ES2721375T3 - Sistema de control hidráulico para equipos de manipulación de cargas móviles - Google Patents
Sistema de control hidráulico para equipos de manipulación de cargas móviles Download PDFInfo
- Publication number
- ES2721375T3 ES2721375T3 ES13778907T ES13778907T ES2721375T3 ES 2721375 T3 ES2721375 T3 ES 2721375T3 ES 13778907 T ES13778907 T ES 13778907T ES 13778907 T ES13778907 T ES 13778907T ES 2721375 T3 ES2721375 T3 ES 2721375T3
- Authority
- ES
- Spain
- Prior art keywords
- hydraulic
- actuators
- operable
- movement
- controller
- 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.)
- Active
Links
- 239000012530 fluid Substances 0.000 abstract 2
- 230000001276 controlling effect Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
Classifications
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- 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
- F15B11/22—Synchronisation of the movement of two or more servomotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
- F15B15/2846—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using detection of markings, e.g. markings on the piston rod
-
- 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
- F15B2211/30585—Assemblies of multiple valves having a single valve for multiple 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple 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
- F15B2211/30—Directional control
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
-
- 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
- F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
-
- 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
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
-
- 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
- F15B2211/41—Flow control characterised by the positions of the valve element
- F15B2211/413—Flow control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional 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
- F15B2211/40—Flow control
- F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
- F15B2211/41527—Flow control characterised by the connections of the flow 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
- F15B2211/40—Flow control
- F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
- F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve
- F15B2211/41536—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve being connected to multiple ports of an 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
- F15B2211/40—Flow control
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/426—Flow control characterised by the type of actuation electrically or electronically
-
- 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
- F15B2211/426—Flow control characterised by the type of actuation electrically or electronically
- F15B2211/427—Flow control characterised by the type of actuation electrically or electronically with signal modulation, e.g. using pulse width modulation [PWM]
-
- 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
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- 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
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/526—Pressure control characterised by the type of actuation electrically or electronically
-
- 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
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/526—Pressure control characterised by the type of actuation electrically or electronically
- F15B2211/527—Pressure control characterised by the type of actuation electrically or electronically with signal modulation, e.g. pulse width modulation [PWM]
-
- 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
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
-
- 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
- F15B2211/665—Methods of control using electronic components
- F15B2211/6654—Flow rate control
-
- 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
- F15B2211/665—Methods of control using electronic components
