FIELD: electricity.
SUBSTANCE: invention relates to a compressed air energy storage unit. Compressed air energy storage unit comprises an electrical input/output circuit, compressor and expansion means and an artificially created compressed air reservoir. Compressor and expansion means comprise piston pump (200) and are configured to switch between pump and generator modes. Pistons of piston pump (200) consist of an electrically and thermally conductive liquid. Electromagnets with a core and coils are provided for inductive driving of the electrically conductive liquid. Core forms a closed loop and comprises two parallel straight parts of a cylinder, around which the coils are wound.
EFFECT: invention is aimed at creating a simple and effective design.
15 cl, 22 dwg
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