Outboard motor
AssigneeSanshin Kogyo Kabushiki Kaisha
InventorsKatsumi Torigai, Masanori Takahashi, Yoshihide Hirano
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Abstract
Several embodiments of induction systems for two cycle, crankcase compression, internal combustion engines employed for powering outboard motors. The outboard motor is supported for tilt and trim movement and the induction system is designed so as to extend from the intake ports of the engine in a generally rearward direction so as to be substantially unaffected by changes in trim angle and acceleration. The invention is described in conjunction with both V-type and inline type of engines.
Claims24
An outboard motor adapted to be affixed for tilt and trim movement about a horizontal axis at a forward point of said outboard motor relative to the hull of an associated watercraft, said outboard motor including a power head disposed generally above said horizontal axis and containing a two cycle, crankcase compression, internal combustion engine, said engine comprising a crankcase positioned forwardly in said power head and adapted to rotatably support a crankshaft, a cylinder extending generally rearwardly from said crankcase and containing a piston for driving a crankshaft, an intake port for admitting a charge to said crankcase, and an intake pipe connected at its outlet end to said intake port and extending generally rearwardly therefrom for delivering a charge flowing in a generally forward direction to said intake port and to said crankcase.
An outboard motor adapted to be affixed for tilt and trim movement at a forward point of said outboard motor relative to the hull of an associated watercraft, said outboard motor including a power head containing a two cycle, crankcase compression, internal combustion engine, said engine comprising a crankcase positioned forwardly in said power head and adapted to rotatably support a crankshaft, a pair of angularly disposed cylinders extending generally rearwardly from said crankcase and each containing a piston for driving a crankshaft, said cylinders defining a valley therebetween, intake port means in said valley for admitting a charge to said crankcase, and intake pipe means in said valley and connected at its outlet end to said intake port means and extending generally rearwardly therefrom in said valley for delivering a charge flowing in a forward direction to said crankcase.
Dependencies are inferred from the claim text.