ES2036014T3 - Sistema de transmisin hidrostatica y control limitador de potencia para el mismo. - Google Patents

Sistema de transmisin hidrostatica y control limitador de potencia para el mismo.

Info

Publication number
ES2036014T3
ES2036014T3 ES198989119857T ES89119857T ES2036014T3 ES 2036014 T3 ES2036014 T3 ES 2036014T3 ES 198989119857 T ES198989119857 T ES 198989119857T ES 89119857 T ES89119857 T ES 89119857T ES 2036014 T3 ES2036014 T3 ES 2036014T3
Authority
ES
Spain
Prior art keywords
pump
fluid
load
closed mesh
hydrostatic transmission
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
ES198989119857T
Other languages
English (en)
Inventor
William Alexander Ross
Randal Ernest Arlt
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.)
Eaton Corp
Original Assignee
Eaton Corp
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 Eaton Corp filed Critical Eaton Corp
Application granted granted Critical
Publication of ES2036014T3 publication Critical patent/ES2036014T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F16H61/4157—Control of braking, e.g. preventing pump over-speeding when motor acts as a pump
    • 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
    • F16H39/00—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
    • F16H39/04—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit
    • F16H39/06—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type
    • F16H39/08—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type each with one main shaft and provided with pistons reciprocating in cylinders
    • F16H39/10—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type each with one main shaft and provided with pistons reciprocating in cylinders with cylinders arranged around, and parallel or approximately parallel to the main axis of the gearing
    • F16H39/14—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type each with one main shaft and provided with pistons reciprocating in cylinders with cylinders arranged around, and parallel or approximately parallel to the main axis of the gearing with cylinders carried in rotary cylinder blocks or cylinder-bearing 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
    • 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
    • F16H61/4008—Control of circuit pressure
    • F16H61/4017—Control of high pressure, e.g. avoiding excess pressure by a relief valve
    • 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
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • 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
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/433—Pump capacity control by fluid pressure control means
    • 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
    • F16H59/00—Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
    • F16H59/68—Inputs being a function of gearing status
    • F16H2059/6838—Sensing gearing status of hydrostatic transmissions
    • F16H2059/6853—Sensing gearing status of hydrostatic transmissions the state of the transmission units, i.e. motor or pump capacity, e.g. for controlled shifting of range gear

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)

Abstract

SE PROPORCIONA UN SISTEMA MEJORADO DE TRANSMISION HIDROSTATICA DE MALLA CERRADA DEL TIPO QUE INCLUYE UNA BOMBA (11), Y UN PAR DE CONDUCTOS (15 Y 17). EL SISTEMA INCLUYE UNA VALVULA PRINCIPAL DE CONTROL (43) Y UNA BOMBA DE CARGA (23) QUE ES LA UNICA FUENTE DE FLUIDO DE RELLENO PARA EL SISTEMA DE MALLA CERRADA Y LA UNICA FUENTE DE FLUIDO DE CONTROL PARA CAMBIAR LA BOMBA. EL SISTEMA INCLUYE UN INSTRUMENTO DE LIMITACION DE POTENCIA QUE SE COMPONE DE LA PRIMERA Y SEGUNDA VALVULA DE SEGURIDAD (75 Y 77) QUE FUNCIONA PARA PROPORCIONAR LA COMUNICACION DEL FLUIDO DESDE CUALQUIER LADO EN QUE LA MALLA CERRADA EST A ALTA PRESION AL DEPOSITO DEL SISTEMA, SIEMPRE QUE LA PRESION DEL SISTEMA EXCEDA LA PRESION MAXIMA PREDETERMINADA. EL MOTOR SE ADAPTA PARA TRANSMITIR MOMENTO TORSOR DE EXCITACION PARA UNA CARGA REVERSIBLE (37) DEL TIPO QUE TIENE UNA INERCIA CONOCIDA Y UN TIEMPO PREDETERMINABLE DE DESACELERACION DESDE UN FUNCIONAMIENTO DE VELOCIDAD MAXIMA EN UNA DIRECCION A UNA CONDICION DE PARADA. UNA RESTRICCION DEL FLUJO IMPLICA (44) UNA RELACION EN SERIE ENTRE LA BOMBA DE CARGA Y SE SELECCIONA UN INSTRUMENTO PIEZOSENSIBLE AL FLUIDO (31,33) DE LA BOMBA, TAL QUE LA INVERSION DE LA VALVULA PRINCIPAL DE CONTROL (43), DESDE EL DESPLAZAMIENTO MAXIMO EN UNA DIRECCION AL DESPLAZAMIENTO MAXIMO EN LA DIRECCION OPUESTA, DA POR RESULTADO LA CORRIDA EN SENTIDO INVERSO DE LA BOMBA EN UN PERIODO DE TIEMPO APROXIMADAMENTE IGUAL AL TIEMPO DE DESACELERACION DE LA CARGA REVERSIBLE, POR CONSIGUIENTE, IMPIDIENDO SIGNIFICATIVAMENTE LA CAVITACION Y LAS PUNTAS DE ALTA PRESION.
ES198989119857T 1988-10-28 1989-10-25 Sistema de transmisin hidrostatica y control limitador de potencia para el mismo. Expired - Lifetime ES2036014T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/264,290 US4936095A (en) 1988-10-28 1988-10-28 Hydrostatic transmission system and power limiter control therefor

