GB1181843A - Hydraulic Servo Control Systems - Google Patents
Hydraulic Servo Control SystemsInfo
- Publication number
- GB1181843A GB1181843A GB2869767A GB2869767A GB1181843A GB 1181843 A GB1181843 A GB 1181843A GB 2869767 A GB2869767 A GB 2869767A GB 2869767 A GB2869767 A GB 2869767A GB 1181843 A GB1181843 A GB 1181843A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spool
- pressure
- piston
- fluid
- control systems
- 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
Links
- 239000012530 fluid Substances 0.000 abstract 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
- F15B13/042—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
- F15B13/0438—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 of the nozzle-flapper type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
Abstract
1,181,843. Fluid-pressure servomotor systems. SANDERS ASSOCIATES INC. June 21, 1967, No.28697/67. Heading G3P. In a hydraulic servocontrol system, an electrical input signal positions flapper 24 to generate a pressure difference across the ends of spool 31 to move the latter to control the supply of fluid to opposite sides of piston 60. To render the response rate of the latter substantially independant of the magnitude and direction of its load, the spool has grooves 70, 71 which connect the low-pressure side of the jack to the pilot return chamber 78 to vary the pressure in the latter, and thus the pressure difference across the spool, according to the response of the piston. In the null position, the return chamber 78 bleeds through restriction 80; alternatively this bleed can be accommodated by underlap on the spool or by dither of the latter. The restrictions 76, 77 are temperature-sensitive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2869767A GB1181843A (en) | 1967-06-21 | 1967-06-21 | Hydraulic Servo Control Systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2869767A GB1181843A (en) | 1967-06-21 | 1967-06-21 | Hydraulic Servo Control Systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1181843A true GB1181843A (en) | 1970-02-18 |
Family
ID=10279661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2869767A Expired GB1181843A (en) | 1967-06-21 | 1967-06-21 | Hydraulic Servo Control Systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1181843A (en) |
-
1967
- 1967-06-21 GB GB2869767A patent/GB1181843A/en not_active Expired
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