| 摘要 |
PURPOSE:To reduce noises and promote the cooling of an engine and an electricity generator, by dividing the air ducts of the engine and the generator from each other and providing fans in the ducts. CONSTITUTION:A duct 8 for cooling an engine 1 and a duct 9 for cooling an electricity generator 2 are defined in an inner case 4 covering the engine and the generator. The port 8a of the duct 8 and that 9a of the duct 9 communicate through baffle plates 11 with an intake port 12 provided in an outer case 5. The downstream ports 8b, 9b of the ducts 8, 9 communicate with the external air through the exhaust port 15 of the side of the outer case 5. Fans 16, 17 are installed in the ducts 8, 9 so that cooling air flows through the ducts as shown by arrows A, B. |
