Title:
A TURBO TYPE FLUID MACHINERY
Document Type and Number:
WIPO Patent Application WO/1999/017024
Kind Code:
A1
Abstract:
A turbo type fluid machinery, comprising a housing, at least one impeller arranged rotatably around one axis of rotation in the housing, and a diffuser made of resin for setting a diffuser channel around the impeller, a supporting member disposed in the housing and pressed by the diffuser in the axial direction to fix and support the diffuser in the axial direction in the housing, and an elastic member held between the supporting member and the pressed surface of the diffuser. An O-ring groove is disposed in the pressed surface of the diffuser so as to surround the axis of rotation, and the elastic member can be set inside the ring groove as an O-ring.
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Inventors:
OHSAKI AKIHIRO (JP)
Application Number:
PCT/JP1998/004406
Publication Date:
April 08, 1999
Filing Date:
September 30, 1998
Export Citation:
Assignee:
EBARA CORP (JP)
OHSAKI AKIHIRO (JP)
OHSAKI AKIHIRO (JP)
International Classes:
F04D1/06; F04D29/08; F04D29/42; F04D1/08; F04D29/44; (IPC1-7): F04D1/08; F04D29/42; F04D29/44
Foreign References:
| JPS60131700U | 1985-09-03 | |||
| US4859144A | 1989-08-22 |
Other References:
See also references of EP 1028255A4
Attorney, Agent or Firm:
Shamoto, Ichio (New Ohtemachi Building 2-1, Ohtemachi 2-chome Chiyoda-ku Tokyo, JP)
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