| 摘要 |
FIELD: transportation, diving equipment. ^ SUBSTANCE: semi-closed-type breathing apparatus contains a diver's bag with a bleeding valve, a box with carbon dioxide absorber, a gas cylinders with reducers, metering nozzle for continuous feed of oxygen into the breathing bag, a lung-governed breathing apparatus, a valve box with a breath-in valve and breath-in/out pipes. A metering valve is arranged between the cylinder reducer and the breathing bag to ensure a controlled feed of nitrogen depending upon the water pressure. The breath-in valve is arranged at the inlet of the cartridge with absorber of chemicals, while before the breath-out valve an automatic oxygen corrector is arranged connected, via the reducer, with the oxygen cylinder to feed oxygen into breathing circuit in compliance with the diver pulmonary ventilation volume. ^ EFFECT: smaller weight and sixes, greater depth of diving, shorter decompression time. ^ 2 dwg |
