Fluid handling – Diverse fluid containing pressure systems – Gas pressure storage over or displacement of liquid
Patent
1975-05-05
1976-09-21
Cohan, Alan
Fluid handling
Diverse fluid containing pressure systems
Gas pressure storage over or displacement of liquid
417 2, F04D 100
Patent
active
039813193
ABSTRACT:
In an air pressurized hydraulic system, air is replenished in a storage tank for the liquid by an air control responsive to pressure differences in the system to supply air to the storage vessel if needed. During replenishment of liquid in the storage vessel, air may be added repetitively by periodically switching a valve to reverse the pressure across an air control chamber device for admission of air from atmosphere and discharge into the pressure vessel.
REFERENCES:
patent: 3053435 (1962-09-01), Sanders
patent: 3805820 (1974-04-01), Brady
Brady Air Controls, Inc.
Cohan Alan
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