罗茨真空泵性能考核指标——抽速和零流量压缩比的探讨

Study on Pumping Speed and Compression Ratio at Nil Throughput of Roots Vacuum Pump

罗茨泵以抽速作为主性能考核指标不够确切，它不能真实反映罗茨泵的质量水平，建议以零流量压缩比作为考核罗茨泵抽气能力的性能指标。

Abstract It is not exact to take pumping speed as the main performance of Roots vacuum pump, pumping speed can not show the true quality of Roots pump. This paper proposes to use compression ratio at Nil throughput as the main performance of Roots vacuum pump.