| 摘要 |
A regenerative hydraulic vibration damper 1 is provided. The vibration damper 1 comprises: a hydraulic fluid retaining volume including a piston 6 and cylinder 4 and optionally one or more further tubes 12,14, the cylinder or further tubes have a plurality of axially spaced strips of piezoelectric material 32 extending circumferentially in or on a wall of the respective tube to generate electricity from shock waves in the hydraulic fluid. An electrical circuit (see Figures 5 & 7 ) rectifies, combines and outputs current from the strips of piezoelectric material 32 to the vehicle battery or other load. As the strips of piezoelectric material 32 are axially spaced, they may generate electricity with different phases, which is combined and smoothed via a low pass filter (42 in Figures 5 & 7) to produce a DC output. A rotatable shaft 28 connected to an electrical generator may be rotated by linear motion of the piston 6 within the cylinder 4 to thereby regenerate energy from shocks. |
