Patent ID: 11879451
Assignee: CLEARMOTION, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A pressure-balanced active buffer for mitigating flow ripple in a hydraulic circuit that hydraulically connects a pump and a load, the pressure-balanced active buffer comprising:
a buffer reservoir hydraulically connected to the hydraulic circuit;
a balance reservoir hydraulically connected to the hydraulic circuit;
a piston assembly comprising a first piston with a first surface exposed to hydraulic fluid in the buffer reservoir and a second piston with a second surface exposed to hydraulic fluid in the balance reservoir;
an intermediate chamber, at least partially filled with a compressible fluid, interposed between the first piston and the second piston; and
an actuator physically attached to the first piston.