalize on opposite sides of spool 29, the latter thus ceasing to unseat valve 28. The restriction 45 prevents hunting of the rudder when moved from a hard-over position. The system may include, as shown, at least one other identical control valve in parallel with the first for controlling the rudder from another position of the ship. The return spring 44 prevents a condition wherein the control liquid from one valve flows to drain via the other valve rather than to the ram 1. The pump may be of swash plate type directly connected to a hand operated steering wheel.
GB2884173A 1973-06-18 1973-06-18 Hydraulic direction-control valve Expired GB1394929A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB2884173A GB1394929A (en) 1973-06-18 1973-06-18 Hydraulic direction-control valve
AU69822/74A AU467397B2 (en) 1973-06-18 1974-06-06 Improved marine steering control valve and system
DE19742428825 DE2428825C3 (en) 1973-06-18 1974-06-14 Hydraulic check valve assembly for a rudder control system for watercraft
SE7407948A SE393166B (en) 1973-06-18 1974-06-17 HYDRAULIC CONTROL VALVE UNIT
CA202,664A CA1004109A (en) 1973-06-18 1974-06-17 Marine steering control valve and system
FR7420939A FR2233515B1 (en) 1973-06-18 1974-06-17
US48048074 US3908687A (en) 1973-06-18 1974-06-18 Marine steering control valve and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2884173A GB1394929A (en) 1973-06-18 1973-06-18 Hydraulic direction-control valve

Publications (1)

Publication Number Publication Date
GB1394929A true GB1394929A (en) 1975-05-21

Family

ID=10282025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2884173A Expired GB1394929A (en) 1973-06-18 1973-06-18 Hydraulic direction-control valve

Country Status (6)

Country Link
US (1) US3908687A (en)
AU (1) AU467397B2 (en)
CA (1) CA1004109A (en)
FR (1) FR2233515B1 (en)
GB (1) GB1394929A (en)
SE (1) SE393166B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4710141A (en) * 1984-05-29 1987-12-01 Outboard Marine Corporation Marine propulsion device power steering system
US4976639A (en) * 1988-07-28 1990-12-11 Outboard Marine Corporation Power steering mechanism for marine installations
GB2264996A (en) * 1992-03-13 1993-09-15 John Burdon Pressurised-fluid valve assembly

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341149A (en) * 1979-08-30 1982-07-27 Caterpillar Tractor Co. Selectively actuatable fluid control system for a work element
US4286432A (en) * 1979-08-30 1981-09-01 Caterpillar Tractor Co. Lock valve with variable length piston and hydraulic system for a work implement using the same
FI60429C (en) * 1980-06-05 1982-01-11 Tampella Oy Ab HYDRAULIC KOLVCYLINDERANORDNING MED SITT VENTILORGAN
US4431422A (en) * 1981-04-29 1984-02-14 Outboard Marine Corporation Marine hydraulic steering system control
US4578039A (en) * 1981-04-29 1986-03-25 Outboard Marine Corporation Marine hydraulic steering system control
US5076145A (en) * 1990-06-04 1991-12-31 Hagglunds Denison Corporation Axial piston pump having a blocking valve in a manually controlled valve plate
US5349818A (en) * 1993-08-11 1994-09-27 Teleflex (Canada) Limited Low deadband marine hydraulic steering system
US5553743A (en) * 1994-10-27 1996-09-10 Milk Specialties Company Liquid diet delivery system and control valve for use therein
US5481871A (en) * 1995-03-02 1996-01-09 Teleflex (Canada) Ltd. Hydraulic steering system with spool pressure equalization
US5575150A (en) * 1995-04-12 1996-11-19 Northrop Grumman Corporation Stiffness enhanced electrohydrostatic actuator
US20100090143A1 (en) * 2008-08-28 2010-04-15 Kot Norbert J Dual locking valve
CN102514699A (en) * 2012-01-11 2012-06-27 江苏吉信远望船舶设备有限公司 Steering mechanism of shifting fork piston type hydraulic steering gear
CN103253363A (en) * 2012-02-21 2013-08-21 江苏吉信远望船舶设备有限公司 Pushing rudder of shifting fork piston type hydraulic steering gear
US9611871B2 (en) 2013-09-13 2017-04-04 Norbert J. Kot Pneumatic valve assembly and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472261A (en) * 1966-01-05 1969-10-14 Racine Hydraulics Inc Directional control valve
US3566903A (en) * 1969-04-24 1971-03-02 Omark Prentice Hydraulics Inc Dump valve
US3576192A (en) * 1969-11-10 1971-04-27 Capilano Engineering Co Ltd Hydraulic uniflow control unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4710141A (en) * 1984-05-29 1987-12-01 Outboard Marine Corporation Marine propulsion device power steering system
US4976639A (en) * 1988-07-28 1990-12-11 Outboard Marine Corporation Power steering mechanism for marine installations
GB2264996A (en) * 1992-03-13 1993-09-15 John Burdon Pressurised-fluid valve assembly

Also Published As

Publication number Publication date
AU6982274A (en) 1975-11-27
FR2233515B1 (en) 1979-05-25
AU467397B2 (en) 1975-11-27
US3908687A (en) 1975-09-30
SE7407948L (en) 1974-12-19
DE2428825B2 (en) 1976-02-12
FR2233515A1 (en) 1975-01-10
DE2428825A1 (en) 1975-01-23
SE393166B (en) 1977-05-02
CA1004109A (en) 1977-01-25

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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