The high parameter gear pump for polymer proceeding is an important branch of gear pump technology , and it is used more and more frequently with the great increase of the polymer equipment 随着大型聚合物生产装置的迅猛发展，高参数齿轮泵的应用日益广泛。聚合物熔体输送增压用高参数齿轮泵的研究制造是齿轮泵技术发展的一个重要方面。
The pump gears with large module and less number of teeth are adopted by the high viscidity gear pump . when they are in mesh , meshing interference happens . in order to avoid interference of flank , tooth profile is modified 高粘度齿轮泵中的泵齿轮通常模数大，齿数少，它们啮合时常发生干涉，为了消除啮合干涉，需对泵齿轮进行修形。
2 . the flux characteristics of ordinary helical gear pump are lucubrated by theory for the first time , on this condition the selective qualification of the helical gear pump is gained 首次对普通斜齿齿轮泵流量特性进行了深入的理论研究，在此基础上研究了全齿廓啮合斜齿齿轮泵流量特性，首次得到了完全消除斜齿齿轮泵流量脉动的螺旋角的选择条件。
