IT1004762B - Dispositivo per l alimentazione di fluido sotto pressione ad un rice vitore particolarmente per macchi ne di movimento terra - Google Patents

Dispositivo per l alimentazione di fluido sotto pressione ad un rice vitore particolarmente per macchi ne di movimento terra

Info

Publication number
IT1004762B
IT1004762B IT67166/74A IT6716674A IT1004762B IT 1004762 B IT1004762 B IT 1004762B IT 67166/74 A IT67166/74 A IT 67166/74A IT 6716674 A IT6716674 A IT 6716674A IT 1004762 B IT1004762 B IT 1004762B
Authority
IT
Italy
Prior art keywords
vitor
under pressure
fluid under
supplying fluid
earth moving
Prior art date
Application number
IT67166/74A
Other languages
English (en)
Inventor
F Jacob Rene
P Fillion
Original Assignee
Poclain Sa
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 Poclain Sa filed Critical Poclain Sa
Application granted granted Critical
Publication of IT1004762B publication Critical patent/IT1004762B/it

Links

Classifications

    • 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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
    • F16K17/065—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure with differential piston
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • 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
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
    • 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
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable 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
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/52—Pressure control characterised by the type of actuation
    • F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid 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
    • 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
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • 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
    • F15B2211/76—Control of force or torque of the output member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Forklifts And Lifting Vehicles (AREA)
IT67166/74A 1973-01-25 1974-01-22 Dispositivo per l alimentazione di fluido sotto pressione ad un rice vitore particolarmente per macchi ne di movimento terra IT1004762B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7302665A FR2215563B1 (it) 1973-01-25 1973-01-25

Publications (1)

Publication Number Publication Date
IT1004762B true IT1004762B (it) 1976-07-20

Family

ID=9113846

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67166/74A IT1004762B (it) 1973-01-25 1974-01-22 Dispositivo per l alimentazione di fluido sotto pressione ad un rice vitore particolarmente per macchi ne di movimento terra

Country Status (10)

Country Link
US (1) US3881614A (it)
JP (1) JPS578961B2 (it)
AR (1) AR204088A1 (it)
BE (1) BE809845A (it)
BR (1) BR7400396D0 (it)
DE (1) DE2403241A1 (it)
ES (1) ES422602A1 (it)
FR (1) FR2215563B1 (it)
GB (1) GB1427864A (it)
IT (1) IT1004762B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215700A (en) * 1988-03-16 1989-09-27 Massey Ferguson Mfg Hydraulic circuits

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095990A (en) * 1961-03-30 1963-07-02 Hough Co Frank Transmission controlled loader hydraulic circuit
US3037354A (en) * 1961-05-02 1962-06-05 Hydraulic Unit Specialities Co Hydraulic apparatus for variable load systems
US3181430A (en) * 1962-07-30 1965-05-04 Caterpillar Tractor Co Relief valve for bucket loader circuits
US3478646A (en) * 1967-12-20 1969-11-18 Tractor Co Relief valve for hydraulic circuits
US3614273A (en) * 1970-01-26 1971-10-19 Clark Equipment Co Mechanism for controlling the boom arms and bucket of a front end loader

Also Published As

Publication number Publication date
US3881614A (en) 1975-05-06
FR2215563B1 (it) 1976-09-10
ES422602A1 (es) 1976-04-01
DE2403241A1 (de) 1974-08-01
BR7400396D0 (pt) 1974-12-03
FR2215563A1 (it) 1974-08-23
JPS578961B2 (it) 1982-02-19
GB1427864A (en) 1976-03-10
BE809845A (fr) 1974-05-16
AR204088A1 (es) 1975-11-20
JPS49104080A (it) 1974-10-02

Similar Documents

Publication Publication Date Title
IT947959B (it) Perfezionamento ad un raccordo per condutture di fluido ad alta pressione
IT1018000B (it) Sistema di lubrificazione per un dispositivo idraulico
IT1042566B (it) Apparato di controllo per disp sitivi azionati dalla pressione di un fluido fornente pressioni elevate ad un dispoitivo ausiliare
IT999759B (it) Recipiente per fluido sotto pressione particolarmente per aerosoli
AR198235A1 (es) Aparato para recoger un flujo de fluido
IT989928B (it) Apparecchio per fornire un alimentazione di fluido filtrato
IT997943B (it) Perfezionamento nelle disposizioni di tenuta in particolare per macchi ne a fluido di tipo rotativo
IT1006974B (it) Girante di macchina a fluido
IT1012259B (it) Sistema di tenuta per dispositivo a pressione di fluido
SE404622B (sv) Anleggning for manovrering av en tryckfluiddriven anordning
IT1003638B (it) Ripartitore di fluido ad alette
AT330530B (de) Druckkompensator fur einen drehbaren rohranschluss
IT1014736B (it) Apparecchio per la prova della pressione di un fluido
IT1054633B (it) Sistema di lubrificazione di per foratrici da roccia azionate da fluido in pressione
IT1004762B (it) Dispositivo per l alimentazione di fluido sotto pressione ad un rice vitore particolarmente per macchi ne di movimento terra
IT965380B (it) Innesto a pressione di fluido
IT1009135B (it) Dispositivo di alimentazione di fluido sotto pressione a due ri cevitori
IT1014218B (it) Macchina per movimenti di terra con utensile di lavoro sospeso ad un braccio
IT1004689B (it) Macchina a pressione di fluido
IT1003759B (it) Dispositivo per il collegamento rilasciabile di un apparecchio di lavoro ad un albero di prote si brachiale
IT997606B (it) Dispositivo a pressione di fluido
IT1022471B (it) Dispositivo di alimentazione di fluido sotto pressione comportante un motore di potenza limitata di azionamento di pompe
IT1029717B (it) Impianto per fluido idraulico sotto pressisone
IT1024877B (it) Dispositivo per l alimentazione di fluido sotto pressione mediante piupompe azionate da un unico motore
SE391796B (sv) Slanginfattning for tryckslangar