METHOD OF COAXIALLY CONNECTING PRECISION PARTS COMPRISING A PLURALITY OF MEMBERS, METHOD OF ASSEMBLING FUEL INJECTION NOZZLE, AND FUEL INJECTION NOZZLE

摘要

According to the present invention, a swirler and a plate are fitted into the inside diameter portion of a nozzle of a fuel injection valve so as to hold the swirler relative to a seat portion of the nozzle, centering between the seat portion of the nozzle and the inside diameter portion of the swirler by a positioning pin, and the plate is caused to plastic flow locally to connect and fix the nozzle, the swirler and the plate whereby maintaining the coaxial degree after connection of parts without influence of accuracy of an individual part of parts of the nozzle of the fuel injection valve.