随著齿轮啮合重合系数的减小，齿轮泵的流量增大，困油容积和流量脉动率减小。

If the coefficient of engagement overlap decreases, the flow aggrandize, trapping volume and the flow pulsating ratio decreases.

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在获得齿轮内啮合传动的齿侧间隙计算公式以后，结合齿对刚度的计算公式，推导出齿轮内啮合传动的加载重合度及载荷修正系数。

After getting the formula about the normal backlash and the stiffness of the tooth pairs of the gear, the contact ratio and the load correction factor could be obtained.

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提出了一种新的重合度系数公式。

A new formula of contact ratio factor is proposed.

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