GB764182A - Improvements in or relating to a hydraulic regulating device - Google Patents
Improvements in or relating to a hydraulic regulating deviceInfo
- Publication number
- GB764182A GB764182A GB2285953A GB2285953A GB764182A GB 764182 A GB764182 A GB 764182A GB 2285953 A GB2285953 A GB 2285953A GB 2285953 A GB2285953 A GB 2285953A GB 764182 A GB764182 A GB 764182A
- Authority
- GB
- United Kingdom
- Prior art keywords
- exhaust
- servomotor
- pilot valve
- valve
- casing
- 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
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
- F15B13/0435—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 sliding valves
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
Abstract
764,182. Fluid-pressure servomotor-control systems. NORTH AMERICAN AVIATION, Inc. Aug. 19, 1953, No. 22859/53. Class 135. An hydraulic regulating device for controlling a double-acting servomotor comprises a pilot valve 24, Fig. 1, continuously reciprocated by solenoids 29, 30 actuated by a constant frequency alternating current of substantially rectangular waveform and a slave valve 2 slidable in a casing 1 having a branched inlet port 10 an exhaust port 11 and motor ports 13, 14 to control the supply and exhaust of pressure liquid to and from the servomotor. The slave valve is centred in a bore 3 in the casing by springs 4, 5 and formed with lands 17, 18 co-operating with the ports 13, 14 and lands 15, 16 having grooves 19,9 therethrough connecting the inlet port 10 with end chambers 6a, 7a. Ducts 21, 22 in the casing connect these end chambers to a bore 20 on opposite sides of a centre land 27 of the pilot valve, which land normally oscillates about an exhaust duct 23 to exhaust equal amounts of liquid from the two end chambers to maintain the slave valve in balance and the ports 13, 14 masked. The solenoids 29, 30 are energized by current. received from push-pull drivers 33, 34, Fig. 2, driven by time-modulator triodes 35, 49 pulsed by blocking triode oscillators 36, 47, a pulse transformer 43, condenser 44 and resistances 45, 46. To move the pilot valve a D.C. imput signal is applied to the grid of the triode 35 by means of a diode 51 and resistances 52, 53, which signal timemodulates the pulse output from the triode 47 to the triodes 35, 49. The modulated signal is then sent to the driver 33 and through a phase inverter 54 to the driver 34 so that the positive and negative parts of the rectangular wave are of unequal duration. The pilot valve then moves so that for each cycle the land 27 connects one of the chambers 6a, 7a to exhaust for a longer period of time than the other chamber to unbalance the pressures acting on the two ends of the slave valve 2 which moves to connect one side of the servomotor to pressure and the other side to exhaust.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2285953A GB764182A (en) | 1953-08-19 | 1953-08-19 | Improvements in or relating to a hydraulic regulating device |
| FR1087059D FR1087059A (en) | 1953-08-19 | 1953-09-17 | Hydraulic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2285953A GB764182A (en) | 1953-08-19 | 1953-08-19 | Improvements in or relating to a hydraulic regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB764182A true GB764182A (en) | 1956-12-19 |
Family
ID=10186190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2285953A Expired GB764182A (en) | 1953-08-19 | 1953-08-19 | Improvements in or relating to a hydraulic regulating device |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1087059A (en) |
| GB (1) | GB764182A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1282055B (en) * | 1962-09-27 | 1968-11-07 | Elmeg | Arrangement for the control of the hydraulically operated travel switch cylinder of an electric motor vehicle |
| CN106050800A (en) * | 2016-07-16 | 2016-10-26 | 德州华海石油机械股份有限公司 | Electro-hydraulic reversing device for hydraulic profile control injection pump |
-
1953
- 1953-08-19 GB GB2285953A patent/GB764182A/en not_active Expired
- 1953-09-17 FR FR1087059D patent/FR1087059A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1282055B (en) * | 1962-09-27 | 1968-11-07 | Elmeg | Arrangement for the control of the hydraulically operated travel switch cylinder of an electric motor vehicle |
| CN106050800A (en) * | 2016-07-16 | 2016-10-26 | 德州华海石油机械股份有限公司 | Electro-hydraulic reversing device for hydraulic profile control injection pump |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1087059A (en) | 1955-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2655940A (en) | Time-modulated two-stage hydraulic valve | |
| GB685353A (en) | Improvements in or relating to electro-hydraulic servo mechanism | |
| GB917588A (en) | Pressure-flow servo valve | |
| GB812927A (en) | Improvements in or relating to a servo-control for a fluid-pump or motor | |
| GB1411551A (en) | Valving device | |
| ES403633A1 (en) | Electrically operated valves or distributors for controlling fluid under pressure | |
| GB764182A (en) | Improvements in or relating to a hydraulic regulating device | |
| GB1152633A (en) | Improvements in or relating to Pure Fluid Modulators | |
| GB1151525A (en) | Multi-Input Diaphragm Logic Element | |
| US3390692A (en) | Pneumatic signal generator | |
| US2996045A (en) | Time modulated hydraulic servo valve | |
| GB1178048A (en) | Fluidic Temperature Sensors | |
| GB985624A (en) | Improved fluid control valve | |
| GB558398A (en) | Improvements in means for regulating and controlling the flow of fluid from pneumaticcompressors and hydraulic pumps | |
| GB599933A (en) | Compensator-accumulator unit for hydraulic systems | |
| US2533587A (en) | Controller | |
| GB1475144A (en) | High performance variable amplitude and frequency hydraulic oscillator | |
| GB1140582A (en) | Fluid-pressure servomechanism | |
| GB718171A (en) | Improvements in or relating to servo systems | |
| GB562923A (en) | Arrangements in pressure medium driven remote control systems | |
| GB835814A (en) | Hydraulic control valve apparatus | |
| GB643440A (en) | Improvements in or relating to electrically operated apparatus for controlling temperatures | |
| GB588583A (en) | Improvements in or relating to electrically controlled hydraulic actuating systems | |
| GB948174A (en) | Fluid control valve | |
| GB643278A (en) | Improvements in and relating to speed control apparatus |