Publications (1)

Publication Number Publication Date
ES2036014T3 true ES2036014T3 (es) 1993-05-01

Family

ID=23005385

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198989119857T Expired - Lifetime ES2036014T3 (es) 1988-10-28 1989-10-25 Sistema de transmisin hidrostatica y control limitador de potencia para el mismo.

Country Status (6)

Country Link
US (1) US4936095A (es)
EP (1) EP0366125B1 (es)
JP (1) JP2838419B2 (es)
CA (1) CA1313990C (es)
DE (1) DE68903731T2 (es)
ES (1) ES2036014T3 (es)

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* Cited by examiner, † Cited by third party
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US4860788A (en) * 1987-06-29 1989-08-29 Kayaba Industry Co. Ltd. Metering valve
US5394696A (en) * 1990-12-15 1995-03-07 Barmag Ag Hydraulic system
US5590525A (en) * 1993-06-01 1997-01-07 Sundstrand Corporation Method of preventing cavitation in an axial piston pump during an aiding load and system and valve employing the same
JP3507142B2 (ja) * 1994-09-13 2004-03-15 株式会社 神崎高級工機製作所 油圧駆動装置
US5546752A (en) * 1995-02-23 1996-08-20 Hydro-Gear Ltd. Partnership Combination valve including improved neutral valve for use in hydrostatic transmission
US6698197B1 (en) * 2002-11-26 2004-03-02 Eaton Corporation Hydraulically actuated by-pass valve
US6955045B2 (en) * 2003-02-19 2005-10-18 Magic Circle Corporation Oil pump system
US7165396B2 (en) * 2003-07-11 2007-01-23 Eaton Corporation Pump control override for tandem pumps
US6964163B2 (en) * 2003-11-10 2005-11-15 Sauer-Danfoss, Inc. Dual check-relief valve
US6993904B2 (en) * 2004-05-06 2006-02-07 Eaton Corporation Integrated valve system
US8635867B2 (en) * 2004-07-15 2014-01-28 Parker-Hannifin Corporation Hydrostatic transmission
US7640735B2 (en) * 2005-09-19 2010-01-05 Parker-Hannifin Corporation Auxiliary pump for hydrostatic transmission
US20070137918A1 (en) * 2005-11-23 2007-06-21 Xingen Dong Mounting of hydrostatic transmission for riding lawn mower
US20080120974A1 (en) * 2006-11-24 2008-05-29 Parker-Hannifin Corporation Integrated hydrostatic transmission for left and right wheel drive
US7513111B2 (en) * 2006-05-18 2009-04-07 White Drive Products, Inc. Shock valve for hydraulic device
JP4653769B2 (ja) * 2007-03-06 2011-03-16 株式会社クボタ トラクタ用の静油圧式無段変速装置
US8511079B2 (en) * 2009-12-16 2013-08-20 Eaton Corporation Piecewise variable displacement power transmission
US8857171B2 (en) * 2010-02-11 2014-10-14 Parker-Hannifin Corporation Integrated hydrostatic transmission
CN101900145A (zh) * 2010-08-30 2010-12-01 无锡威孚精密机械制造有限责任公司 高压溢流阀
US9086143B2 (en) 2010-11-23 2015-07-21 Caterpillar Inc. Hydraulic fan circuit having energy recovery
US8515637B2 (en) * 2010-12-23 2013-08-20 Caterpillar Inc. Machine control system and method
CN102678645B (zh) * 2012-05-31 2014-10-29 常德中联重科液压有限公司 直动式溢流阀、直动式溢流阀阀组及液压溢流回路
FR3069035B1 (fr) * 2017-07-12 2020-01-10 Poclain Hydraulics Industrie Systeme de transmission hydrostatique comprenant des moyens de limitation d'acceleration lors d'un changement de cylindree, procede de pilotage et vehicule et engin ainsi equipe
DE102018208069A1 (de) * 2018-05-23 2019-11-28 Robert Bosch Gmbh Axialkolbenmaschine mit Ausnehmung im Bereich des Stelldruckkanals
KR20200098231A (ko) * 2019-02-12 2020-08-20 현대자동차주식회사 차량의 변속 제어 장치 및 방법

