US 12,228,189 B2
Self-sensing and separated dual-cylinder magnetorheological damper
Xiaomin Dong, Chongqing (CN); Xianyu Song, Chongqing (CN); and Jianqiang Yu, Chongqing (CN)
Assigned to CHONGQING UNIVERSITY, Chongqing (CN)
Filed by CHONGQING UNIVERSITY, Chongqing (CN)
Filed on May 25, 2022, as Appl. No. 17/824,053.
Application 17/824,053 is a continuation of application No. PCT/CN2020/130727, filed on Nov. 23, 2020.
Claims priority of application No. 201911176651.5 (CN), filed on Nov. 26, 2019.
Prior Publication US 2022/0290732 A1, Sep. 15, 2022
Int. Cl. F16F 9/53 (2006.01); F16F 9/18 (2006.01); F16F 9/58 (2006.01)
CPC F16F 9/537 (2013.01) [F16F 9/185 (2013.01); F16F 9/58 (2013.01); F16F 2222/06 (2013.01); F16F 2224/045 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A self-sensing and separated dual-cylinder magnetorheological damper, comprising a first piston cylinder and a second piston cylinder which are angularly arranged and in communication with each other, wherein:
the first piston cylinder comprises a piston inner cylinder and a piston outer cylinder which are coaxially provided, the piston inner cylinder, the piston outer cylinder and the second piston cylinder are formed with a magnetorheological fluid circulation channel for circulating magnetorheological fluid;
the piston inner cylinder is provided with a piston rod assembly reciprocating in an axial direction of the piston inner cylinder, the magnetorheological liquid forms a first circulation loop when the piston rod assembly is compressed and a second circulation loop respectively when the piston rod assembly is restored, a magnetorheological liquid adjustment mechanism for forming the first circulation loop and the second circulation loop is provided within the second piston cylinder; and
the piston rod assembly comprises a piston rod, a piston head fixedly connected to the piston rod, and a seal ring arranged on the piston head, and a primary coil and a secondary induction coil are arranged on an outer wall of the piston inner cylinder.