CN102322461B - Hydraulic actuating mechanism and method for recycling energy - Google Patents
Hydraulic actuating mechanism and method for recycling energy Download PDFInfo
- Publication number
- CN102322461B CN102322461B CN201110314368.1A CN201110314368A CN102322461B CN 102322461 B CN102322461 B CN 102322461B CN 201110314368 A CN201110314368 A CN 201110314368A CN 102322461 B CN102322461 B CN 102322461B
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- 238000000034 method Methods 0.000 title abstract description 5
- 238000004064 recycling Methods 0.000 title abstract 5
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 41
- 239000003921 oil Substances 0.000 claims description 69
- 238000004146 energy storage Methods 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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
- 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
- F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
- F15B7/005—With rotary or crank input
- F15B7/006—Rotary pump input
-
- 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
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric 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
- F15B2211/205—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
- F15B2211/27—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
- F15B2211/60—Circuit components or control therefor
- F15B2211/61—Secondary circuits
- F15B2211/613—Feeding circuits
-
- 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
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/88—Control measures for saving energy
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Actuator (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a hydraulic actuating mechanism and method for recycling energy. The actuating mechanism comprises an electric power storage device, a motor controller, a motor, an element, a first hydraulic control one-way valve, a second hydraulic control one-way valve, a hydraulic cylinder and a hydraulic oil tank. The hydraulic actuating mechanism and method for recycling energy can be used for converting the electric energy stored in the electric power storage device to the kinetic energy of the hydraulic piston rod and also converting the kinetic energy of the hydraulic piston rod to the electric energy stored in the electric power storage device so as to achieve the purposes of recycling energy and saving resources. The hydraulic actuating mechanism and method for recycling energy have a favorable application prospect on engineering machinery in the technical field of engineering.
Description
Technical field
Patent of the present invention relates to a kind of hydraulic actuator and manner of execution of engineering machinery, is specifically related to a kind of energy recuperable engineering machinery hydraulic actuator and manner of execution.
Background technique
Under modern technologies condition, for the various engineering machinery of engineering construction, mainly by drive unit, traveling gear, equipment, control gear and operator cabin, formed.Wherein drive unit is the power source of engineering machinery, generally comprises motor and oil hydraulic pump.Motor is the core component of drive unit, thereby power is provided and drives hydraulic pump works output hydraulic pressure oil to drive hydraulic cylinder piston rod to advance, retreat for whole engineering machinery.Hydraulic cylinder piston rod advances, retreats the device action that can push the work forward.Operator cabin is taken space for operator provide, and the supporting control device such as controller, manipulating box that are provided with of portion are controlled engineering machinery for operator within it.
When the equipment of this class engineering machinery is worked, there is passive situation about moving forward and backward in hydraulic cylinder piston rod under certain condition; In this case, normally the potential energy of equipment changes into hydraulic energy, if this part energy can reclaim, saves the valuable energy.But the equipment of existing engineering machinery still can not complete potential energy is changed into the recovery to this part energy after hydraulic energy.
Summary of the invention
Technical problem to be solved by this invention is to provide the recyclable hydraulic actuator of a kind of energy.By using this system, the kinetic energy that energy can be both hydraulic cylinder piston rod from the electric energy conversion being stored in electric accumulator, also can become electrical power storage electric energy storage device from the kinetic transformation of hydraulic cylinder piston rod.
For achieving the above object, the technical solution used in the present invention is:
The recyclable hydraulic actuator of energy, by electric energy storage device, electric machine controller, motor, element, the first hydraulic control individual event valve, the second hydraulic control individual event valve and oil hydraulic cylinder form, and wherein electric energy storage device and motor are electrically connected to, and electric machine controller and motor are electrically connected to; This actuator also comprises a hydraulic oil container, and described motor is coaxially connected with described element, and described the first hydraulic control individual event valve, described the second hydraulic control individual event valve and described hydraulic oil container form feed circuit jointly; Described element filler opening is connected respectively large chamber and the loculus of described oil hydraulic cylinder with oil outlet by oil pipe; One end of described the second hydraulic control individual event valve is connected with the large chamber of described oil hydraulic cylinder and the filler opening of described element, and the other end is connected with described hydraulic oil container with one end of described the first hydraulic control individual event valve; The oil outlet of described first one end of hydraulic control individual event valve and the loculus of described oil hydraulic cylinder and described element is connected, and the other end is connected with described hydraulic oil container with one end of described the second hydraulic control individual event valve.
The above-mentioned recyclable hydraulic actuator of a kind of energy, wherein said element is to regulate by controlling swash plate angle.
