| Original document(18 pages) 中文版 |
In the present invention, between the position for the spiral closing line of the spiral rotor to shut the suction port and the position for it to open the discharge port, is provided a water pipeline communicated to the sealing chamber, or in the pipeline communicated to the suction port, is provided an on-off valve being opened at pressure lower than -380 mmHg. |
Application Number
申请号 |
01123500 |
Application Date
申请日 |
2001.07.27 |
| Title 名称 |
Spiral rotor-type wet vacuum pump |
Publication Number
公开号 |
1399075 |
Publication Date
公开日 |
2003.02.26 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
F04C18/18,F04C25/02 |
Applicant(s) Name
申请人 |
Daiko Machinery Industry Co., Ltd. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
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| Attorney & Agent 代理人 |
wang huaqiang |
| More information 更 多 信 息 |
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