JPS639419U - - Google Patents

Description

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

第１図はこの考案に係る副室式デイーゼル機関
の第１実施例を示す断面図、第２図は第１図Ａ―
Ａ線矢視図、第３図は第２実施例のピストン上部
を示す正面図、第４図は第３図のＢ―Ｂ線矢視図
、第５図は第３実施例のピストン上部を示す正面
図、第６図は第５図のＣ―Ｃ線矢視図、第７図は
第４実施例を示す断面図、第８図は上記実施例と
従来の主燃焼室内の燃焼圧力波を比較して示す特
性図、第９図は従来の副室式デイーゼル機関を示
す断面図である。 ２……シリンダヘツド、２ａ……下面、３……
ピストン、３ａ……頂面、４……主燃焼室、５…
…渦流室、６……噴口、１１……凸部、１１ａ…
…上面、１２……絞り部、ｘ……軸線方向。 Fig. 1 is a sectional view showing the first embodiment of the pre-chamber type diesel engine according to this invention, and Fig. 2 is Fig. 1A-
FIG. 3 is a front view showing the upper part of the piston of the second embodiment, FIG. 4 is a view taken along the line B--B in FIG. 3, and FIG. 5 shows the upper part of the piston of the third embodiment. 6 is a view taken along line C--C in FIG. 5, FIG. 7 is a sectional view showing the fourth embodiment, and FIG. 8 is a combustion pressure wave in the main combustion chamber of the above embodiment and the conventional main combustion chamber. FIG. 9 is a sectional view showing a conventional pre-chamber type diesel engine. 2...Cylinder head, 2a...Bottom surface, 3...
Piston, 3a...Top surface, 4...Main combustion chamber, 5...
... Vortex chamber, 6... Nozzle, 11... Convex portion, 11a...
...Top surface, 12...Aperture section, x...Axis direction.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] シリンダヘツド下面とピストン頂面との間に形
成された主燃焼室とシリンダヘツド内部に形成さ
れた副室とを噴口を介して連通してなる副室式デ
イーゼル機関において、上記ピストン頂面に、ク
ランク軸の軸線方向に沿つて凸部を形成したこと
を特徴とする副室式デイーゼル機関。 In an auxiliary chamber type diesel engine in which a main combustion chamber formed between the lower surface of the cylinder head and the top surface of the piston and an auxiliary chamber formed inside the cylinder head are communicated via a nozzle, the piston top surface has a A pre-chamber type diesel engine characterized by a convex portion formed along the axial direction of the crankshaft.