GB231568A - Improvements in and relating to hydraulic relay apparatus - Google Patents
Improvements in and relating to hydraulic relay apparatusInfo
- Publication number
- GB231568A GB231568A GB32306/23A GB3230623A GB231568A GB 231568 A GB231568 A GB 231568A GB 32306/23 A GB32306/23 A GB 32306/23A GB 3230623 A GB3230623 A GB 3230623A GB 231568 A GB231568 A GB 231568A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipe
- liquid
- valves
- variations
- controlling
- 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
- 239000007788 liquid Substances 0.000 abstract 4
- 239000012530 fluid Substances 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/14—Control of fluid pressure with auxiliary non-electric power
- G05D16/18—Control of fluid pressure with auxiliary non-electric power derived from an external source
- G05D16/187—Control of fluid pressure with auxiliary non-electric power derived from an external source using pistons within the main valve
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
231,568. Dale, W. B., Hopkinson, R. A., and Hopkinson & Co., Ltd., J. Dec. 27,1923. Valves controlled by pilot or relay valves. - An hydraulic relay apparatus for controlling fluid flow, e.g. steam flow to turbines comprises a column of liquid in a pipe a the head of which is varied by variations in the pressure of the fluid in a conduit j. These variations act through a spring-controlled diaphragm h to operate valves f, e controlling the entrance and exit of liquid to and from the pipe a, and the consequent variations of head in the pipe a act through a diaphragm d to operate a valve q controlling the inlet and exhaust of a hydraulic cylinder o, the piston of which is connected to the counterweighted lever of a reducing valve k. The pipe a is supplied from a constant level tank b which receives the exhaust liquid from the cylinder o, and also liquid from a supply pipe p through a float operated valve. In a modification, one of the valves e, f, is replaced by a constriction in the pipe a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB32306/23A GB231568A (en) | 1923-12-27 | 1923-12-27 | Improvements in and relating to hydraulic relay apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB32306/23A GB231568A (en) | 1923-12-27 | 1923-12-27 | Improvements in and relating to hydraulic relay apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB231568A true GB231568A (en) | 1925-03-27 |
Family
ID=10336544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32306/23A Expired GB231568A (en) | 1923-12-27 | 1923-12-27 | Improvements in and relating to hydraulic relay apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB231568A (en) |
-
1923
- 1923-12-27 GB GB32306/23A patent/GB231568A/en not_active Expired
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