JPH0448969B2 - - Google Patents
Info
- Publication number
- JPH0448969B2 JPH0448969B2 JP60221127A JP22112785A JPH0448969B2 JP H0448969 B2 JPH0448969 B2 JP H0448969B2 JP 60221127 A JP60221127 A JP 60221127A JP 22112785 A JP22112785 A JP 22112785A JP H0448969 B2 JPH0448969 B2 JP H0448969B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- load
- branch pipe
- signal
- pressure
- 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 - Lifetime
Links
- 239000010720 hydraulic oil Substances 0.000 claims description 24
- 230000007935 neutral effect Effects 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 230000001419 dependent effect Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 13
- 238000013016 damping Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- 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
- F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
-
- 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
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
- F15B2211/3053—In combination with a pressure compensating valve
- F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and 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
- F15B2211/575—Pilot pressure control
- F15B2211/5756—Pilot pressure control for opening a 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
- F15B2211/6052—Load sensing circuits having valve means between output member and the load sensing circuit using check valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3436246A DE3436246C2 (de) | 1984-10-03 | 1984-10-03 | Steuereinrichtung für einen hydraulisch betriebenen Verbraucher |
DE3436246.0 | 1984-10-03 | ||
DE3444455.6 | 1984-12-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6188002A JPS6188002A (ja) | 1986-05-06 |
JPH0448969B2 true JPH0448969B2 (zh) | 1992-08-10 |
Family
ID=6246990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60221127A Granted JPS6188002A (ja) | 1984-10-03 | 1985-10-03 | 油圧駆動されるロードのための制御装置 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS6188002A (zh) |
DE (1) | DE3436246C2 (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991002167A1 (en) * | 1989-07-27 | 1991-02-21 | Hitachi Construction Machinery Co., Ltd. | Device for controlling hydraulic pump |
WO1991010833A1 (en) * | 1990-01-11 | 1991-07-25 | Hitachi Construction Machinery Co., Ltd. | Valve device and hydraulic driving device |
US5285642A (en) * | 1990-09-28 | 1994-02-15 | Hitachi Construction Machinery Co., Ltd. | Load sensing control system for hydraulic machine |
DE4241848C2 (de) * | 1992-12-11 | 1994-12-22 | Danfoss As | Gesteuertes Proportionalventil |
DE4241846C2 (de) * | 1992-12-11 | 1996-09-26 | Danfoss As | Hydraulisches System |
DE10308484A1 (de) * | 2003-02-26 | 2004-09-09 | Bosch Rexroth Ag | Hydraulische Steueranordnung |
DE102005011395A1 (de) * | 2005-03-11 | 2006-09-14 | Bosch Rexroth Ag | Hydraulische Steueranordnung |
SE533917C2 (sv) * | 2009-06-24 | 2011-03-01 | Nordhydraulic Ab | Ventilanordning |
DE102015122915A1 (de) * | 2015-12-29 | 2017-06-29 | Xcmg European Research Center Gmbh | Hydraulische Steuerung |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57154502A (en) * | 1981-03-19 | 1982-09-24 | Daikin Ind Ltd | Mode-changeable flow control circuit |
JPS5813202A (ja) * | 1981-07-14 | 1983-01-25 | Daikin Ind Ltd | 圧力補償付流量制御装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2514624C3 (de) * | 1975-04-03 | 1986-10-23 | Danfoss A/S, Nordborg | Steuereinrichtung für mindestens einen hydraulisch betriebenen doppeltwirkenden Verbraucher |
DE2931240A1 (de) * | 1979-08-01 | 1981-02-05 | Zahnradfabrik Friedrichshafen | Hilfskraftlenkung |
US4418710A (en) * | 1981-10-05 | 1983-12-06 | Eaton Corporation | Pilot control valve for load sensing hydraulic system |
-
1984
- 1984-10-03 DE DE3436246A patent/DE3436246C2/de not_active Expired
-
1985
- 1985-10-03 JP JP60221127A patent/JPS6188002A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57154502A (en) * | 1981-03-19 | 1982-09-24 | Daikin Ind Ltd | Mode-changeable flow control circuit |
JPS5813202A (ja) * | 1981-07-14 | 1983-01-25 | Daikin Ind Ltd | 圧力補償付流量制御装置 |
Also Published As
Publication number | Publication date |
---|---|
DE3436246A1 (de) | 1986-04-03 |
JPS6188002A (ja) | 1986-05-06 |
DE3436246C2 (de) | 1986-09-11 |
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