| Original document(29 pages) 中文版 |
The dry vacuum pump includes a box with inner tube to communicate the suction port and the exhaust port; spiral rotors on the shaft supporting the box and with spiral toth part held inside the iner tube when in mesh state; mutually meshed timing gear installed onto the shafts of the two spiral rotors; and locking mechanism fixing the timing gear onto the shaft. The shafts and the toothed parts are made of nodular cast iron for required vacuum degree. In addition, the toothed part has a conic section in the exhaust end and a small diameter ground pin section to prevent sintering of the toothed part. There is a section straight tube for eliminating silencer and preventing deposit in pipeline. |
Application Number
申请号 |
01123498 |
Application Date
申请日 |
2001.07.27 |
| Title 名称 |
Dry vacuum pump |
Publication Number
公开号 |
1399074 |
Publication Date
公开日 |
2003.02.26 |
| Approval Pub. Date |
|
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 |
Yoshimura Masashi, Takahashi Masaaki |
| Attorney & Agent 代理人 |
wang huaqiang |
| More information 更 多 信 息 |
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