德國BOSCH內嚙合齒輪泵生產的支撐塊浮動式內嚙合齒輪泵，內外齒輪均采用修正漸開線齒形，用活動月牙板將高、低壓腔分開，并在徑向形成壓力補償，使得內外齒齒頂與月牙板之間形成幾無間隙的密封，軸向動補償盤則保證軸向間隙的良好密封，使得該泵的內泄漏減至zui低。低壓12Mpa、中壓21 Mpa、高壓33 Mpa。此結構容積效率高、結構復雜，制造成本高。他適用于輸送各種輕質、揮發性液體，直至重質、粘稠液體，甚至半固態液體。廣泛應用于石油、化工、油脂、涂料等行業。
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