JPS58102723U - Engine direct injection combustion chamber - Google Patents
Engine direct injection combustion chamberInfo
- Publication number
- JPS58102723U JPS58102723U JP19830681U JP19830681U JPS58102723U JP S58102723 U JPS58102723 U JP S58102723U JP 19830681 U JP19830681 U JP 19830681U JP 19830681 U JP19830681 U JP 19830681U JP S58102723 U JPS58102723 U JP S58102723U
- Authority
- JP
- Japan
- Prior art keywords
- combustion chamber
- concave
- direct injection
- circular
- engine
- 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.)
- Pending
Links
Landscapes
- 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
図面は本考案の実施例を示すもので、第１図は直接噴射
式ディーゼルエンジンの燃焼室の縦断面図、第２図はピ
ストンの平面図、第３図及び第４図は各々本考案の他の
実施例を示すピストンの平面図である。
１・・・・・・エンジン、２・・・・・・直接噴射式燃
焼室、３・・・・・・燃焼室の端面、４・・・・・・キ
ャビティ、５・・・・・・キ′ヤビテイ周面、６・・・
・・・基本円形周面、７・・・・・・凹面、８・・・・
・・曲角、９・・・・・・凹面中央部、１０・・・・・
・燃料の 、当たる周面部分、１１・・・・・・燃料噴
射ノズル、１２・・・・・・ノズルの噴口、Ａ・・・・
・・スワール。The drawings show an embodiment of the present invention; Fig. 1 is a longitudinal sectional view of the combustion chamber of a direct injection diesel engine, Fig. 2 is a plan view of the piston, and Figs. 3 and 4 are examples of the present invention. FIG. 7 is a plan view of a piston showing another embodiment. DESCRIPTION OF SYMBOLS 1...Engine, 2...Direct injection combustion chamber, 3...End face of combustion chamber, 4...Cavity, 5... Cavity circumferential surface, 6...
・・・Basic circular circumferential surface, 7... Concave surface, 8...
...Curved corner, 9...Central part of concave surface, 10...
・Surrounding surface area where fuel comes into contact, 11...Fuel injection nozzle, 12...Nozzle spout, A...
...Swirl.
Claims (1)
ティ４を形成し、キャビティ４の周面５の基本形状を円
形にし、この基体円形周面６の周方向の適当間隔置きの
複数箇所に外方に突出する凹面７を形成し、この凹面７
の両端を基本円形周面６に曲角８ができる形に接続し、
凹面ンのうちの中央部９よりもスワールＡの風上側の面
部分１０に燃料が吹当る方向に燃料噴射ノズル１１の噴
口１２を方向付けた事を特徴とするエンジンの直接噴射
式燃焼室。 ２ 実用新案登録請求の範囲第１項に記載の燃焼室にお
いて、前記凹面７が凹曲面であるもの。 ３ 実用新案登録請求の範囲第１項に記載の燃焼室にお
いて、前記凹面７が台形状凹面であるもの。[Claims for Utility Model Registration] 1. A cavity 4 is formed in the end surface 3 of the direct injection combustion chamber 2 of the engine 1, and the basic shape of the circumferential surface 5 of the cavity 4 is circular, and the circumferential direction of the circular circumferential surface 6 of the base body is circular. Concave surfaces 7 protruding outward are formed at multiple locations at appropriate intervals, and the concave surfaces 7
Connect both ends to the basic circular circumferential surface 6 to form a curved angle 8,
This direct injection type combustion chamber for an engine is characterized in that a nozzle 12 of a fuel injection nozzle 11 is oriented in a direction in which fuel is blown onto a surface part 10 on the windward side of a swirl A rather than a central part 9 of a concave surface. 2. The combustion chamber according to claim 1 of the utility model registration claim, wherein the concave surface 7 is a concave curved surface. 3. The combustion chamber according to claim 1, wherein the concave surface 7 is a trapezoidal concave surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19830681U JPS58102723U (en) | 1981-12-28 | 1981-12-28 | Engine direct injection combustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19830681U JPS58102723U (en) | 1981-12-28 | 1981-12-28 | Engine direct injection combustion chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58102723U true JPS58102723U (en) | 1983-07-13 |
Family
ID=30111499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19830681U Pending JPS58102723U (en) | 1981-12-28 | 1981-12-28 | Engine direct injection combustion chamber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58102723U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61110835U (en) * | 1984-12-25 | 1986-07-14 | ||
| JP2006299885A (en) * | 2005-04-19 | 2006-11-02 | Yanmar Co Ltd | Direct spray type diesel engine |
-
1981
- 1981-12-28 JP JP19830681U patent/JPS58102723U/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61110835U (en) * | 1984-12-25 | 1986-07-14 | ||
| JP2006299885A (en) * | 2005-04-19 | 2006-11-02 | Yanmar Co Ltd | Direct spray type diesel engine |
| WO2006114946A1 (en) * | 2005-04-19 | 2006-11-02 | Yanmar Co., Ltd. | Direct injection diesel engine |
| EP1876332A1 (en) * | 2005-04-19 | 2008-01-09 | Yanmar Co., Ltd. | Direct injection diesel engine |
| EP1876332A4 (en) * | 2005-04-19 | 2009-06-17 | Yanmar Co Ltd | Direct injection diesel engine |
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