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Patent Searching and Data


Title:
ポンプ装置
Document Type and Number:
Japanese Patent JP3985023
Kind Code:
B2
Abstract:
It is an object of the invention to provide a pump apparatus of simple construction with a bearing structure, for which a lubricant is unnecessary. A flow passage for a refrigerant (liquid ammonia) is formed in a housing to provide communication between a suction port and a discharge port, and slide bearing members formed of amorphous carbon are provided in the housing to be fitted into the flow passage to support a rotating shaft. Drive means for rotating the rotating shaft is constituted by a rotor, which is fitted into the flow passage and provided with the rotating shaft, and a stator, which is provided outside the housing to surround the rotor, and a pump body is provided midway the flow passage and connected to the rotating shaft to pump a fluid.

Inventors:
Shozo Katsukura
Katsukura Mikine
Furukawa Masao
Koji Miyazaki
Yuji Aoyagi
Naoki Miyagi
Application Number:
JP2001079595A
Publication Date:
October 03, 2007
Filing Date:
March 19, 2001
Export Citation:
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Assignee:
Shozo Katsukura
Katsukura Mikine
International Classes:
F04B39/00; B64G1/22; F04C2/10; B64G1/50; B64G1/64; F01C21/02; F04C11/00; F04C15/00; F04C29/00; F16C17/02; F16C31/02; F16C33/16; F16C33/24
Domestic Patent References:
JP2000092781A
JP4081586A
Attorney, Agent or Firm:
Keiichiro Saikyo
Minetarou Hirose
Mikio Takeuchi