ES456106A1 - Perfeccionamientos introducidos en una transmision hidrosta-tica. - Google Patents

Perfeccionamientos introducidos en una transmision hidrosta-tica.

Info

Publication number
ES456106A1
ES456106A1 ES456106A ES456106A ES456106A1 ES 456106 A1 ES456106 A1 ES 456106A1 ES 456106 A ES456106 A ES 456106A ES 456106 A ES456106 A ES 456106A ES 456106 A1 ES456106 A1 ES 456106A1
Authority
ES
Spain
Prior art keywords
pump
motor
pressure
drive shaft
motor drive
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
ES456106A
Other languages
English (en)
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.)
Renold Ltd
Original Assignee
Renold Ltd
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 Renold Ltd filed Critical Renold Ltd
Publication of ES456106A1 publication Critical patent/ES456106A1/es
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
    • F16H61/4157—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
    • 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
    • F16H61/421—Motor capacity control by electro-hydraulic control means, e.g. using solenoid valves
    • 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
    • F16H61/472—Automatic regulation in accordance with output requirements for achieving a target output torque
    • 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
    • F16H59/14—Inputs being a function of torque or torque demand
    • F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

Perfeccionamientos introducidos en una transmisión hidrostática que comprende una bomba hidráulica principal y un motor hidráulico, al menos uno de los cuales es un dispositivo de desplazamiento variable cuyo desplazamiento de volumen es variable por el ajuste de un miembro de control asociado con el dispositivo, estando conectado el motor hidráulico para ser propulsado por fluido hidráulico bajo alta presión suministrada por dicha bomba, teniendo el motor un árbol de propulsión secundario para proporcionar el par de salida procedente de la transmisión, estando conectados dicha bomba y dicho motor en un sistema en bucle cerrado, habiendo una conducción de salida de fluido hidráulico que conecta el lado de salida de dicha bomba con dicho motor para suministrar el fluido de trabajo a alta presión a dicho motor y una conducción de retorno de fluido hidráulico que conecta dicho motor con el lado de retorno de dicha bomba para devolver a la bomba fluido bajo presión reducida que sale de dicho motor, una bomba reforzadora conectada para retirar fluido hidráulico de un depósito para fluido hidráulico y suministrarlo a dicho sistema en bucle cerrado para reponer cualquier pérdida de fluido hidráulico y suministrarlo a dichos sistema en bucle cerrado para reponer cualquier pérdida de fluido hidráulico desde dicho sistema en bucle cerrado, un acelerador para dicho árbol de propulsión secundario, siendo dicho acelerador desplazable para hacer variar la máxima presión de suministro de fluído hidráulico que puede lograrse por dicha bomba hidráulica principal, y medios de control para ajustar automáticamente dicho miembro de control con el fin de mantener sustancialmente constante la presión de fluido de trabajo hidráulico suministrado por dicha bomba hidráulica principal, en el valor máximo determinado por la posición de ajuste de dicho acelerador en cualquier ajuste particular del mismo a lo largo del margen de caudales de dicho dispositivo de desplazamiento variable desde su estado de caudal mínimo a su estado de caudal máximo, con lo cual el par de dicho árbol secundario aumenta con el desplazamiento de dicho acelerador para aumentar la máxima presión de abastecimiento de fluido hidráulico que puede lograrse por dicha bomba hidráulica principal y el par de dicho árbol de salida disminuye con desplazamiento de dicho acelerador para disminuir la presión de abastecimiento máxima de fluido hidráulico que puede lograrse por dicha bomba hidráulica principal.
ES456106A 1976-02-21 1977-02-19 Perfeccionamientos introducidos en una transmision hidrosta-tica. Expired ES456106A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6944/76A GB1570711A (en) 1976-02-21 1976-02-21 Hydrostatic transmission control

Publications (1)

Publication Number Publication Date
ES456106A1 true ES456106A1 (es) 1978-03-01

Family

ID=9823717

Family Applications (1)

Application Number Title Priority Date Filing Date
ES456106A Expired ES456106A1 (es) 1976-02-21 1977-02-19 Perfeccionamientos introducidos en una transmision hidrosta-tica.

