EP2365226A1 - Hydraulikanlage - Google Patents

Hydraulikanlage Download PDF

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Publication number
EP2365226A1
EP2365226A1 EP11157419A EP11157419A EP2365226A1 EP 2365226 A1 EP2365226 A1 EP 2365226A1 EP 11157419 A EP11157419 A EP 11157419A EP 11157419 A EP11157419 A EP 11157419A EP 2365226 A1 EP2365226 A1 EP 2365226A1
Authority
EP
European Patent Office
Prior art keywords
port
valve
pressure
spool
return
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.)
Granted
Application number
EP11157419A
Other languages
English (en)
French (fr)
Other versions
EP2365226B1 (de
Inventor
Ricccardo Morselli
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.)
CNH Industrial Italia SpA
Original Assignee
CNH Industrial Italia 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 CNH Industrial Italia SpA filed Critical CNH Industrial Italia SpA
Publication of EP2365226A1 publication Critical patent/EP2365226A1/de
Application granted granted Critical
Publication of EP2365226B1 publication Critical patent/EP2365226B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/044—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out"
    • 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
    • F15B2211/3127—Floating position connecting the working ports and 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
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41581—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member 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
    • F15B2211/40—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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member
    • F15B2211/761—Control of a negative load, i.e. of a load generating hydraulic energy
    • 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
    • F15B2211/77—Control of direction of movement of the output member
    • F15B2211/7741—Control of direction of movement of the output member with floating mode, e.g. using a direct connection between both lines of a double-acting cylinder

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
EP11157419.0A 2010-03-12 2011-03-09 Hydraulikanlage Active EP2365226B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000190A ITTO20100190A1 (it) 2010-03-12 2010-03-12 Sistema idraulico

Publications (2)

Publication Number Publication Date
EP2365226A1 true EP2365226A1 (de) 2011-09-14
EP2365226B1 EP2365226B1 (de) 2013-05-22

Family

ID=43016653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11157419.0A Active EP2365226B1 (de) 2010-03-12 2011-03-09 Hydraulikanlage

Country Status (2)

Country Link
EP (1) EP2365226B1 (de)
IT (1) ITTO20100190A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013095926A1 (en) * 2011-12-23 2013-06-27 Caterpillar Inc. Hydraulic system for controlling a work implement
WO2014060645A1 (en) * 2012-10-18 2014-04-24 Wärtsilä Finland Oy Gas exchange valve arrangement
EP3001043A1 (de) * 2014-09-25 2016-03-30 CNH Industrial Italia S.p.A. Hydraulikventil
EP3001042A1 (de) * 2014-09-25 2016-03-30 CNH Industrial Italia S.p.A. Hydraulikanlage
IT201900015363A1 (it) * 2019-09-02 2021-03-02 Cnh Ind Italia Spa Valvola direzionale per un veicolo da lavoro e relativa disposizione idraulica

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0251172A2 (de) * 1986-06-30 1988-01-07 Vickers Incorporated Hydraulisches Steuersystem
US6092454A (en) * 1998-07-23 2000-07-25 Caterpillar Inc. Controlled float circuit for an actuator
WO2004042235A1 (de) * 2002-11-07 2004-05-21 Bosch Rexroth Ag Hydraulisches zweikreisbremssystem
DE102005022275A1 (de) * 2004-07-22 2006-02-16 Bosch Rexroth Aktiengesellschaft Hydraulische Steueranordnung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0251172A2 (de) * 1986-06-30 1988-01-07 Vickers Incorporated Hydraulisches Steuersystem
US6092454A (en) * 1998-07-23 2000-07-25 Caterpillar Inc. Controlled float circuit for an actuator
WO2004042235A1 (de) * 2002-11-07 2004-05-21 Bosch Rexroth Ag Hydraulisches zweikreisbremssystem
DE102005022275A1 (de) * 2004-07-22 2006-02-16 Bosch Rexroth Aktiengesellschaft Hydraulische Steueranordnung

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013095926A1 (en) * 2011-12-23 2013-06-27 Caterpillar Inc. Hydraulic system for controlling a work implement
US9085873B2 (en) 2011-12-23 2015-07-21 Caterpillar Inc. Hydraulic system for controlling a work implement
WO2014060645A1 (en) * 2012-10-18 2014-04-24 Wärtsilä Finland Oy Gas exchange valve arrangement
CN104822911A (zh) * 2012-10-18 2015-08-05 瓦锡兰芬兰有限公司 气体交换阀装置
CN105465076A (zh) * 2014-09-25 2016-04-06 凯斯纽荷兰(中国)管理有限公司 液压阀
EP3001042A1 (de) * 2014-09-25 2016-03-30 CNH Industrial Italia S.p.A. Hydraulikanlage
US20160090716A1 (en) * 2014-09-25 2016-03-31 CNH Industrial America, LLC Hydraulic valve
US20160090997A1 (en) * 2014-09-25 2016-03-31 CNH Industrial America, LLC Hydraulic system
EP3001043A1 (de) * 2014-09-25 2016-03-30 CNH Industrial Italia S.p.A. Hydraulikventil
CN105465064A (zh) * 2014-09-25 2016-04-06 凯斯纽荷兰(中国)管理有限公司 液压系统
US9708796B2 (en) 2014-09-25 2017-07-18 Cnh Industrial America Llc Hydraulic valve
US9790964B2 (en) 2014-09-25 2017-10-17 Cnh Industrial America Llc Hydraulic system
CN105465064B (zh) * 2014-09-25 2019-01-22 凯斯纽荷兰(中国)管理有限公司 液压系统
CN105465076B (zh) * 2014-09-25 2019-01-22 凯斯纽荷兰(中国)管理有限公司 液压阀
IT201900015363A1 (it) * 2019-09-02 2021-03-02 Cnh Ind Italia Spa Valvola direzionale per un veicolo da lavoro e relativa disposizione idraulica
EP3786461A1 (de) * 2019-09-02 2021-03-03 CNH Industrial Italia S.p.A. Wegeventil für ein arbeitsfahrzeug und zugehörige hydraulische anordnung

Also Published As

Publication number Publication date
ITTO20100190A1 (it) 2011-09-13
EP2365226B1 (de) 2013-05-22

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