DE3812300C1 - - Google Patents

Info

Publication number
DE3812300C1
DE3812300C1 DE3812300A DE3812300A DE3812300C1 DE 3812300 C1 DE3812300 C1 DE 3812300C1 DE 3812300 A DE3812300 A DE 3812300A DE 3812300 A DE3812300 A DE 3812300A DE 3812300 C1 DE3812300 C1 DE 3812300C1
Authority
DE
Germany
Prior art keywords
line
pressure
valve
hydrostatic transmission
transmission according
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
Application number
DE3812300A
Other languages
German (de)
English (en)
Inventor
Arnulf 7900 Ulm De Hoescheler
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.)
Hydromatik 7915 Elchingen De GmbH
Original Assignee
Hydromatik 7915 Elchingen De GmbH
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 Hydromatik 7915 Elchingen De GmbH filed Critical Hydromatik 7915 Elchingen De GmbH
Priority to DE3812300A priority Critical patent/DE3812300C1/de
Application granted granted Critical
Publication of DE3812300C1 publication Critical patent/DE3812300C1/de
Priority to DE58907669T priority patent/DE58907669D1/de
Priority to EP89104312A priority patent/EP0337124B1/de
Priority to US07/324,240 priority patent/US5048295A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16H61/4165—Control of cooling or lubricating
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action ; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or the actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or the actuating force of an output member for controlling the speed
    • F15B11/044—Systems essentially incorporating special features for controlling the speed or the actuating force of an output member for controlling the speed by means in the return line
    • F15B11/0445—Systems essentially incorporating special features for controlling the speed or the actuating force of an output member for controlling the speed by means in the return line with counterbalance valves, e.g. to prevent overrunning or for braking
    • 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
    • F16H61/4035—Control of circuit flow
    • 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
    • F16H61/4078—Fluid exchange between hydrostatic circuits and external sources or consumers
    • F16H61/4096—Fluid exchange between hydrostatic circuits and external sources or consumers with pressure accumulators
    • 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
    • F16H61/4174—Control of venting, e.g. removing trapped air
    • 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
    • F16H61/461—Automatic regulation in accordance with output requirements not involving a variation of the output capacity of the main pumps or motors
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40553—Flow control characterised by the type of flow control means or valve with pressure compensating valves
    • F15B2211/40561—Flow control characterised by the type of flow control means or valve with pressure compensating valves the pressure compensating valve arranged upstream of the flow control means
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40553—Flow control characterised by the type of flow control means or valve with pressure compensating valves
    • F15B2211/40569—Flow control characterised by the type of flow control means or valve with pressure compensating valves the pressure compensating valve arranged downstream of the flow control means
    • 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
    • F15B2211/40—Flow control
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in control
    • 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
    • F15B2211/40—Flow control
    • F15B2211/46—Control of flow in the return line, i.e. meter-out control
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/61—Secondary circuits
    • F15B2211/613—Feeding circuits
    • 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
    • F15B2211/7058—Rotary output members
    • 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
    • F16H61/4043—Control of a bypass valve
    • F16H61/4052—Control of a bypass valve by using a variable restriction, e.g. an orifice valve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Fluid Gearings (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Motor Power Transmission Devices (AREA)
DE3812300A 1988-04-13 1988-04-13 Expired DE3812300C1 (enExample)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE3812300A DE3812300C1 (enExample) 1988-04-13 1988-04-13
DE58907669T DE58907669D1 (de) 1988-04-13 1989-03-10 Hydrostatisches Getriebe.
EP89104312A EP0337124B1 (de) 1988-04-13 1989-03-10 Hydrostatisches Getriebe
US07/324,240 US5048295A (en) 1988-04-13 1989-03-15 Hydrostatic transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3812300A DE3812300C1 (enExample) 1988-04-13 1988-04-13

Publications (1)

Publication Number Publication Date
DE3812300C1 true DE3812300C1 (enExample) 1989-03-02

Family

ID=6351897

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3812300A Expired DE3812300C1 (enExample) 1988-04-13 1988-04-13
DE58907669T Expired - Fee Related DE58907669D1 (de) 1988-04-13 1989-03-10 Hydrostatisches Getriebe.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE58907669T Expired - Fee Related DE58907669D1 (de) 1988-04-13 1989-03-10 Hydrostatisches Getriebe.

