JPS6421221U - - Google Patents
Info
- Publication number
- JPS6421221U JPS6421221U JP11640587U JP11640587U JPS6421221U JP S6421221 U JPS6421221 U JP S6421221U JP 11640587 U JP11640587 U JP 11640587U JP 11640587 U JP11640587 U JP 11640587U JP S6421221 U JPS6421221 U JP S6421221U
- Authority
- JP
- Japan
- Prior art keywords
- combustion chamber
- fuel injection
- glow plug
- view
- diesel 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
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims 2
- 238000005266 casting Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Description
第１図は本考案の第１実施例を示す縦断面図、
第２図は同じくドーム部の鋳包み前の状態を示す
断面図、第３図は第２実施例のドーム部の鋳包み
状態を示す断面図、第４図は第３実施例のドーム
部の平面図、第５図は同じく鋳包み状態を示す断
面図、第６図は第４実施例のドーム部の鋳包も前
の状態を示す断面図、第７図、第８図はそれぞれ
異なる参考例を示す断面図である。第９図は従来
例の縦断面図である。
３……シリンダヘツド、４……渦流室、５……
主燃焼室、７……ドーム部、７Ａ……挿入孔、７
Ｂ……抜孔、７Ｃ……開孔、８……燃料噴射ノズ
ル、８Ａ……取付穴、９……グロープラグ、９Ａ
……取付穴、１１……保護縁、１１Ａ……金属筒
、１１Ｂ……栓体。
FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention;
Fig. 2 is a sectional view showing the dome part before casting, Fig. 3 is a sectional view showing the dome part of the second embodiment in a cast-in state, and Fig. 4 is a sectional view of the dome part of the third embodiment. A plan view, FIG. 5 is a cross-sectional view showing the cast-in condition, FIG. 6 is a cross-sectional view showing the dome part of the fourth embodiment in its previous state, and FIGS. 7 and 8 are different references. It is a sectional view showing an example. FIG. 9 is a longitudinal sectional view of a conventional example. 3...Cylinder head, 4...Swirl chamber, 5...
Main combustion chamber, 7...Dome part, 7A...Insertion hole, 7
B...Blank hole, 7C...Open hole, 8...Fuel injection nozzle, 8A...Mounting hole, 9...Glow plug, 9A
...Mounting hole, 11...Protective edge, 11A...Metal tube, 11B...Plug body.
補正 昭６２．１０．２６
図面の簡単な説明を次のように補正する。
明細書第１１頁の第１行目に「参考例」とある
のを「実施例」と補正する。Amendment October 26, 1982 The brief description of the drawing is amended as follows. In the first line of page 11 of the specification, the words "Reference Examples" are amended to read "Examples."
Claims (1)
を設け、この渦流室を形成するセラミツクのドー
ム部に、燃料噴射ノズルとグロープラグとを取付
けたデイーゼルエンジンの燃焼室構造において、
前記セラミツクドーム部に設けた燃料噴射ノズル
とグロープラグの各取付穴の周囲、少なくとも取
付穴の対向する部分に金属の保護縁を設けたこと
を特徴とするデイーゼルエンジンの燃焼室構造。 In the combustion chamber structure of a diesel engine, a swirl chamber is provided in the upper part of the main combustion chamber and communicates through a nozzle, and a fuel injection nozzle and a glow plug are attached to a ceramic dome forming the swirl chamber.
A combustion chamber structure for a diesel engine, characterized in that a metal protective edge is provided around each mounting hole of a fuel injection nozzle and a glow plug provided in the ceramic dome portion, at least in a portion facing the mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11640587U JPS6421221U (en) | 1987-07-29 | 1987-07-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11640587U JPS6421221U (en) | 1987-07-29 | 1987-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6421221U true JPS6421221U (en) | 1989-02-02 |
Family
ID=31358910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11640587U Pending JPS6421221U (en) | 1987-07-29 | 1987-07-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6421221U (en) |
-
1987
- 1987-07-29 JP JP11640587U patent/JPS6421221U/ja active Pending