Patent ID: 11965531
Assignee: CLEARMOTION, INC.
Field: Transport (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 0:
1. A hydraulic actuator comprising:
a hydraulic cylinder that includes a first chamber and a second chamber;
a hydraulic pump, with a first port and a second port, capable of generating a pressure differential between the first chamber and the second chamber;
a first gas charged accumulator;
a second gas charged accumulator;
a first fluid flow path fluidically connecting the first port to the first chamber;
a second fluid flow path fluidically connecting the first gas charged accumulator to the first fluid flow path;
a third fluid flow path fluidically connecting the second port to the second chamber;
a fourth fluid flow path fluidically connecting the second gas charged accumulator to the third fluid flow path; and
a hydraulic restriction arranged along the second flow path, wherein the hydraulic restriction is configured and positioned to modify a compliance of the first flow path relative to the third flow path, as a function of a frequency of an oscillating input.