Nozzle and nozzle assembly for a servo valve

A nozzle assembly (N) for a servo valve, the nozzle assembly (N) comprising:

• a nozzle housing having a nozzle cavity defined by an inner circumferential cavity surface of the nozzle housing;
• a nozzle positioned in the nozzle cavity, wherein the nozzle comprises:
• an annular body defining an outer circumferential surface and an inner circumferential surface;
• a fluid outlet at a first axial end of the nozzle;
• a fluid inlet at an opposing, second axial end of the nozzle;
• a nozzle bore connecting the fluid outlet to the fluid inlet, wherein the nozzle bore is defined by the inner circumferential surface;
• and
• an annular groove disposed around a circumference of the annular body in the outer circumferential surface;
• an injection passage in fluid communication with the annular groove in the nozzle, wherein the nozzle housing further comprises an annular groove in the inner circumferential cavity surface, and the annular grooves in the nozzle and the nozzle housing are in fluid communication with each other;
• a setting material disposed in the annular grooves for fixing the nozzle in position within the nozzle housing, wherein the injection passage is for injecting the setting material in to the annular grooves;
• and
• at least one vent passage in fluid communication with the annular groove extending through the annular body between the inner and outer circumferential surfaces.