涂料供给：齿轮式泵浦输送方式。

Paint supply: gear type pump transmission mode.

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但是传统的二齿轮式齿轮泵存在较大的不平衡径向力，成为制约齿轮泵寿命的主要因素。

However, the heavier unbalanced radial force existed in the traditional two-gear's gear pump is a chief factor to affect the pump's service life.

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讨论了二从动轮式复合齿轮泵的结构原理，导出了排量、平均流量、瞬时流量和流量脉动率的计算公式。

This paper analyzes the flow pulsation in a compound gear pump with 2-idlers, derives formulae for calculating displacement, average flow velocity, instantaneous flow and pulsation flow.

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