| 摘要 |
A hydraulic transmission mechanism for heavy rolling stocks and the like, which provides a steplessly variable speed change ratio, while ensuring a very high output torque at a reduced speed. An assembly of a hydraulic pump and a hydraulic motor is connected to the input shafts of the transmission, and the output shaft of the transmission is operatively connected to both the input and output shaft from the hydraulic motor, in a selective manner, through two clutch assemblies and at least two differential gear means.
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