发明名称 Screw spindle vacuum pump with gas cooling
摘要 The pump has in-feed of cooled gas or fresh air through an open or closed gas cycle in the space at the pressure side/outlet side of the rotors. The gas cycle is a gas/gas or gas/liquid heat exchanger and contains a blower to drive the cycle.
申请公布号 DE19817351(A1) 申请公布日期 1999.10.21
申请号 DE19981017351 申请日期 1998.04.18
申请人 FRIEDEN, PETER 发明人 FRIEDEN, PETER
分类号 F04C18/16;F04C29/00;F04C29/02;F04C29/04;F04C29/12;(IPC1-7):F04C18/16;F04C23/02;F04C25/02;F04C29/10 主分类号 F04C18/16
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