EP2549124A3 - Load supporting valve - Google Patents

Load supporting valve Download PDF

Info

Publication number
EP2549124A3
EP2549124A3 EP12176655A EP12176655A EP2549124A3 EP 2549124 A3 EP2549124 A3 EP 2549124A3 EP 12176655 A EP12176655 A EP 12176655A EP 12176655 A EP12176655 A EP 12176655A EP 2549124 A3 EP2549124 A3 EP 2549124A3
Authority
EP
European Patent Office
Prior art keywords
cavity
valve
load supporting
supporting valve
receiving
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
EP12176655A
Other languages
German (de)
French (fr)
Other versions
EP2549124B1 (en
EP2549124A2 (en
Inventor
Christian Storci
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.)
Atlantic Fluid Tech SRL
Original Assignee
Atlantic Fluid Tech SRL
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 Atlantic Fluid Tech SRL filed Critical Atlantic Fluid Tech SRL
Publication of EP2549124A2 publication Critical patent/EP2549124A2/en
Publication of EP2549124A3 publication Critical patent/EP2549124A3/en
Application granted granted Critical
Publication of EP2549124B1 publication Critical patent/EP2549124B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F15B11/04—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"
    • F15B11/0445—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" with counterbalance valves, e.g. to prevent overrunning or for braking
    • 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
    • F15B13/029—Counterbalance 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
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • F15B2211/50581—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance 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
    • F15B2211/705—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

Abstract

A valve (1) comprises a body (2), provided with a plurality of openings (3, 4, 5, 55) through which a pressurised fluid can enter or exit said valve (1) and cavity means (8, 9, 26, 54), made in the body (2) and suitable for receiving the fluid. The cavity means (8, 9, 26, 54) comprises a first cavity (8) and a second cavity (9), the first cavity (8) comprising a portion (10) suitable for receiving a containing element (16) and the second cavity (9) comprising an end portion (9b) suitable for receiving a closing element (46). The valve (1) further comprises connecting means (58) suitable for making the portion (10) and the end portion (9b) reciprocally communicating.
EP20120176655 2011-07-19 2012-07-17 Load supporting valve Active EP2549124B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000175A ITMO20110175A1 (en) 2011-07-19 2011-07-19 LOAD DISPLACEMENT VALVE

Publications (3)

Publication Number Publication Date
EP2549124A2 EP2549124A2 (en) 2013-01-23
EP2549124A3 true EP2549124A3 (en) 2013-03-06
EP2549124B1 EP2549124B1 (en) 2014-09-03

Family

ID=44511270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120176655 Active EP2549124B1 (en) 2011-07-19 2012-07-17 Load supporting valve

Country Status (2)

Country Link
EP (1) EP2549124B1 (en)
IT (1) ITMO20110175A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20130237A1 (en) * 2013-08-12 2015-02-13 Atlantic Fluid Tech S R L PILOT VALVE OF LOAD REPLACEMENT
CN103452935B (en) * 2013-08-27 2015-11-18 北京机械设备研究所 A kind of pump delivery pressure is not by the closed system hydrovalve of load disturbance
CN104696315B (en) * 2015-02-02 2017-01-25 浙江高宇液压机电有限公司 Anti-pollution piloted relief valve
CN105387016A (en) * 2015-12-21 2016-03-09 山河智能装备股份有限公司 Hydraulic control back pressure valve for engineering machinery
CN106958552B (en) * 2017-04-22 2018-04-13 新乡市新倍增自动化设备有限公司 A kind of Electrical hydrostatic actuator return oil pressure valve
IT201900023556A1 (en) 2019-12-10 2021-06-10 Atlantic Fluid Tech S R L Load support valve
IT202000017854A1 (en) * 2020-07-23 2022-01-23 Atlantic Fluid Tech S R L HYDRAULIC CONTROL DEVICE

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472261A (en) * 1966-01-05 1969-10-14 Racine Hydraulics Inc Directional control valve
US3665810A (en) * 1970-01-14 1972-05-30 Koehring Co Differential pressure holding valve
EP0049034A2 (en) * 1980-09-30 1982-04-07 Modular Controls Corporation Hydraulic sequencing valve
DE102006013482A1 (en) * 2006-03-21 2007-09-27 Rausch & Pausch Gmbh Valve, for a hydraulic and/or pneumatic system, has a one-piece valve body and a seal at the piston mantle surface to prevent leakages
CN201021682Y (en) * 2007-03-14 2008-02-13 北京航天发射技术研究所 High performance sealing hydraulic pressure lock
US20090249776A1 (en) * 2008-04-03 2009-10-08 Noam Davidson Lock valve with grooved porting in bore

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472261A (en) * 1966-01-05 1969-10-14 Racine Hydraulics Inc Directional control valve
US3665810A (en) * 1970-01-14 1972-05-30 Koehring Co Differential pressure holding valve
EP0049034A2 (en) * 1980-09-30 1982-04-07 Modular Controls Corporation Hydraulic sequencing valve
DE102006013482A1 (en) * 2006-03-21 2007-09-27 Rausch & Pausch Gmbh Valve, for a hydraulic and/or pneumatic system, has a one-piece valve body and a seal at the piston mantle surface to prevent leakages
CN201021682Y (en) * 2007-03-14 2008-02-13 北京航天发射技术研究所 High performance sealing hydraulic pressure lock
US20090249776A1 (en) * 2008-04-03 2009-10-08 Noam Davidson Lock valve with grooved porting in bore

Also Published As

Publication number Publication date
EP2549124B1 (en) 2014-09-03
EP2549124A2 (en) 2013-01-23
ITMO20110175A1 (en) 2013-01-20

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