PROBLEM TO BE SOLVED: To certainly prevent breakage due to the thermal expansion of a catalyst converter.SOLUTION: A left exhaust passage 41 and a right exhaust passage connected to an exhaust port 36 of a cylinder head 31 to lead exhaust to the outside of an engine 11, are equipped with a catalyst storage chamber 44 for storing a catalyst converter 53 for exhaust emission control, and integrally formed with a cylinder block 30. The catalyst converter 53 is inserted in the catalyst storage chamber 44 from a lower side to be attached. At least one end portion, for example, a lower holding body 62 is fitted with the exhaust storage chamber 44 so as to permit the expansion/contraction in an axial direction of the catalyst converter 53.SELECTED DRAWING: Figure 3
【課題】触媒コンバータの熱膨張による破損を確実に防止できること。【解決手段】シリンダヘッド31の排気ポート36に接続されて排気をエンジン11の外部へ導く左排気通路41、右排気通路が、排気浄化用の触媒コンバータ53を収納する触媒収納室44を備えると共に、シリンダブロック30に一体に形成され、触媒コンバータ53は、触媒収納室44に下方から挿入されて取り付けられ、少なくとも一方の端部、例えば下保持体62が、触媒コンバータ53の軸方向の伸縮を許容可能に排気収納室44に嵌合して構成されたものである。【選択図】 図3
CATALYST ATTACHING STRUCTURE OF OUTBOARD MOTOR
船外機の触媒取付構造
2016-08-08
Patent
Electronic Resource
Japanese
SUSPENSION STRUCTURE OF OUTBOARD MOTOR AND OUTBOARD MOTOR
European Patent Office | 2023
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