Design and analysis of load-sensitive valve in load-sensible variable displacement pump

A new approach to designing of the loadsensitive valve in variable displacement pump with(electro)-hydraulic proportional load-sensibility was put forward.And the structure of this valve was designed,the parameters calculated and the characteristics analyzed.The system was simulated with MATLAB and MATLAB/Simulink.Theoretical analysis and computer simulation shows that the structure of the valve is reasonable,the dynamic response is quick,and its action is stable and reliable.