IT1076534B - Dispositivi di comando per almeno due apparecchi utilizzatori idraulici alimentati da una sorgente di un fluido sotto pressione - Google Patents

Dispositivi di comando per almeno due apparecchi utilizzatori idraulici alimentati da una sorgente di un fluido sotto pressione

Info

Publication number
IT1076534B
IT1076534B IT19301/77A IT1930177A IT1076534B IT 1076534 B IT1076534 B IT 1076534B IT 19301/77 A IT19301/77 A IT 19301/77A IT 1930177 A IT1930177 A IT 1930177A IT 1076534 B IT1076534 B IT 1076534B
Authority
IT
Italy
Prior art keywords
source
under pressure
control devices
fluid under
user appliances
Prior art date
Application number
IT19301/77A
Other languages
English (en)
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Application granted granted Critical
Publication of IT1076534B publication Critical patent/IT1076534B/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
    • 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
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/165—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for adjusting the pump output or bypass in response to demand
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • 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
    • 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
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/3056—Assemblies of multiple 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
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
    • 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
    • F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid 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
    • F15B2211/57—Control of a differential 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
    • F15B2211/7052—Single-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
    • F15B2211/705—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
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87177—With bypass
    • Y10T137/87185—Controlled by supply or exhaust valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
IT19301/77A 1976-01-16 1977-01-14 Dispositivi di comando per almeno due apparecchi utilizzatori idraulici alimentati da una sorgente di un fluido sotto pressione IT1076534B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2601484A DE2601484C2 (de) 1976-01-16 1976-01-16 Steuereinrichtung für mindestens zwei von einer Druckmittelquelle gespeiste hydraulische Verbraucher

Publications (1)

Publication Number Publication Date
IT1076534B true IT1076534B (it) 1985-04-27

Family

ID=5967582

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19301/77A IT1076534B (it) 1976-01-16 1977-01-14 Dispositivi di comando per almeno due apparecchi utilizzatori idraulici alimentati da una sorgente di un fluido sotto pressione

Country Status (7)

Country Link
US (1) US4080994A (it)
JP (1) JPS5289779A (it)
DE (1) DE2601484C2 (it)
FR (1) FR2338404A1 (it)
GB (1) GB1570589A (it)
IT (1) IT1076534B (it)
SE (1) SE433764B (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS588802A (ja) * 1981-07-10 1983-01-19 Hitachi Constr Mach Co Ltd モノブロツク型方向切換弁集合装置
DE3139635A1 (de) * 1981-10-06 1983-04-21 Robert Bosch Gmbh, 7000 Stuttgart Hydraulische steuereinrichtung mit mindestens zwei wegeventilen zur steuerung hydraulischer verbraucher
DE3409873A1 (de) * 1984-03-17 1985-09-19 Robert Bosch Gmbh, 7000 Stuttgart Steuereinrichtung
GB8408635D0 (en) * 1984-04-04 1984-05-16 Lucas Ind Plc Control valve
SE454530B (sv) * 1987-04-01 1988-05-09 Atlas Copco Ab Hydrauliskt drivsystem for en eller flera hydraulmotorer
DE3722083C1 (de) * 1987-07-03 1988-09-15 Heilmeier & Weinlein Hydraulische Steuervorrichtung
DE69112544T2 (de) * 1990-03-05 1996-02-08 Komatsu Zenoah K.K., Higashiyamato, Tokio/Tokyo Hydraulisches betätigungsventil.
US5586577A (en) * 1994-09-28 1996-12-24 Samsung Heavy Industries Co., Ltd. Mono-block control valve with side bypass passage
AU720849B2 (en) * 1996-03-28 2000-06-15 Clark Equipment Company Multifunction valve stack
US6018895A (en) * 1996-03-28 2000-02-01 Clark Equipment Company Valve stack in a mini-excavator directing fluid under pressure from multiple pumps to actuable elements
EP2325499A1 (en) * 2009-11-19 2011-05-25 Bosch Rexroth Oil Control S.p.A. A pressure balancing valve for two cylinders operated in parallel
CN104030199B (zh) * 2014-05-26 2017-02-15 安徽合力股份有限公司 具有旁油路节流调速回路的叉车液压系统
US12098060B1 (en) * 2024-03-22 2024-09-24 Roadtek Enterprises Inc. Hydraulic jack assemblies

