METHOD FOR MANUFACTURING MODULAR FUEL INJECTOR

摘要

PROBLEM TO BE SOLVED: To enable a valve group and a coil group to be independently assembled and tested by making a fuel injector a module structure. SOLUTION: A method of manufacturing a fuel injector comprises providing a clean room, fabricating a fuel tube assembly, an armature assembly and a seat assembly in the clean room, assembling a fuel group by performing the following processes in the order: inserting an adjusting tube into the fuel tube assembly; inserting a biasing element into the fuel assembly; also inserting the armature assembly into the fuel assembly; and connecting the seat assembly to the fuel tube assembly, and then inserting the fuel group into a power group outside the clean room.