There will also be energy loss in the working process of hydraulic pump, which is mainly caused by the volume loss caused by leakage and the friction caused by the liquid flow in the pump. Therefore, the energy conversion efficiency of the pump is generally not very high, because its conversion heating is inevitable, generating heat will cause energy loss. At the same time, the air tightness and quality of the pump itself have a great impact on its energy conversion efficiency. The energy loss caused by volume loss of the pump with good air tightness will be greatly reduced, while the energy loss caused by friction will be reduced if its surface is smooth and its lubricity is good.
