| 摘要 |
PROBLEM TO BE SOLVED: To provide a brake system of a transmission capable of cooling a friction plate with high responsiveness and high efficiency.SOLUTION: A transmission brake system 100 comprises: a friction plate set 110 in which fixed-side friction plates 111 and rotation-side friction plates 112 are alternately disposed; and a piston 116 disposed on one side in an axial direction of the friction plate set 110, the fixed-side friction plates 111 each including a lubricating oil passage going around within the fixed-side friction plate 111; a lubricating-oil introduction port introducing lubricating oil; and a lubricating-oil supply port opening in a facing surface on which the fixed-side friction plate 111 faces the rotation-side friction plate 112 and supplying the lubricating oil flowing in the lubricating-oil passage to the rotation-side friction plate 112, a lubricating oil reservoir being provided in the lubricating oil passage, and the lubricating-oil supply port being provided to communicate with the lubricating oil reservoir. |
