Title:
COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2022/163011
Kind Code:
A1
Abstract:
A compressor (1) is provided with a shaft (3) arranged along an axis of rotation (31), a rotor core (611) fixed to the shaft (3), a stator (62) for causing the rotor core (611) to rotate about the axis of rotation (31), and a compression unit (5) driven by rotation of the shaft (3). The rotor core (611) is formed by stacking a plurality of core sheets. Each of the plurality of core sheets has formed thereon a balancing hole for causing the center of gravity to lean toward the radial direction about the axis of rotation (31). The rotor core (611) is provided with an eccentric portion (73) and an eccentricity relaxing portion (75). The eccentric portion (73) is such that the center of gravity of the eccentric portion (73) is eccentric in the radial direction due to the plurality of balancing holes (88) being consecutive in the axial direction parallel to the axis of rotation (31). The eccentricity relaxing portion (75) is such that the eccentricity from the balancing hole (88) of a core sheet (83) is canceled out by the eccentricity from a balancing hole (98) of another core sheet (93).
Inventors:
SUZUKI TAKASHI (JP)
Application Number:
PCT/JP2021/034875
Publication Date:
August 04, 2022
Filing Date:
September 22, 2021
Export Citation:
Assignee:
FUJITSU GENERAL LTD (JP)
International Classes:
H02K1/22; H02K7/14; H02K15/16
Foreign References:
| JP2003219616A | 2003-07-31 | |||
| JPH04344153A | 1992-11-30 | |||
| JPH0588164U | 1993-11-26 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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