Automatic underwater breathing membrane with integrated manual recharge

摘要

The present invention relates to an individual subaquatic diving apparatus with self-contained recharging. This apparatus is constituted of a bottle pressurized with air by means of a manual pump integrated into the bottle or of a filler valve. This apparatus comprises a retention assembly that adapts to the back of the diver. The air under pressure in the bottle is transmitted to the diver via a hose and a single-stage pressure reducing valve that adjusts the suction pressure to the ambient pressure of the water. The pump integrated into the bottle is a high performance pump that makes it possible to reach a recharging capacity of several tens of bars without undue efforts. This manual pump with two chambers considerably improves the ratio between pressure, air flow, and the force exerted on the handle of the pump with respect to a conventional single-body pump.