Accession Number : ADD009320

Title :   Automatic Temperature Control System for Diver Heating System.

Descriptive Note : Patent,


Personal Author(s) : Sergev,Sergius S ; Roster,Theodore J

Report Date : 20 Oct 1981

Pagination or Media Count : 9

Abstract : The patent discloses a diver heating system of the type in which a fluid being circulated in the circulation passage of the diver's 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.

Descriptors :   *Patents, *Diver equipment, *Temperature control, *Safety valves, Cut off valves, Automatic, Gas flow, Oxygen, Setting(Adjusting), Manual operation, Diving suits, Heat exchangers, Hot water

Subject Categories : Air Condition, Heating, Lighting & Ventilating
      Pumps, Filters, Pipes, Tubing, Fittings & Vlvs
      Protective Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE