BREATHE-HELPING DEVICE Russian patent published in 2022 - IPC A62B7/00 A62B9/00 

FIELD: breathing devices.

SUBSTANCE: invention relates to self-contained breathing apparatus powered by compressed air, designed to protect the respiratory organs and human vision when operating in an atmosphere unsuitable for breathing. The breathing apparatus includes a compressed breathing gas storage system, a reducer, a lung machine, a face mask, an indicator device and a signaling device placed on the suspension system. The compressed breathing gas storage system comprises at least two compressed breathing gas storage modules connected in parallel between the inlet line and the outlet line, a detachable connection with a check valve for connecting the compressed breathing gas storage system when refueling to a source of high pressure compressed gas, a manifold, connected through a locking device to the output line. The compressed breathing gas storage module is a single pressure vessel or a group of high-pressure vessels connected in series or in parallel by flexible or rigid connections, and check valves are installed at the inlet and outlet of each compressed breathing gas storage module to ensure the flow of compressed breathing gas through the compressed breathing gas storage module. only in one direction - from the entrance to the exit. The check valve installed at the inlet of the compressed breathing gas storage module ensures the flow of compressed breathing gas from the inlet line to the compressed breathing gas storage module and prevents the reverse flow from the compressed breathing gas storage module into the inlet line, and the check valve installed respectively at the outlet of the storage module compressed breathing gas - ensures the flow of breathing gas from the compressed breathing gas storage module to the outlet line and prevents back flow from the outlet line to the compressed breathing gas storage module.

EFFECT: increasing the reliability of the breathing apparatus, in particular the compressed breathing gas storage system of the breathing apparatus, ensuring the flow of compressed breathing gas through the compressed breathing gas storage module in only one direction and isolating the damaged module in case of its depressurization or destruction.

5 cl, 5 dwg