| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a 2-cylinder 2-stroke internal combustion engine provided with operating characteristics more excellent than that of 4-cylinder 4-stroke engine. <P>SOLUTION: The invention provides a 2-stroke engine comprising two opposed cylinders, Each cylinder houses two opposed pistons and has at least one exhaust port, at least one intake port, a crankshaft having asymmetrically arranged journals and scotch yoke mechanisms for driving the journals from the pistons. The pistons in each cylinder operate to open its exhaust port or ports before opening its intake port or ports and to close its exhaust port or ports before closing its intake port or ports. <P>COPYRIGHT: (C)2012,JPO&INPIT |
