Patent ID: 11859689
Assignee: CRRC QINGDAO SIFANG CO., LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC F

Claim 9:
10. A damping system, comprising:
a controller; and
at least one active control anti-yaw damper provided on a bogie, the at least one active control anti-yaw damper includes a hydraulic cylinder; a piston configured to divide an interior of the hydraulic cylinder into two cylinder blocks when reciprocating inside the hydraulic cylinder, an oil reservoir; and a reversing valve, wherein the two cylinder blocks communicate with the oil reservoir through two main oil lines respectively to form a primary loop; the reversing valve is installed between the two main oil lines and the oil reservoir and is configured to change a flow direction of the primary loop when the active control anti-yaw damper is in an active mode and adjust a displacement of the piston within the hydraulic cylinder;
the two cylinder blocks communicate with the reversing valve through the two main oil lines, respectively, and the reversing valve communicates with the oil reservoir through two drive oil lines, respectively, and the reversing valve has at least two switchable working positions;
the active control anti-yaw damper further comprises a drive mechanism connected in series on any of the drive oil lines; an accumulation branch having an end communicating with any of the drive oil lines and being located between the reversing valve and the drive mechanism and another end communicating with the oil reservoir, wherein a pressure sensor, an accumulator and a relief valve are connected in series on the accumulation branch;
wherein a signal input end and a signal output end of the controller are connected with a respective one of the at least one active control anti-yaw damper.