发明名称 MARINE ENGINE
摘要 PROBLEM TO BE SOLVED: To reduce the lowering of an output through the reduction of a cooling water amount of an exhaust system, to prevent the occurrence of the burn of a rubber part through the suppression of the increase of the temperature of an exhaust system during high speed operation, and to improve the durability of an exhaust pipe. SOLUTION: A marine engine comprises an engine 5 to drive a propeller; and a cooling system A to feed cooling water to the engine 5 through a cooling water feed pipe 51 and further to an exhaust system to mix the cooling water in exhaust gas. In this case, an exhaust cooling water pipe 55 to feed cooling water directly to an exhaust system without a feed through the engine 5 is connected to the cooling water feed pipe 51, and a cooling water supply means B is provided to open and close the exhaust gas cooling water pipe 55 based on the temperature of an exhaust system.
申请公布号 JPH09303145(A) 申请公布日期 1997.11.25
申请号 JP19960119271 申请日期 1996.05.14
申请人 YAMAHA MOTOR CO LTD 发明人 ITO KAZUMASA
分类号 B63H20/24;F01N3/02;F01P3/20;F01P11/04 主分类号 B63H20/24
代理机构 代理人
主权项
地址