德国BOSCH内啮合齿轮泵生产的支撑块浮动式内啮合齿轮泵，内外齿轮均采用修正渐开线齿形，用活动月牙板将高、低压腔分开，并在径向形成压力补偿，使得内外齿齿顶与月牙板之间形成几无间隙的密封，轴向动补偿盘则保证轴向间隙的良好密封，使得该泵的内泄漏减至zui低。低压12Mpa、中压21 Mpa、高压33 Mpa。此结构容积效率高、结构复杂，制造成本高。他适用于输送各种轻质、挥发性液体，直至重质、粘稠液体，甚至半固态液体。广泛应用于石油、化工、油脂、涂料等行业。
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