- F15B2211/6656—Closed loop control, i.e. control using feedback
-
- 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
- F15B2211/7114—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators
- F15B2211/7128—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators the chambers being connected in parallel
-
- 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
- F15B2211/75—Control of speed of the 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/755—Control of acceleration or deceleration of the 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/78—Control of multiple output members
- F15B2211/782—Concurrent control, e.g. synchronisation of two or more actuators
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Fluid-Pressure Circuits (AREA)
- Servomotors (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Un sistema de control hidráulico para regular flujos respectivos de fluido hidráulico a través de un par de accionadores hidráulicos (A, B) para permitir que dichos accionadores (A, B) muevan los respectivos miembros de acoplamiento de carga simultáneamente, comprendiendo dicho sistema de control: (a) dicho par de accionadores hidráulicos (A, B); (b) un conjunto de válvula hidráulica controlado eléctricamente que incluye un controlador (14) de válvula, siendo dicho conjunto de válvula operable automáticamente para regular dichos flujos respectivos de fluido hidráulico para controlar por separado los movimientos de dichos accionadores hidráulicos (A, B); (c) un conjunto de sensor operable para permitir que dicho controlador (14) detecte una diferencia de movimiento entre dichos accionadores hidráulicos (A, B) y genere una señal en respuesta a dicha diferencia; (d) dicho controlador (14) es operable para detectar magnitudes respectivas de movimiento de cada uno de dichos accionadores (A, B), y dicho conjunto de válvula hidráulica controlada eléctricamente es operable para controlar dichas magnitudes respectivas en respuesta a dichas magnitudes respectivas detectadas por dicho controlador (14); caracterizado porque (e) dicho conjunto de válvula hidráulica controlado eléctricamente es operable automáticamente en respuesta a dicha señal y a las respectivas magnitudes de movimiento de cada uno de dichos accionadores (A, B), para disminuir dicha diferencia al controlar una magnitud máxima de movimiento de un accionador que tenga la mayor magnitud mencionada mientras que simultáneamente permite un aumento en el movimiento del otro accionador a una magnitud más alta que dicha magnitud máxima.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/451,320 US10087958B2 (en) | 2012-04-19 | 2012-04-19 | Fluid power control system for mobile load handling equipment |
| PCT/US2013/025052 WO2013158199A1 (en) | 2012-04-19 | 2013-02-07 | Fluid power control system for mobile load handling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2721375T3 true ES2721375T3 (es) | 2019-07-31 |
Family
ID=49379234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES13778907T Active ES2721375T3 (es) | 2012-04-19 | 2013-02-07 | Sistema de control hidráulico para equipos de manipulación de cargas móviles |
Country Status (10)
| Country | Link |
|---|---|
| US (2) | US10087958B2 (es) |
| EP (1) | EP2839171B1 (es) |
| JP (1) | JP5981639B2 (es) |
| CN (1) | CN104246240A (es) |
| AU (1) | AU2013249904B2 (es) |
| BR (1) | BR112014020405A2 (es) |
| CA (1) | CA2862887C (es) |
| ES (1) | ES2721375T3 (es) |
| TR (1) | TR201905651T4 (es) |
| WO (1) | WO2013158199A1 (es) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9309099B2 (en) | 2014-06-20 | 2016-04-12 | Cascade Corporation | Side-shift limiter |
| US10183852B2 (en) * | 2015-07-30 | 2019-01-22 | Danfoss Power Solutions Gmbh & Co Ohg | Load dependent electronic valve actuator regulation and pressure compensation |
| WO2017127001A1 (en) * | 2016-01-21 | 2017-07-27 | Saab Ab | A fluid actuator arrangement |
| US11286965B2 (en) * | 2016-05-19 | 2022-03-29 | Saab Ab | Fluid actuator arrangement and a method for control of a fluid actuator arrangement |
