I-Denso valve orifice plate ye-YS inokusombulula ingxaki yempembelelo eqinile ngexesha lenkqubo yokuvala, ukunciphisa uxinzelelo lwempembelelo eguquguqukayo, ukunciphisa ukungcangcazela, ukwandisa ubomi bepleyiti ye-valve orifice, ngaloo ndlela iphucula ubomi be-injector.