输送皂角泵内有设计合理的泄油和回油槽，是齿轮在工作中承受的扭矩力最小，因此轴承负荷小，磨损小，泵效率高。

Pump is the drainage and back into the groove of reasonable design, is a gear in the work under the minimum torque force, so the bearing load is small, wear small, pump with high efficiency.

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戒指(材料见表6.1)的热以不同的方式处理根据齿轮上的戒指，在载有最高负荷区接触压力的压力。

The rings (for materials see Table 6.1) are heat-treated in different ways according to the strain on the gear rings and the contact pressure of the area carrying the highest load.

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齿轮泵若是第一次运行，或长期闲置后再使用，最好在空载或小负荷情况下先跑合一小时左右。

If the first gear pump operation, or long-term idle after use, preferably in small load or no-load circumstances Xianpao One hour.

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