JPS5968128U - Combustion chamber structure of direct injection diesel engine - Google Patents

Combustion chamber structure of direct injection diesel engine

Info

Publication number
JPS5968128U
JPS5968128U JP16327782U JP16327782U JPS5968128U JP S5968128 U JPS5968128 U JP S5968128U JP 16327782 U JP16327782 U JP 16327782U JP 16327782 U JP16327782 U JP 16327782U JP S5968128 U JPS5968128 U JP S5968128U
Authority
JP
Japan
Prior art keywords
combustion chamber
diesel engine
direct injection
section
lip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP16327782U
Other languages
Japanese (ja)
Other versions
JPS6332910Y2 (en
Inventor
知明 伊藤
Original Assignee
いすゞ自動車株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Priority to JP16327782U priority Critical patent/JPS5968128U/en
Publication of JPS5968128U publication Critical patent/JPS5968128U/en
Application granted granted Critical
Publication of JPS6332910Y2 publication Critical patent/JPS6332910Y2/ja
Granted legal-status Critical Current

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  • Combustion Methods Of Internal-Combustion Engines (AREA)

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図は直接噴射式ディーゼル機関を示す側断面図、第
２図は開口縁部全周にリップを形成した従来の燃焼室を
示す側断面図、第３図は従来の大型燃焼室を示す平面図
、第４図は従来の角型燃焼室を示す平面図、第５図は本
考案の好適一実施例を示す平面図、第６図は第５図にお
けるＶＩ−ＶＩ線　　゛矢視断面図、第７図は第５図に
おける■−■線矢視断面図、第８図は本考案の燃焼室と
従来の燃焼室とにおけるＰｍｅ、　ＮＯｘ、スモークの
各測定値を示すグラフ、第９図、第１０図及び第１１図
は変形実施例を示す平面図である。 図中、３はシリンダヘッド、４は燃料噴射ノズル、４ａ
はその噴口、５はピストンヘッド、１４は燃焼室、１４
Ｃはその開口縁部、１５はリップである。Figure 1 is a side sectional view showing a direct injection diesel engine, Figure 2 is a side sectional view showing a conventional combustion chamber with a lip formed around the opening edge, and Figure 3 is a side sectional view showing a conventional large combustion chamber. 4 is a plan view showing a conventional square combustion chamber, FIG. 5 is a plan view showing a preferred embodiment of the present invention, and FIG. 6 is a cross section taken along line VI-VI in FIG. Figure 7 is a sectional view taken along the line ■-■ in Figure 5, Figure 8 is a graph showing the measured values of Pme, NOx, and smoke in the combustion chamber of the present invention and the conventional combustion chamber. 10 and 11 are plan views showing modified embodiments. In the figure, 3 is the cylinder head, 4 is the fuel injection nozzle, 4a
is its nozzle, 5 is the piston head, 14 is the combustion chamber, 14
C is the opening edge, and 15 is the lip.

Claims (1)

【実用新案登録請求の範囲】 １　シリンダヘッドに臨むピストンヘッドを陥没させて
形成され、燃料噴射ノズルから噴射される燃料と圧縮さ
れてスワールを生ずる吸気とを混合気化させて燃焼させ
るための直接噴射式ディーゼル機関の燃焼室において、
上記燃焼室の開口断面を、角形断面と丸形断面とを組み
合わせて区画形成し、該燃焼室の上記燃料噴射ノズルの
噴口に臨む開口縁部に沿って所定間隔に径方向内方へ突
出したリップを形成して、該リップにより上記混合気の
一部を上記燃焼室内に閉じ込めて燃焼させると共に、上
記リップ間から混合気の他の一部を上記シリンダヘッド
側に流出させて燃焼させるように構成したことを特徴と
する直接噴射式ディーゼル機関の燃焼室構造。 ２　上記リップが、丸形断面で区画された上記燃焼室の
開口縁部に沿って形成された前記実用新案登録請求の範
囲第１項記載の直接噴射式ディーゼル機関の燃焼室構造
。− ３上記リップが、角形断面で区画形成された上記燃焼室
の開口縁部に沿って形成された前記実用新案登録請求の
範囲第１項記載の直接噴射式ディーゼル機関の燃焼室構
造。[Claims for Utility Model Registration] 1 Direct injection formed by recessing the piston head facing the cylinder head, for combusting the mixture of fuel injected from a fuel injection nozzle and intake air that is compressed to produce a swirl. In the combustion chamber of a diesel engine,
The opening cross section of the combustion chamber is formed into sections by combining a square cross section and a round cross section, and protrudes radially inward at predetermined intervals along the opening edge of the combustion chamber facing the injection port of the fuel injection nozzle. A lip is formed so that a part of the air-fuel mixture is confined within the combustion chamber and combusted by the lip, and another part of the air-fuel mixture flows out from between the lips to the cylinder head side and is combusted. A combustion chamber structure of a direct injection diesel engine characterized by the following structure. 2. The combustion chamber structure for a direct injection diesel engine according to claim 1, wherein the lip is formed along an opening edge of the combustion chamber defined by a round cross section. -3 The combustion chamber structure for a direct injection diesel engine according to claim 1, wherein the lip is formed along an opening edge of the combustion chamber defined by a rectangular cross section.
JP16327782U 1982-10-29 1982-10-29 Combustion chamber structure of direct injection diesel engine Granted JPS5968128U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16327782U JPS5968128U (en) 1982-10-29 1982-10-29 Combustion chamber structure of direct injection diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16327782U JPS5968128U (en) 1982-10-29 1982-10-29 Combustion chamber structure of direct injection diesel engine

Publications (2)

Publication Number Publication Date
JPS5968128U true JPS5968128U (en) 1984-05-09
JPS6332910Y2 JPS6332910Y2 (en) 1988-09-02

Family

ID=30358315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16327782U Granted JPS5968128U (en) 1982-10-29 1982-10-29 Combustion chamber structure of direct injection diesel engine

Country Status (1)

Country Link
JP (1) JPS5968128U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6275019A (en) * 1985-09-27 1987-04-06 Mitsubishi Heavy Ind Ltd Combustion device for diesel engine
JPS6394020A (en) * 1986-10-09 1988-04-25 Isuzu Motors Ltd Combustion chamber structure for direct injection type diesel engine
JP2007518924A (en) * 2004-01-24 2007-07-12 マーレ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Combustion dents in the piston head for diesel engines

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5629018A (en) * 1979-08-16 1981-03-23 Kubota Ltd Direct injection type combustion chamber for diesel engine
JPS5712013A (en) * 1980-06-25 1982-01-21 Nippon Oil Co Ltd Polymerization of conjugated diolefin

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5629018A (en) * 1979-08-16 1981-03-23 Kubota Ltd Direct injection type combustion chamber for diesel engine
JPS5712013A (en) * 1980-06-25 1982-01-21 Nippon Oil Co Ltd Polymerization of conjugated diolefin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6275019A (en) * 1985-09-27 1987-04-06 Mitsubishi Heavy Ind Ltd Combustion device for diesel engine
JPS6394020A (en) * 1986-10-09 1988-04-25 Isuzu Motors Ltd Combustion chamber structure for direct injection type diesel engine
JP2007518924A (en) * 2004-01-24 2007-07-12 マーレ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Combustion dents in the piston head for diesel engines

Also Published As

Publication number Publication date
JPS6332910Y2 (en) 1988-09-02

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