초록 ▼

A passive survival suit for enabling a diver in a confined bell to maintain body temperature for at least a minimum interval in the event of failure of external thermal sources uses a combination of thermal insulation and a coacting breathing gas regenerator and scrubber system. The thermal insulati

A passive survival suit for enabling a diver in a confined bell to maintain body temperature for at least a minimum interval in the event of failure of external thermal sources uses a combination of thermal insulation and a coacting breathing gas regenerator and scrubber system. The thermal insulation comprises a combination of a hooded sleeveless vest and a body shell, each of which provide a long heat conduction path length and minimum internal heat convection currents. The regenerator and scrubber system are arranged such that thermal energy in expired breathing gases is stored with high efficiency and used to heat breathing gas during intake, while the carbon dioxide scrubbing reaction is carried out in an optimal warm, moist atmosphere and contributes heat to aid in maintaining the diver\s temperature.

대표청구항 ▼

A passive system for reducing the thermal energy losses of a person in a confined cold hyperbaric environment, comprising: insulative means for encompassing the person at all but the face region, the insulative means having at least four inches of conductive path length and comprising interior fibro

A passive system for reducing the thermal energy losses of a person in a confined cold hyperbaric environment, comprising: insulative means for encompassing the person at all but the face region, the insulative means having at least four inches of conductive path length and comprising interior fibrous insulation providing minimal interior convection currents; carbon dioxide scrubber means disposed within the insulative means and coupled to receive expiratory flows from the person, such that the heat and moisture in the expiratory flows together with the encompassing insulative means establish an efficient exothermic reaction contributing heat to the person; and regenerator means coupled to receive expiratory flow from the scrubber means and communicating with the environment to provide inspiratory flows from said scrubber means therethrough to the person, the regenerator means being configured to couple expiratory flows to the environment while storing heat and moisture contained therein, and to give up the heat and moisture to inspiratory flows.