JPS4957276A - - Google Patents
Info
- Publication number
- JPS4957276A JPS4957276A JP7854673A JP7854673A JPS4957276A JP S4957276 A JPS4957276 A JP S4957276A JP 7854673 A JP7854673 A JP 7854673A JP 7854673 A JP7854673 A JP 7854673A JP S4957276 A JPS4957276 A JP S4957276A
- Authority
- JP
- Japan
- 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.)
- Pending
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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- 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
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
-
- 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
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
- F15B2211/50572—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using a pressure compensating valve for controlling the pressure difference across a flow 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
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5156—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a return line and a 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
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/528—Pressure 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
-
- 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
- F15B2211/75—Control of speed of the output member
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Multiple-Way Valves (AREA)
- Flow Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US27130272A | 1972-07-13 | 1972-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4957276A true JPS4957276A (en) | 1974-06-04 |
Family
ID=23035008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7854673A Pending JPS4957276A (en) | 1972-07-13 | 1973-07-13 |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS4957276A (en) |
| AU (1) | AU470644B2 (en) |
| BE (1) | BE802104A (en) |
| BR (1) | BR7305256D0 (en) |
| CA (1) | CA991956A (en) |
| DE (1) | DE2335702A1 (en) |
| FR (1) | FR2193159B1 (en) |
| GB (1) | GB1388526A (en) |
| IT (1) | IT991256B (en) |
| NL (1) | NL7309652A (en) |
| SE (1) | SE399305B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5272074A (en) * | 1975-12-06 | 1977-06-16 | Kawasaki Heavy Ind Ltd | Multicontrol valve available pressure compensation |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2404524C2 (en) * | 1974-01-31 | 1982-04-01 | Elektro-Mechanik Gmbh, 5963 Wenden | Multi-way servo valve |
| US4036245A (en) * | 1975-12-29 | 1977-07-19 | Sundstrand Corporation | Pressure compensated hydraulic control valve |
| US4569367A (en) * | 1985-01-14 | 1986-02-11 | Commercial Shearing, Inc. | Hydraulic valve inlet unloaders |
-
1973
- 1973-07-02 GB GB3132473A patent/GB1388526A/en not_active Expired
- 1973-07-05 AU AU57748/73A patent/AU470644B2/en not_active Expired
- 1973-07-09 BE BE133284A patent/BE802104A/en unknown
- 1973-07-09 FR FR7325077A patent/FR2193159B1/fr not_active Expired
- 1973-07-10 SE SE7309690A patent/SE399305B/en unknown
- 1973-07-11 NL NL7309652A patent/NL7309652A/xx unknown
- 1973-07-12 CA CA176,342A patent/CA991956A/en not_active Expired
- 1973-07-12 IT IT2653373A patent/IT991256B/en active
- 1973-07-13 BR BR525673A patent/BR7305256D0/en unknown
- 1973-07-13 JP JP7854673A patent/JPS4957276A/ja active Pending
- 1973-07-13 DE DE19732335702 patent/DE2335702A1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5272074A (en) * | 1975-12-06 | 1977-06-16 | Kawasaki Heavy Ind Ltd | Multicontrol valve available pressure compensation |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7309652A (en) | 1974-01-15 |
| FR2193159A1 (en) | 1974-02-15 |
| BE802104A (en) | 1973-11-05 |
| BR7305256D0 (en) | 1974-08-15 |
| GB1388526A (en) | 1975-03-26 |
| AU5774873A (en) | 1975-01-09 |
| CA991956A (en) | 1976-06-29 |
| DE2335702A1 (en) | 1974-01-24 |
| AU470644B2 (en) | 1976-03-25 |
| SE399305B (en) | 1978-02-06 |
| FR2193159B1 (en) | 1976-04-30 |
| IT991256B (en) | 1975-07-30 |