JPS646323U - - Google Patents
Info
- Publication number
- JPS646323U JPS646323U JP9950787U JP9950787U JPS646323U JP S646323 U JPS646323 U JP S646323U JP 9950787 U JP9950787 U JP 9950787U JP 9950787 U JP9950787 U JP 9950787U JP S646323 U JPS646323 U JP S646323U
- Authority
- JP
- Japan
- Prior art keywords
- combustion chamber
- diesel engine
- direct
- main combustion
- protrusion
- 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
Links
- 238000002485 combustion reaction Methods 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 3
Description
第１図は、本考案に係る直噴式デイーゼルエン
ジンの燃焼室の一実施例を示した縦断面図、第２
図はその平面図、第３図および第４図はその作用
を示した縦断面図、第５図は従来の直噴式デイー
ゼルエンジンの燃焼室を示した縦断面図、第６図
は従来の予燃焼室式デイーゼルエンジンの燃焼室
を示した縦断面図である。
図中、２はピストン頂部、３は主燃焼室、４は
突起部、５は予燃焼室、６は連絡孔、９は燃料噴
射ノズルである。
FIG. 1 is a vertical sectional view showing one embodiment of the combustion chamber of a direct injection diesel engine according to the present invention, and FIG.
The figure is a plan view, Figures 3 and 4 are longitudinal cross-sectional views showing its operation, Figure 5 is a vertical cross-sectional view showing the combustion chamber of a conventional direct injection diesel engine, and Figure 6 is a conventional diesel engine. FIG. 2 is a longitudinal sectional view showing a combustion chamber of a combustion chamber type diesel engine. In the figure, 2 is a piston top, 3 is a main combustion chamber, 4 is a protrusion, 5 is a pre-combustion chamber, 6 is a communication hole, and 9 is a fuel injection nozzle.
Claims (1)
の略中央に突起部を設け、該突起部に燃料噴射ノ
ズルに臨む予燃焼室を形成し、該燃焼室と上記主
燃焼室との間に、高速運転時の上記燃料噴射ノズ
ルの噴射方向に一致させて、連絡孔を設けたこと
を特徴とする直噴式デイーゼルエンジンの燃焼室
。 (2) 上記予燃焼室が、略球形に成形された上記
実用新案登録請求の範囲第１項に記載の直噴式デ
イーゼルエンジンの燃焼室。 (3) 上記連絡孔が、上記予燃焼室から径方向外
方の主燃焼室に臨んで放射状に形成された上記実
用新案登録請求の範囲第１項または第２項に記載
の直噴式デイーゼルエンジンの燃焼室。[Claims for Utility Model Registration] (1) A protrusion is provided approximately at the center of the main combustion chamber formed by recessing the top of the piston, a pre-combustion chamber facing the fuel injection nozzle is formed in the protrusion, and the combustion chamber is A combustion chamber for a direct-injection diesel engine, characterized in that a communication hole is provided between the main combustion chamber and the main combustion chamber so as to correspond to the injection direction of the fuel injection nozzle during high-speed operation. (2) The combustion chamber of the direct injection diesel engine according to claim 1, wherein the pre-combustion chamber is formed into a substantially spherical shape. (3) The direct-injection diesel engine according to claim 1 or 2, wherein the communication hole is formed radially from the pre-combustion chamber toward the main combustion chamber radially outward. combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9950787U JPH0634583Y2 (en) | 1987-06-30 | 1987-06-30 | Combustion chamber of direct injection diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9950787U JPH0634583Y2 (en) | 1987-06-30 | 1987-06-30 | Combustion chamber of direct injection diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS646323U true JPS646323U (en) | 1989-01-13 |
| JPH0634583Y2 JPH0634583Y2 (en) | 1994-09-07 |
Family
ID=31326729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9950787U Expired - Lifetime JPH0634583Y2 (en) | 1987-06-30 | 1987-06-30 | Combustion chamber of direct injection diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634583Y2 (en) |
-
1987
- 1987-06-30 JP JP9950787U patent/JPH0634583Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0634583Y2 (en) | 1994-09-07 |
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