发明名称 |
Method for the evacuation of a low-vacuum chamber and of a HGH-vacuum chamber, as well as a high-vacuum apparatus for the practice thereof |
摘要 |
For the evacuation of a low-vacuum chamber (4) and of a high-vacuum chamber (5), two pump trains (6, 7) are provided, each consisting of a vacuum pump unit (8, 9) and a forepump unit (10, 11). The forepump unit (11) of the pump train (7) of the high-vacuum chamber (5) can draw selectively from the vacuum pump unit (9) of the high-vacuum chamber (5) or from a high-vacuum pump unit (12) connected likewise to the high-vacuum chamber (5). The vacuum pump unit (9) can aspirate either from the highvacuum chamber (5) or from the low-vacuum chamber (4) and discharge to the forepump unit (10) of pump train (6) or to the forepump unit (11) of pump train (7).
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申请公布号 |
US5228838(A) |
申请公布日期 |
1993.07.20 |
申请号 |
US19920936035 |
申请日期 |
1992.08.26 |
申请人 |
LEYBOLD AKTIENGESELLSCHAFT |
发明人 |
GEBELE, THOMAS;BUSCHBECK, WOLFGANG |
分类号 |
B01J3/00;F04B37/14 |
主分类号 |
B01J3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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