DE59508878D1 - Hydraulic stepped piston arrangement and its application in a drive with a variable thrust - Google Patents

Hydraulic stepped piston arrangement and its application in a drive with a variable thrust

Info

Publication number
DE59508878D1
DE59508878D1 DE59508878T DE59508878T DE59508878D1 DE 59508878 D1 DE59508878 D1 DE 59508878D1 DE 59508878 T DE59508878 T DE 59508878T DE 59508878 T DE59508878 T DE 59508878T DE 59508878 D1 DE59508878 D1 DE 59508878D1
Authority
DE
Germany
Prior art keywords
drive
application
piston arrangement
stepped piston
variable thrust
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 - Lifetime
Application number
DE59508878T
Other languages
German (de)
Inventor
Alfred Franz Wunder
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.)
Wartsila NSD Schweiz AG
Original Assignee
Wartsila NSD Schweiz AG
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 Wartsila NSD Schweiz AG filed Critical Wartsila NSD Schweiz AG
Application granted granted Critical
Publication of DE59508878D1 publication Critical patent/DE59508878D1/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
    • 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
    • F15B15/17—Characterised by the construction of the motor unit of the straight-cylinder type of differential-piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Valve Device For Special Equipments (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
DE59508878T 1995-04-18 1995-04-18 Hydraulic stepped piston arrangement and its application in a drive with a variable thrust Expired - Lifetime DE59508878D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95810254A EP0738826B1 (en) 1995-04-18 1995-04-18 Hydraulic device with differential pistons and its application to a varible thrust drive

Publications (1)

Publication Number Publication Date
DE59508878D1 true DE59508878D1 (en) 2001-01-04

Family

ID=8221731

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59508878T Expired - Lifetime DE59508878D1 (en) 1995-04-18 1995-04-18 Hydraulic stepped piston arrangement and its application in a drive with a variable thrust

Country Status (6)

Country Link
EP (1) EP0738826B1 (en)
JP (1) JP4164132B2 (en)
KR (1) KR100380568B1 (en)
CN (1) CN1088150C (en)
DE (1) DE59508878D1 (en)
DK (1) DK0738826T3 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7178489B2 (en) 2003-03-24 2007-02-20 Yokohama Tlo Company, Ltd. Variable valve system of internal combustion engine and hydraulic actuator
KR101081289B1 (en) * 2004-01-29 2011-11-09 오티스 엘리베이터 컴파니 Brake apparatus for an elevator system
JP5965926B2 (en) * 2012-02-10 2016-08-10 株式会社愛康 Working fluid supply device and fluid supply system
FI124350B (en) * 2012-03-09 2014-07-15 Wärtsilä Finland Oy Hydraulic actuator
WO2016079251A1 (en) * 2014-11-21 2016-05-26 Des S.R.L. Fluid flow rate multiplier
CN105715610B (en) * 2016-03-23 2017-12-19 浙江工业大学 A kind of method detected using pulling and pressing integrated machine Special cylinder
CN106370519B (en) * 2016-10-13 2018-06-12 苏州大学 Biologic soft tissue Micromechanics characteristic tester
CN106553378B (en) * 2016-11-22 2018-07-27 广东三合液压有限公司 The electrichydraulic control press of steady pressure is provided
WO2019145596A1 (en) * 2018-01-26 2019-08-01 Wärtsilä Finland Oy A safety actuator, a safety actuator assembly and a reciprocating internal combustion piston engine having such a safety actuator assembly
KR102531495B1 (en) * 2018-09-13 2023-05-11 에스엠시 가부시키가이샤 fluid pressure cylinder
CN110907290A (en) * 2019-12-06 2020-03-24 中国科学院武汉岩土力学研究所 Single-direction uniform force applying device under action of eccentric load and shear testing machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1321539A (en) * 1962-02-07 1963-03-22 Soc Es Energie Sa Improvements made to internal combustion engines, in particular free-piston machines, injecting gaseous fuel
FR1361178A (en) * 1963-06-27 1964-05-15 Mitsubishi Shipbuilding & Eng Quick valve control device in an internal combustion engine
DK148757C (en) * 1981-09-22 1986-02-17 B & W Diesel As EXHAUST VALVE FOR A Piston Incinerator
JPS58170809A (en) * 1982-03-31 1983-10-07 Toyota Motor Corp Suction and exhaust valves driving device
JPS6040711A (en) * 1983-08-12 1985-03-04 Yanmar Diesel Engine Co Ltd Valve mechanism
JPS6085209A (en) * 1983-10-17 1985-05-14 Kawasaki Heavy Ind Ltd Valve driving device for diesel engine
JPH0640711A (en) * 1992-07-21 1994-02-15 Mitsui Toatsu Chem Inc Production of carbon containing composition
JPH0685209A (en) * 1992-08-31 1994-03-25 Fujitsu Ltd Semiconductor memory device

Also Published As

Publication number Publication date
CN1144299A (en) 1997-03-05
JP4164132B2 (en) 2008-10-08
EP0738826B1 (en) 2000-11-29
DK0738826T3 (en) 2000-12-27
CN1088150C (en) 2002-07-24
KR100380568B1 (en) 2003-07-18
EP0738826A1 (en) 1996-10-23
JPH08284905A (en) 1996-11-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition