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    • 9. 发明授权
    • Exhaust system for outboard motor
    • 舷外马达排气系统
    • US5562510A
    • 1996-10-08
    • US507008
    • 1995-07-25
    • Takehisa SuzukiNaoto Matsumoto
    • Takehisa SuzukiNaoto Matsumoto
    • B08B3/02B63H20/24F01N3/24F01N3/28F01N13/12F01P11/06F02B61/04B63H21/32
    • F01N13/12B63H20/245F01N3/28F01N2590/021F02B61/045
    • A catalytic exhaust system for an outboard motor wherein the catalyst is positioned in the drive shaft housing to remove this source of heat from the power head. However, the catalyst is contained within a sealed compartment in the drive shaft housing lower unit. In order to protect the catalyst from water, a trap section is positioned in the power head and this is water cooled by a source of water which has not passed through the engine for its cooling prior to delivery to the trap section. In addition, the guide plate that separates the power head from the drive shaft housing and through which the exhaust gases pass is also water cooled. An arrangement is incorporated for permitting replacement and servicing of the catalytic converter. Although both above the water and below the water exhaust gas discharges are employed, all gases flowing to the atmosphere must pass through the catalytic converter. An arrangement is also provided for passing flushing water through the catalyst while still in the outboard motor. The flushing operation is such that the water flows in the opposite direction from the exhaust gases to assist in removing foreign particles.
    • 一种用于舷外马达的催化排气系统,其中催化剂位于驱动轴壳体中以从动力头移除该热源。 然而,催化剂被包含在驱动轴壳体下部单元中的密封隔室内。 为了保护催化剂免受水的影响,捕集器部分位于动力头中,并且由水源水进行水冷却,水源在输送到捕集器之前未通过发动机进行冷却。 此外,分离动力头与驱动轴壳体并且废气通过的导向板也是水冷的。 引入了一种用于允许更换和维修催化转化器的装置。 尽管使用了水和排放废气以下的水,但是所有流入大气的气体都必须通过催化转化器。 还提供了一种布置,用于将冲洗水通过催化剂,同时仍然在舷外马达中。 冲洗操作使得水从排气沿相反方向流动以帮助去除异物。