Fluid handling – Pressure modulating relays or followers – Jet control type
Patent
1974-11-21
1977-01-18
Cohan, Alan
Fluid handling
Pressure modulating relays or followers
Jet control type
1374875, A62B 702, F16K 3112
Patent
active
040033961
ABSTRACT:
Partial pressure of oxygen in a closed gas-containing system is controlled automatically. Unique electro-mechanical transducers employ electric meter movements to vary the angle of a surface in a jet of gas in response to a signal from an oxygen sensor, thereby to vary the direction of the jet and the stagnation pressure in a receiver. The kinetic energy of the jet is maintained constant irrespective of ambient pressure by a constant differential pressure regulator. A pneumatically operated servo valve responsive to the stagnation pressure in the receiver controls the admission of oxygen to the system.
REFERENCES:
patent: 2903007 (1957-09-01), Zieboltz
patent: 3628552 (1971-12-01), Stern
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