Title:
BEARING DEVICE AND VERTICAL SHAFT PUMP
Document Type and Number:
Japanese Patent JP3930734
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a bearing device and a vertical shaft pump not requiring any water supplying facility and sustaining a non-water operation for a long time.
SOLUTION: The bearing device 16 is equipped with a rotary shaft 4 and a bearing 13 to bear the rotary shaft 4 rotatably, wherein that portion of the periphery of the rotary shaft 4 which contacts with the bearing 13 is subjected to a fusion spray of chromium carbide, and the bearing 13 is formed from a composite of polyimide resin and carbon fibers or a high strength carbon.
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Inventors:
Yukinobu Saeki
Masaaki Horiuchi
Masaaki Horiuchi
Application Number:
JP2001400833A
Publication Date:
June 13, 2007
Filing Date:
December 28, 2001
Export Citation:
Assignee:
Ebara Corporation
International Classes:
F04D29/02; F16C17/14; F04D13/00; F04D29/04; F04D29/043; F04D29/046; F16C33/12; F16C33/20; F16C33/24; (IPC1-7): F16C17/14; F04D13/00; F04D29/02; F04D29/04; F16C33/12; F16C33/20; F16C33/24
Domestic Patent References:
| JP2001082484A | ||||
| JP2000314423A | ||||
| JP6341429A |
Attorney, Agent or Firm:
Sadaji Miyakawa