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Title:
MAGNETIC-GEARED ELECTRICAL MACHINE AND ELECTRIC POWER GENERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/163601
Kind Code:
A1
Abstract:
A magnetic-geared electrical machine comprising: a stator including a stator coil; a first rotor that includes a plurality of pole pieces arranged with a first radial-direction gap from the stator and defines, between the first rotor and the stator, a first cooling passage including the first radial-direction gap; a second rotor that includes a plurality of rotor magnets, is arranged with a second radial-direction gap across the first rotor from the pole pieces on the opposite side of the stator in the radial direction, and defines, between the second rotor and the first rotor, a second cooling passage including the second radial-direction gap; an inlet cavity for a cooling gas, the inlet cavity being formed on one end side of the stator, the first rotor, and the second rotor in the axial direction; and an outlet cavity for receiving the cooling gas that has passed through the first cooling passage and the second cooling passage, the outlet cavity being formed on the other end side of the stator, the first rotor, and the second rotor in the axial direction. The dimension of the first radial-direction gap is larger than the dimension of the second radial-direction gap.

Inventors:
SAKAI MASAYUKI (JP)
AOKI YASUTAKA (JP)
MATSUSHITA TAKATOSHI (JP)
SASAKI MIKITO (JP)
Application Number:
PCT/JP2022/002500
Publication Date:
August 04, 2022
Filing Date:
January 25, 2022
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI POWER LTD (JP)
International Classes:
H02K9/02; H02K16/02
Foreign References:
JP6804700B12020-12-23
JP2011092000A2011-05-06
Attorney, Agent or Firm:
SSIP PATENT ATTORNEY CORPORATION (JP)
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