摘要 |
PROBLEM TO BE SOLVED: To reduce noises and prevent deterioration of efficiency of heat recovery. SOLUTION: An engine working machine is composed of an engine 2, a generator 3 driven by the engine 2, and an exhaust heat recovery device which recovers exhaust heat of the engine 2 by circulating heat medium. Each component is stored in a soundproof case 13. An inner space of the soundproof case 13 is vertically divided into two chambers by means of a partition wall 100. The engine 2, the generator 3, and the exhaust heat recovery device such as an exhaust heat exchanger 9 are housed in the lower chamber, while an air cleaner 7 and an electric control device 26 are housed in the upper chamber. Particularly, the air cleaner 7 is housed in a small chamber closed by a wall 200 to which a noise absorbing member is applied. Combusting air is introduced to the closed chamber, and supplied to the engine 2 through the air cleaner 7.
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