| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic type non-stage transmission (HST) that is compact and has good transmission efficiency with little oil leakage from a plunger block even in high-speed operation.SOLUTION: A plunger block 19 of a hydraulic pump 14 and a plunger block 24 of a hydraulic motor 15 are inserted and fitted into a center case 16. A first main oil passage 29A is provided in one side part of the center case 16 and a second main oil passage 29B is provided in the other side part thereof so as to communicate with plunger ports 19c1, 24c1 opened on the outer peripheral surfaces of the respective plunger block 19, 24. An oil passage block 81 including a pair of charge check valves 82 and a pair of relief valves 83 is attached to the center case 16. |