Country Status (3)

Country Link
US (1) US5048295A (enExample)
EP (1) EP0337124B1 (enExample)
DE (2) DE3812300C1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10342893A1 (de) * 2003-09-17 2005-05-25 Zf Friedrichshafen Ag Verfahren zur Erwärmung von Öl in einem Getriebeölkreislauf

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5203172A (en) * 1990-05-17 1993-04-20 Simpson Alvin B Electromagnetically powered hydraulic engine
US5170692A (en) * 1991-11-04 1992-12-15 Vickers, Incorporated Hydraulic control system
US5235810A (en) * 1992-09-28 1993-08-17 Tecumseh Products Company Conduit valve providing wide neutral in a hydrostatic transmission
US5355675A (en) * 1993-08-31 1994-10-18 Western Atlas International, Inc. Stabilized speed-control system for a hydrostatic transmission
US5533333A (en) * 1994-04-29 1996-07-09 Atlantic Richfield Company Method and regulator for regulating the air pressure of a pressurized vessel
US5467596A (en) * 1994-11-09 1995-11-21 Applied Power Inc. Unitary electro-hydraulic rotary actuator for automotive convertible top
US6338247B1 (en) * 1998-11-20 2002-01-15 Sauer-Danfoss Inc. System for controlling a hydraulic vehicle drive
US6336325B1 (en) 1999-12-07 2002-01-08 Sauer-Danfoss Inc. Hydrostatic loop dump valve for reducing input torque required by hydrostatic unit
US6382595B1 (en) * 2000-07-26 2002-05-07 Schlumberger Technology Corporation Differential hydrostatic transmission system
US6666655B2 (en) * 2001-05-11 2003-12-23 Delphi Technologies, Inc. Hydraulic pump nozzle and method of use
US20040177610A1 (en) * 2003-03-11 2004-09-16 Hendrickson Barry M. Broad range speed control for hydraulic motors
DE102008061350A1 (de) * 2008-12-10 2010-06-17 Robert Bosch Gmbh Hydrostatisches System mit einem hydropneumatischen Speicher
US20110179781A1 (en) * 2010-01-27 2011-07-28 Charles Leon Fant Hydraulic drive system for use in driven systems
WO2011133072A1 (en) * 2010-04-19 2011-10-27 Parker Hannifin Ab Arrangement for operating a hydraulic device
WO2015034499A1 (en) * 2013-09-05 2015-03-12 Volvo Construction Equipment Ab Hydrostatic transmission for construction vehicle
DE102014209387B3 (de) * 2014-05-16 2015-09-24 Rausch & Pausch Gmbh Hydrauliksystem
DE102014011073B3 (de) * 2014-07-30 2015-11-12 Danfoss Power Solutions Gmbh & Co. Ohg 1Motordrehzahlbegrenzungsvorrichtung
ITUB20150172A1 (it) * 2015-03-04 2016-09-04 Mecc Breganzese S P A Attrezzatura idraulica per escavatori e macchine operatrici in generale
FR3033528B1 (fr) * 2015-03-13 2017-03-31 Poclain Hydraulics Ind Circuit hydraulique d'assistance avec echangeur basse pression

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655000A (en) * 1942-03-23 1953-10-13 Hydraulik As Pump and motor hydraulic system and control valve means therefor
US2415603A (en) * 1943-08-26 1947-02-11 Hydraulic Dev Corp Inc Hydraulic constant speed control system for parallel-connected hydraulic motors
US2632301A (en) * 1950-08-31 1953-03-24 James H Brodie Hydraulic braking apparatus
US3218797A (en) * 1964-07-23 1965-11-23 New York Air Brake Co Starting system
BE757640A (fr) * 1969-10-16 1971-04-16 Borg Warner Systemes hydrauliques, notamment pour la regulation d'une pompea debit variable
FR2104897B1 (enExample) * 1971-03-17 1974-03-22 Poclain Sa
GB1372809A (en) * 1973-04-04 1974-11-06 Priestman Bros Ltd Hydraulic ram circuit
US3999386A (en) * 1975-09-11 1976-12-28 Sundstrand Corporation Overspeed protection control for an engine
US4255091A (en) * 1979-02-05 1981-03-10 Dike Equipment Corporation Structural unit for hydraulic systems
US4713936A (en) * 1985-11-18 1987-12-22 Deere & Company Motor seal protector valve

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS ERMITTELT *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10342893A1 (de) * 2003-09-17 2005-05-25 Zf Friedrichshafen Ag Verfahren zur Erwärmung von Öl in einem Getriebeölkreislauf

Also Published As

Publication number Publication date
EP0337124A3 (de) 1991-06-26
US5048295A (en) 1991-09-17
DE58907669D1 (de) 1994-06-23
EP0337124B1 (de) 1994-05-18
EP0337124A2 (de) 1989-10-18

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee