JPS58154825U

JPS58154825U - Cylinder fuel injection internal combustion engine

Info

Publication number: JPS58154825U
Application number: JP5291782U
Authority: JP
Inventors: 泰彦中川
Original assignee: 日産自動車株式会社
Priority date: 1982-04-12
Filing date: 1982-04-12
Publication date: 1983-10-17

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

[Brief explanation of drawings]

第１図は従来の筒内燃料噴射式内燃機関を示す正面断面
図、第２図は第１図で示した燃料噴射弁の正面断面図、
第３図は第１図で示された内燃機関の運転状況を示すグ
ラフ、第４図は第２図で示した燃料噴射弁に付着した炭
素を示すための拡大図、第５図はこの考案の一実施例を
示す正面断面図、第６図は第５図で示した燃料噴射弁の
正面断面図、第７図は第６図の■−■矢視断面図、第８
図は第６図で示した燃料噴射弁の先端部の拡大図、第９
図は第５図で示された内燃機関の運転状態を示すグラフ
、第１０図は第５図の弁付近の拡大図である。２４・・・シリンダブロック、２５・・・シリンダ孔、
２６・・・シリンダヘッド、２７・・・ピストン、２９
・・・燃焼室、３５・・・凹部、３７・・・燃料噴射弁
、４７・・・弁。第４図ＴＤＣＤＣＣ序刀FIG. 1 is a front sectional view showing a conventional in-cylinder fuel injection type internal combustion engine, FIG. 2 is a front sectional view of the fuel injection valve shown in FIG. 1,
Figure 3 is a graph showing the operating status of the internal combustion engine shown in Figure 1, Figure 4 is an enlarged view showing carbon adhering to the fuel injection valve shown in Figure 2, and Figure 5 is a graph showing this invention. FIG. 6 is a front sectional view of the fuel injection valve shown in FIG. 5, FIG.
The figure is an enlarged view of the tip of the fuel injection valve shown in Figure 6, and
This figure is a graph showing the operating state of the internal combustion engine shown in FIG. 5, and FIG. 10 is an enlarged view of the vicinity of the valve in FIG. 24... Cylinder block, 25... Cylinder hole,
26... Cylinder head, 27... Piston, 29
...Combustion chamber, 35...Recess, 37...Fuel injection valve, 47...Valve. Figure 4 TDC DC C introduction

Claims

[Scope of utility model registration request]

A cylinder block in which a cylinder hole is formed, a piston that is slidably housed in the cylinder hole, a cylinder head that closes the cylinder hole and defines a combustion chamber together with the piston and cylinder block, and fuel is injected into the combustion chamber. In a direct fuel injection internal combustion engine, the cylinder head is provided with a recess that opens into the combustion chamber, and the fuel injection valve is opened in the recess, and the recess and the combustion chamber are communicated with each other. An in-cylinder fuel injection type internal combustion engine characterized in that a recessed portion of a fuel injection valve communicates with a combustion chamber only when fuel is injected.