Optimization of cavitation phenomenon of deflector jet servo valve

In order to improve the cavitation phenomenon of deflector jet servo valve in the front stage, based on the principle of orthogonal experiment, a SIMULINK simulation model was established for the structural parameters of deflector jet servo valve, such as the thickness of jet disk, the length of guide tube, the height of wedge and the radius of receiving hole. The research results show that the cavitation phenomenon in the pre-stage of deflector jet servo valve can be weakened by appropriately reducing the height of wedge tip, the radius of receiving hole and the thickness of jet disk, and the cavitation phenomenon in the pre-stage can be enhanced by increasing the length of the deflector jet servo valve, providing a basis for improving the stability and reliability of deflector jet servo valve.