| 摘要 |
A variable gear ratio planetary is provided that the radius direction size of planetary can be reduced and the assembling can be improved. A variable gear ratio planetary comprises a first gear(301), a first planetary gear(303) circumscribing in the first gear, a first planetary(300) including the first planetary gear and the primary ring gear inscribing, a second gear(315), a second planet gear(311) circumscribing in the second gear, a second planet gear mechanism(310) including the second planet gear and the second ring gear inscribing, a sharing carrier(320) supporting first and second planetary gear, a torque secondary providing apparatus(330) which selectively delivers the power to the first and second ring gear, a housing(340) that surrounds the first and second planetary and share carrier.
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