JPS6361536U - - Google Patents
Info
- Publication number
- JPS6361536U JPS6361536U JP15654086U JP15654086U JPS6361536U JP S6361536 U JPS6361536 U JP S6361536U JP 15654086 U JP15654086 U JP 15654086U JP 15654086 U JP15654086 U JP 15654086U JP S6361536 U JPS6361536 U JP S6361536U
- Authority
- JP
- Japan
- Prior art keywords
- combustion chamber
- piston
- central axis
- similar
- recesses
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000000446 fuel Substances 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１図は本考案の第１実施例において発生する
スキツシユの態様を示した断面図（但しピストン
１０は第２図の―線に沿う断面で示されてい
る）、第２図は第１図のピストン１０を抽出して
示した平面図、第３図は上記実施例において発生
する逆スキツシユの態様を示した第１図同様の断
面図、第４図及び第５図は夫々本考案の第２及び
第３実施例を示す第２図同様のピストンの平面図
、第６図は従来のトロイダル燃焼室において発生
するスキツシユの態様を示した断面図、第７図は
従来のトロイダル燃焼室において発生する逆スキ
ツシユの態様を示した断面図である。
１０…ピストン、１２…クランクケース、１４
…シリンダ、１６…燃焼室、１６ａ…燃焼室周壁
、１６ｂ…隆起、１６ｃ…燃焼室底面、１８…シ
リンダヘツド、２０…燃料噴射ノズル、２６…窪
み。
FIG. 1 is a sectional view showing the manner in which squishing occurs in the first embodiment of the present invention (however, the piston 10 is shown in a cross section along the line - - in FIG. 2), and FIG. FIG. 3 is a cross-sectional view similar to FIG. 1 showing the aspect of reverse squishing that occurs in the above embodiment, and FIGS. Fig. 2 is a plan view of a similar piston showing the second and third embodiments; Fig. 6 is a cross-sectional view showing the manner in which squish occurs in a conventional toroidal combustion chamber; Fig. 7 shows a situation in which squish occurs in a conventional toroidal combustion chamber. FIG. 10...Piston, 12...Crankcase, 14
... Cylinder, 16... Combustion chamber, 16a... Combustion chamber peripheral wall, 16b... Protuberance, 16c... Combustion chamber bottom surface, 18... Cylinder head, 20... Fuel injection nozzle, 26... Recess.
Claims (1)
円錐又は類似形状の隆起を具えたトロイダル燃焼
室の周壁に、半径方向外方に拡大した複数の円弧
状外郭を有する窪みが設けられ、上記窪みは夫々
燃焼室の中心軸線から離隔した中心軸線を有し、
かつピストン頂面付近及び上記隆起と等高もしく
はそれより若干高い燃焼室底面隣接部分を除いた
燃焼室周壁上に設けられていることを特徴とする
直接噴射式デイゼルエンジンの燃焼室構造。 A circumferential wall of a toroidal combustion chamber, which is recessed in the top of the piston and has a conical or similar-shaped protuberance at the center of its bottom surface, is provided with a plurality of recesses each having a circular arc-shaped outer contour that expands outward in the radial direction; each have a central axis spaced apart from the central axis of the combustion chamber;
A combustion chamber structure for a direct injection diesel engine, characterized in that the structure is provided on the peripheral wall of the combustion chamber except for the vicinity of the top surface of the piston and the adjacent portion of the bottom surface of the combustion chamber that is at the same height as or slightly higher than the above-mentioned bulge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15654086U JPS6361536U (en) | 1986-10-13 | 1986-10-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15654086U JPS6361536U (en) | 1986-10-13 | 1986-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6361536U true JPS6361536U (en) | 1988-04-23 |
Family
ID=31078251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15654086U Pending JPS6361536U (en) | 1986-10-13 | 1986-10-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6361536U (en) |
-
1986
- 1986-10-13 JP JP15654086U patent/JPS6361536U/ja active Pending