Country Status (12)

Country Link
US (1) US4077212A (es)
JP (1) JPS52115968A (es)
AR (1) AR214195A1 (es)
AU (1) AU507420B2 (es)
BR (1) BR7701020A (es)
CA (1) CA1063910A (es)
DE (1) DE2707240A1 (es)
ES (1) ES456106A1 (es)
FR (1) FR2341789A1 (es)
GB (1) GB1570711A (es)
IT (1) IT1081711B (es)
SE (1) SE7701786L (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD133698A1 (de) * 1977-11-28 1979-01-17 Stefan Hein Grenzlastregelung fuer hydrostatische antriebe
DE2823559A1 (de) * 1978-05-30 1979-12-06 Linde Ag Steuer- und regeleinrichtung fuer ein hydrostatisches getriebe
PL160281B1 (pl) * 1989-12-14 1993-02-26 Korsmeyer Trading Internltd Uklad lacznego sterowania silnikiem spalinowym i sprzezona z nim przekladnia hydrosta tyczna PL PL
JP4208179B2 (ja) * 2002-10-28 2009-01-14 株式会社小松製作所 油圧駆動車両
US20090032317A1 (en) * 2007-07-30 2009-02-05 Grigoriy Epshteyn Superefficient hydraulic hybrid powertrain and method of operation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214911A (en) * 1963-06-04 1965-11-02 Dowty Hydraulics Units Ltd Hydraulic apparatus
US3186162A (en) * 1963-09-10 1965-06-01 Gen Mecanique Applique S I G M Prime mover systems
US3243959A (en) * 1964-11-13 1966-04-05 Lucas Industries Ltd Hydraulic transmission mechanism
US3369360A (en) * 1965-11-18 1968-02-20 Charles P. De Biasi Hydraulic propulsion and braking system for vehicles or the like
US3561212A (en) * 1969-01-27 1971-02-09 Sundstrand Corp Hydrostatic transmission
FR2250389A5 (en) * 1973-11-02 1975-05-30 Caterpillar Tractor Co Variable displacement pump hydraulic drive system - has automatic hydraulic control device to adjust pump displacement as function of motor speed
DE2449464A1 (de) * 1974-10-19 1976-05-06 Kloeckner Humboldt Deutz Ag Hydrostatisches fahrzeuggetriebe

Also Published As

Publication number Publication date
SE7701786L (sv) 1977-08-22
AU507420B2 (en) 1980-02-14
GB1570711A (en) 1980-07-09
BR7701020A (pt) 1977-12-13
US4077212A (en) 1978-03-07
JPS52115968A (en) 1977-09-28
CA1063910A (en) 1979-10-09
FR2341789A1 (fr) 1977-09-16
AU2246877A (en) 1978-09-07
IT1081711B (it) 1985-05-21
DE2707240A1 (de) 1977-09-01
AR214195A1 (es) 1979-05-15

Similar Documents

Publication Publication Date Title
GB1482947A (en) System for the combined control of an internal combustion engine and a hydrostatic transmission connected thereto
SE7904680L (sv) Styr- eller regleranordning for en hydrostatisk vexel
EP0301896B1 (en) Hydraulic control device for a continuously variable transmission for motor vehicles
GB1519063A (en) Vehicle steering system
IE792296L (en) Apparatus for delivering varying quantities of a fluid
GB1496475A (en) Transmission ratio control system
GB2027854A (en) Hydrostatic transmission control
ES456106A1 (es) Perfeccionamientos introducidos en una transmision hidrosta-tica.
GB1470430A (en) Hydraulic transmission
US4143996A (en) Hydraulic control system and method
GB1090829A (en) Output speed control system for a variable capacity friction clutch
GB928657A (en) Hydraulic transmission with low speed slip compensation
GB1482571A (en) Hydrostatic transmission
GB1315064A (en) Hydraulic control system for a variable displacement pump supplied by a feed pump
GB1293192A (en) Power assisted vehicle steering
GB1278223A (en) Improvements in control system for automatically regulating the division of power between motives means and working means
GB1085176A (en) Hydrostatic transmission
GB1222515A (en) Improvements relating to hydraulically controlled rotary transmissions
GB1214280A (en) Friction clutch and torque converter power transmission
RU2119185C1 (ru) Электрогидравлический следящий привод
GB1013592A (en) Variable ratio transmission control system
GB1501761A (en) Apparatus for regulating the output from an adjustable hydraulic pump
GB935185A (en) Improvements relating to self-propelled vehicles having an hydraulic transmission system
FR2258571A1 (en) Hydraulic transmission attached directly to vehicle wheel - changes speed by varying number of pistons used
GB1515757A (en) Control apparatus for an adjustable displacement pump