The manner of execution of the above-mentioned recyclable hydraulic actuator of energy, wherein: when described hydraulic cylinder piston rod initiatively advances, under the control of described electric machine controller, element rotation described in described driven by motor, get high voltage control oil and enter the large chamber of described oil hydraulic cylinder, thereby described the first hydraulic control individual event valve is opened, and the hydraulic oil in hydraulic oil container adds in loop.
The manner of execution of the above-mentioned recyclable hydraulic actuator of energy, wherein: when described hydraulic cylinder piston rod initiatively retreats, under the control of described electric machine controller, described motor drives described element to get the loculus that high voltage control oil enters described oil hydraulic cylinder, high voltage control oil is opened described the second hydraulic control individual event valve, and part hydraulic oil flows back to described hydraulic oil container.
The manner of execution of the above-mentioned recyclable hydraulic actuator of energy, wherein: when described hydraulic cylinder piston rod is under external force during passive retreating, the main shaft rotation of the large chamber of described oil hydraulic cylinder high voltage control oil driving element, high voltage control oil is opened described the first hydraulic control individual event valve, part hydraulic oil flows back to described hydraulic oil container, and part hydraulic oil is inhaled into described oil hydraulic cylinder loculus.
The manner of execution of the above-mentioned recyclable hydraulic actuator of energy, wherein: when described hydraulic cylinder piston rod is under external force during passive advancing, the main shaft rotation of described oil hydraulic cylinder loculus high voltage control oil driving element, high voltage control oil is opened described the second hydraulic control individual event valve, and the hydraulic oil in described hydraulic oil container adds in loop.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of patent of the present invention;
Fig. 2 is the first executive mode intention of patent of the present invention;
Fig. 3 is the second executive mode schematic diagram of patent of the present invention;
Fig. 4 is the 3rd clock executive mode schematic diagram of patent of the present invention;
Fig. 5 is the 4th kind of executive mode schematic diagram of patent of the present invention.
Embodiment
The embodiment of patent of the present invention is provided below in conjunction with accompanying drawing:
As Fig. 1 and the recyclable hydraulic actuator of energy, by electric energy storage device 1, electric machine controller 2, motor 3, element 4, the first hydraulic control individual event valve 5, the second hydraulic control individual event valve 8 and oil hydraulic cylinder 7 form, and wherein electric energy storage device 1 and motor 3 are electrically connected to, and electric machine controller 2 and motor 3 are electrically connected to; This actuator also comprises a hydraulic oil container 6, and motor 3 is coaxially connected with element 4, the first hydraulic control individual event valve 5, the second hydraulic control individual event valve 8 and hydraulic oil container 6 common composition feed circuits; Element 4 filler openings and oil outlet are respectively by large chamber and the loculus of oil pipe connecting fluid cylinder pressure 7; One end of the second hydraulic control individual event valve 8 is connected with the filler opening of element 4 with the large chamber of oil hydraulic cylinder 7, and the other end is connected with hydraulic oil container 6 with one end of the first hydraulic control individual event valve 5; One end of the first hydraulic control individual event valve 5 is connected with the oil outlet of element 4 with the loculus of oil hydraulic cylinder 7, and the other end is connected with hydraulic oil container 6 with one end of the second hydraulic control individual event valve 8.
Working principle first as shown in Figure 2, when the piston rod of oil hydraulic cylinder 7 need to initiatively advance, motor 3 is under the control of electric machine controller 2, by the electric energy conversion storing in electric energy storage device 1, it is rotation function, driving element 4 is got the large chamber that high pressure oil enters oil hydraulic cylinder 7, and high voltage control oil is opened the first hydraulic control individual event valve 5, and the hydraulic oil that hydraulic oil container is 6 li adds in loop, the flow direction of hydraulic oil is as shown in black arrow in Fig. 2, and energy flows along the direction of hollow arrow shown in Fig. 2.
The recyclable hydraulic actuator of energy as shown in Figure 3, when the piston rod of oil hydraulic cylinder 7 need to initiatively retreat, motor 3 is under the control of electric machine controller 2, by the electric energy conversion storing in electric energy storage device 1, it is rotation function, driving element 4 is got the loculus that high pressure oil enters oil hydraulic cylinder 7, high voltage control oil is opened the second hydraulic control individual event valve 8, and part hydraulic oil flows back to hydraulic oil container 6; The flow direction of hydraulic oil is as shown in black arrow in Fig. 3, and energy flows along the direction of hollow arrow shown in Fig. 3.
