Also called a positive displacement gear pump means, i.e., like a piston inside the cylinder of the hydraulic pump (domestic service) phone, when a tooth space of the other teeth into the fluid, the liquid was squeezed mechanically discharged. Because the liquid is incompressible, so the liquid and the teeth can not occupy the same space at the same time, so that the hydraulic pump (domestic agent), the liquid was removed. Due to the continuous engagement of the hydraulic pump (domestic maintenance) teeth, this phenomenon occurs continuously and, therefore, at the exit of the pump provides a continuous excluded volume, pump every turn, the amount of discharge is the same. With the continuous rotation of the drive shaft, the pump will discharge fluid continuously. Pump flow and pump speed directly related. Hydraulic motor to fluid pressure energy is converted to mechanical energy, and in principle, the hydraulic pump can be used for the hydraulic motor hydraulic pump, hydraulic motor can also be used as a hydraulic pump. But in fact the same type of pump and the hydraulic motor, although similar in structure, but because of the two different operating conditions, so that there are some differences in both structure. Hydraulic pump (domestic maintenance), hydraulic pumps, hydraulic pressure from Jinan Jing Jing Chong Chong Hydraulic Machinery Co., Ltd. offers. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) strong, credible, in Jinan, Shandong mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement to create innovative ideas will lead crystal hydraulic and you hand into the brilliant, for a better future!