GB2463045B - Internal bypass valve for hydraulic cylinder - Google Patents

Internal bypass valve for hydraulic cylinder

Info

Publication number
GB2463045B
GB2463045B GB0815741A GB0815741A GB2463045B GB 2463045 B GB2463045 B GB 2463045B GB 0815741 A GB0815741 A GB 0815741A GB 0815741 A GB0815741 A GB 0815741A GB 2463045 B GB2463045 B GB 2463045B
Authority
GB
United Kingdom
Prior art keywords
hydraulic cylinder
bypass valve
internal bypass
internal
valve
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 - Fee Related
Application number
GB0815741A
Other versions
GB2463045A (en
GB0815741D0 (en
Inventor
David Eastwood
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.)
Primetals Asset Management UK Ltd
Original Assignee
Siemens VAI Metals Technologies 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 Siemens VAI Metals Technologies Ltd filed Critical Siemens VAI Metals Technologies Ltd
Priority to GB0815741A priority Critical patent/GB2463045B/en
Publication of GB0815741D0 publication Critical patent/GB0815741D0/en
Priority to PCT/GB2009/050864 priority patent/WO2010023466A1/en
Publication of GB2463045A publication Critical patent/GB2463045A/en
Application granted granted Critical
Publication of GB2463045B publication Critical patent/GB2463045B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
    • B23D15/12—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
    • B23D15/14—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor actuated by fluid or gas pressure
    • 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
    • F15B15/1447—Pistons; Piston to piston rod assemblies
    • 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
    • F15B15/202—Externally-operated valves mounted in or on the actuator
    • 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
    • F16F9/103—Devices with one or more members moving linearly to and fro in chambers, any throttling effect being immaterial, i.e. damping by viscous shear effect only
    • 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
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3214—Constructional features of pistons
    • 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
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/3405—Throttling passages in or on piston body, e.g. slots

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shearing Machines (AREA)
GB0815741A 2008-08-29 2008-08-29 Internal bypass valve for hydraulic cylinder Expired - Fee Related GB2463045B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0815741A GB2463045B (en) 2008-08-29 2008-08-29 Internal bypass valve for hydraulic cylinder
PCT/GB2009/050864 WO2010023466A1 (en) 2008-08-29 2009-07-16 Internal Bypass Valve for Hydraulic Cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0815741A GB2463045B (en) 2008-08-29 2008-08-29 Internal bypass valve for hydraulic cylinder

Publications (3)

Publication Number Publication Date
GB0815741D0 GB0815741D0 (en) 2008-10-08
GB2463045A GB2463045A (en) 2010-03-03
GB2463045B true GB2463045B (en) 2011-04-06

Family

ID=39865930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0815741A Expired - Fee Related GB2463045B (en) 2008-08-29 2008-08-29 Internal bypass valve for hydraulic cylinder

Country Status (2)

Country Link
GB (1) GB2463045B (en)
WO (1) WO2010023466A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3028589B1 (en) * 2014-11-14 2018-06-22 Db Industries HYDRAULIC CYLINDER WITH INTERNAL VOLUME TRANSFER

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2092230A (en) * 1981-01-21 1982-08-11 Conway John P Fluid piston device
GB2095332A (en) * 1977-10-11 1982-09-29 Conway John P Fluid operated piston device
US5237916A (en) * 1992-06-18 1993-08-24 John T. Hepburn, Limited Regenerative hydraulic cylinders with internal flow paths
US6079206A (en) * 1996-07-11 2000-06-27 Getrag Getriebe- Und Zahnradfbrik Hermann Hagenmeyer Gmbh & Cie Hydraulic system and a method for degassing same
US6085634A (en) * 1997-01-30 2000-07-11 Dietrich; Otto E. Power steering cylinder assembly
US6298958B1 (en) * 1999-09-21 2001-10-09 Hyundai Motor Company Automatically adjustable damping force shock absorber

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191407328A (en) * 1914-03-23 1915-03-23 South Durham Steel & Iron Comp Improvements in Valves for Hydraulic Shears, or other Hydraulic Power Machines.
FR1365271A (en) * 1962-01-19 1964-07-03 Shear
FR1427144A (en) * 1964-12-21 1966-02-04 Shear refinements

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2095332A (en) * 1977-10-11 1982-09-29 Conway John P Fluid operated piston device
GB2092230A (en) * 1981-01-21 1982-08-11 Conway John P Fluid piston device
US5237916A (en) * 1992-06-18 1993-08-24 John T. Hepburn, Limited Regenerative hydraulic cylinders with internal flow paths
US6079206A (en) * 1996-07-11 2000-06-27 Getrag Getriebe- Und Zahnradfbrik Hermann Hagenmeyer Gmbh & Cie Hydraulic system and a method for degassing same
US6085634A (en) * 1997-01-30 2000-07-11 Dietrich; Otto E. Power steering cylinder assembly
US6298958B1 (en) * 1999-09-21 2001-10-09 Hyundai Motor Company Automatically adjustable damping force shock absorber

Also Published As

Publication number Publication date
GB2463045A (en) 2010-03-03
WO2010023466A1 (en) 2010-03-04
GB0815741D0 (en) 2008-10-08

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Legal Events

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

Effective date: 20120829