| 摘要 |
PROBLEM TO BE SOLVED: To improve combustion efficiency by efficiently generating swirl of air fuel mixture in a cylinder boar and improving ignition performance. SOLUTION: An engine includes an intake port making fuel flow into a cylinder bore storing a piston and an intake valve opening and closing flow of fuel to the cylinder bore from the intake port. Swirl is efficiently generated by arranging the intake valve by inclining the same in relation to an axis of the cylinder bore. COPYRIGHT: (C)2007,JPO&INPIT
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