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415166A (en) * 1965-06-04 1968-12-10 Westinghouse Bremsen Apparate Automatically operative position holding arrangement for directional control valve device
DE1475958B2 (de) * 1965-11-20 1972-10-12 Robert Bosch Gmbh, 7000 Stuttgart Steuereinrichtung fuer mindestens zwei von einer druckmittelquelle gespeiste hydraulische verbraucher
US3744518A (en) * 1971-12-13 1973-07-10 Parker Hannifin Corp Directional control valve
DE2230799A1 (de) * 1972-06-23 1974-01-17 Bosch Gmbh Robert Steuervorrichtung fuer lastunabhaengige durchflussregulierung
DE2301607A1 (de) * 1973-01-13 1974-07-18 Bosch Gmbh Robert Hydraulische steuereinrichtung
IT993872B (it) * 1972-09-11 1975-09-30 Bosch Gmbh Robert Dispositivo di comando idraulico
DE2244445C3 (de) * 1972-09-11 1981-06-25 Robert Bosch Gmbh, 7000 Stuttgart Hydraulische Einrichtung zum Steuern der Druckmittelwege in einer Anlage mit wenigstens einem doppelwirkenden Servomotor
DE2259294C3 (de) * 1972-12-04 1979-01-04 Robert Bosch Gmbh, 7000 Stuttgart Hydraulische Einrichtung zum Steuern einer Anlage mit wenigstens einem Verbraucher
DE2312866A1 (de) * 1973-03-15 1974-09-19 Kloeckner Humboldt Deutz Ag Steuereinrichtung fuer mindestens zwei von einer druckmittelquelle gespeiste hydraulische verbraucher
US3920034A (en) * 1973-05-07 1975-11-18 Tomco Inc Proportional bypass valve having variable area orifice control means
DE2420242C2 (de) * 1974-04-26 1982-12-23 Robert Bosch Gmbh, 7000 Stuttgart Hydraulische Steuerschiebervorrichtung

Also Published As

Publication number Publication date
FR2338404A1 (fr) 1977-08-12
SE433764B (sv) 1984-06-12
DE2601484A1 (de) 1977-07-28
DE2601484C2 (de) 1984-07-26
FR2338404B1 (it) 1982-10-15
JPS5289779A (en) 1977-07-27
GB1570589A (en) 1980-07-02
SE7700317L (sv) 1977-07-17
US4080994A (en) 1978-03-28

Similar Documents

Publication Publication Date Title
IT1098784B (it) Dispositivo di irrigazione a valvola
IT7868824A0 (it) Dispositivo di tenuta per cilindri a pressione di fluido
IT1076534B (it) Dispositivi di comando per almeno due apparecchi utilizzatori idraulici alimentati da una sorgente di un fluido sotto pressione
IT1114527B (it) Procedimento e dispositivo di controllo del pompaggio di un fluido per macchine utensili
PL207658A1 (pl) Zawor sterujacy cisnienia
BR7705348A (pt) Bomba hidraulica operada a fluido
IT1092063B (it) Valvola di controllo del flusso azionata a fluido
IT7823349A0 (it) Generatore di portata di fluido sotto pressione.
IT1034644B (it) Gruppo di frenatura azionato a pressione di fluido
IT1081574B (it) Pompa a stantuffo tuffante per alte pressioni
SE7713874L (sv) Tryckfluidumdriven verktygsmaskin
AR203431A1 (es) Una valvula de control de fluido
DK416175A (da) Styreenhed for trykfluidumdrevne indretninger
BR7700604A (pt) Dispositivo rotativo a pressao de fluido
IT1077304B (it) Regolatore per dispositivi azionati dalla pressione di un fluido
JPS538490A (en) Control system of fluid pressure working type actuator device
AR215323A1 (es) Mejoras en dispositivos de presion dinamica para el suministro de un fluido comprimible bajo presion
FR2406143B1 (fr) Soupape commandee par un fluide a pression controlee
AT379992B (de) Druckregelventil
BR7507687A (pt) Dispositivo operado a pressao de fluido
IT1088752B (it) Meccanismo di regolazione per dispositivi azionati da un fluido pressurizzato
IT1004689B (it) Macchina a pressione di fluido
IT7830264A0 (it) Unita' di controllo di pressione di frenatura.
IT1073272B (it) Macchina motrice a pressione di fluido
SE7808375L (sv) Tetanordning for en tryckkolv