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GB2493706B - Combined closed loop hydraulic circuit and hydraulic energy storage system - Google Patents

Combined closed loop hydraulic circuit and hydraulic energy storage system

Info

Publication number
GB2493706B
GB2493706B GB1113884.9A GB201113884A GB2493706B GB 2493706 B GB2493706 B GB 2493706B GB 201113884 A GB201113884 A GB 201113884A GB 2493706 B GB2493706 B GB 2493706B
Authority
GB
United Kingdom
Prior art keywords
hydraulic
closed loop
energy storage
storage system
actuator
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.)
Expired - Fee Related
Application number
GB1113884.9A
Other versions
GB201113884D0 (en
GB2493706A (en
Inventor
Andrew John Smith
Robert Nicholas Harper
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.)
Caterpillar Inc
Original Assignee
Caterpillar Inc
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 Caterpillar Inc filed Critical Caterpillar Inc
Priority to GB1113884.9A priority Critical patent/GB2493706B/en
Publication of GB201113884D0 publication Critical patent/GB201113884D0/en
Priority to EP12179392A priority patent/EP2557239A1/en
Priority to CN2012102827240A priority patent/CN102927069A/en
Priority to RU2012134393/06A priority patent/RU2605514C2/en
Publication of GB2493706A publication Critical patent/GB2493706A/en
Application granted granted Critical
Publication of GB2493706B publication Critical patent/GB2493706B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2289—Closed circuit
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump
    • 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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/027—Installations or systems with accumulators having accumulator charging devices
    • 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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/14—Energy-recuperation means
    • 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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • 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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/024—Installations or systems with accumulators used as a supplementary power source, e.g. to store energy in idle periods to balance pump load
    • 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
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/163—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for sharing the pump output equally amongst users or groups of users, e.g. using anti-saturation, pressure compensation
    • 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
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20561—Type of pump reversible
    • 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
    • F15B2211/2053—Type of pump
    • F15B2211/20569—Type of pump capable of working as pump and motor
    • 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
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
    • 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
    • F15B2211/27—Directional control by means of the pressure source
    • 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
    • F15B2211/7121—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators the chambers being connected in series
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/88—Control measures for saving energy

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Wind Motors (AREA)

Abstract

This disclosure is directed towards a hydraulic control system (10, 47, 54) comprising a combined closed loop hydraulic circuit (14) for controlling two or more hydraulic actuators (21, 22) and a hydraulic energy storage system comprising one or more accumulators (19, 20). The hydraulic control system (10, 47, 54) further comprises a power unit (11). The closed loop hydraulic circuit (14) comprises a hydraulic machine (16) operably connected to the power unit (11), first and second accumulators (19, 20) for storing hydraulic fluid, first and second hydraulic actuators (21, 22), a first valve (17) for selectively directing hydraulic fluid between the hydraulic machine (16) and either the first accumulator (19) or the first hydraulic actuator (21) and a second valve (18) for selectively directing hydraulic fluid between the hydraulic machine (16) and either the second accumulator (20) or the second hydraulic actuator (22). The first hydraulic actuator (21) is fluidly connected to the second hydraulic actuator (22) by one or more conduits (29).
GB1113884.9A 2011-08-11 2011-08-11 Combined closed loop hydraulic circuit and hydraulic energy storage system Expired - Fee Related GB2493706B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1113884.9A GB2493706B (en) 2011-08-11 2011-08-11 Combined closed loop hydraulic circuit and hydraulic energy storage system
EP12179392A EP2557239A1 (en) 2011-08-11 2012-08-06 Combined closed loop hydraulic circuit and hydraulic energy storage system
CN2012102827240A CN102927069A (en) 2011-08-11 2012-08-09 A hydraulic control system and a control method of the system
RU2012134393/06A RU2605514C2 (en) 2011-08-11 2012-08-10 Combined closed-loop hydraulic circuit and hydraulic energy accumulation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1113884.9A GB2493706B (en) 2011-08-11 2011-08-11 Combined closed loop hydraulic circuit and hydraulic energy storage system

Publications (3)

