| 摘要 |
PURPOSE:To hold fixed area of an opening hole throughout a long time, by providing intake and exhaust valve holes in a cylinder liner in accordance with an engine cycle pattern and synchronously rotating the cylinder liner with a crankshaft. CONSTITUTION:A cylinder liner 1 is rotatably provided through bearings 10, 11. A bevel gear 12 is provided to a crankshaft 13 and meshed to a bevel gear 15 mounted to a lower part of the cylinder liner 1. A rotary angle theta of the crankshaft 13 and rotary angle of the cylinder liner 1 are synchronously arranged in such a manner that an intake port 8 and intake valve hole 6 are overlapped at each time a piston head comes to the top dead center. Accordingly, operating fluid is sucked into a cylinder, during the time the intake port 8 and the intake valve hole 6 are overlapped, intake action is continued. In this way, every timing pattern of intake and exhaust valves can be arranged. |
