ITBO20000473A0 - HYDRAULIC DISTRIBUTOR, FOR CONTROLLING THE OPERATION OF A BRUSHCUTTER. - Google Patents

HYDRAULIC DISTRIBUTOR, FOR CONTROLLING THE OPERATION OF A BRUSHCUTTER.

Info

Publication number
ITBO20000473A0
ITBO20000473A0 IT2000BO000473A ITBO20000473A ITBO20000473A0 IT BO20000473 A0 ITBO20000473 A0 IT BO20000473A0 IT 2000BO000473 A IT2000BO000473 A IT 2000BO000473A IT BO20000473 A ITBO20000473 A IT BO20000473A IT BO20000473 A0 ITBO20000473 A0 IT BO20000473A0
Authority
IT
Italy
Prior art keywords
brushcutter
controlling
hydraulic distributor
distributor
hydraulic
Prior art date
Application number
IT2000BO000473A
Other languages
Italian (it)
Inventor
Claudio Bulgarelli
Massimo Musiani
Original Assignee
Hydrocontrol S P A
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 Hydrocontrol S P A filed Critical Hydrocontrol S P A
Priority to IT2000BO000473A priority Critical patent/ITBO20000473A1/en
Publication of ITBO20000473A0 publication Critical patent/ITBO20000473A0/en
Priority to EP01116758A priority patent/EP1178222A3/en
Publication of ITBO20000473A1 publication Critical patent/ITBO20000473A1/en

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
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use 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
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F15B2211/20584—Combinations of pumps with high and low capacity
    • 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
    • F15B2211/50—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
    • F15B2211/5157—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Harvester Elements (AREA)
  • Soil Working Implements (AREA)
  • Catching Or Destruction (AREA)
  • Brushes (AREA)
IT2000BO000473A 2000-07-31 2000-07-31 HYDRAULIC DISTRIBUTOR, TO CONTROL THE OPERATION OF A BRUSHCUTTER. ITBO20000473A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT2000BO000473A ITBO20000473A1 (en) 2000-07-31 2000-07-31 HYDRAULIC DISTRIBUTOR, TO CONTROL THE OPERATION OF A BRUSHCUTTER.
EP01116758A EP1178222A3 (en) 2000-07-31 2001-07-19 Hydraulic distribution unit for controlling the actuation of a bush cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2000BO000473A ITBO20000473A1 (en) 2000-07-31 2000-07-31 HYDRAULIC DISTRIBUTOR, TO CONTROL THE OPERATION OF A BRUSHCUTTER.

Publications (2)

Publication Number Publication Date
ITBO20000473A0 true ITBO20000473A0 (en) 2000-07-31
ITBO20000473A1 ITBO20000473A1 (en) 2002-01-31

Family

ID=11438663

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2000BO000473A ITBO20000473A1 (en) 2000-07-31 2000-07-31 HYDRAULIC DISTRIBUTOR, TO CONTROL THE OPERATION OF A BRUSHCUTTER.

Country Status (2)

Country Link
EP (1) EP1178222A3 (en)
IT (1) ITBO20000473A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146593A (en) * 1960-04-18 1964-09-01 Parker Hannifin Corp Dual pump system and control valve assembly therefor
BE792618A (en) * 1971-12-13 1973-06-12 Caterpillar Tractor Co Set of hydraulic control valves.
US3785156A (en) * 1971-12-27 1974-01-15 Caterpillar Tractor Co Hydraulic control for self-loading scraper with three-speed elevator drive

Also Published As

Publication number Publication date
EP1178222A2 (en) 2002-02-06
ITBO20000473A1 (en) 2002-01-31
EP1178222A3 (en) 2003-01-02

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