| 摘要 |
A cylinder direct injection engine designed for stable combustion wherein a difference in size between a piston stroke and a cylinder bore ranges from 0% to 4%, and the piston stroke is greater than the cylinder bore when the difference is unequal to 0%. The cylinder direct injection engine can also have a 50 mm to 80 mm piston stroke, a 50 mm to 92 mm cylinder bore, and a 0.8 to 1.4 stroke-bore ratio or a cylinder bore set to be less than 85 mm with respect to a 15° to 90° cone angle of fuel jetting in a conical stream pattern from the injector.
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