GB2018696A - Hydraulic synchronising systems - Google Patents

Hydraulic synchronising systems

Info

Publication number
GB2018696A
GB2018696A GB7910232A GB7910232A GB2018696A GB 2018696 A GB2018696 A GB 2018696A GB 7910232 A GB7910232 A GB 7910232A GB 7910232 A GB7910232 A GB 7910232A GB 2018696 A GB2018696 A GB 2018696A
Authority
GB
United Kingdom
Prior art keywords
actuators
conduits
hydraulic
bodies
correcting
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.)
Granted
Application number
GB7910232A
Other versions
GB2018696B (en
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.)
Schweizerische Lokomotiv und Maschinenfabrik AG (SLM)
Original Assignee
Schweizerische Lokomotiv und Maschinenfabrik AG (SLM)
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 Schweizerische Lokomotiv und Maschinenfabrik AG (SLM) filed Critical Schweizerische Lokomotiv und Maschinenfabrik AG (SLM)
Publication of GB2018696A publication Critical patent/GB2018696A/en
Application granted granted Critical
Publication of GB2018696B publication Critical patent/GB2018696B/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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
    • B61F5/386—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles fluid actuated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Actuator (AREA)

Abstract

Rotational movements of the bodies (12, 14) of a rail vehicle are synchronised by two hydraulic actuators (20, 22) interconnected by two conduits (50, 52). To keep the conduits full of oil, an accumulator (87) is connected to the conduits through two non-return valves (82, 84). To keep the actuators in step, even if leakages occur, a spool valve (44) is provided, which opens correcting flow paths in dependence on the difference, if any, between the positions of the pistons (24, 25) of the two actuators. Such a flow path bypasses one or other of the non-return valves (82, 84), so that the direction of flow is controlled by the other non-return valve. As soon as the external forces on the bodies are such as to bring the actuators back into step, a correcting flow occurs. A spring device (54) allows the actuators to move out of step, under spring control; no correcting flow occurs under these conditions. <IMAGE>
GB7910232A 1978-03-23 1979-03-23 Hydraulic synchronising systems Expired GB2018696B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH319578A CH627694A5 (en) 1978-03-23 1978-03-23 DEVICE FOR HYDRAULIC CONTEMPORARY MOTION TRANSMISSION BETWEEN TWO MOVABLE PARTS.

Publications (2)

Publication Number Publication Date
GB2018696A true GB2018696A (en) 1979-10-24
GB2018696B GB2018696B (en) 1982-10-20

Family

ID=4250712

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7910232A Expired GB2018696B (en) 1978-03-23 1979-03-23 Hydraulic synchronising systems

Country Status (8)

Country Link
AT (1) AT366329B (en)
BE (1) BE875063A (en)
CH (1) CH627694A5 (en)
DE (1) DE2814976C3 (en)
ES (1) ES478464A1 (en)
FR (1) FR2420466A1 (en)
GB (1) GB2018696B (en)
SE (1) SE443751B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1029764A3 (en) * 1999-02-19 2001-07-25 Siemens SGP Verkehrstechnik GmbH Suspension for a railway vehicle
WO2006131407A1 (en) * 2005-06-09 2006-12-14 Siemens Aktiengesellschaft Passive hydraulic controller with positional correction by means of a directionally-controlled exchange of oil

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH553680A (en) * 1972-07-07 1974-09-13 Schweizerische Lokomotiv RAIL VEHICLE WITH BOGIES.
US3835787A (en) * 1972-11-24 1974-09-17 Gen Motors Corp Railway truck positioning apparatus
CH581040A5 (en) * 1974-07-25 1976-10-29 Schweizerische Lokomotiv
DE2631479A1 (en) * 1976-07-13 1978-01-19 Transform Verstaerkungsmasch WORKING PISTON DEVICE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1029764A3 (en) * 1999-02-19 2001-07-25 Siemens SGP Verkehrstechnik GmbH Suspension for a railway vehicle
WO2006131407A1 (en) * 2005-06-09 2006-12-14 Siemens Aktiengesellschaft Passive hydraulic controller with positional correction by means of a directionally-controlled exchange of oil

Also Published As

Publication number Publication date
FR2420466B1 (en) 1982-08-20
GB2018696B (en) 1982-10-20
SE7902452L (en) 1979-09-24
ATA116279A (en) 1981-08-15
DE2814976A1 (en) 1979-10-04
ES478464A1 (en) 1979-06-01
SE443751B (en) 1986-03-10
DE2814976B2 (en) 1981-04-16
BE875063A (en) 1979-09-24
AT366329B (en) 1982-04-13
FR2420466A1 (en) 1979-10-19
DE2814976C3 (en) 1981-12-17
CH627694A5 (en) 1982-01-29

Similar Documents

Publication Publication Date Title
GB1235536A (en) Improvements in or relating to vehicle shock absorbers
US2720755A (en) Power transmission
US4125059A (en) Fluid pressure operable servo positioner
KR890014373A (en) Control device of double acting hydraulic jack
US3579989A (en) Linear self-synchronizing master-slave hydraulic remote control device
SE8106632L (en) HYDRAULIC CONTROL SYSTEM
US3030930A (en) Hydraulic device for interlocking two hydraulic piston-cylinder units
US3927602A (en) Pressure follow-up control system for servo steering gears or similar devices
GB2018696A (en) Hydraulic synchronising systems
SE8107330L (en) DEVICE IN A VEHICLE CHARGE TO PREVENT MULTIPLE EXCHANGE HACK
EP3401271A1 (en) Variable adjustable event of a fault damper for a lifting device and lifting device
FR2425566A1 (en) Multiple position rail vehicle speed controller - has pistons in cylinder operated by bistable pressure sensitive valves for progressive movement
US3063425A (en) Hydraulically operated control system
DK78291D0 (en) POSITION INDICATOR FOR A HYDRAULIC ADJUSTMENT ENGINE
US2972865A (en) Fluid pressure take-up
US3046945A (en) Hydraulic control apparatus for aircraft flight control apparatus
US3404605A (en) System for controlling hydraulic servomotors
GB2057604A (en) Hydrostatic Operating System for Gear-change Boxes
US3838627A (en) Hydraulic positional control system
JPS54156985A (en) Safety device of hydraulic circuit having a plurality of actuators
GB2006362A (en) Automatic Control System for an Actuating Element
SE7709272L (en) TWO-COURT CONTROL SYSTEM FOR VEHICLES
JPH0446203A (en) Actuator controller
SU716907A1 (en) Hydraulic steering gear
SU1025924A1 (en) Pneumatic hydrauilic servo drive

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee