Hitachi-high-technologies Corporation

Sachio Satoh

Nobuo Suzuki

Hiroaki Sakai

Junichi Oizumi

Ichiro Sakai

An upper endof a nozzle tipis adapted to have an inside diameter dimension smaller than an outside diameter of a lower portion of a barrel, so that nozzle tipsare not piled up. An upper curved surface, which is curved in an outer direction of the nozzle tipstarting with a boundary portion between the barreland a leading end openingof the nozzle tipand the leading end opening, is formed. A lower curved surfaceis formed continuously from the upper curved surfaceto be curved in an inner direction. An angle formed between a line tangent to a boundary portionbetween the upper curved surfaceand the lower curved surfaceand a center axis of the nozzle tipis adapted to fall within a range between 45&#xb0; and 20&#xb0;.

Growing community of inventors

Hitachinaka, Japan

Sachio Satoh