JET VALVE FLOW-CONTROL MECHANISM

When jet valve nozzle 1 is diverted to the left, the fluid delivered to the nozzle flows through left channel a to the upper end of servomotor 3, shifting piston 4 downward. Fluid forced out of the lower end of servomotor 3 flows through passage 5 and lifts ball b (up to shackle e). This opens two orifices, c and d, for the fluid. When jet valve nozzle 1 is diverted to the right, the fluid flows t…