FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering, to electromechanical energy converters and can be used as a device fixed to a wheel pair of a railway vehicle. Piezoelectric generator comprises wheel pair coupled with car bogie, which comprises coaxially rigidly mounted wavy surface with waves perpendicular to axis of rotation, interacting through guide grooves with rollers of piezoelectric generators radially installed relative to wheel pair rotation axis. Piezoelectric generators are rigidly connected with the car bogie.
EFFECT: preventing overload of piezoelectric elements.
1 cl, 2 dwg
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