GB1471872A - Gas supply apparatus - Google Patents
Gas supply apparatusInfo
- Publication number
- GB1471872A GB1471872A GB3627473A GB3627473A GB1471872A GB 1471872 A GB1471872 A GB 1471872A GB 3627473 A GB3627473 A GB 3627473A GB 3627473 A GB3627473 A GB 3627473A GB 1471872 A GB1471872 A GB 1471872A
- Authority
- GB
- United Kingdom
- Prior art keywords
- main
- valve
- pressure
- upstream part
- pilot valve
- 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
-
- 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
- G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
- G05D16/163—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using membranes 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)
- Laminated Bodies (AREA)
Abstract
1471872 Fluid-pressure servomotor systems HANSON BDC (CHESTERFIELD) Ltd 4 July 1974 [30 July 1973] 36274/73 Addition to 1408394 Heading G3P The system for supplying gas to consumers through a main 40, described in the parent specification, in which a main pressure control valve 10 at an upstream part of the main is controlled by a pilot valve 12 in accordance with the pressures at spaced-apart points at the upstream part of the main, is modified in that the pressures at the spaced-apart points, one of which is downstream of the main valve 10, and the other of which is at the outlet of that valve, are applied through the two parts of conduit 32 to the opposite sides of the secondary controlling diaphragm 24 of the pilot valve, the primary controlling diaphragm 22 having the pressure at the upstream part of the main applied to it through conduits 25 and 68, and being exposed to the atmosphere on its other side. The arrangement is such that the direct pressure control of the pilot valve 12, and hence of the main valve 10, is modified in accordance with the flow in the main, i.e. with the collective demand of the consumers, so that when demand increases, the pressure will be increased to counter the pressure loss due to flow along the main.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3627473A GB1471872A (en) | 1974-07-04 | 1974-07-04 | Gas supply apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3627473A GB1471872A (en) | 1974-07-04 | 1974-07-04 | Gas supply apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1471872A true GB1471872A (en) | 1977-04-27 |
Family
ID=10386615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3627473A Expired GB1471872A (en) | 1974-07-04 | 1974-07-04 | Gas supply apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1471872A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2176316A (en) * | 1985-05-02 | 1986-12-17 | Nat Res Dev | Fluid flow control apparatus |
| GB2223109A (en) * | 1988-08-18 | 1990-03-28 | Regel Messtechnik Gmbh | Gas pressure regulating means |
-
1974
- 1974-07-04 GB GB3627473A patent/GB1471872A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2176316A (en) * | 1985-05-02 | 1986-12-17 | Nat Res Dev | Fluid flow control apparatus |
| GB2223109A (en) * | 1988-08-18 | 1990-03-28 | Regel Messtechnik Gmbh | Gas pressure regulating means |
| GB2223109B (en) * | 1988-08-18 | 1993-03-24 | Regel Messtechnik Gmbh | Gas pressure regulating means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |