Title:
SEALING DEVICE AND DYNAMO-ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/220950
Kind Code:
A1
Abstract:
A seal device according to at least one embodiment comprises three or more arcuate fins arranged in an axial direction. The arcuate fins include: a first fin, which is one of two outermost fins positioned farthest to the outer side in the axial direction; a second fin disposed adjacent to the first fin in the axial direction; and at least one third fin disposed on the side opposite from the first fin with the second fin therebetween in the axial direction. The third fin is disposed at an incline in relation to the radial direction such that the tip end part is positioned nearer to the first fin in the axial direction than the base end part, and the third fin may have an inclination angle greater than that of the first fin or the second fin in relation to the radial direction.
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Inventors:
OMURA NAOTO (JP)
MATSUMOTO KAZUYUKI (JP)
KUWAMURA YOSHIHIRO (JP)
KONISHI EIJI (JP)
TANAKA KENTARO (JP)
MATSUMOTO KAZUYUKI (JP)
KUWAMURA YOSHIHIRO (JP)
KONISHI EIJI (JP)
TANAKA KENTARO (JP)
Application Number:
PCT/JP2021/016402
Publication Date:
November 04, 2021
Filing Date:
April 23, 2021
Export Citation:
Assignee:
MITSUBISHI POWER LTD (JP)
International Classes:
F16N7/08; F01D11/02; F01D11/08; F02C7/28; F16J15/447
Domestic Patent References:
| WO2018155636A1 | 2018-08-30 |
Foreign References:
| JPH1151200A | 1999-02-23 | |||
| JP2005180278A | 2005-07-07 | |||
| EP2415970A2 | 2012-02-08 |
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
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