AU2001250433A1 - A hydraulic arrangement and a damper adapted thereto - Google Patents

A hydraulic arrangement and a damper adapted thereto

Info

Publication number
AU2001250433A1
AU2001250433A1 AU2001250433A AU5043301A AU2001250433A1 AU 2001250433 A1 AU2001250433 A1 AU 2001250433A1 AU 2001250433 A AU2001250433 A AU 2001250433A AU 5043301 A AU5043301 A AU 5043301A AU 2001250433 A1 AU2001250433 A1 AU 2001250433A1
Authority
AU
Australia
Prior art keywords
piston
cylinder
hydraulic
hydraulic arrangement
space
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.)
Abandoned
Application number
AU2001250433A
Inventor
Pertti Vilenius
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.)
HYDROLL Oy
Original Assignee
HYDROLL Oy
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 HYDROLL Oy filed Critical HYDROLL Oy
Publication of AU2001250433A1 publication Critical patent/AU2001250433A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/063—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid comprising a hollow piston rod
    • 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
    • F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
    • 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
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/227—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having an auxiliary cushioning piston within the main piston or the cylinder end face
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/08—Sensor arrangement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Damping Devices (AREA)
  • Chairs Characterized By Structure (AREA)
  • Vehicle Body Suspensions (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Lubricants (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

A hydraulic system with an adaptive damper and comprised of a cylinder (1), which has end pieces (6) and (29), further a first cylinder space for hydraulic inlet fluid bordered by the first piston (3) and a second cylinder space for the second inlet hydraulic fluid, bordered by the second piston (4), a first piston (3) moving in the cylinder and one second piston (4) moving in the cylinder (1). First piston (3) is fixed to piston rod (2), and the second piston is arranged to slide in regard to the piston rod, the space between the pistons then being arranged to be pressurized by gas by means of valve (21) and the damper including a device (8, 23, 24) measuring the piston rod position.
AU2001250433A 2000-03-21 2001-03-21 A hydraulic arrangement and a damper adapted thereto Abandoned AU2001250433A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20000656A FI115925B (en) 2000-03-21 2000-03-21 Hydraulic arrangements and dampers that can be arranged for this
FI20000656 2000-03-21
PCT/FI2001/000286 WO2001071197A1 (en) 2000-03-21 2001-03-21 A hydraulic arrangement and a damper adapted thereto

Publications (1)

Publication Number Publication Date
AU2001250433A1 true AU2001250433A1 (en) 2001-10-03

Family

ID=8557989

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001250433A Abandoned AU2001250433A1 (en) 2000-03-21 2001-03-21 A hydraulic arrangement and a damper adapted thereto

Country Status (8)

Country Link
EP (1) EP1272765B1 (en)
AT (1) ATE425371T1 (en)
AU (1) AU2001250433A1 (en)
DE (1) DE60137918D1 (en)
ES (1) ES2324335T3 (en)
FI (1) FI115925B (en)
NO (1) NO326238B1 (en)
WO (1) WO2001071197A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2894303B1 (en) * 2005-12-02 2010-09-03 Pommier S C E B P DAMPING HYDRAULIC CYLINDER
EP2844881A1 (en) * 2012-04-30 2015-03-11 Eaton Corporation Combined hydraulic/pneumatic actuation system with internal pneumatic piston
CN106246790A (en) * 2016-08-26 2016-12-21 常州格林电力机械制造有限公司 Symmetrical expression large hydraulic antivibrator
IT201900001511A1 (en) * 2019-02-01 2020-08-01 Cnh Ind Italia Spa IMPROVED HYDRAULIC CYLINDER FOR WORK VEHICLE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB755078A (en) * 1954-08-31 1956-08-15 Dowty Equipment Ltd Improvements relating to liquid pressure operated jacks
GB2080419B (en) * 1980-07-24 1983-12-14 Ato Inc An adjustable stroke cylinder
GB8815449D0 (en) * 1988-06-29 1988-08-03 Clarke D C Pneumatic cylinder
DE29713825U1 (en) * 1997-08-02 1997-10-02 Festo Kg, 73734 Esslingen Fluid operated cylinder

Also Published As

Publication number Publication date
ES2324335T3 (en) 2009-08-05
NO20024374L (en) 2002-09-13
FI115925B (en) 2005-08-15
WO2001071197A1 (en) 2001-09-27
NO326238B1 (en) 2008-10-20
ATE425371T1 (en) 2009-03-15
NO20024374D0 (en) 2002-09-13
EP1272765A1 (en) 2003-01-08
FI20000656A0 (en) 2000-03-21
FI20000656A (en) 2001-09-22
DE60137918D1 (en) 2009-04-23
EP1272765B1 (en) 2009-03-11

Similar Documents

Publication Publication Date Title
CA2355612A1 (en) Device for continuous regulation of the gas flow rate processed by a reciprocating compressor
CA2643138A1 (en) Hydraulic stepping valve actuated sliding sleeve
ATE538325T1 (en) VIBRATION DAMPER WITH ADJUSTABLE DAMPING POWER
CA2222799A1 (en) Pneumatic spring
DE69617567D1 (en) Freely movable piston valve for hydraulic damper cylinders, especially a single tube damper
SE9504210L (en) Exhaust valve mechanism in an internal combustion engine
MXPA99003183A (en) Telescoping system with multi-stage telescopic cylinder.
CA2004537A1 (en) Hydraulic-pneumatic cylinder device
GB2434130A (en) Improvements to steering mechanisms
TR200100466T2 (en) Hydraulic actuation device of rod inlet pasta of rod casting device
AU2001250433A1 (en) A hydraulic arrangement and a damper adapted thereto
BR9507249A (en) Gas spring arrangement
DE60023509D1 (en) PLACTER FOR POSITIONING A VALVE O.A. IN A DESIRED POSITION
DE60312705D1 (en) MORE PISTON VALVE ACTUATOR
EP0930227A3 (en) Hydro-tilt for an outboard engine
DE50206283D1 (en) Hydraulic control device for the same valves of a diesel engine
SE0301095D0 (en) Gas spring
GB1369540A (en) Ram device
CA2454062A1 (en) A hydraulic circuit for linearly driving a movable roller-holder slider of a pipe bending machine
EP1295042B8 (en) Lifting device
GB2363626A (en) Improved pneumatic valve actuator
ATE145028T1 (en) VALVE CONTROL DEVICE
DE602004003670D1 (en) Compressed gas spring with adjustable stroke in a maximum and an intermediate range
GB846860A (en) Operating mechanism for reciprocating tools