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Title:
【発明の名称】自動調心浮動タービンインペラ
Document Type and Number:
Japanese Patent JPH06506279
Kind Code:
A
Abstract:
A floating, self-centering impeller for a turbine pump assembly has a plurality of "D-shaped" recesses arranged in one or more circumferential rows on its end surfaces to induce pressurized film between its end surfaces and adjacent thrust surfaces of side plates to prevent galling or seizing of the pump as the impeller is rotated. A corresponding array of such "D-shaped" recesses may be provided on the opposing surfaces of the side plates.

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Inventors:
Zieg Hartner, Leonard, Jay.
Application Number:
JP50375092A
Publication Date:
July 14, 1994
Filing Date:
December 19, 1991
Export Citation:
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Assignee:
Roy E. Roth Company
International Classes:
F04D5/00; F04D23/00; F04D29/04; F04D29/046; F04D29/18; F04D29/20; F04D29/26; F16C32/06; F16C33/10; (IPC1-7): F04D29/04; F04D5/00; F16C32/06
Attorney, Agent or Firm:
Yukio Ogata