PROBLEM TO BE SOLVED: To make it possible to simply a structure and to achieve down-sizing of a device.SOLUTION: An outboard engine having a v type four cycle engine 11 in which on outer sides of a left bank 27 and a right bank 28 in an outboard machine width direction, a left exhaust manifold 41 and a right exhaust manifold 42, which are communicated with respective exhaust ports 36 of plural cylinders 40 provided on the left bank 27 and the right bank 28 and extend in parallel to a crank shaft 26, are respectively provided. In respective of exhaust passages 41T, 42T of the left exhaust manifold 41 and the right exhaust manifold 42, an exhaust pipe 46, which is provided upright in parallel to the crank shaft 26 and is connected to an exhaust passage of an engine holder, is provided. Each of the left exhaust manifold 41 and the right exhaust manifold 42 has clearances 48 between themselves and the exhaust pipe 46 in a plan view, and an exhaust gas collective space, in which exhaust gas from each exhaust port 36 is collected, is formed by this clearance 48.

    【課題】構造を簡素化できると共に装置を小型化できること。【解決手段】V型4サイクルエンジン11を有する船外機であって、左バンク27、右バンク28の船外機幅方向の外方には、左バンク27、右バンク28に設けられた複数の気筒40の各排気ポート36に連通してクランク軸26と平行に延びる左排気マニホールド41、右排気マニホールド42がそれぞれ設けられ、左排気マニホールド41及び右排気マニホールド42のそれぞれの排気通路41T、42T内に、クランク軸26と平行に立設されてエンジンホルダの排気通路に接続された排気パイプ46が配設され、左排気マニホールド41及び右排気マニホールド42のそれぞれは、平面視において排気パイプ46との間に隙間48を有し、この隙間48により各排気ポート36からの排気を集合する排気集合空間が形成されたものである。【選択図】 図4


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    Title :

    AIR EXHAUSTER OF OUTBOARD ENGINE


    Additional title:

    船外機の排気装置


    Contributors:

    Publication date :

    2015-11-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein



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