| 摘要 |
PROBLEM TO BE SOLVED: To easily avoid heat influence to parts to be free from heat influence in an engine working machine for housing an engine and a working machine driven by the engine in a box-shaped case. SOLUTION: In a working machine housing chamber 27 and an electrical equipment housing chamber 28 for housing an engine E and a working machine 12, a partition wall 29 blocking the inside of a case 11, extending upwards and downwards, and having a vent hole 59 communicating the working machine housing chamber 27 with the electrical equipment housing chamber 28 at the bottom, an air suction port 62 for cooling air connecting the electrical equipment housing chamber 28 with the outside, and an exhaust port 38 exhausting the air in the working machine housing chamber 27 forcedly introduced by a fan 35 driven by an engine E to the outside are installed to the case 11. A labyrinth- shaped air suction passage 63 once introducing the air from a cooling air suction port 62 to the top part in the electrical equipment housing chamber 28 and then introducing it to the vent hole 59 is formed in the electrical equipment housing chamber 28. COPYRIGHT: (C)2003,JPO |
