Exhaust gas combustion device and power generator including the same

An exhaust gas combustion device for a power generator comprising a diesel engine whose fuel injection quantity is controlled mechanically and a power generating unit which is driven by the diesel engine, the exhaust gas combustion device comprising:

• a collector which collects particulate matter contained in exhaust gas discharged from the diesel engine;
• a heater which heats the exhaust gas before the exhaust gas is introduced into the collector;
• a sensor which measures a pressure of the exhaust gas to be introduced into the collector;
• and
• a controller which controls the heater on the basis of an output from the sensor,
• wherein the power generating unit is configured to supply power only to a load connected to the power generator or to both the load and the heater connected to the power generating depending on the output from the sensor, and
• when a value measured by the sensor is equal to or larger than a predetermined value, the controller increases the power outputted from the power generating unit so that a part of the power is supplied to the heater and another part of the power is supplied to the load so that a temperature of the exhaust gas discharged from the diesel engine rises and that the discharged exhaust gas is further heated by the heater.