Title:
水噴射式スクリュ圧縮機
Document Type and Number:
Japanese Patent JP5698039
Kind Code:
B2
Abstract:
A screw fluid machine has a first non-contact seal, a second non-contact seal and a lip seal disposed between a rotor chamber and a bearing for a rotor shaft located on the high pressure side, and in this order from the rotor chamber side. It includes a pressurized communicating channel for introducing high-pressure target gas into a pressurized space formed between the first and second non-contact seals, a pressurized pressure detecting device for detecting the pressure of the pressurized space, and an alarm device for generating an alarm when a value detected by the pressurized pressure detecting device falls out of a predefined range of pressurized pressures. The screw fluid machine is capable of detecting or predicting a condition of the shaft sealing device and accurately and reliably reporting the detected condition to an operator.
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Inventors:
Toru Noguchi
Application Number:
JP2011053794A
Publication Date:
April 08, 2015
Filing Date:
March 11, 2011
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
F04C18/16; F04C27/00; F04C28/28
Domestic Patent References:
| JP2004003602A | ||||
| JP2009287413A |
Foreign References:
| US3975123 |
Attorney, Agent or Firm:
Mitsuo Tanaka
Takuji Yamada
Atsushi Maeda
Takuji Yamada
Atsushi Maeda