JPS60100528U - Piston for direct injection diesel engine - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

、　　第１図は従来の燃焼室構造を備えたピストンおよ
びその周辺の断面図、第２−は第１図のピストンの平面
図、第３図はこの考案の実施例による第１図と略同様な
断面図、第４図は第３図のピストンの平面図。 （図面の主要な部分を表わす符号の説明）、３・・・・
・・ピストン、５・・・・・・燃焼室、７・・・・・・
閉塞部材、１３・・・・・・シリンダ室、１５・・・・
・・燃料噴射通路、１７・・・・・・燃料噴射ノズル。, Figure 1 is a sectional view of a piston with a conventional combustion chamber structure and its surroundings, Figure 2- is a plan view of the piston in Figure 1, and Figure 3 is approximately the same as Figure 1 according to an embodiment of this invention. FIG. 4 is a plan view of the piston shown in FIG. 3. (Explanation of symbols representing main parts of the drawing), 3...
...Piston, 5...Combustion chamber, 7...
Closing member, 13...Cylinder chamber, 15...
...Fuel injection passage, 17...Fuel injection nozzle.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ピストン頂部に穿設された燃焼室の開口部に、この開口
部を閉塞する閉塞部材を設け、前記燃焼室内に渦流を発
生させる方向に向い、なおかつ燃料噴射ノズルから噴射
される燃料の噴出方向と略平行に前記燃焼室とシリンダ
室とを連通ずる燃料噴射通路を前記閉塞部材に設けたこ
とを特徴とする直接噴射式ディーゼルエンジン用ピスト
ン。A closing member for closing the opening of the combustion chamber bored in the top of the piston is provided, and the closing member is oriented in a direction that generates a vortex flow in the combustion chamber, and that is oriented in the direction in which fuel is injected from the fuel injection nozzle. A piston for a direct injection type diesel engine, characterized in that the closing member is provided with a fuel injection passage that communicates the combustion chamber and the cylinder chamber substantially in parallel.