The incubator is heated by the lamps 1a, 1b and 1c, which are switched on and off by a thermostat (2). Refer to figure 1 and 2 for the numbers.
The air heated by the lamps (1a, 1b and 1c) rises along a tilted isolating baffle (3) and passes through the opening (4) to the upper compartment where the newborn lies on a by towels covered board (5). Part of the heated air escapes through the holes (6), the other part cools down and drops along the left wall (7). The air moves to the right wall and is mixed with fresh heated air at (4). Through opening (8) fresh air is sucked into the lower compartment. The air is humidified by a bowl of water (9) where strips of textile are suspended. The heated air passes by the textile (10) (see figure 1), absorbs humidity and cools down immediately. Then the humid air is sucked in the opening (4).
Because the isolating baffle (3) is also heated by the lamps (1a, 1b and 1c), the air above the plate is also heated and rises. This air goes through opening (4) with the heated air to the upper compartment.
Figure 1: Cross section of the incubator with the number indication of the elements (see text).
Figure 2: Cross section of the incubator with internal air circulation.
