Machinery loss of mechanical loss refers to the loss of hydraulic torque. It is equal to pump large theoretical torque Tt and the actual input torque T ratio, set the torque loss of Tl, the mechanical efficiency of the hydraulic pump (2) hydraulic pump power 1) input power input power means acting hydraulic mechanical power on the pump shaft, when the input torque Ti, angular velocity ω = Tiω2) output power P means differential pressure Δp output power and output flow pump during operation of the actual suction pressure of the oil port between q product, namely P = Δpq (3) the overall efficiency of the overall efficiency of the hydraulic pump hydraulic pump is the actual output to its input power ratio corresponding to the displacement and speed. In most cases by the actual operating conditions to determine what motor hydraulic motor installation, and then the motor system according to the needs of the hydraulic motor parameters, select the appropriate pump, or assign the appropriate hydraulic system. In some cases, there may be several motor theoretically meet the current condition of the hydraulic motor parts, this time will be based on the existing hydraulic system of matching motor. If only the prime mover + pump + motor This simple hydraulic system, to consider the pump flow (displacement * rpm), hydraulic motor displacement and speed according to the system pressure and flow to the election. Connect the hydraulic motor repair, through the valve between the two, according to actual conditions choice, valve, balance valve, overload valve and the like ...... hydraulic motor hydraulic installation _ Crystal Chong (certified) _ hydraulic motor from Jinan Jing Chong Hydraulic Machinery Limited. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) Shandong Jinan, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In the crystal creating hydraulic leadership with the staff warmly welcome all inquiries negotiations to create the crystal creating hydraulic better future.