GB942998A - A fluid-pressure control system - Google Patents
A fluid-pressure control systemInfo
- Publication number
- GB942998A GB942998A GB1029360A GB1029360A GB942998A GB 942998 A GB942998 A GB 942998A GB 1029360 A GB1029360 A GB 1029360A GB 1029360 A GB1029360 A GB 1029360A GB 942998 A GB942998 A GB 942998A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluid
- conduit
- pressure
- relay
- pressures
- 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 5
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/002—Electrical failure
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B6/00—Internal feedback arrangements for obtaining particular characteristics, e.g. proportional, integral or differential
- G05B6/05—Internal feedback arrangements for obtaining particular characteristics, e.g. proportional, integral or differential fluidic
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/05—Safety arrangements fluidic
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
942,998. Fluid-pressure servomotor control systems. LEUNA-WERKE WALTER ULBRICHT VEB. March 23,1960 [April 6,1959], No. 10293/60. Heading G3P. A fluid-pressure actuated diaphragm 2, Fig. 1, is coupled to an element, e.g. a valve to be adjusted, by a member 4 provided with a rack portion engageable by a pinion 9 integral with an axially movable clutch-part 10 that co-operates with a fixed clutch part 11 having teeth meshing with a worm 12. Upon failure of the fluid supply a locking diaphragm 6 is moved leftwardly by a spring 7 whereupon the pinion 9 is carried into engagement with the rack and the clutch parts abut so that the member 4 is held in that position but may be operated manually or by some other means from the worm 12. In a modification, fluid is supplied to the control system via a reducing valve 16, Fig. 2, whilst the pressure in the conduit 1, which opens to the diaphragm 2, is controlled by a regulator 14; the pressure in the control system is sensed by a measuring device 15. A bellows 13 supplied with fluid through a restriction 13a has a pair of bleedoff nozzles with which co-operates an obturator 13c carried by the member 4 so that during normal operation the pressures in conduit 1 and bellows 13 are equal, which pressures are conveyed by pipes 13d to a relay 18. The latter is also connected to pipes 14a, transmitting pressures from the regulator 14 and measuring device 15, and a pipe 16a leading from the reducing valve 16. The locking diaphragm is supplied with fluid from any source by a conduit 5 from another reducing valve 19, which conduit 5 is connected to a valve 17 actuate by the relay 18. The pressure in pipe 16a is balanced in the relay by a spring whilst the pressures in pipes 13d and 14a balance each other, any failure or malfunctioning causes operation of the relay 18 and hence the valve 17 whereby fluid is exhausted from the conduit 5 and the locking diaphragm actuates the means to arrest the member 4; the latter may then be manually controlled if desired.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT259459A AT214283B (en) | 1959-04-06 | 1959-04-06 | Device for locking pneumatic or hydraulic actuators in a predetermined position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB942998A true GB942998A (en) | 1963-11-27 |
Family
ID=3537088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1029360A Expired GB942998A (en) | 1959-04-06 | 1960-03-23 | A fluid-pressure control system |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT214283B (en) |
| BE (1) | BE604958Q (en) |
| FR (1) | FR1247729A (en) |
| GB (1) | GB942998A (en) |
-
1959
- 1959-04-06 AT AT259459A patent/AT214283B/en active
-
1960
- 1960-02-08 FR FR818044A patent/FR1247729A/en not_active Expired
- 1960-03-23 GB GB1029360A patent/GB942998A/en not_active Expired
-
1961
- 1961-06-13 BE BE604958A patent/BE604958Q/en active
Also Published As
| Publication number | Publication date |
|---|---|
| FR1247729A (en) | 1960-12-02 |
| BE604958Q (en) | 1961-10-02 |
| AT214283B (en) | 1961-03-27 |
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