FR2252208A1 - - Google Patents

Info

Publication number
FR2252208A1
FR2252208A1 FR7438331A FR7438331A FR2252208A1 FR 2252208 A1 FR2252208 A1 FR 2252208A1 FR 7438331 A FR7438331 A FR 7438331A FR 7438331 A FR7438331 A FR 7438331A FR 2252208 A1 FR2252208 A1 FR 2252208A1
Authority
FR
France
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
FR7438331A
Other versions
FR2252208B1 (fr
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.)
Ruthner Industrieanlagen AG
Original Assignee
Ruthner Industrieanlagen 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
Priority claimed from AT980673A external-priority patent/AT328296B/de
Application filed by Ruthner Industrieanlagen AG filed Critical Ruthner Industrieanlagen AG
Publication of FR2252208A1 publication Critical patent/FR2252208A1/fr
Application granted granted Critical
Publication of FR2252208B1 publication Critical patent/FR2252208B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B21J9/12—Drives for forging presses operated by hydraulic or liquid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B21J9/20—Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/007—Reciprocating-piston liquid engines with single cylinder, double-acting piston
    • F03C1/0073—Reciprocating-piston liquid engines with single cylinder, double-acting piston one side of the double-acting piston being always under the influence of the liquid under 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
    • F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Presses (AREA)
  • Press Drives And Press Lines (AREA)
FR7438331A 1973-11-22 1974-11-21 Expired FR2252208B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT980673A AT328296B (de) 1973-11-22 1973-11-22 Steuerung fur hydraulische pressen mit mehreren presskolben
US05/561,214 US3945206A (en) 1973-11-22 1975-03-24 Control system for hydraulic presses comprising a plurality of press rams

Publications (2)

Publication Number Publication Date
FR2252208A1 true FR2252208A1 (fr) 1975-06-20
FR2252208B1 FR2252208B1 (fr) 1978-04-14

Family

ID=25605772

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7438331A Expired FR2252208B1 (fr) 1973-11-22 1974-11-21

Country Status (2)

Country Link
US (1) US3945206A (fr)
FR (1) FR2252208B1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2274853A1 (fr) * 1974-06-14 1976-01-09 Messier Hispano Sa Dispositif autonome pour commander a distance l'ouverture et la fermeture de vannes a mouvement rotatif
JPS57197334A (en) * 1981-05-26 1982-12-03 Komatsu Ltd Electric oil pressure controller for construction vehicle
DE3611212C1 (de) * 1986-04-04 1987-06-11 Ernst Dipl-Ing Korthaus Steuerung fuer Hydraulikzylinder als Antriebe fuer Kolbenpumpen
DE4407739C1 (de) * 1994-03-08 1995-07-20 Daimler Benz Ag Betätigungssystem für über Schaltmittel ansteuerbare hydraulische Antriebselemente eines Klappverdecks
JP3474840B2 (ja) 2000-09-11 2003-12-08 株式会社南武 油圧シリンダの増圧装置
ATE276442T1 (de) * 2001-04-06 2004-10-15 Sig Simonazzi Spa Hydraulisches druckbeaufschlagungssystem
CN100482952C (zh) * 2007-10-17 2009-04-29 中南大学 液压机连续增压系统
US10352291B2 (en) * 2008-07-07 2019-07-16 Oscilla Power, Inc. Power take off system for wave energy convertor
CN101947619A (zh) * 2010-09-06 2011-01-19 孙学军 一种水压数控锻锤、水压数控锻造装置及水压数控锻造方法
DE102011088594A1 (de) * 2011-12-14 2013-06-20 Robert Bosch Gmbh Druckübersetzer, Verfahren zum Betreiben eines Druckübersetzers sowie Verwendung eines Druckübersetzers
CN102897687A (zh) * 2012-09-27 2013-01-30 浙江大学 一种升降平台纯水液压驱动系统
CN104353770B (zh) * 2014-10-23 2016-03-23 湖南明诚机械制造有限公司 液压锤桩机高频锤桩液压系统及其打锤插装阀
US10786844B2 (en) * 2016-06-22 2020-09-29 Myron Milo Oakley Balanced panel punch drive system
CN111120427B (zh) * 2020-02-22 2021-07-06 宁波真格液压科技有限公司 一种双柱塞增压器
CN112228418B (zh) * 2020-11-26 2022-09-02 太重集团榆次液压工业(济南)有限公司 一种基于容积控制的液压同步系统及控制方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1953454A (en) * 1932-07-05 1934-04-03 Oilgear Co Electrode control
US2329709A (en) * 1940-11-23 1943-09-21 Chicago Pneumatic Tool Co Hydraulic riveter
US2803110A (en) * 1953-06-11 1957-08-20 Keelavite Co Ltd Hydraulic power drive for reciprocating members

Also Published As

Publication number Publication date
US3945206A (en) 1976-03-23
FR2252208B1 (fr) 1978-04-14

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Legal Events

Date Code Title Description
ST Notification of lapse