发明名称 |
PRESSURE SEAL FOR A VACUUM PUMP |
摘要 |
The invention concerns a vacuum pump consisting in the assembly of two stator half-shells (101, 102) and two directly mounted end parts (31, 32) with an interposed single-piece continuous pressure seal (33). The pressure seal (33) comprises two annular end parts (34, 35) generally parallel to each other and connected by two side-members (36, 37) which are generally perpendicular thereto. Thus, the number of components to be assembled to produce an multistage dry vacuum pump is reduced, while providing satisfactory impermeability to outside atmosphere.
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申请公布号 |
WO0216773(A8) |
申请公布日期 |
2002.07.11 |
申请号 |
WO2001FR02581 |
申请日期 |
2001.08.09 |
申请人 |
ALCATEL;DURAND, PASCAL;BOURGEOIS, EMMANUEL |
发明人 |
DURAND, PASCAL;BOURGEOIS, EMMANUEL |
分类号 |
F04B39/00;F01C21/10;F04C18/08;F04C18/12;F04C23/00;F04C25/02;F04C27/00;F04C29/00;(IPC1-7):F04C23/00 |
主分类号 |
F04B39/00 |
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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