| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a filter regenerating method (or device) which does not cause the wasteful consumption of energy and does not require wasteful work. <P>SOLUTION: The device is applied to a construction machine equipped with a variable speed fan which sends cool wind to release heat from a radiator for cooling the temperature of an engine and a heat releasing unit for cooling the temperature of the working oil, and the construction machine is further equipped with a post-treatment device to perform the post-treatment of the exhaust gas from the engine, a temperature sensor to measure the temperature of cooling water or working oil in a line circulating through the radiator or a heat releasing unit, and a controller to control the revolving speed of the variable speed fan where the post-treatment device is installed in the stream of the cool wind after cooling the radiator or the heat releasing unit, and in the case that the sensed temperature of the temperature sensor is lowered to the first set temperature or lower, the controller stops the revolving speed of the fan or lowers the speed, or lower the speed to a set minimum revolving speed. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
