| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus for kinetic energy storage, having high efficiency by minimizing influence of air friction in the apparatus, and capable of dispensing with a high vacuum pump which is externally mounted, or dispensing with an additional high vacuum pump stage in exhausting.SOLUTION: An apparatus for kinetic energy storage has an electrical machine 8 operable in a motor mode and/or a generator mode. At least one energy recovery system is disposed to temporarily store generated rotational kinetic energy. The energy recovery system converts the rotational kinetic energy into electric energy. The energy recovery system includes at least one flywheel 5 formed as a rotor, and a stator disposed in a housing 2. The rotor and/or the stator are formed as at least one vacuum pump stage 13a, 13b. |
