[go: up one dir, main page]

IT1281708B1 - Dispositivo per l'azionamento di un'utenza idraulica con una velocita' di azionamento indipendente dal carico resistente gravante su tale - Google Patents

Dispositivo per l'azionamento di un'utenza idraulica con una velocita' di azionamento indipendente dal carico resistente gravante su tale

Info

Publication number
IT1281708B1
IT1281708B1 IT96MI000117A ITMI960117A IT1281708B1 IT 1281708 B1 IT1281708 B1 IT 1281708B1 IT 96MI000117 A IT96MI000117 A IT 96MI000117A IT MI960117 A ITMI960117 A IT MI960117A IT 1281708 B1 IT1281708 B1 IT 1281708B1
Authority
IT
Italy
Prior art keywords
branch
user
light
hydraulic circuit
hydraulic
Prior art date
Application number
IT96MI000117A
Other languages
English (en)
Inventor
Claudio Bovi
Renato Brevini
Original Assignee
Brevini Hydraulics Spa
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 Brevini Hydraulics Spa filed Critical Brevini Hydraulics Spa
Priority to IT96MI000117A priority Critical patent/IT1281708B1/it
Publication of ITMI960117A0 publication Critical patent/ITMI960117A0/it
Priority to DE69703166T priority patent/DE69703166T2/de
Priority to EP97100802A priority patent/EP0786598B1/en
Priority to DK97100802T priority patent/DK0786598T3/da
Publication of ITMI960117A1 publication Critical patent/ITMI960117A1/it
Application granted granted Critical
Publication of IT1281708B1 publication Critical patent/IT1281708B1/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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • 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
    • F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation 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
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and 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
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected 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
    • F15B2211/30—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
    • F15B2211/50—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
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5153—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a 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
    • F15B2211/50—Pressure control
    • F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
    • F15B2211/6054—Load sensing circuits having valve means between output member and the load sensing circuit using shuttle 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
    • F15B2211/6055—Load sensing circuits having valve means between output member and the load sensing circuit 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
    • F15B2211/70—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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Transmission Device (AREA)

Abstract

Il presente trovato si riferisce ad un dispositivo di comando idraulico per l'azionamento di un'utenza idraulica con una velocità di azionamento indipendente dal carico resistente gravante su tale utenza idraulica. Il dispositivo comprende una valvola pilota bidirezionale, azionabile per collegare un ramo di azionamento di un'utenza con un ramo in pressione di un circuito idraulico e per collegare l'altro ramo di azionamento dell'utenza con un ramo a scarico del circuito idraulico, ed un compensatore di pressione, posto sul ramo in pressione del circuito idraulico che entra nella valvola pilota. La valvola pilota presenta: un primo ingresso, che è connesso al ramo in pressione del circuito idraulico, almeno un secondo ingresso, che è connesso al ramo a scarico del circuito idraulico, una prima uscita, che è connessa ad un primo ramo di azionamento dell'utenza, una seconda uscita che è connessa al secondo ramo di azionamento dell'utenza, una prima luce di uscita che è connessa a un primo condotto di controllo, una seconda luce di uscita che è connessa ad un secondo condotto di controllo, una terza luce di uscita che è connessa ad un condotto di comando collegato al compensatore di pressione per il suo azionamento in contrasto alla pressione lungo il ramo in pressione del circuito idraulico citato. La valvola pilota presenta un cursore che è mobile a comando in tre posizioni delle quali: una prima posizione, nella quale collega il primo ingresso con la prima uscita, con la prima luce e con la terza luce ed il secondo ingresso con la seconda uscita e con la seconda luce, una seconda posizione, della quale collega il primo ingresso con la seconda uscita, con la seconda luce e con la terza luce ed il secondo ingresso con la prima uscita e con la prima luce, e una terza posizione, o posizione di riposo, nella quale occlude il primo ingresso.
IT96MI000117A 1996-01-24 1996-01-24 Dispositivo per l'azionamento di un'utenza idraulica con una velocita' di azionamento indipendente dal carico resistente gravante su tale IT1281708B1 (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT96MI000117A IT1281708B1 (it) 1996-01-24 1996-01-24 Dispositivo per l'azionamento di un'utenza idraulica con una velocita' di azionamento indipendente dal carico resistente gravante su tale
DE69703166T DE69703166T2 (de) 1996-01-24 1997-01-20 Einrichtung zur Betätigung einer hydraulischen Vorrichtung mit einer Betätigungsgeschwindigkeit, die unabhängig von der an der hydraulischen Vorrichtung wirkenden Last ist
EP97100802A EP0786598B1 (en) 1996-01-24 1997-01-20 Device for actuating a hydraulic user apparatus with an actuation speed that is independent of the resisting load affecting the hydraulic apparatus
DK97100802T DK0786598T3 (da) 1996-01-24 1997-01-20 Indretning til aktivering af hydraulisk brugeranordning med en aktiveringshastighed, der er uafhængig af modstandsbelastnin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT96MI000117A IT1281708B1 (it) 1996-01-24 1996-01-24 Dispositivo per l'azionamento di un'utenza idraulica con una velocita' di azionamento indipendente dal carico resistente gravante su tale

