AIGUILLE DE SOUPAPE POUR UNE SOUPAPE D'INJECTION DE FLUIDE, SOUPAPE D'INJECTION DE FLUIDE ET PROCÉDÉ DE FABRICATION D'UNE AIGUILLE DE SOUPAPE

摘要

The present disclosure relates to fluid injection valves. Embodiments of the teachings thereof may include a valve needle for a fluid injection valve and a fluid injection valve. For example, a valve needle for a fluid injection valve may include: a needle shaft; and a sealing ball welded to a tip of the needle shaft. The welded joint between the sealing ball and the needle shaft comprises at least two separate weld seams extending along a perimeter of the valve needle in the form of c-shaped arcs.