Hydraulic transmission of hydraulic pumps and motors are relying on the work product of the volume change and work. So, to say the pump can be used as a motor, the motor can be used for pump. In fact, not the same working conditions as a result of both, in order to better play to their performance, there is a difference (domestic) pump refinement in the structure, it is not universal. Hydraulic pumps and motors working principle is reversible (domestic) pump repair phone, theoretically have the same input and output mathematical relationship; gear pump concept works is very simple (domestic) pump agency, that it's the most The basic form is the same size as the two gears in a close-fitting mutual engagement of the rotary pump housing, the interior of the housing similar to "8" shape, the two gears mounted on the inside, and both sides of the outer diameter of the gear housing tight fit. Material from the extruder at inlet into the two intermediate gears, and this space is filled, with the rotational movement of the housing along the teeth, and finally discharged at the time of the two toothing. (Domestic) hydraulic sales, hydraulic pumps, hydraulic pressure from Jinan Jing Jing Chong Chong Hydraulic Machinery Limited. 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!