To decrease variation in injection properties or seat ability among individual injectors 1 and to suppress difference in the injection properties even in the same individual injector 1 in the injector opening/closing an outlet 16 by a flat surface 32 while holding a spherical valve element 27 rotatably.
The spherical valve element 27 is pressed in a storage space 33 from below and held rotatably by this injector 1. When a valve element holding structure is constructed by press fitting of the spherical valve element 27 in this way, variation in a valve element holding parameter is decreased compared to that in a valve element holding structure with caulking work. Thus, the variation in the injection properties or seat ability among the individual injectors 1 can be decreased, and moreover, the difference in the injection properties even in the same individual injector 1 can be suppressed.
TAKEUCHI HISAHARU
ADACHI HISAFUMI
