罗茨泵困油现象机理剖析与缓解措施验证
李玉龙,宋安然,宋陆昊,刘天涯

Mechanism analysis and relief measure verification of trapped-oil phenomenon in Roots pumps
Yulong LI,Anran SONG,Luhao SONG,Tianya LIU
图7 /无卸荷槽渐开线罗茨泵的介质压力曲线
Fig.7 Medium pressure curves of involute Roots pumps with/without relief grooves