| 摘要 |
The present invention relates to a feeding control device for a fluid retarder, which is installed in a fluid retarder to improve a braking force by performing a role of an auxiliary brake by being connected to a driving shaft of a vehicle and generating deceleration torque. The feeding control device for a fluid retarder includes: a housing having a first inlet connecting the inside and the outside, a first outlet, a second inlet, and a second outlet, wherein the inside of the housing is hollow; and a spool having a first flow path and a second flow path and connected to slide along the housing, wherein the outer circumference of the spool is attached to the inside of the housing. The first inlet is connected to the second outlet through the first flow path in accordance with the position of the spool, and the second inlet is closed or is connected to the second outlet through the second flow path. The first inlet is connected to the first outlet and the second outlet through the first flow path, and the second inlet is connected to the second outlet through the second flow path or the first inlet is connected to the first outlet through the first flow path. Also, the second inlet is closed. The feeding control device for a fluid retarder is installed in the retarder to supply a working fluid to an operating chamber in the retarder or to discharge the working fluid. The feeding control device for a fluid retarder also can control a charging rate of the working fluid filled in the retarder. |
