АКB-17UM (АКБ-17УМ) emergency oxygen unit with chemical oxygen generator for civil aviation passengers

The АКB-17UM (АКБ-17УМ) emergency oxygen unit is designed to supply oxygen to aircraft passengers in case of emergency depressurization.
The chemical oxygen generator, electrical lock and oxygen masks are mounted inside the unit container. At the aircraft cabin depressurization, the unit cover opens automatically. At that, the masks fall out of the container and the cover presses to the ceiling panel. When putting a mask on, a passenger pulls the chemical oxygen generator pin out to activate the generator.
There is a special device for checking the electrical lock for proper operation, which provides for partial opening of the cover with no mask falling out.

Specification

1. The AKB-17UM oxygen units have the following modifications: Designation Dimensions (mm) Mass, not more than (kg) Number of masks Generator operation time, at least (min) Maximum oxygen reserve (l) АКВ-17УМ-4 260x189x84 1.55 4 15 100 АКВ-17УМ-3 1.5 3 15 80 АКВ-17УМ-2 1.45 2 15 80

2. The unit cover opens at power supply voltage of 24-29.4 VDC and emergency supply voltage of 18 V. 3. Service life is 15 years with prolongation to 20 years. 4. Routine maintenance shall be done every 3 years. 5. Minimum generator's oxygen flow rate per a passenger (time - min, flow rate - l/min)

Oxygen systems ДКМ-1 The smoke oxygen mask is a full-face gas mask with panoramic glazing. It is equipped with the oxygen unit and microphone. БКП-2-210 and БКП-3-210 Hand-held oxygen units with portable oxygen sources are designed to help passengers, who ail due to hypobaric environment in the cabin at the cruising altitude, as well as to supply oxygen to stewards in case of emergency cabin depressurization. МКП-1Т oxygen masks and БЦ-2-210 and БЦ-3-210 light-weight composite oxygen bottles. Oxygen bottles are light weight, stable to corrosion and stand a great number of positive pressure loading cycles.

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