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Novel Type of Double-Side Asymmetric Dry Scroll Vacuum Pump and Its Simulated Characteristics
Pages: 1199-1202
Year: Issue:  12
Journal: Vacuum Science and Technology

Keyword:  Vacuum pumpScrollPumping speedDouble-SideAsymmetric;
Abstract: A novel type of the double-side asymmetric dry scroll vacuum pump was proposed to heighten its strengths,including the simple structure,high reliability,low pressure and low noises;and to improve its weaknesses,such as the low pumping speed,manufacturing difficulties,and instability in the initial pumping stage.The structures and pumping characteristics of the newly-developed double-side asymmetric dry scroll vacuum pump were physically modeled, empirically approximated,and analytically simulated.The preliminary results shou that the newly-designed,double-side asymmetric dry scroll pumps outperforms the conventional one in manyways.For example,a higher pumping-speed,a relaxation of the strength requirement of the scroll wraps,and increased utilization efficiency of the scroll plates.
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