| 摘要 |
A shaftless motor-compressor (1) is disclosed, comprising a casing (3) and at least one compressor stage (9A, 9B) arranged in the casing. Each compressor stage comprises a respective impeller (11A, 11B) arranged for rotation in the casing (3) around a rotation axis (A-A). Each impeller (11A, 11B) is combined with an embedded electric motor (13A, 13B) housed in the casing (3) and comprised of a motor stator (15A, 15B) and a motor rotor (17A, 17B). The motor stator (15A, 15B) of each compressor stage (9A, 9B) circumferentially surrounds the impeller (11A, 1B) and the motor rotor (17A, 17B), integral with the impeller. The motor rotor (17A, 17B) of each stage (9A, 9B) is arranged inside the respective motor stator. |
