The traditional flow theory of single-acting vane pump does not take the compressibility and the reverse flow of the oil in the discharge port through the relief groove into account.

• 摘要由于单作用叶片泵流量特性的传统分析方法没有考虑油液的可压缩性和卸荷槽回冲流量的影响，由此得出的结论与实际情况相差甚远。