Variable pump biggest problem is heat, variable pump sales, the main work system design is to find ways to reduce the fever. Convenience variable pump operation, you can reduce emissions in accordance with operating conditions, thereby reducing engine power, refinement variable pump, reduce heat fixed displacement motor advantage is cheap, because the work of a wide range of motor, can adapt to changes in flow, so that the system simply furnished, the motor speed needs to be adjusted, the direct change pump displacement, gradually approaching the desired speed. particularly large systems (TBM), the motor also needs the variable, because the load of rapid change. speed control requires accurate, then only control motor .. motor feedback signal to the pump, motor pump with variable. to further improve system, reduce heat hydraulic system circuit is reasonable or not significant impact on the energy-saving design of hydraulic engineering machinery. For example, repair variable pump, the governor circuit design, avoid the throttle setting at inlet end of the hydraulic system (meter-speed). This will make the system temperature rise, a sharp decline in efficiency, or even failure. In the absence of specific requirements, variable pump, generally used in the variable displacement pump - fixed displacement motor, dosing pumps - variable motor or variable pump - variable displacement motor speed control circuit, etc., because the characteristics of this circuit is that the temperature rise, high efficiency. Volvo's loader hydraulic system uses a load-sensing variable displacement pump, it can change with different loads and output power, the hydraulic system to avoid the waste of energy. Variable pump, hydraulic preferred crystal Chong, repairs variable pump from Jinan Jing Chong Hydraulic Machinery Limited. Variable pump, hydraulic preferred crystal creating repair variable pump Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) this year introduced a new upgrade, the above picture is for reference only, please dial this page Phone or pictures on obtain the latest information, contact: Cui.