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU48711A1 (ru) * 1936-04-28 1936-08-31 Ф.Н. Дорофеев Устройство дл блокировки ковочной машины
US3164960A (en) * 1963-09-03 1965-01-12 New York Air Brake Co Hydrostatic transmission
US3359727A (en) * 1966-04-06 1967-12-26 Sundstrand Corp Hydrostatic transmission
US3477225A (en) * 1967-06-14 1969-11-11 Caterpillar Tractor Co Hydrostatic transmission control system
FR1590694A (es) * 1968-09-20 1970-04-20
US3561212A (en) * 1969-01-27 1971-02-09 Sundstrand Corp Hydrostatic transmission
US3585797A (en) * 1969-06-09 1971-06-22 Sundstrand Corp Hydrostatic transmission displacement control
US3884039A (en) * 1974-05-20 1975-05-20 Oilgear Co Hydraulic pump with horsepower limiter
US4189921A (en) * 1976-07-02 1980-02-26 Eaton Corporation Hydraulic controller
US4041702A (en) * 1976-10-15 1977-08-16 Caterpillar Tractor Co. Control system for a fluid drive vehicle
DE2701302C2 (de) * 1977-01-14 1982-06-24 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Automotive Steuerung für einen hydrostatischen Fahrantrieb
US4091617A (en) * 1977-05-11 1978-05-30 Eaton Corporation Hydraulic controller
US4476680A (en) * 1979-08-14 1984-10-16 Sundstrand Corporation Pressure override control
US4527393A (en) * 1981-09-02 1985-07-09 General Signal Corporation Control device for a hydrostatic transmission
US4616478A (en) * 1981-10-30 1986-10-14 Falle Jensen Rotatable hydrostatic transmission
US4694648A (en) * 1982-12-13 1987-09-22 Sundstrand Corporation Anti-plug control
US4512723A (en) * 1983-10-17 1985-04-23 Sundstrand Corporation Pressure limiter
US4617797A (en) * 1984-05-09 1986-10-21 Sundstrand Corporation Multi-function valve

Also Published As

Publication number Publication date
DE68903731D1 (de) 1993-01-14
JPH02159474A (ja) 1990-06-19
US4936095A (en) 1990-06-26
CA1313990C (en) 1993-03-02
JP2838419B2 (ja) 1998-12-16
EP0366125B1 (en) 1992-12-02
DE68903731T2 (de) 1993-04-08
EP0366125A1 (en) 1990-05-02

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