Accession Number:

ADD009320

Title:

Automatic Temperature Control System for Diver Heating System.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Report Date:

1981-10-20

Pagination or Media Count:

9.0

Abstract:

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.

Subject Categories:

  • Air Conditioning, Heating, Lighting and Ventilating
  • Pumps, Filters, Pipes, Tubing, Fittings and Valves
  • Protective Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE