REBREATHER SYSTEM Russian patent published in 2020 - IPC A62B7/02 B63C11/24 A62B9/02 

FIELD: diving equipment.

SUBSTANCE: invention relates to semi-closed cycle rebreather system. Rebreather system comprises a mouthpiece, a first respiratory bag for exhaled breathable gas mixture, a second respiratory bag for respired gas mixture, a filter for removing carbon dioxide from the exhaled breathable gas mixture, a reservoir for a predetermined amount of the gas mixture replenishing the oxygen level in the respired gas mixture, tube supplying refilling gas mixture from high pressure reservoir to second breathing bag, in which pressure controlled supply unit is installed, one or more sensors, electronic control unit, which receives measurement signals from said sensors and which, depending on said signals, generates signals which control said servo-controlled supply unit. Supply unit comprises normally-open servo-controlled valve, namely valve, which in the absence of a control signal of actuation automatically and reliably turns into a state providing supply of the replenishing gas mixture. Electronic control unit relates to processor type and executes control program.

EFFECT: improved rebreather by creating a system of so-called rebreather type, in which, in case of control electronics failure and/or absence of electric energy, the system automatically switches to safety mode.

10 cl, 2 dwg