EP1415095A1 - Dispositif de commande destinee au mouvement continu d'un moteur d'un servomoteur hydraulique - Google Patents
Dispositif de commande destinee au mouvement continu d'un moteur d'un servomoteur hydrauliqueInfo
- Publication number
- EP1415095A1 EP1415095A1 EP01974163A EP01974163A EP1415095A1 EP 1415095 A1 EP1415095 A1 EP 1415095A1 EP 01974163 A EP01974163 A EP 01974163A EP 01974163 A EP01974163 A EP 01974163A EP 1415095 A1 EP1415095 A1 EP 1415095A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- throttle
- piston
- bore
- control device
- annular gap
- 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
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
- F15B11/006—Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link
-
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0405—Valve members; Fluid interconnections therefor for seat valves, i.e. poppet 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
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
- F15B13/0433—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being pressure control 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
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
- F15B2211/30575—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve in a Wheatstone Bridge arrangement (also half bridges)
-
- 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
- F15B2211/30—Directional control
- F15B2211/35—Directional control combined with flow control
- F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in 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
- F15B2211/30—Directional control
- F15B2211/35—Directional control combined with flow control
- F15B2211/353—Flow control by regulating means in return line, i.e. meter-out control
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Servomotors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2001/009264 WO2003014576A1 (fr) | 2001-08-10 | 2001-08-10 | Dispositif de commande destinee au mouvement continu d'un moteur d'un servomoteur hydraulique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1415095A1 true EP1415095A1 (fr) | 2004-05-06 |
EP1415095B1 EP1415095B1 (fr) | 2005-12-14 |
Family
ID=8164540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01974163A Expired - Lifetime EP1415095B1 (fr) | 2001-08-10 | 2001-08-10 | Dispositif de commande destinee au mouvement continu d'un moteur d'un servomoteur hydraulique |
Country Status (5)
Country | Link |
---|---|
US (1) | US7028599B2 (fr) |
EP (1) | EP1415095B1 (fr) |
AT (1) | ATE313016T1 (fr) |
DE (1) | DE50108414D1 (fr) |
WO (1) | WO2003014576A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8096227B2 (en) * | 2008-07-29 | 2012-01-17 | Caterpillar Inc. | Hydraulic system having regeneration modulation |
US9328747B2 (en) * | 2013-03-15 | 2016-05-03 | Mts Systems Corporation | Servo actuator load vector generating system |
US10281055B2 (en) * | 2016-02-09 | 2019-05-07 | Parker-Hannifin Corporation | Hydraulic servo valve |
US10798866B2 (en) | 2018-08-10 | 2020-10-13 | Cnh Industrial America Llc | Depth control system for raising and lowering a work unit of an implement |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2672731A (en) * | 1951-08-01 | 1954-03-23 | Electrol Inc | Self-contained power actuator |
US3433131A (en) * | 1967-08-22 | 1969-03-18 | Ingebret Soyland | Control systems for hydraulic power units |
DE2920249A1 (de) * | 1978-05-20 | 1979-11-22 | Girling Ltd | Bremskraftverstaerker fuer fahrzeugbremssysteme |
US4201052A (en) * | 1979-03-26 | 1980-05-06 | Sperry Rand Corporation | Power transmission |
US4437385A (en) * | 1982-04-01 | 1984-03-20 | Deere & Company | Electrohydraulic valve system |
JP2532081B2 (ja) * | 1987-01-30 | 1996-09-11 | 日産自動車株式会社 | パワ−ステアリングの油圧制御装置 |
FR2715903B1 (fr) * | 1994-02-04 | 1996-05-03 | Alliedsignal Europ Services | Servomoteur d'assistance de freinage, à sécurité accrue. |
FR2727922A1 (fr) * | 1994-12-09 | 1996-06-14 | Alliedsignal Europ Services | Servomoteur a enveloppe deformable |
DE19500749C2 (de) * | 1995-01-12 | 2000-12-07 | Danfoss As | Drei- oder Mehr-Wege-Ventil |
DE19601662A1 (de) * | 1996-01-18 | 1997-07-24 | Joerg J Prof Dipl Ing Linser | Servoventil in Kartuschenausführung, vorzugsweise für Hilfskraftlenkungen |
US6691604B1 (en) * | 1999-09-28 | 2004-02-17 | Caterpillar Inc | Hydraulic system with an actuator having independent meter-in meter-out control |
-
2001
- 2001-08-10 US US10/486,483 patent/US7028599B2/en not_active Expired - Fee Related
- 2001-08-10 AT AT01974163T patent/ATE313016T1/de not_active IP Right Cessation
- 2001-08-10 EP EP01974163A patent/EP1415095B1/fr not_active Expired - Lifetime
- 2001-08-10 DE DE50108414T patent/DE50108414D1/de not_active Expired - Lifetime
- 2001-08-10 WO PCT/EP2001/009264 patent/WO2003014576A1/fr active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO03014576A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE50108414D1 (de) | 2006-01-19 |
US20040187675A1 (en) | 2004-09-30 |
EP1415095B1 (fr) | 2005-12-14 |
ATE313016T1 (de) | 2005-12-15 |
WO2003014576A1 (fr) | 2003-02-20 |
US7028599B2 (en) | 2006-04-18 |
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