JPS63202728U - - Google Patents
Info
- Publication number
- JPS63202728U JPS63202728U JP9376387U JP9376387U JPS63202728U JP S63202728 U JPS63202728 U JP S63202728U JP 9376387 U JP9376387 U JP 9376387U JP 9376387 U JP9376387 U JP 9376387U JP S63202728 U JPS63202728 U JP S63202728U
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- guide recess
- recess
- diesel engine
- center
- 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 3
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 239000000779 smoke Substances 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１図乃至第３図は本考案の一実施例を示すも
ので、第１図はピストンの平面図、第２図はピス
トン上面の斜視図、第３図は第１図の−線に
おける縦断面図であり、第４図は従来の構造と本
考案とのスモークの発生量を比較したグラフ、第
５図は従来の副室式デイーゼルエンジンのピスト
ンの平面図である。
１……ピストン、１ａ……上面、２……略円形
リセス、３……ガイドリセス、４……補助ガイド
溝。
1 to 3 show an embodiment of the present invention, in which FIG. 1 is a plan view of the piston, FIG. 2 is a perspective view of the top surface of the piston, and FIG. 3 is a longitudinal section taken along the line - in FIG. 1. FIG. 4 is a graph comparing the amount of smoke generated between the conventional structure and the present invention, and FIG. 5 is a plan view of a piston of a conventional pre-chamber type diesel engine. DESCRIPTION OF SYMBOLS 1...Piston, 1a...Top surface, 2...Substantially circular recess, 3...Guide recess, 4...Auxiliary guide groove.
Claims (1)
面には副室噴孔部に対応する位置から主室中央方
向へ延びるガイドリセスと、該ガイドリセスと連
なりその両側に形成される略円形リセスとが刻設
されており該ガイドリセスの両側には副室噴孔部
に対応する位置より略円形リセス寄りの位置で接
続されピストン上面の中心方向に向かつてガイド
リセスに沿う方向に合流する補助ガイド溝が刻設
されたことを特徴とする副室式デイーゼルエンジ
ンの燃焼室構造。 (2) 補助ガイド溝はガイドリセスと隔壁によつ
て一部が区画されたことを特徴とする実用新案登
録請求の範囲第１項記載の副室式デイーゼルエン
ジンの燃焼室構造。[Claims for Utility Model Registration] (1) On the upper surface of the piston of a pre-chamber type diesel engine, there is a guide recess extending from a position corresponding to the pre-chamber nozzle hole toward the center of the main chamber, and a guide recess extending from a position corresponding to the pre-chamber injection hole toward the center of the main chamber, and a guide recess on both sides of the A substantially circular recess is formed on both sides of the guide recess, and the guide recess is connected at a position closer to the substantially circular recess than the position corresponding to the sub-chamber nozzle hole, and is connected to the guide recess toward the center of the upper surface of the piston. A combustion chamber structure of a pre-chamber type diesel engine characterized by having an auxiliary guide groove carved therein that merges in the direction along the combustion chamber. (2) The combustion chamber structure of a pre-chamber type diesel engine according to claim 1, wherein the auxiliary guide groove is partially partitioned by a guide recess and a partition wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987093763U JPH089376Y2 (en) | 1987-06-18 | 1987-06-18 | Subchamber diesel engine combustion chamber structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987093763U JPH089376Y2 (en) | 1987-06-18 | 1987-06-18 | Subchamber diesel engine combustion chamber structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63202728U true JPS63202728U (en) | 1988-12-27 |
| JPH089376Y2 JPH089376Y2 (en) | 1996-03-21 |
Family
ID=30956615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987093763U Expired - Lifetime JPH089376Y2 (en) | 1987-06-18 | 1987-06-18 | Subchamber diesel engine combustion chamber structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089376Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58138217A (en) * | 1982-02-09 | 1983-08-17 | Nissan Motor Co Ltd | Piston cavity of swirl-chamber diesel engine |
| JPS6218328U (en) * | 1985-07-18 | 1987-02-03 |
-
1987
- 1987-06-18 JP JP1987093763U patent/JPH089376Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58138217A (en) * | 1982-02-09 | 1983-08-17 | Nissan Motor Co Ltd | Piston cavity of swirl-chamber diesel engine |
| JPS6218328U (en) * | 1985-07-18 | 1987-02-03 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH089376Y2 (en) | 1996-03-21 |
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