发明申请
- 专利标题: Dry-running reciprocating vacuum pump
- 专利标题(中): 干式往复式真空泵
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申请号: US11130609申请日: 2005-05-17
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公开(公告)号: US20050260085A1公开(公告)日: 2005-11-24
- 发明人: Armin Conrad , Wolfang Losch
- 申请人: Armin Conrad , Wolfang Losch
- 优先权: DE102004024562.2 20040518
- 主分类号: F04B7/04
- IPC分类号: F04B7/04 ; F04B17/03 ; F04B35/04 ; F04B37/14 ; F04B49/06 ; H02K1/27 ; H02K7/14 ; F04B17/00
摘要:
A dry-running reciprocating vacuum pump includes at least one pump stage located in the housing and including a cylinder having at least one gas inlet, a gas outlet, and a piston reciprocating in the cylinder and controlling the at least one inlet, a drive system for driving the piston-driving shaft, which is connected by a crank gear mechanism with the piston, and including a plurality of permanent magnets arranged on the shaft and stationary electrical coils surrounding the permanent magnets for producing a rotatable magnetic field, and a control electronics located in the pump housing for operating the coils.
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