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Heat exchanger
Heat exchanger
The heat exchanger is heated by a high pressure fan heater. A ventilator (1) draws in
The heat exchanger is heated by a high pressure fan heater. A ventilator (1) draws in
the cold, fresh air from the bottom end of the machine and forces it upwards
the cold, fresh air from the bottom end of the machine and forces it upwards
between the outer mantle (2) and the inner mantle (3). In the process, the fresh air
between the outer mantle (2) and the inner mantle (3). In the process, the fresh air
is pre-heated and the inner and outer mantles are cooled. The pre-heated air is
is pre-heated and the inner and outer mantles are cooled. The pre-heated air is
pressed through a mixing unit (4). Here a finely atomised fuel is injected via a
pressed through a mixing unit (4). Here a finely atomised fuel is injected via a
nozzle (5) and mixed with the air. The electrodes (6) located below then ignite the
nozzle (5) and mixed with the air. The electrodes (6) located below then ignite the
fuel-air mixture.
fuel-air mixture.
The flame burns from top to bottom, turns round and the hot gas flows past the
The flame burns from top to bottom, turns round and the hot gas flows past the
heating element (7) on its way back up. The burned gases collect in the exhaust
heating element (7) on its way back up. The burned gases collect in the exhaust
chamber and are emitted from the chimney(8).
chamber and are emitted from the chimney(8).
The water is forced through a heating element by the high pressure pump. Hot air
The water is forced through a heating element by the high pressure pump. Hot air
flows around this, as described above.
flows around this, as described above.
The fuel pump (9) draws the oil through a filter (10) and pumps it to the injector
The fuel pump (9) draws the oil through a filter (10) and pumps it to the injector
nozzle. The surplus quantity of fuel flows straight back into the tank. The oil
nozzle. The surplus quantity of fuel flows straight back into the tank. The oil
pressure is shown on the fuel manometer (11).
pressure is shown on the fuel manometer (11).
4
4
5
5
3
3
2
2
6
Description
8
8
6
6
7
7
10
10
11
11
9
9
1
1
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