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Title:
Sealing device for rotor shaft of fluid machine
Abstract:
A sealing device for rotor shaft of fluid machine. The sealing device has a solid annular packing extending circumferentially around the rotor shaft and including a plurality of circumferentially spaced segments. Each segment has a radially inner surface which functions as the sliding surface which is in sliding contact with the surface of the rotor shaft. The sliding surface is inclined from its edge adjacent to the low pressure side of the fluid machine radially outwardly, so that the sliding surface makes the initial sliding contact with the rotor shaft surface only at its edge adjacent to the low pressure side.
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Inventors:
Takagi, Nobuho (Hitachi, JP) Maegawa, Muneo (Hitachi, JP) Nii, Katsutoshi (Hitachi, JP)
Application Number:
948549
Filing Date: 1978-10-04 Publication_date: 1979-12-25 Assignee:
Hitachi, Ltd. (Tokyo, JP)
Primary Class(es):
277/543
277/930
Other Classes:
US Patent Ref:
Other Refs:
Primary Examiner:
Ward, Jr., Robert S.
Assistant Examiner:
Attorney:
Beall, Jr.; Thomas E.
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