Publications (3)

Publication Number Publication Date
ITMI960117A0 ITMI960117A0 (it) 1996-01-24
ITMI960117A1 ITMI960117A1 (it) 1997-07-24
IT1281708B1 true IT1281708B1 (it) 1998-02-26

Family

ID=11373006

Family Applications (1)

Application Number Title Priority Date Filing Date
IT96MI000117A IT1281708B1 (it) 1996-01-24 1996-01-24 Dispositivo per l'azionamento di un'utenza idraulica con una velocita' di azionamento indipendente dal carico resistente gravante su tale

Country Status (4)

Country Link
EP (1) EP0786598B1 (it)
DE (1) DE69703166T2 (it)
DK (1) DK0786598T3 (it)
IT (1) IT1281708B1 (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1313848B1 (it) * 1999-11-25 2002-09-24 Brevini Hydraulics Spa Dispositivo di comando idraulico, per l'azionamento di un'utenzaidraulica, con compensatore della pressione in ingresso, ad elevata
DE10107532A1 (de) * 2001-02-17 2002-08-29 Mannesmann Rexroth Ag Wegeventil zur lastunabhängigen Steuerung eines hydraulischen Verbrauchers hinsichtlich Richtung und Geschwindigkeit
DE102007054137A1 (de) * 2007-11-14 2009-05-28 Hydac Filtertechnik Gmbh Hydraulische Ventilvorrichtung
ES2394389T3 (es) 2008-08-20 2013-01-31 Hawe Hydraulik Se Control hidráulico para un motor hidráulico

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3543231A1 (de) * 1985-12-06 1987-06-11 Sauer Getriebe Ag Proportionalwegeventil mit einzeldruckwaage
DE3841507C1 (it) 1988-01-22 1989-06-29 Danfoss A/S, Nordborg, Dk
DE9210647U1 (de) * 1992-08-10 1993-12-16 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Hydraulische Steuervorrichtung

Also Published As

Publication number Publication date
DK0786598T3 (da) 2000-12-27
ITMI960117A0 (it) 1996-01-24
DE69703166D1 (de) 2000-11-02
EP0786598A1 (en) 1997-07-30
DE69703166T2 (de) 2001-05-17
EP0786598B1 (en) 2000-09-27
ITMI960117A1 (it) 1997-07-24

Similar Documents

Publication Publication Date Title
DE60024620D1 (de) Ventilblock für Krankenhausbett
ATE212420T1 (de) Ventilsteuerung
JPS6487901A (en) Fluid pressure control system
WO2001098688A3 (en) Microvalve for electronically controlled transmission
DK200201766A (da) Hydraulisk trykforstærker
EP0795690A4 (en) HYDRAULIC CONTROL DEVICE
WO2001073297A3 (en) Booster pilot valve
IT1281708B1 (it) Dispositivo per l'azionamento di un'utenza idraulica con una velocita' di azionamento indipendente dal carico resistente gravante su tale
ATE56775T1 (de) Verteil- und abschlussvorrichtung fuer hydraulische systeme, insbesondere fuer hauswassersysteme.
FR2807793B1 (fr) Module d'interface pour ilot de distributeurs electropneumatiques
ATE242432T1 (de) Ventileinrichtung, insbesondere kombinierte proportional-wegeventileinrichtung
ATE169132T1 (de) Elektrohydraulische steuervorrichtung und druckminderventil
SE9202400L (sv) Plungeventil
IT9019911A1 (it) Dispositivo di comando indipendente dal carico per utenze idrauliche
EP0297401A3 (de) Hydraulische Steuervorrichtung
CA2179805A1 (en) Hydraulic Drive and Control System
US3583443A (en) Valve with highly sensitive actuating means
JPS5923106A (ja) 油圧バルブ
US5224684A (en) Blowback operated fluid valve
IT1280896B1 (it) Dispositivo pneumatico per l'azionamento di una valvola di scarico di una cassetta di risciacquo per wc
ITMI942343A1 (it) Dispositivo idraulico per comandare un pistone di azionamento per un elemento costruttivo mobile
ATE239874T1 (de) Elektrohydraulische steuervorrichtung
ATE220449T1 (de) Spannmodul
ATE357407T1 (de) Hebemechanismus
ATE350541T1 (de) Sanitärarmatur

Legal Events

Date Code Title Description
0001 Granted