发明名称 |
Screw vacuum pump unit. |
摘要 |
<p>The present invention provides a screw vacuum pump unit in which both a screw block and a driving motor are mounted on one side surface of a casing of a speed change gear, both axes of a male rotor and a female rotor in the screw block are arranged in vertical adjacency within a substantially perpendicular virtual plane, and suction ports and discharge ports are arranged on both sides with the vertical plane intervening therebetween, whereby maintenance can be facilitated.</p> |
申请公布号 |
EP0237734(A2) |
申请公布日期 |
1987.09.23 |
申请号 |
EP19870101053 |
申请日期 |
1987.01.26 |
申请人 |
HITACHI, LTD. |
发明人 |
SHIINOKI, KAZUAKI;NAYA, KOUTAROU;MITSUHASHI, SHINJI;HAYAKAWA, TADASHI;UCHIDA, RIICHI |
分类号 |
F04C18/16;F04C23/00;F04C25/02;F04C29/00;(IPC1-7):F04C23/02 |
主分类号 |
F04C18/16 |
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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