초록 ▼

A cryogenic, submersible, synthetic air-breathing system which provides the diver with a proper breathing atmosphere, including provisions for a water-jet propulsion unit to propel the diver to an extended underwater range. The system utilizes liquid oxygen and liquid nitrogen, each stored in respec

A cryogenic, submersible, synthetic air-breathing system which provides the diver with a proper breathing atmosphere, including provisions for a water-jet propulsion unit to propel the diver to an extended underwater range. The system utilizes liquid oxygen and liquid nitrogen, each stored in respective tanks, whereby the gases pass through a series of heat exchangers, regulators, check valves and a slider valve into which the regulated gases enter a mixing chamber wherein breathable air is generated therein, and then delivered to the diver\s face mask－an unmixed portion of the gas being used as the means to power a conventional air motor which, in turn, powers an underwater jet engine.

대표청구항 ▼

A cryogenic, underwater-breathing apparatus comprising: a first tank having liquid nitrogen stored therein; a second tank having liquid oxygen stored therein; a pair of heat exchangers defining a gas-expansion chamber, each heat exchanger being connected to respective first and second tanks of liqui

A cryogenic, underwater-breathing apparatus comprising: a first tank having liquid nitrogen stored therein; a second tank having liquid oxygen stored therein; a pair of heat exchangers defining a gas-expansion chamber, each heat exchanger being connected to respective first and second tanks of liquid nitrogen and oxygen, whereby said gases therefrom pass through said respective heat exchangers; a gas-mixing chamber connected to both of said heat exchangers wherein said nitrogen and oxygen are mixed together as breathable air under a predetermined pressure; a shuttle-valve means operably interposed between said heat exchangers and said mixing chamber, whereby gases under equal pressure from said tanks are allowed to flow through said shuttle valve means under a balanced condition, and whereby gases under unequal pressure from said tanks cause said shuttle-valve to become unbalanced, preventing gases from flowing therethrough and entering said mixing chamber; a pair of low-pressure regulator means, each being operably interposed between respective heat exchangers and said shuttle valve means, whereby the gas pressure from each tank is equalized prior to entering said shuttle valve; and a mouthpiece regulator operably interconnected to said mixing chamber so as to receive the mixed gases from said mixing chamber for breathing by the diver while submerged underwater.