WO2010136785A3 - Controlled hydraulic systems comprising a variable drive ratio device - Google Patents
Controlled hydraulic systems comprising a variable drive ratio device Download PDFInfo
- Publication number
- WO2010136785A3 WO2010136785A3 PCT/GB2010/050784 GB2010050784W WO2010136785A3 WO 2010136785 A3 WO2010136785 A3 WO 2010136785A3 GB 2010050784 W GB2010050784 W GB 2010050784W WO 2010136785 A3 WO2010136785 A3 WO 2010136785A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- controlled hydraulic
- drive ratio
- variable drive
- ratio device
- hydraulic systems
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- 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
- F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
- F15B11/055—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive by adjusting the pump output or bypass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0209—Rotational speed
-
- 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
- F15B2211/20507—Type of prime mover
- F15B2211/20523—Internal combustion engine
-
- 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
- F15B2211/20538—Type of pump constant 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
- F15B2211/255—Flow control functions
-
- 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
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6309—Electronic controllers using input signals representing a pressure the pressure being a pressure source supply 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6346—Electronic controllers using input signals representing a state of input means, e.g. joystick position
-
- 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
- F15B2211/6651—Control of the prime mover, e.g. control of the output torque or rotational speed
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
There is herein described a controlled hydraulic systems for operating machinery. More particularly, there is described a controlled hydraulic system (200) comprising a variable drive ratio device (214) interposed between a prime mover (210) and a fixed displacement pump (112) for controlling the operating speed of the pump (212) and hence the output flow in the hydraulic system.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/322,135 US20120070312A1 (en) | 2009-05-26 | 2010-05-13 | Controlled hydraulic systems |
EP10720663.3A EP2435712B1 (en) | 2009-05-26 | 2010-05-13 | Controlled hydraulic systems comprising a variable drive ratio device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0908982.2 | 2009-05-26 | ||
GBGB0908982.2A GB0908982D0 (en) | 2009-05-26 | 2009-05-26 | Controlled hydraulic systems |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010136785A2 WO2010136785A2 (en) | 2010-12-02 |
WO2010136785A3 true WO2010136785A3 (en) | 2011-03-31 |
Family
ID=40862949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2010/050784 WO2010136785A2 (en) | 2009-05-26 | 2010-05-13 | Controlled hydraulic systems |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120070312A1 (en) |
EP (1) | EP2435712B1 (en) |
GB (1) | GB0908982D0 (en) |
WO (1) | WO2010136785A2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4489623A (en) * | 1982-05-03 | 1984-12-25 | Caterpillar Tractor Co. | Axle shaft and pump drive mechanism |
DE10102655A1 (en) * | 2001-01-20 | 2002-07-25 | Joerg Wallaschek | Drive method for high pressure pump for common rail fuel injection systems has mechanical continuously adjustable transmission to connect IC engine and common rail high pressure pump |
US20060245934A1 (en) * | 2005-04-29 | 2006-11-02 | Caterpillar Inc. | System and method for controlling a fluid pump |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4024710A (en) * | 1976-03-25 | 1977-05-24 | Koehring Company | Load sensing hydraulic circuit having power matching means |
GB1582430A (en) * | 1976-12-22 | 1981-01-07 | Secr Defence | Variable ratio transmission systems |
US4555952A (en) * | 1984-06-08 | 1985-12-03 | Borg-Warner Corporation | Differential pressure sensor |
US4757886A (en) * | 1987-01-20 | 1988-07-19 | Ford Motor Company | Transmission clutch closed loop slip controller and method |
US4798527A (en) * | 1988-03-07 | 1989-01-17 | Vickers, Incorporated | Control system for injection molding machine |
US5092824A (en) * | 1990-10-09 | 1992-03-03 | Connett Donald C | Pump output control system with high efficiency hydromechanical variable speed drive |
US5579642A (en) * | 1995-05-26 | 1996-12-03 | Husco International, Inc. | Pressure compensating hydraulic control system |
DE69821750T2 (en) * | 1997-04-18 | 2006-06-22 | Transport Energy Systems Pty. Ltd., Holland Park | Hybrid drive system for use in vehicle operation |
US6139280A (en) * | 1998-01-21 | 2000-10-31 | Compressor Systems, Inc. | Electric switch gauge for screw compressors |
JP3868112B2 (en) * | 1998-05-22 | 2007-01-17 | 株式会社小松製作所 | Control device for hydraulic drive machine |
JP2002174332A (en) * | 2000-09-18 | 2002-06-21 | Fuji Heavy Ind Ltd | Work vehicle |
JP4098955B2 (en) * | 2000-12-18 | 2008-06-11 | 日立建機株式会社 | Construction machine control equipment |
US6591697B2 (en) * | 2001-04-11 | 2003-07-15 | Oakley Henyan | Method for determining pump flow rates using motor torque measurements |
US6761029B2 (en) * | 2001-12-13 | 2004-07-13 | Caterpillar Inc | Swing control algorithm for hydraulic circuit |
US6637461B2 (en) * | 2002-03-08 | 2003-10-28 | Husco International, Inc. | Electrically operated hydraulic actuator with force feedback position sensing |
US6761027B2 (en) * | 2002-06-27 | 2004-07-13 | Caterpillar Inc | Pressure-compensated hydraulic circuit with regeneration |
US7487707B2 (en) * | 2006-09-27 | 2009-02-10 | Husco International, Inc. | Hydraulic valve assembly with a pressure compensated directional spool valve and a regeneration shunt valve |
-
2009
- 2009-05-26 GB GBGB0908982.2A patent/GB0908982D0/en not_active Ceased
-
2010
- 2010-05-13 WO PCT/GB2010/050784 patent/WO2010136785A2/en active Application Filing
- 2010-05-13 US US13/322,135 patent/US20120070312A1/en not_active Abandoned
- 2010-05-13 EP EP10720663.3A patent/EP2435712B1/en not_active Not-in-force
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4489623A (en) * | 1982-05-03 | 1984-12-25 | Caterpillar Tractor Co. | Axle shaft and pump drive mechanism |
DE10102655A1 (en) * | 2001-01-20 | 2002-07-25 | Joerg Wallaschek | Drive method for high pressure pump for common rail fuel injection systems has mechanical continuously adjustable transmission to connect IC engine and common rail high pressure pump |
US20060245934A1 (en) * | 2005-04-29 | 2006-11-02 | Caterpillar Inc. | System and method for controlling a fluid pump |
Also Published As
Publication number | Publication date |
---|---|
US20120070312A1 (en) | 2012-03-22 |
WO2010136785A2 (en) | 2010-12-02 |
GB0908982D0 (en) | 2009-07-01 |
EP2435712A2 (en) | 2012-04-04 |
EP2435712B1 (en) | 2015-04-22 |
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