| 摘要 |
PURPOSE:To have a good ventilation of an engine room and prevent intrusion of water into the room by forming a projection each solidly at the front and rear walls of the casing for engine room and by providing a vent to take in only the air at the undersurfaces of said projections. CONSTITUTION:The circumferential wall and upper wall 33 of a casing 3 for engine room are formed as in a single body, and a projection each, having an upper and a lower wall and side walls, is provided at the front and rear walls 31, 34 of the circumferential wall. A through hole 5 is provided in the lower wall 40 of the projection 4 in such a way as leaving a level surface around it. Accordingly the wind produced by the sailing ship itself is allowed to blow in from this hole 5 in the front wall 31 while the back part of the rear wall 34 is depressurized to cause exhaust of the air through the hole 5, and consequently the enging room is ventilated naturally. Because a level surface is formed around the hole 5, the water cast on the deck 2 is hindered from intruding. |
