SPRING SLEEVE FOR FUEL INJECTOR

摘要

The invention relates to a fuel injector (10) with a holding body (12) and a nozzle body (14) which are joined together and accommodate a coupler module (18) of which the coupler body (22) is enclosed by a spring sleeve (26). The spring sleeve (26) is open (58) in the direction of the circumference (62). Either the wall thickness (84) of the spring sleeve (26) varies in the longitudinal direction (60), or a width (94) of at least one recess shape (68, 70) in the sheathing of the spring sleeve (26) varies according to the longitudinal direction (60).