REGULATOR OF SUPPLY OF RESPIRATORY GAS MIXTURE OF DIVING BREATHING APPARATUS WITH SEMI-CLOSED BREATHING CIRCUIT Russian patent published in 2024 - IPC B63C11/14 

FIELD: diving equipment.

SUBSTANCE: invention relates to diving equipment, namely to diving equipment - means of regulating gas supply to diving breathing apparatus. Regulator for supply of respiratory gas mixture of a diving breathing apparatus with a semi-closed breathing circuit, consisting of a sealed housing with a unit of calibrated nozzles of different cross-section arranged inside and a movable switching mechanism with sealing elements, having three fixed positions, to which a gas line for supplying a breathing gas mixture is supplied. Switching mechanism is made with possibility of providing, depending on position, supply of gas mixture into one of nozzles.

EFFECT: reduced consumption of respiratory gas mixture in diving breathing apparatus of semi-closed breathing circuit and higher safety of their use.

1 cl, 2 dwg