另外，被动齿轮与第一从动齿轮及第二从动齿轮其中的一啮合。

The passive gear is engaged to one of the first driven gear or the second driven gear.

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齿轮泵的磨损部位主要有主动轴与衬套、被动齿轮中心孔与轴销、泵壳内腔与齿轮、齿轮端面与泵盖等。

Pump wear parts are mainly drive shaft and bushing, passive gear center hole and shaft pin, pump shell lumen and gear, gear face and pump cover, etc.

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齿轮油泵在运转时主动齿轮带动被动齿轮旋转，当齿轮从啮合到脱开时在吸入侧(A)就形成局部真空，液体被吸入。

Gear pumps in operation when the passive gear driven rotary gear, when the gear was torn off from the mesh to the side when inhaled (a) on the formation of partial vacuum, the liquid to be inhaled.

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