Patent ID: 8944870
Filing Date: 2015-02-03
Classification: B63H,F01N

Abstract:
1. An outboard motor comprising: an engine including a plurality of vertically aligned cylinders; a propeller shaft driven by a drive force from the engine; a plurality of exhaust ports connected to the plurality of cylinders; an exhaust passage connected to the plurality of exhaust ports, the exhaust passage being configured to discharge exhaust to an exterior of the engine, the exhaust passage including a first exhaust passage and a second exhaust passage positioned on a downstream side of the first exhaust passage; a first honeycomb structure disposed inside the first exhaust passage; and a second honeycomb structure disposed inside the second exhaust passage; wherein the first exhaust passage and the second exhaust passage are separate and independent members that are connected to each other; a first opening into which the first honeycomb structure can be inserted is provided at an end portion of the first exhaust passage; and a second opening into which the second honeycomb structure can be inserted is provided at an end portion of the second exhaust passage.