| US20180112686A1 (en) * | 2016-10-26 | 2018-04-26 | Hydraforce, Inc. | Hydraulic actuator system of vehicle having secondary load-holding valve with tank connection |
| DE102016124504A1 (de) * | 2016-12-15 | 2018-06-21 | Jungheinrich Aktiengesellschaft | Hubvorrichtung für ein Flurförderzeug sowie ein solches Flurförderzeug |
| CN107178543A (zh) * | 2017-07-26 | 2017-09-19 | 国电联合动力技术有限公司 | 一种风力发电机组叶轮锁定液压控制系统 |
| DE102018104586A1 (de) * | 2018-02-28 | 2019-08-29 | Jungheinrich Aktiengesellschaft | Flurförderzeug mit mindestens einem hydraulischen Masthubzylinder |
| CN108374809B (zh) * | 2018-05-08 | 2019-07-30 | 安徽工程大学 | 一种伺服控制的液压同步回路纠偏规律的建立方法 |
| US12421947B2 (en) * | 2018-08-17 | 2025-09-23 | Spm Oil & Gas Inc. | Actuator for a reciprocating pump |
| US11655130B2 (en) * | 2019-05-22 | 2023-05-23 | Cascade Corporation | Synchronized hybrid clamp force controller for lift truck attachment |
| CN110260020B (zh) * | 2019-06-06 | 2020-08-04 | 苏州仁甬得物联科技有限公司 | 一种pwm双电压精密阀门控制系统 |
| CN114207296A (zh) * | 2019-07-08 | 2022-03-18 | 丹佛斯动力系统Ii技术有限公司 | 液压系统架构和可用于系统架构中的双向比例阀 |
| DE102019122100A1 (de) * | 2019-08-16 | 2021-02-18 | Jungheinrich Aktiengesellschaft | Zylinder mit einem optischen Positionssensor sowie System aus zumindest zwei Zylindern mit optischen Positionssensoren |
| CN111140669B (zh) * | 2020-01-17 | 2022-03-18 | 太原科技大学 | 一种高频响大流量比例阀及其控制系统 |
| US11751360B2 (en) * | 2020-03-17 | 2023-09-05 | International Business Machines Corporation | Intelligently deployed cooling fins |
| US12304790B1 (en) | 2021-07-20 | 2025-05-20 | Shaw Industries Group, Inc. | Clamp adapter for lift vehicle to facilitate lifting of malleable objects |
| CN115289085B (zh) * | 2022-07-25 | 2025-06-17 | 浙江华庆元生物科技有限公司 | 双路同步液压推料系统 |
| US20250237321A1 (en) * | 2024-01-23 | 2025-07-24 | Hamilton Sundstrand Corporation | Rate matching hydraulic actuators on common control manifold |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2201189A (en) | 1937-12-01 | 1940-05-21 | Makaroff | Pneumatic automobile lift |
| US2891765A (en) | 1955-11-25 | 1959-06-23 | Frank S Pearne | Jack |
| US2942848A (en) | 1956-05-31 | 1960-06-28 | Modern Hydraulics Inc | Hydraulic lifting apparatus |
| US2984072A (en) | 1959-01-12 | 1961-05-16 | Hydraulic Engineering Inc | Hydraulic jack assembly with synchronizing and flow equalizing valve mechanism |
| US3179274A (en) | 1962-09-28 | 1965-04-20 | Allis Chalmers Mfg Co | Control system for lift truck attachment |
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| CN102441589B (zh) | 2011-09-02 | 2013-12-11 | 北京机械工业自动化研究所 | 平整机在线换辊缸同步控制系统及控制方法 |
-
2012
- 2012-04-19 US US13/451,320 patent/US10087958B2/en active Active
-
2013
- 2013-02-07 TR TR2019/05651T patent/TR201905651T4/tr unknown
- 2013-02-07 WO PCT/US2013/025052 patent/WO2013158199A1/en not_active Ceased
- 2013-02-07 ES ES13778907T patent/ES2721375T3/es active Active
- 2013-02-07 AU AU2013249904A patent/AU2013249904B2/en not_active Ceased
- 2013-02-07 CN CN201380020522.1A patent/CN104246240A/zh active Pending
- 2013-02-07 EP EP13778907.9A patent/EP2839171B1/en active Active
- 2013-02-07 JP JP2015506984A patent/JP5981639B2/ja not_active Expired - Fee Related
- 2013-02-07 CA CA2862887A patent/CA2862887C/en not_active Expired - Fee Related
- 2013-02-07 BR BR112014020405-5A patent/BR112014020405A2/pt not_active Application Discontinuation
-
2018
- 2018-08-27 US US16/113,906 patent/US20180363682A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| JP5981639B2 (ja) | 2016-08-31 |
| AU2013249904B2 (en) | 2015-12-03 |
| EP2839171B1 (en) | 2019-03-20 |
| BR112014020405A2 (pt) | 2020-10-27 |
| US20180363682A1 (en) | 2018-12-20 |
| US10087958B2 (en) | 2018-10-02 |
| AU2013249904A1 (en) | 2014-09-18 |
| WO2013158199A1 (en) | 2013-10-24 |
| TR201905651T4 (tr) | 2019-05-21 |
| EP2839171A4 (en) | 2016-01-20 |
| JP2015514946A (ja) | 2015-05-21 |
| CA2862887A1 (en) | 2013-10-24 |
| CN104246240A (zh) | 2014-12-24 |
| CA2862887C (en) | 2017-03-07 |
| EP2839171A1 (en) | 2015-02-25 |
| US20130277584A1 (en) | 2013-10-24 |
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