Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2003.04a
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- Pages.2101-2104
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- 2003
An Experimental Study on Pumping Speed of Disk-Type Drag Pumps for Spiral Channels in Rarefied Gas Flows
희박기체영역에서의 나선형 홈을 가진 원판형 드래그펌프의 배기속도에 관한 실험적 연구
- Published : 2003.04.23
Abstract
Experimental investigations are performed for the rarefied gas flows in a disk-type drag pump (DTDP). The pump considered in this paper consists of grooved spiral channel on rotors and planar stators. The flow-metre method is adopted to calculate the pumping speed. Compression ratio and pumping speeds for the nitrogen gas are measured under the inlet pressure range of