FR2017998A1 - - Google Patents

Info

Publication number
FR2017998A1
FR2017998A1 FR6925762A FR6925762A FR2017998A1 FR 2017998 A1 FR2017998 A1 FR 2017998A1 FR 6925762 A FR6925762 A FR 6925762A FR 6925762 A FR6925762 A FR 6925762A FR 2017998 A1 FR2017998 A1 FR 2017998A1
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.)
Withdrawn
Application number
FR6925762A
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.)
Schaeffler Schweiz GmbH
Original Assignee
Hydrel 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 Hydrel AG filed Critical Hydrel AG
Publication of FR2017998A1 publication Critical patent/FR2017998A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/027—Driving main working members reciprocating members
    • B23Q5/033—Driving main working members reciprocating members driven essentially by fluid pressure
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/47—Automatic regulation in accordance with output requirements for achieving a target output speed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S60/00—Power plants
    • Y10S60/911—Fluid motor system incorporating electrical system

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Types And Forms Of Lifts (AREA)
  • Control Of Fluid Gearings (AREA)
FR6925762A 1968-09-10 1969-07-28 Withdrawn FR2017998A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1369068A CH477630A (de) 1968-09-10 1968-09-10 Mindestens angenähert lastunabhängige Genauigkeitsumsteuerung an einem hydraulischen Leistungsantrieb für Wechselbewegungen eines Arbeitsorganes, beispielsweise bei Werkzeugmaschinen und Aufzügen

Publications (1)

Publication Number Publication Date
FR2017998A1 true FR2017998A1 (fr) 1970-05-29

Family

ID=4394507

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6925762A Withdrawn FR2017998A1 (fr) 1968-09-10 1969-07-28

Country Status (8)

Country Link
US (1) US3593519A (fr)
JP (1) JPS4945669B1 (fr)
AT (1) AT293820B (fr)
CH (1) CH477630A (fr)
DE (1) DE6918885U (fr)
FR (1) FR2017998A1 (fr)
GB (1) GB1229537A (fr)
SE (1) SE370892B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133061U (fr) * 1974-08-30 1976-03-11
DE3710028A1 (de) * 1987-03-27 1988-10-06 Delmag Maschinenfabrik Druckmittelbetriebene antriebseinrichtung
DE3853344T2 (de) * 1987-11-28 1995-11-09 Hitachi Construction Machinery Sicherheitsvorrichtung für einen geschlossenen hydraulischen Kreislauf.
US6145312A (en) 1998-12-30 2000-11-14 Hydro-Gear Limited Partnership Electro-mechanical bypass for hydrostatic transmission
US7275371B1 (en) 1998-12-30 2007-10-02 Hydro-Gear Limited Patnership Bypass for a hydraulic device
US6735943B1 (en) 1998-12-30 2004-05-18 Hydro-Gear Limited Partnership Bypass for a hydraulic device
US7007467B1 (en) * 1998-12-30 2006-03-07 Hydro-Gear Limited Partnership Bypass for a hydraulic device
US6430923B1 (en) * 2000-08-18 2002-08-13 Sauer-Danfoss Inc. Loop flushing circuit
US6672843B1 (en) * 2002-04-08 2004-01-06 Hydro-Gear Limited Partnership Dual pump apparatus comprising dual drive shafts and auxiliary pump
US6953327B1 (en) 2003-03-11 2005-10-11 Hydro-Gear Limited Partnership Dual pump
US20040187491A1 (en) * 2003-03-26 2004-09-30 Whitaker James S. Pump with hot oil shuttle valve
US8205444B2 (en) * 2008-10-21 2012-06-26 Caterpillar Inc. Hydrostatic pump and motor with improved torque reversal characteristics

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1948951A (en) * 1929-08-21 1934-02-27 Walker Brooks Hydraulic power unit
US2299686A (en) * 1940-01-15 1942-10-20 Hydraulic Dev Corp Inc Hydraulic press
US2324727A (en) * 1941-01-10 1943-07-20 Vickers Inc Power transmission
US2419563A (en) * 1942-12-11 1947-04-29 Hydraulic Dev Corp Inc Hydraulic press for stepwise drawing of metal
US2388369A (en) * 1944-10-30 1945-11-06 Shendrick Constantine Fluid control valve

Also Published As

Publication number Publication date
SE370892B (fr) 1974-11-04
US3593519A (en) 1971-07-20
CH477630A (de) 1969-08-31
DE1923740B2 (de) 1972-09-21
DE6918885U (de) 1974-01-17
JPS4945669B1 (fr) 1974-12-05
DE1923740A1 (de) 1970-03-19
AT293820B (de) 1971-10-25
GB1229537A (fr) 1971-04-21

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Legal Events

Date Code Title Description
ST Notification of lapse