JPS6321766U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案による燃料噴射弁の先端部を示
す部分断面図（第２図のＡ−Ａ断面図）、第２図
は第１図の−断面図、第３図は本考案による
他の実施例の部分断面図（第４図のＡ′−Ａ′断
面図）、第４図は第３図の−断面図、第５図
は噴口が３個の場合の配置の平面図、第６図は噴
口が４個の場合の配置の平面図、第７図はピント
ル型燃料噴射弁の先端部の部分断面図を示す。 １，１０……ニードル弁、２，２０……弁座、
３……噴口アダプタ、５……弁座孔、６，６′，
６″……燃料噴射口、７……圧力調整室、８，８
′，８″……噴口枠中央部分。 Fig. 1 is a partial sectional view (A-A sectional view in Fig. 2) showing the tip of the fuel injector according to the present invention, Fig. 2 is a - sectional view taken from Fig. 1, and Fig. 3 is a partial sectional view showing the tip of the fuel injector according to the present invention. (A'-A' sectional view in Fig. 4), Fig. 4 is a - sectional view in Fig. 3, Fig. 5 is a plan view of the arrangement when there are three nozzles, FIG. 6 is a plan view of the arrangement when there are four injection ports, and FIG. 7 is a partial sectional view of the tip of the pintle-type fuel injection valve. 1, 10... needle valve, 2, 20... valve seat,
3... Nozzle adapter, 5... Valve seat hole, 6, 6',
6″...Fuel injection port, 7...Pressure adjustment chamber, 8,8
', 8''...Central part of the nozzle frame.

Claims (1)

【実用新案登録請求の範囲】 ニードル弁と弁座と噴射口とを具備した内燃機
関のホール型燃料噴射弁において、 前記噴射口を３個備え、該３個の噴射口を、そ
れぞれの噴射口の中心が１つの正三角形の各頂点
に位置するように配置し、かつ、該正三角形の中
心を通る垂線が前記ニードル弁の軸線とほゞ一致
するように配設されていることを特徴とするホー
ル型燃料噴射弁。[Scope of Claim for Utility Model Registration] A hole-type fuel injection valve for an internal combustion engine, which is equipped with a needle valve, a valve seat, and an injection port, including three injection ports, and each of the three injection ports The needle valve is arranged so that its center is located at each vertex of an equilateral triangle, and the perpendicular line passing through the center of the equilateral triangle substantially coincides with the axis of the needle valve. Hall-type fuel injection valve.