Publication Number Publication Date
GB201113884D0 GB201113884D0 (en) 2011-09-28
GB2493706A GB2493706A (en) 2013-02-20
GB2493706B true GB2493706B (en) 2013-11-06

Family

ID=44764387

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1113884.9A Expired - Fee Related GB2493706B (en) 2011-08-11 2011-08-11 Combined closed loop hydraulic circuit and hydraulic energy storage system

Country Status (4)

Country Link
EP (1) EP2557239A1 (en)
CN (1) CN102927069A (en)
GB (1) GB2493706B (en)
RU (1) RU2605514C2 (en)

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Publication number Priority date Publication date Assignee Title
US20150059325A1 (en) * 2013-09-03 2015-03-05 Caterpillar Inc. Hybrid Apparatus and Method for Hydraulic Systems
US20160290367A1 (en) * 2013-12-19 2016-10-06 Volvo Construction Equipment Ab Hydraulic load sensing system
CN105201931A (en) * 2014-06-18 2015-12-30 博世力士乐（常州）有限公司 Hydraulic system
CN107000355A (en) * 2014-09-19 2017-08-01 Siti-B&T集团股份公司 The hydraulic system for the forcing press for being used to manufacture ceramic product is particularly for forcing press
GB2529909B (en) 2014-09-30 2016-11-23 Artemis Intelligent Power Ltd Industrial system with synthetically commutated variable displacement fluid working machine
CN106122126B (en) * 2016-08-18 2018-01-05 武汉船用机械有限责任公司 The control method and device of a kind of hydraulic system
CN107120320B (en) * 2017-04-19 2018-09-14 北京科技大学 A kind of more container type circular energy storage devices and its energy storing-releasing method
CN113090610B (en) * 2021-03-12 2022-08-12 上海卫星工程研究所 Surface mount type piezoelectric screw pump hydraulic linear actuator and driving method thereof
WO2024108543A1 (en) * 2022-11-25 2024-05-30 江苏徐工工程机械研究院有限公司 Energy recovery and reuse system for loader-digger and control method therefor, and loader-digger

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US5293746A (en) * 1992-12-28 1994-03-15 Caterpillar Inc. Hydraulic control system
GB2335649A (en) * 1998-03-27 1999-09-29 Caterpillar Inc Hydraulic control for a quick coupler

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DE2106292A1 (en) * 1971-02-10 1972-09-07 Salzgitter Maschinen AG, 3327 Salz gitter Bad Swivel device for the shovel of a loading machine
DE9218087U1 (en) * 1991-11-08 1993-10-21 Mannesmann AG, 40213 Düsseldorf Drive device
US6520731B2 (en) 2001-06-27 2003-02-18 Sauer-Danfoss, Inc. Closed circuit swing control system
DE10256307A1 (en) * 2002-12-03 2004-06-24 O&K Orenstein & Koppel Ag Hydraulic steering for vehicles
RU2286494C1 (en) * 2005-03-31 2006-10-27 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт "Сигнал" (ФГУП "ВНИИ "Сигнал") Multi-functional hydraulic system
RU2325561C2 (en) * 2006-05-31 2008-05-27 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт "Сигнал" (ФГУП "ВНИИ "Сигнал") Electro hydraulic drive
EP2000336A1 (en) * 2007-06-07 2008-12-10 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Suspension system
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Publication number Priority date Publication date Assignee Title
US5293746A (en) * 1992-12-28 1994-03-15 Caterpillar Inc. Hydraulic control system
GB2335649A (en) * 1998-03-27 1999-09-29 Caterpillar Inc Hydraulic control for a quick coupler
US6266960B1 (en) * 1998-03-27 2001-07-31 Caterpillar S.A.R.L. Hydraulic control for a quick coupler

Also Published As

Publication number Publication date
RU2605514C2 (en) 2016-12-20
RU2012134393A (en) 2014-02-20
GB201113884D0 (en) 2011-09-28
GB2493706A (en) 2013-02-20
EP2557239A1 (en) 2013-02-13
CN102927069A (en) 2013-02-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20190811