| 摘要 |
PURPOSE: A continuously variable gear is provided to simplify the structure and to extend the shift region. CONSTITUTION: An input axis is connected with a driving gear for a differential gear. A side of the differential gear is connected with a san gear axis at a gear ratio of one to one while the other side of the differential gear is connected with a ring gear at a ratio of one to one. The driving force of an engine is distributed to the san gear and the ring gear. A pump connected to the san gear controls the circulation of a fluid. The fluid in the oil pump is pressurized by high pressure to prevent the cavitation when working a valve. That is, the fluid passes the valve and continues to circulate when the engine is driven. A speed controller functions as a resistance to the rotation of the san gear to reduce the rotation number of the san gear, therefore, the variable shifting is realized without step difference.
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