VALVE NEEDLE FOR A FLUID INJECTION VALVE, FLUID INJECTION VALVE AND METHOD FOR MANUFACTURING A VALVE NEEDLE

摘要

Valve needle for a fluid injection valve, fluid injection valve and method for manufacturing a valve needle Valve needle (20) for a fluid injection valve (10) is disclosed. It comprises a needle shaft (13) and a sealing ball (15) welded to a tip (17) of the needle shaft (13). The welded joint (19) between the sealing ball (15) and the needle shaft (13) comprises at least two separate weld seams (72, 74), which extend along the perimeter of the valve needle (20) in the form of a c-shaped arc. Further, a fluid injection valve and a method for manufacturing the valve needle are disclosed.