Research on Fluid Characteristics of Jet Pipe Electro-hydraulic Servo-valve Based on Structural Parameters

In this paper, the steady-state analysis of a jet pipe electro-hydraulic servo-vale has been made to simulate its operation by mathematical model. With the fluid dynamics of the jet pipe, working process of jet pipe electro-hydraulic servo-valve is analyzed. To find the great influences of structural parameters of jet pipe electro-hydraulic servo-valve on the characteristics of flow field is key research, and to obtain equations in relation between the boundary conditions and the outlet values. Besides the suitable selection of the structural parameters, the size of receiver holes or the gap size between receiver holes and the jet pipe nozzle at the first stage of jet pipe electro-hydraulic servo-valve is taken.