GB1341031A - Fluid flow sensing systems - Google Patents
Fluid flow sensing systemsInfo
- Publication number
- GB1341031A GB1341031A GB1341031DA GB1341031A GB 1341031 A GB1341031 A GB 1341031A GB 1341031D A GB1341031D A GB 1341031DA GB 1341031 A GB1341031 A GB 1341031A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bellows
- conduit
- fluid
- fluid flow
- interior
- 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
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
- G01P13/0066—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using differences of pressure in the fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
Abstract
1341031 Fluid pressure servosystems ROTAX Ltd 19 April 1971 [10 March 1970] 11410/70 Heading G3P Also in Division G1 In a system for detecting when fluid flow within a duct exceeds a predetermined value the interior of a housing 10 is subjected to the static pressure in the duct via and conduit 11, and the interior of a bellows 14 to the dynamic pressure in the duct via a conduit 15, and the interior of a bellows 13 is evacuated, the bellows 13, 14 each being connected between the housing 10 and one arm of a lever 12 such that when the fluid-flow exceeds the predetermined value, the leverage applied by bellows 13 in a clockwise sense (as viewed in Fig. 1) is exceeded by the leverage applied by bellows 14 in an anti-clockwise sense, the lever 12 thus turning to open an orifice at an end of conduit 16. Fluid then flows through conduit 16 into a bellows 21 and displaces a bridge member 19, supported by two inter-connected opposed bellows 18 filled with an inert gas, thereby closing an electric switch 20 and operating a warning circuit. The position of the point 13a at which bellows 13 is attached in the housing 10 may be varied to adjust the leverage applied by the bellows 13 and thus the value of fluid flow at which a warning is given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1141070 | 1971-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1341031A true GB1341031A (en) | 1973-12-19 |
Family
ID=9985702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1341031D Expired GB1341031A (en) | 1971-04-19 | 1971-04-19 | Fluid flow sensing systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1341031A (en) |
-
1971
- 1971-04-19 GB GB1341031D patent/GB1341031A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PCNP | Patent ceased through non-payment of renewal fee |