Injection nozzle for diesel engine with variable injection hole

摘要

The present invention relates to an injection nozzle for a diesel engine having a variable injection hole, in particular an injection nozzle composed of a multi-stage cylindrical body, the injection nozzle is integrally formed in the lower portion of the body,;On the main surface of the injection hole at the bottom of the body, the small diameter idling injection hole and the large diameter acceleration injection hole are drilled up and down, but are formed diagonally with each other,;The guide groove on the outer circumferential surface of the sliding portion of the needle valve upper portion inclined downward, the opening and closing wings of the lower portion is configured to be equal to the number of the idle idle injection hole and the acceleration injection hole, the guide pin of the needle valve and the guide groove of the needle valve It relates to an injection nozzle for a diesel engine having a variable injection hole characterized in that the locking and coupling.