Servo-valve and fluidic device

A servo-valve that controls a fluid discharged from a discharge port of a nozzle by displacing the nozzle and drives an actuator, servo-valve comprising:

• a receiver that includes an inflow surface provided with a first inflow port and a second inflow port into which the fluid discharged from the discharge port flows,
• wherein the nozzle includes a force generation portion that includes an end surface provided with the discharge port and an outer circumferential surface formed in the periphery of the end surface,
• wherein when the nozzle is displaced from a neutral position in which an extended line extended from a center of the discharge port intersects the inflow surface between the first inflow port and the second inflow port toward a position in which the extended line intersects the first inflow port, the fluid inside the second inflow port is blown out toward the nozzle, and
• wherein the force generation portion collides with the fluid blown out from the second inflow port and causes an assisting force in a direction matching the nozzle displacement direction.