Fluid handling – Larner-johnson type valves; i.e. – telescoping internal valve... – Line condition change responsive
Patent
1974-08-30
1976-03-23
Cohan, Alan
Fluid handling
Larner-johnson type valves; i.e., telescoping internal valve...
Line condition change responsive
137222, 137486, 137490, G05D 1610
Patent
active
039453936
ABSTRACT:
Flow rate limiting valve for pipes for liquid or gaseous fluids of the type comprising a cup plug which extends telescopically from an ogival chamber contained in the valve body, and communicates with the fluid upstream of the valve seat by a channel in the fixed part and with the fluid downstream of the valve seat by a channel in the head of the cup plug, being possible to close or throttle said second channel by a needle which extends to the outside of the ogival chamber and terminates with an orthogonal disc receiving the hydrodynamic thrust of at least a part of the lines of flow of the entering fluid, comprises external control device to regulate the thrust, the lever arm and the tilt of the spring to lever which transmits the thrust of the calibrating spring to the needle, thus being possible to determine, by acting on these external means; the flow rate, the opening and the closure of the valve, along with his characteristic-curve and the flow rate value.
REFERENCES:
patent: 2608985 (1952-09-01), Arthur
patent: 2655935 (1953-10-01), Kinzbach
Cohan Alan
Michalsky Gerald A.
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