Whole model of impeller clearance and labyrinth seal are built up, and the effect of seals with two sides of impeller to axial thrust is considered fully.
建立了叶轮间隙和迷宫密封的整体模型，并充分考虑了叶轮两侧密封对轴向推力的影响。
The optimization design method, which considers the impeller and volute casing as a whole and the effects of viscosity, is proposed.
提出将叶轮、蜗壳作一体的并考虑粘度的油泵水力优化方法。
The impeller is produced a whole by the plastic injection or the aluminum alloy pressure casting.
叶轮由塑料注射或铝合金压铸成一体式。
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