JPH01118123U - - Google Patents
Info
- Publication number
- JPH01118123U JPH01118123U JP1322988U JP1322988U JPH01118123U JP H01118123 U JPH01118123 U JP H01118123U JP 1322988 U JP1322988 U JP 1322988U JP 1322988 U JP1322988 U JP 1322988U JP H01118123 U JPH01118123 U JP H01118123U
- Authority
- JP
- Japan
- Prior art keywords
- combustion chamber
- swirl chamber
- large cavity
- piston
- side cavities
- 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 5
- 239000006185 dispersion Substances 0.000 claims description 3
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１図Ａは本考案の一実施例の要部縦断面図、
同図Ｂはそのピストンの平面図である。第２図Ａ
は本考案の他の実施例の要部縦断面図、同図Ｂは
そのピストンの平面図である。第３図Ａは従来例
の要部縦断面図、同図Ｂはそのピストンの平面図
である。
３…ピストン、４…シリンダヘツド、５…渦流
室、６…噴孔、８…ピストン頂面、９…主燃焼室
、１１…トレンチ部、１２，２０…大キヤビテイ
部、１３，２３…分散台、１４，２２…側方キヤ
ビテイ部、１７，１８…外殻、１８Ａ…ガイド部
、１９，２１…溝部。
FIG. 1A is a vertical cross-sectional view of a main part of an embodiment of the present invention;
Figure B is a plan view of the piston. Figure 2A
1 is a vertical cross-sectional view of a main part of another embodiment of the present invention, and FIG. 1B is a plan view of the piston. FIG. 3A is a vertical cross-sectional view of a main part of a conventional example, and FIG. 3B is a plan view of the piston. 3...Piston, 4...Cylinder head, 5...Swirl chamber, 6...Nozzle hole, 8...Piston top surface, 9...Main combustion chamber, 11...Trench section, 12, 20...Large cavity section, 13, 23...Dispersion table , 14, 22... Side cavity part, 17, 18... Outer shell, 18A... Guide part, 19, 21... Groove part.
Claims (1)
させた渦流室式デイーゼル機関の燃焼室を前提と
して、ピストン頂面に、その上方から見て渦流室
から主燃焼室への噴流の中心線上に位置するよう
に分散台を島状に隆起させるとともに、分散台を
挾んでピストン中心付近の領域から略円形に広が
る左右の大キヤビテイ部と、噴孔の下方にあたる
トレンチ部から分岐して各大キヤビテイ部に連通
する左右の側方キヤビテイ部とを形成し、この側
方キヤビテイ部を画成する外殻に、側方キヤビテ
イ部を通過する噴流を大キヤビテイ部に生起され
る旋回流に対して略接線方向から合流させるよう
に案内するガイド部を形成し、かつ大キヤビテイ
部を画成する底面に、円弧状に延びる溝部を形成
したことを特徴とする渦流室式デイーゼル機関の
燃焼室。 Assuming that the combustion chamber is a diesel engine with a swirl chamber in which the jet hole from the swirl chamber is opened near the edge of the main combustion chamber, the jet flow from the swirl chamber to the main combustion chamber is placed on the top surface of the piston when viewed from above. The dispersion table is raised in an island shape so as to be located on the center line, and large cavities on the left and right that spread approximately circularly from the region near the center of the piston sandwiching the dispersion table and branch from a trench section below the nozzle hole. Left and right side cavities communicating with each large cavity are formed, and the outer shell defining the side cavities is configured to convert the jet flow passing through the side cavities into a swirling flow generated in the large cavity. A combustion chamber of a swirl chamber type diesel engine characterized in that a guide portion is formed for guiding the two to merge from a substantially tangential direction, and a groove portion extending in an arc shape is formed on a bottom surface defining a large cavity portion. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1322988U JPH01118123U (en) | 1988-02-03 | 1988-02-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1322988U JPH01118123U (en) | 1988-02-03 | 1988-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01118123U true JPH01118123U (en) | 1989-08-09 |
Family
ID=31223357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1322988U Pending JPH01118123U (en) | 1988-02-03 | 1988-02-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01118123U (en) |
-
1988
- 1988-02-03 JP JP1322988U patent/JPH01118123U/ja active Pending
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