EP0778191A3 - Device for simultaneous application of force by hydraulic actuators arranged in series - Google Patents

Device for simultaneous application of force by hydraulic actuators arranged in series Download PDF

Info

Publication number
EP0778191A3
EP0778191A3 EP96440107A EP96440107A EP0778191A3 EP 0778191 A3 EP0778191 A3 EP 0778191A3 EP 96440107 A EP96440107 A EP 96440107A EP 96440107 A EP96440107 A EP 96440107A EP 0778191 A3 EP0778191 A3 EP 0778191A3
Authority
EP
European Patent Office
Prior art keywords
force
simultaneous application
series
setting devices
hydraulic
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
EP96440107A
Other languages
German (de)
French (fr)
Other versions
EP0778191A2 (en
EP0778191B1 (en
Inventor
Kurt Vogelgsang
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel CIT SA
Alcatel SA
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 Alcatel CIT SA, Alcatel SA filed Critical Alcatel CIT SA
Publication of EP0778191A2 publication Critical patent/EP0778191A2/en
Publication of EP0778191A3 publication Critical patent/EP0778191A3/en
Application granted granted Critical
Publication of EP0778191B1 publication Critical patent/EP0778191B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/045—Compensating for variations in viscosity or temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/04—Fluid-pressure devices for operating points or scotch-blocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The force application device has a hydraulic pressure distribution system with a pump (P), a hydraulic fluid reservoirs (FB) and hydraulic setting devices (Z1,Z2), for simultaneous application of a given force at a number of spaced points (P1,P2). A controlled valve (V3), which is open when the device is inoperative, couples the intermediate line (L3) between successive setting devices to the hydraulic fluid reservoir for preventing uncontrolled movement of the setting devices caused by temperature-dependent pressure fluctuations.
EP96440107A 1995-12-08 1996-12-06 Device for simultaneous application of force by hydraulic actuators arranged in series Expired - Lifetime EP0778191B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19545784A DE19545784A1 (en) 1995-12-08 1995-12-08 Device for the simultaneous application of force by means of hydraulically connected hydraulic actuating units
DE19545784 1995-12-08

Publications (3)

Publication Number Publication Date
EP0778191A2 EP0778191A2 (en) 1997-06-11
EP0778191A3 true EP0778191A3 (en) 1999-05-19
EP0778191B1 EP0778191B1 (en) 2002-07-24

Family

ID=7779521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96440107A Expired - Lifetime EP0778191B1 (en) 1995-12-08 1996-12-06 Device for simultaneous application of force by hydraulic actuators arranged in series

Country Status (3)

Country Link
EP (1) EP0778191B1 (en)
AT (1) ATE221012T1 (en)
DE (2) DE19545784A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407369B (en) * 1998-04-07 2001-02-26 Vae Ag DEVICE FOR ADJUSTING THE MOVABLE PARTS OF RAILS OR CROSSINGS
AT5757U1 (en) * 2001-07-31 2002-11-25 Vae Eisenbahnsysteme Gmbh DEVICE FOR MOVING SWITCHES
ITMI20061647A1 (en) * 2006-08-28 2008-02-29 Gen Electric HYDRAULIC ENGINE FOR RAILWAY EXCHANGES
CZ21157U1 (en) * 2010-04-14 2010-08-09 DT-VÝHYBKÁRNA A STROJÍRNA, a.s. Lock system hydraulic device with parallel connected hydraulic cylinders in rail-switches

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433123A (en) * 1967-09-28 1969-03-18 Hastings Dynamold Corp Hydraulic drive system
FR2066300A5 (en) * 1969-10-21 1971-08-06 Int Standard Electric Corp
US4428552A (en) * 1981-05-04 1984-01-31 Abex Corporation Railroad switch machine
EP0480303A2 (en) * 1990-10-10 1992-04-15 SASIB S.p.A. Operating device for railway switches, particularly for high-speed lines
EP0542127A1 (en) * 1991-11-09 1993-05-19 BWG Butzbacher Weichenbau GmbH Method for setting a first rail towards a second rail
EP0559474A1 (en) * 1992-03-06 1993-09-08 Monarch Hydraulics, Inc. Desk having self-releveling height adjustment and hydraulic circuit for it

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1004924B (en) * 1952-01-25 1957-03-21 Anton Joseph Van Broekhoven Hydraulic press or scissors with parallel guidance of the press beam
DE2144564A1 (en) * 1971-09-06 1973-03-15 Siemens Ag TURNOUT SYSTEM FOR RAILWAY SYSTEMS WITH SLIM SWITCHES
FR2271098A2 (en) * 1973-10-26 1975-12-12 Theissen Jacques Railway points actuation mechanism - has four-way distributor/reverser valves between pump and actuating rams
IN147860B (en) * 1977-02-03 1980-07-26 Westinghouse Brake & Signal

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433123A (en) * 1967-09-28 1969-03-18 Hastings Dynamold Corp Hydraulic drive system
FR2066300A5 (en) * 1969-10-21 1971-08-06 Int Standard Electric Corp
US4428552A (en) * 1981-05-04 1984-01-31 Abex Corporation Railroad switch machine
EP0480303A2 (en) * 1990-10-10 1992-04-15 SASIB S.p.A. Operating device for railway switches, particularly for high-speed lines
EP0542127A1 (en) * 1991-11-09 1993-05-19 BWG Butzbacher Weichenbau GmbH Method for setting a first rail towards a second rail
EP0559474A1 (en) * 1992-03-06 1993-09-08 Monarch Hydraulics, Inc. Desk having self-releveling height adjustment and hydraulic circuit for it

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"GRUNDLAGEN DER HYDRAULISCHEN SCHALTUNGSTECHNIK", OLHYDRAULIK UND PNEUMATIK, vol. 37, no. 11/12, 1 November 1993 (1993-11-01), pages 830 - 832, 835, XP000413834 *

Also Published As

Publication number Publication date
EP0778191A2 (en) 1997-06-11
DE59609478D1 (en) 2002-08-29
DE19545784A1 (en) 1997-06-12
EP0778191B1 (en) 2002-07-24
ATE221012T1 (en) 2002-08-15

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