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2. 发明公开

EP1882856A1 Complex dry vacuum pump having Roots and screw rotors 有权
标题翻译： Komplexe Trockenvakuumpumpe mit Roots- und Schraubenrotoren
公开(公告)号：EP1882856A1
公开(公告)日：2008-01-30
申请号：EP07252967.0
申请日：2007-07-27
申请人： LOT Vacuum Co., Ltd.
发明人： Hwang, Tae Kyong , Noh, Myung Keun , Oh, Heaung Shig
IPC分类号： F04C18/08 , F04C18/12 , F04C18/16 , F04C23/00 , F04C29/00
CPC分类号： F04C18/16 , F04C18/084 , F04C18/086 , F04C18/126 , F04C23/005 , F04C29/0085 , F04C2220/12 , F04C2220/30 , F04C2280/02 , F05C2253/20
摘要： A complex dry vacuum pump including a root rotor and a screw rotor, comprising:
a housing having an interior receiving space, an suction opening at one side of the housing, and a discharge opening at another side of the housing;
first and second root rotors (31,32) which are located in the interior receiving space of the housing and are installed in such a manner as to be engaged with each other;
first and second screw rotors (41,42) which are received in the interior receiving space of the housing and are installed in such a manner as to be engaged with each other adjacent to the first and second root rotors;
first and second power transmission shafts extending through each center of the first and second root rotors and the first and second screw rotors;
and a motor which is able to rotate the first and second power transmission shafts;
wherein the first and second root rotors include three lobes (31a,31b,31c).
摘要翻译：一种包括根部转子和螺杆转子的复合干燥真空泵，包括：壳体，其具有内部容纳空间，壳体一侧的吸入口和壳体另一侧的排出口; 第一和第二根转子（31,32），其位于壳体的内部容纳空间中并且以彼此接合的方式安装; 第一和第二螺杆转子（41,42），其被容纳在壳体的内部容纳空间中，并且以相邻的方式安装成与第一和第二根转子相邻; 延伸穿过第一和第二根转子和第一和第二螺杆转子的每个中心的第一和第二动力传动轴; 以及能够旋转第一和第二动力传递轴的电动机; 其中所述第一和第二根转子包括三个凸角（31a，31b，31c）。

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