GB1438497A - Fluidic devices - Google Patents
Fluidic devicesInfo
- Publication number
- GB1438497A GB1438497A GB5556072A GB5556072A GB1438497A GB 1438497 A GB1438497 A GB 1438497A GB 5556072 A GB5556072 A GB 5556072A GB 5556072 A GB5556072 A GB 5556072A GB 1438497 A GB1438497 A GB 1438497A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- duct
- vortex
- vortex chamber
- passes
- 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
- F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
- F15C1/00—Circuit elements having no moving parts
- F15C1/16—Vortex devices, i.e. devices in which use is made of the pressure drop associated with vortex motion in a fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Abstract
1438497 Fluid regulation ROLLS-ROYCE (1971) Ltd 30 Nov 1973 [1 Dec 1972] 55560/72 Heading G3H [Also in Division G4] In a fluidic amplifier or switch, e.g. a bi-stable unit 10, comprising a splitter 18, Fig. 1, control passages 14, 16, two output ducts 20, 22 and vents 24, 26, a vortex chamber 28, 30 is located in at least one of the ducts 20, 22 for reducing the output pressure therein when the main flow is deflected into the other duct. When the main flow is deflected into, e.g., duct 20 some of the flow passes to outlet 32 at pressure OP 1 and the remainder passes through a conduit 36 tangentially into vortex chamber 30 to establish a vortex therein. Some of the vortex flow passes along duct 22 to vent 26 at pressure Pr and the remainder passes to outlet 34 at a pressure OP 2 somewhat lower than the vent pressure Pr, thereby establishing a relatively high-pressure difference (OP 1 -OP 2 ). The conduit 36 can be arranged to choke at sonic velocity when conveying compressible gas. In an alternative embodiment, Fig. 2 (not shown), only the duct (22) is provided with a vortex chamber, the latter being connected to the duct (22) via a short convergent nozzle (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5556072A GB1438497A (en) | 1972-12-01 | 1972-12-01 | Fluidic devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5556072A GB1438497A (en) | 1972-12-01 | 1972-12-01 | Fluidic devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1438497A true GB1438497A (en) | 1976-06-09 |
Family
ID=10474272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5556072A Expired GB1438497A (en) | 1972-12-01 | 1972-12-01 | Fluidic devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1438497A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4323991A (en) * | 1979-09-12 | 1982-04-06 | The United States Of America As Represented By The Secretary Of The Army | Fluidic mud pulser |
| GB2218826A (en) * | 1988-05-19 | 1989-11-22 | Atomic Energy Authority Uk | Fluidic devices |
| GB2279764A (en) * | 1993-07-06 | 1995-01-11 | Univ Loughborough | Flow metering |
| GB2355566A (en) * | 1999-10-20 | 2001-04-25 | Univ Sheffield | Fluidic valve |
-
1972
- 1972-12-01 GB GB5556072A patent/GB1438497A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4323991A (en) * | 1979-09-12 | 1982-04-06 | The United States Of America As Represented By The Secretary Of The Army | Fluidic mud pulser |
| GB2218826A (en) * | 1988-05-19 | 1989-11-22 | Atomic Energy Authority Uk | Fluidic devices |
| GB2279764A (en) * | 1993-07-06 | 1995-01-11 | Univ Loughborough | Flow metering |
| GB2355566A (en) * | 1999-10-20 | 2001-04-25 | Univ Sheffield | Fluidic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |