EP1843048A3 - Fluid cylinder assembly - Google Patents

Fluid cylinder assembly Download PDF

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Publication number
EP1843048A3
EP1843048A3 EP07006623A EP07006623A EP1843048A3 EP 1843048 A3 EP1843048 A3 EP 1843048A3 EP 07006623 A EP07006623 A EP 07006623A EP 07006623 A EP07006623 A EP 07006623A EP 1843048 A3 EP1843048 A3 EP 1843048A3
Authority
EP
European Patent Office
Prior art keywords
working chamber
cylinder
piston
facing
fluid cylinder
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
EP07006623A
Other languages
German (de)
French (fr)
Other versions
EP1843048A2 (en
EP1843048B1 (en
Inventor
Leopold Ing. Reisinger
Johann Ing. Schmollngruber
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.)
Weber Hydraulik GmbH Austria
Original Assignee
Weber Hydraulik GmbH Austria
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 Weber Hydraulik GmbH Austria filed Critical Weber Hydraulik GmbH Austria
Publication of EP1843048A2 publication Critical patent/EP1843048A2/en
Publication of EP1843048A3 publication Critical patent/EP1843048A3/en
Application granted granted Critical
Publication of EP1843048B1 publication Critical patent/EP1843048B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • 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
    • F15B11/003—Systems with load-holding valves
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1466—Hollow piston sliding over a stationary rod inside the cylinder
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

Die Erfindung beschreibt einen Fluidzylinder (1), umfassend eine in einem Zylinder (3) geführte Kolbenanordnung (5), wobei durch eine einem Zylinderboden (7) zugewandte erste Kolbenfläche (22) der Kolbenanordnung (5) und eine Zylinderinnenwand (21) eine erste Arbeitskammer (10) begrenzt ist und durch eine einem Zylinderdeckel (8) zugewandte zweite Kolbenfläche (25) der Kolbenanordnung (5) und die Zylinderinnenwand (21) eine zweite Arbeitskammer (11) begrenzt ist. In der Kolbenanordnung (5) bildet ein Hohlraum (13) mit einer dem Zylinderboden (7) zugewandten Öffnung (14) eine dritte Arbeitskammer (20), die über ein relativ zum Zylinder (3) feststehendes Kolbenrohr (16) mit einem dritten Leitungsanschluss (32) fluidverbunden ist, wobei ein Endabschnitt (17) des Kolbenrohres (16) durch die erste Arbeitskammer (10) geführt ist und durch die Öffnung (14) in die dritte Arbeitskammer (20) ragt und die dritte Arbeitskammer (20) gegen die erste Arbeitskammer (10) abgedichtet ist und wie die erste und die zweite Arbeitskammer einen eigenen Leitungsanschluss aufweist.

Figure imgaf001
The invention relates to a fluid cylinder (1), comprising a piston arrangement (5) guided in a cylinder (3), wherein a first piston surface (22) of the piston arrangement (5) facing toward a cylinder bottom (7) and a cylinder inner wall (21) form a first Working chamber (10) is limited and by a cylinder cover (8) facing the second piston surface (25) of the piston assembly (5) and the cylinder inner wall (21) a second working chamber (11) is limited. In the piston arrangement (5), a cavity (13) with an opening (14) facing the cylinder bottom (7) forms a third working chamber (20) which has a piston tube (16) with a third conduit connection (16) fixed relative to the cylinder (3). 32) is fluidly connected, wherein an end portion (17) of the piston tube (16) through the first working chamber (10) and through the opening (14) in the third working chamber (20) protrudes and the third working chamber (20) against the first Working chamber (10) is sealed and how the first and the second working chamber has its own line connection.
Figure imgaf001
EP20070006623 2006-04-07 2007-03-30 Fluid cylinder assembly Active EP1843048B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT6082006A AT503408B1 (en) 2006-04-07 2006-04-07 FLUID CYLINDER ARRANGEMENT

Publications (3)

Publication Number Publication Date
EP1843048A2 EP1843048A2 (en) 2007-10-10
EP1843048A3 true EP1843048A3 (en) 2008-07-09
EP1843048B1 EP1843048B1 (en) 2010-07-14

Family

ID=38226480

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070006623 Active EP1843048B1 (en) 2006-04-07 2007-03-30 Fluid cylinder assembly

Country Status (3)

Country Link
EP (1) EP1843048B1 (en)
AT (1) AT503408B1 (en)
DE (1) DE502007004365D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9435359B2 (en) 2012-02-13 2016-09-06 Schlumberger Technology Corporation Adaptive hydraulic cylinder with floating seal interface
CN103357671B (en) * 2012-03-26 2015-06-17 苏州泰克诺机电有限公司 Hydraulic system with pressure and flow adjustable in closed loop
US10246951B2 (en) 2014-02-06 2019-04-02 Ensign Drilling Inc. Hydraulic multi-displacement hoisting cylinder system
RU2665762C2 (en) * 2016-08-11 2018-09-04 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" Hydraulic drive
CN108999836B (en) * 2018-09-30 2024-05-24 中船重庆液压机电有限公司 Piston rod oil inlet double-acting multistage hydraulic cylinder

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858485A (en) * 1971-01-27 1975-01-07 Borje O Rosaen Fluid cylinder
US5090296A (en) * 1991-01-09 1992-02-25 Todd Motion Controls Inc. Piston assembly and method
DE4405938A1 (en) * 1994-02-24 1995-08-31 Werner Prof Dr Ing Moeller Piston cylinder unit for fluid pressure media
DE19543876A1 (en) * 1995-11-24 1997-05-28 Rexroth Mannesmann Gmbh Method and device for controlling a hydraulic system of an implement
US20040159514A1 (en) * 1999-08-10 2004-08-19 Lars Dernebo Arrangement for a piston and cylinder device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU561812A1 (en) * 1975-09-08 1977-06-15 Всесоюзный Научно-Исследовательский Институт Резинотехнического Машиностроения Hydraulic cylinder speed control system
DE3140266A1 (en) * 1981-10-10 1983-04-28 Mannesmann Rexroth GmbH, 8770 Lohr "DEVICE FOR CONTROLLING A HYDROMOTOR"
JPS58501833A (en) * 1981-11-03 1983-10-27 トウモ−タ−　コ−ポレ−シヨン lock valve
DE3807669A1 (en) 1988-03-09 1989-09-21 Andexser Lucie Working cylinder which can be locked in a continuously adjustable manner
AT4094U1 (en) 1999-12-07 2001-01-25 Weber Hydraulik Gmbh LINEAR ACTUATOR
DE10108257B4 (en) * 2001-02-21 2009-04-30 Kreato-Fertigungstechnik Gmbh hydraulic cylinders
US20050066655A1 (en) * 2003-09-26 2005-03-31 Aarestad Robert A. Cylinder with internal pushrod

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858485A (en) * 1971-01-27 1975-01-07 Borje O Rosaen Fluid cylinder
US5090296A (en) * 1991-01-09 1992-02-25 Todd Motion Controls Inc. Piston assembly and method
DE4405938A1 (en) * 1994-02-24 1995-08-31 Werner Prof Dr Ing Moeller Piston cylinder unit for fluid pressure media
DE19543876A1 (en) * 1995-11-24 1997-05-28 Rexroth Mannesmann Gmbh Method and device for controlling a hydraulic system of an implement
US20040159514A1 (en) * 1999-08-10 2004-08-19 Lars Dernebo Arrangement for a piston and cylinder device

Also Published As

Publication number Publication date
EP1843048A2 (en) 2007-10-10
EP1843048B1 (en) 2010-07-14
AT503408A1 (en) 2007-10-15
AT503408B1 (en) 2008-06-15
DE502007004365D1 (en) 2010-08-26

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