Title:
SUPERCHARGER SEAL STRUCTURE AND SUPERCHARGER
Document Type and Number:
WIPO Patent Application WO/2024/038492
Kind Code:
A1
Abstract:
This supercharger seal structure comprises at least a plurality of seal members provided to a seal gap formed between a rotating member, which includes a rotating shaft and a rotating wheel, and a stationary member, which includes a housing that accommodates the rotating member, the seal gap allowing communication between a wheel-accommodating space in which the rotating wheel is accommodated and a bearing-accommodating space in which a bearing is accommodated. The plurality of seal members include a first seal member and a second seal member that is disposed closer to the wheel-accommodating space than is the first seal member. If an angular position is defined such that vertically above the axis of the rotating shaft is 0° and the angle increases along the rotation direction of the rotating shaft, the first seal member is disposed such that the midpoint of an abutment gap (first midpoint) is positioned within the angular position range of −90° to 90°, and the second seal member is disposed such that the difference in angular position between the midpoint of an abutment gap (second midpoint) and the first midpoint is within the range of 90° to 180°.
Inventors:
EHANA TAKUYA (JP)
KINOSHITA YUJI (JP)
KINOSHITA YUJI (JP)
Application Number:
PCT/JP2022/030894
Publication Date:
February 22, 2024
Filing Date:
August 15, 2022
Export Citation:
Assignee:
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (JP)
International Classes:
F01D25/16
Domestic Patent References:
| WO2015128935A1 | 2015-09-03 |
Foreign References:
| JP2021095983A | 2021-06-24 | |||
| JP2012057507A | 2012-03-22 | |||
| JP2008106823A | 2008-05-08 | |||
| JP2022054670A | 2022-04-07 |
Attorney, Agent or Firm:
SSIP PATENT ATTORNEY CORPORATION (JP)
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