Patent ID: 9429128
Filing Date: 2016-08-30
CPC Classification: F02M

Claim Text:
1. A method for adjusting an amount of stroke of a movable member of a fuel injection valve including a nozzle member having a seat face, a nozzle holder member to which the nozzle member is joined by welding, and the movable member having a valve seat portion for coming in contact with the seat face, the method comprising applying a load to the nozzle member in a valve axial direction as a first stroke adjustment before joining the nozzle member and the nozzle holder member by welding; joining the nozzle member and the nozzle holder member by welding; and plastically deforming a deformable portion provided to the nozzle holder member as a second stroke adjustment after joining the nozzle member and the nozzle holder member by welding, wherein the deformable portion is provided between a load applied portion of the fuel injection valve where a load for plastically deforming the deformable portion is applied and a supported portion of the fuel injection valve to be supported to receive the load and the deformable portion has lower rigidity in a valve axial direction against the load than the other portion between the load applied portion and the supported portion.