发明授权
- 专利标题： Vacuum pump with a gas ballast device
- 专利标题（中）： 带镇流器的真空泵
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申请号： US586927申请日： 1996-01-29
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公开(公告)号： US5871338A公开(公告)日： 1999-02-16
- 发明人: Thomas Abelen , Lutz Arndt , Peter Muller
- 申请人： Thomas Abelen , Lutz Arndt , Peter Muller
- 申请人地址： DEX
- 专利权人： Leybold Aktiengesellschaft
- 当前专利权人： Leybold Aktiengesellschaft
- 当前专利权人地址： DEX
- 优先权： DEX4325281.8 19930728
- 主分类号： F04C25/02
- IPC分类号： F04C25/02 ; F04C27/02 ; F04C28/28 ; F04C29/02 ; F04C29/08
摘要：
The invention pertains to a vacuum pump (1) with a closable line (63, 102) through which gas ballast can be fed into the pump chamber (8, 9); to eliminate the danger that a recipient hooked up to the vacuum pump may be charged with air in the event of a pump failure, the invention proposes that the line be equipped with a control valve (59, 60, 61; 98, 99; 109, 110) to regulate the gas ballast feed as a function of operating conditions, such that the line is closed in the event of a pump failure.
公开/授权文献
- US5047893A High-frequency capacitor 公开/授权日：1991-09-10
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