Research indicated that parity of vane number have no direct relation with flow pulsation of vane pump and the flow pulsation frequency is independent from the odd or even number of pistons.

• 得出了叶片数的奇偶性与叶片泵的流量脉动并无直接关系，且流量脉动频率与柱塞数的奇偶性无关的结论。