低流量小型二重回転スクリューポンプの性能向上に関する研究

(ステータ・ケーシング間に封入する高粘度グリースが漏れ特性に及ぼす影響)

抄録

In a small double-rotating screw pump, the stator rotates passively as the rotor rotates. Therefore, there are two structural gaps: one between the rotor and stator, and the other between the stator and casing. Previous studies have suggested that sealing grease between the stator and casing improves pump performance. In this study, three types of high-viscosity grease with different kinematic viscosities were sealed between the stator and casing to clarify the leakage characteristics in this area.