The recyclable hydraulic actuator of energy as shown in Figure 4, under the effect in external force of the piston rod of oil hydraulic cylinder 7 during passive retreating, the main shaft rotation of oil hydraulic cylinder 7 large chamber high pressure oil driving elements 4, high voltage control oil is opened the first hydraulic control individual event valve 5, part hydraulic oil flows back to hydraulic oil container 6, part hydraulic oil is inhaled into oil hydraulic cylinder 7 loculuses, and running of hydraulic power oil direction is as shown in black arrow in Fig. 4; The rotary main shaft drive motor 3 rotary main shaft rotations of element 4, under the control of electric machine controller 2, this rotation function is converted into power storage in electric energy storage device 1, and energy flows along Fig. 4 hollow core direction of arrow.
The recyclable hydraulic actuator of energy as shown in Figure 5, under the effect in external force of the piston rod of oil hydraulic cylinder 7 during passive advancing, the main shaft rotation of oil hydraulic cylinder 7 loculus high pressure oil driving elements 4, high voltage control oil is opened the second hydraulic control individual event valve 8, the hydraulic oil that hydraulic oil container is 6 li adds in loop, and running of hydraulic power oil direction is as shown in black arrow in Fig. 5; The rotary main shaft drive motor 3 rotary main shaft rotations of element 4, under the control of electric machine controller 2, this rotation function is converted into power storage in electric energy storage device 1, and energy flows along Fig. 5 hollow core direction of arrow.
Above specific embodiments of the invention be have been described in detail, but the present invention is not restricted to specific embodiment described above, it is just as example.To those skilled in the art, any equivalent modifications that this invention is carried out and alternative also all among category of the present invention.Therefore, equalization conversion and the modification done without departing from the spirit and scope of the invention, all should contain within the scope of the invention.
Claims (5)
1. the recyclable hydraulic actuator of energy, by electric energy storage device (1), electric machine controller (2), motor (3), element (4), the first hydraulic control individual event valve (5), the second hydraulic control individual event valve (8) and oil hydraulic cylinder (7) form, wherein electric energy storage device (1) and motor (3) are electrically connected to, electric machine controller (2) and motor (3) are electrically connected to, it is characterized in that: this actuator also comprises a hydraulic oil container (6), wherein said motor (3) is coaxially connected with described element (4), described the first hydraulic control individual event valve (5), described the second hydraulic control individual event valve (8) forms feed circuit jointly with described hydraulic oil container, described element (4) filler opening is connected respectively large chamber and the loculus of described oil hydraulic cylinder (7) with oil outlet by oil pipe, one end of described the second Pilot operated check valve (8) is connected with the filler opening of described element (4) with the large chamber of described oil hydraulic cylinder (7), and the other end is connected with described hydraulic oil container (6) with one end of described Pilot operated check valve (5), one end of described the first hydraulic control individual event valve (5) is connected with the oil outlet of described element (4) with the loculus of described oil hydraulic cylinder (7), and the other end is connected with described hydraulic oil container (6) with one end of described hydraulic control individual event valve (8), described element (4) is to regulate by controlling swash plate angle.
2. the manner of execution of the recyclable hydraulic actuator of energy as claimed in claim 1, it is characterized in that: when described oil hydraulic cylinder (7) piston rod initiatively advances, under the control of described electric machine controller (2), described motor (3) drives described element (4) rotation, get high voltage control oil and enter the large chamber of described oil hydraulic cylinder (7), thereby described the first hydraulic control individual event valve (5) is opened, and the inner hydraulic oil of described hydraulic oil container (6) adds in loop.
3. the manner of execution of the recyclable hydraulic actuator of energy as claimed in claim 1, it is characterized in that: when described oil hydraulic cylinder (7) piston rod initiatively retreats, under the control of described electric machine controller (2), described motor (3) drives described element (4) to get the loculus that high voltage control oil enters described oil hydraulic cylinder (7), high voltage control oil is opened described the second hydraulic control individual event valve (8), and part hydraulic oil flows back to force feed case (6) described in liquid.
4. the manner of execution of the recyclable hydraulic actuator of energy as claimed in claim 1, it is characterized in that: when described oil hydraulic cylinder (7) piston rod is under external force during passive retreating, the large chamber of described oil hydraulic cylinder (7) high voltage control oil drives the main shaft rotation of described element (4), high voltage control oil is opened described the first hydraulic control individual event valve (5), part hydraulic oil flows back to described hydraulic oil container (6), and part hydraulic oil is inhaled into described oil hydraulic cylinder (7) loculus.
