EP3460260A4 - Linear hydraulic actuator - Google Patents

Linear hydraulic actuator Download PDF

Info

Publication number
EP3460260A4
EP3460260A4 EP17799570.1A EP17799570A EP3460260A4 EP 3460260 A4 EP3460260 A4 EP 3460260A4 EP 17799570 A EP17799570 A EP 17799570A EP 3460260 A4 EP3460260 A4 EP 3460260A4
Authority
EP
European Patent Office
Prior art keywords
hydraulic actuator
linear hydraulic
linear
actuator
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.)
Withdrawn
Application number
EP17799570.1A
Other languages
German (de)
French (fr)
Other versions
EP3460260A1 (en
Inventor
Sung Moo Ryu
Jeong Whan Moon
Chae Hyeuk LEE
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.)
Knr Systems Inc
Original Assignee
Knr Systems Inc
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 Knr Systems Inc filed Critical Knr Systems Inc
Publication of EP3460260A1 publication Critical patent/EP3460260A1/en
Publication of EP3460260A4 publication Critical patent/EP3460260A4/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/04—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member with oscillating 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
    • 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
    • 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
    • F15B15/1428—Cylinders
    • 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
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
    • 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
    • F15B15/1433—End caps
    • 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
    • F15B15/1457—Piston rods
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
EP17799570.1A 2016-05-20 2017-04-14 Linear hydraulic actuator Withdrawn EP3460260A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160061843A KR101768620B1 (en) 2016-05-20 2016-05-20 The linear hydraulic actuator
PCT/KR2017/004051 WO2017200212A1 (en) 2016-05-20 2017-04-14 Linear hydraulic actuator

Publications (2)

Publication Number Publication Date
EP3460260A1 EP3460260A1 (en) 2019-03-27
EP3460260A4 true EP3460260A4 (en) 2019-12-11

Family

ID=59753151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17799570.1A Withdrawn EP3460260A4 (en) 2016-05-20 2017-04-14 Linear hydraulic actuator

Country Status (3)

Country Link
EP (1) EP3460260A4 (en)
KR (1) KR101768620B1 (en)
WO (1) WO2017200212A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11187206B2 (en) * 2017-10-17 2021-11-30 Vestas Wind Systems A/S Pitch system for a wind turbine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4718330A (en) * 1982-01-18 1988-01-12 Eltra Corporation Hydraulic cylinder
JPH01148105U (en) * 1988-04-01 1989-10-13
DE9411004U1 (en) * 1994-06-22 1994-08-18 Blüthgen, Wilfried, Dipl.-Ing., 38102 Braunschweig Machine with a lever that can be hydraulically changed in length and swiveled around a piston pin
EP1148253A2 (en) * 2000-03-23 2001-10-24 Hoerbiger Hydraulik GmbH Actuating device for movable parts of automotive vehicles
DE202007005803U1 (en) * 2007-04-19 2007-09-20 Berends, Reiner Cylinder media supply by means of ball rotary feedthrough and double cylinder tube

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2989461B2 (en) * 1994-01-24 1999-12-13 三菱重工業株式会社 jack
SE510463C2 (en) * 1996-11-26 1999-05-25 Pos Line Ab Method and apparatus for eliminating piston rod rust when starting a pneumatic motor
KR100488207B1 (en) * 1998-06-15 2005-07-07 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Connection structure of boom and arm of heavy equipment
JP4525155B2 (en) * 2004-04-26 2010-08-18 Ｓｍｃ株式会社 Linear actuator
US8715132B2 (en) * 2010-12-31 2014-05-06 Woodward Hrt, Inc. Linear actuator and method of operation thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4718330A (en) * 1982-01-18 1988-01-12 Eltra Corporation Hydraulic cylinder
JPH01148105U (en) * 1988-04-01 1989-10-13
DE9411004U1 (en) * 1994-06-22 1994-08-18 Blüthgen, Wilfried, Dipl.-Ing., 38102 Braunschweig Machine with a lever that can be hydraulically changed in length and swiveled around a piston pin
EP1148253A2 (en) * 2000-03-23 2001-10-24 Hoerbiger Hydraulik GmbH Actuating device for movable parts of automotive vehicles
DE202007005803U1 (en) * 2007-04-19 2007-09-20 Berends, Reiner Cylinder media supply by means of ball rotary feedthrough and double cylinder tube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017200212A1 *

Also Published As

Publication number Publication date
WO2017200212A1 (en) 2017-11-23
KR101768620B1 (en) 2017-08-17
EP3460260A1 (en) 2019-03-27

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