Automatic Temperature Control System for Diver Heating System.
DEPARTMENT OF THE NAVY WASHINGTON DC
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The patent discloses a diver heating system of the type in which a fluid being circulated in the circulation passage of the divers clothing is heated by the controlled combustion of a reducing metal in an oxygen atmosphere, a temperature control system in which a gas flow control valve controls the oxygen flow to the reaction to automatically maintain a preset temperature of the circulating fluid and a gas shut-off valve serves as a backup to quickly shut-off the oxygen flow if the temperature of the circulating fluid exceeds a preset value. In both the gas flow control valve and the gas shut-off valve, the heated water is fed through a heat exchanger where it is in thermal contact with a thermofluid so that heat is transferred between the two fluids. The change in volume of the thermofluid with temperature is coupled to a motion bellows which operates to control the flow of oxygen through an orifice.
- Air Conditioning, Heating, Lighting and Ventilating
- Pumps, Filters, Pipes, Tubing, Fittings and Valves
- Protective Equipment