5. the manner of execution of the recyclable hydraulic actuator of energy as claimed in claim 1, it is characterized in that: when described oil hydraulic cylinder (7) piston rod is under external force during passive advancing, the main shaft rotation of described oil hydraulic cylinder (7) loculus high voltage control oil driving element (4), high voltage control oil is opened described the second hydraulic control individual event valve (8), and the inner hydraulic oil of described hydraulic oil container (6) adds in loop.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110314368.1A CN102322461B (en) | 2011-10-17 | 2011-10-17 | Hydraulic actuating mechanism and method for recycling energy |
| PCT/CN2012/074367 WO2013056545A1 (en) | 2011-10-17 | 2012-04-19 | Energy-recoverable hydraulic actuator and actuating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110314368.1A CN102322461B (en) | 2011-10-17 | 2011-10-17 | Hydraulic actuating mechanism and method for recycling energy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102322461A CN102322461A (en) | 2012-01-18 |
| CN102322461B true CN102322461B (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110314368.1A Expired - Fee Related CN102322461B (en) | 2011-10-17 | 2011-10-17 | Hydraulic actuating mechanism and method for recycling energy |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102322461B (en) |
| WO (1) | WO2013056545A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322461B (en) * | 2011-10-17 | 2014-04-02 | 上海三一重机有限公司 | Hydraulic actuating mechanism and method for recycling energy |
| CN103437395A (en) * | 2013-09-12 | 2013-12-11 | 上海三一重机有限公司 | Hydraulic loop for floating function of working device and excavator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101230871A (en) * | 2008-02-27 | 2008-07-30 | 哈尔滨工业大学 | Flywheel energy storage type secondary regulation flow coupling system |
| KR20080107494A (en) * | 2007-06-07 | 2008-12-11 | 울산대학교 산학협력단 | Potential energy regenerative device and regenerative method for hydraulic cylinder |
| CN201297307Y (en) * | 2008-11-11 | 2009-08-26 | 浙江大学 | Hydraulic motor energy recycling system used as energy accumulator for hybrid electric engineering machinery |
| CN101680208A (en) * | 2007-05-18 | 2010-03-24 | 沃尔沃建筑设备公司 | A method for recuperating potential energy during a lowering operation of a load |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002081402A (en) * | 2000-09-08 | 2002-03-22 | Taiyo Ltd | Fluid pressure cylinder device |
| JP4632583B2 (en) * | 2001-07-10 | 2011-02-16 | 住友建機株式会社 | Electric closed circuit hydraulic cylinder drive |
| JP2003074518A (en) * | 2001-09-05 | 2003-03-12 | Kobelco Contstruction Machinery Ltd | Hydraulic cylinder circuit |
| DE102004061559A1 (en) * | 2004-12-21 | 2006-06-29 | Brueninghaus Hydromatik Gmbh | Hydraulic drive |
| JP2006336805A (en) * | 2005-06-03 | 2006-12-14 | Shin Caterpillar Mitsubishi Ltd | Control device of work machine |
| DE102006060351B8 (en) * | 2006-12-20 | 2008-07-24 | Sauer-Danfoss Gmbh & Co Ohg | Hydraulic circuit with energy recovery |
| US8869521B2 (en) * | 2009-04-02 | 2014-10-28 | Husco International, Inc. | Fluid working machine with cylinders coupled to split exterior ports by electrohydraulic valves |
| CN102322461B (en) * | 2011-10-17 | 2014-04-02 | 上海三一重机有限公司 | Hydraulic actuating mechanism and method for recycling energy |
-
2011
- 2011-10-17 CN CN201110314368.1A patent/CN102322461B/en not_active Expired - Fee Related
-
2012
- 2012-04-19 WO PCT/CN2012/074367 patent/WO2013056545A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680208A (en) * | 2007-05-18 | 2010-03-24 | 沃尔沃建筑设备公司 | A method for recuperating potential energy during a lowering operation of a load |
| KR20080107494A (en) * | 2007-06-07 | 2008-12-11 | 울산대학교 산학협력단 | Potential energy regenerative device and regenerative method for hydraulic cylinder |
| CN101230871A (en) * | 2008-02-27 | 2008-07-30 | 哈尔滨工业大学 | Flywheel energy storage type secondary regulation flow coupling system |
| CN201297307Y (en) * | 2008-11-11 | 2009-08-26 | 浙江大学 | Hydraulic motor energy recycling system used as energy accumulator for hybrid electric engineering machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013056545A1 (en) | 2013-04-25 |
| CN102322461A (en) | 2012-01-18 |
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