JPH0330528U - - Google Patents
Info
- Publication number
- JPH0330528U JPH0330528U JP9054189U JP9054189U JPH0330528U JP H0330528 U JPH0330528 U JP H0330528U JP 9054189 U JP9054189 U JP 9054189U JP 9054189 U JP9054189 U JP 9054189U JP H0330528 U JPH0330528 U JP H0330528U
- Authority
- JP
- Japan
- Prior art keywords
- point
- hole
- center
- combustion chamber
- 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 12
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims 1
- 239000000446 fuel Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
Description
第１図は本考案にかかる点火アシスト方式デイ
ーゼルエンジンの燃焼室の平面図、第２図は第１
図の−断面図、第３図は本考案の燃焼室の孔
における火炎伝播の状態を示し、ａは平面図、ｂ
はａの断面図、第４図は従来のデイーゼルエンジ
ンの燃焼室に燃焼噴射ノズルを含んだ場合の断面
図、第５図は第４図の燃焼室に低セタン価等の燃
料を使用する際の補助点火のプラグを追加した断
面図、第６図は従来の燃焼室の火炎伝播の状態を
示し、ａは平面図、ｂはｂの断面図である。
１……燃焼室、２……孔、３……ノズル、４…
…プラグ、５……底部、６……切り欠き。
Fig. 1 is a plan view of the combustion chamber of the ignition assist type diesel engine according to the present invention, and Fig. 2 is a plan view of the combustion chamber of the ignition assist type diesel engine according to the present invention.
3 shows the state of flame propagation in the hole of the combustion chamber of the present invention, a is a plan view, and b is a cross-sectional view of the figure.
is a cross-sectional view of a, Figure 4 is a cross-sectional view of a conventional diesel engine when the combustion chamber includes a combustion injection nozzle, and Figure 5 is a cross-sectional view of a conventional diesel engine when a combustion chamber includes a combustion injection nozzle. FIG. 6 is a cross-sectional view with an auxiliary ignition plug added, and FIG. 6 shows the state of flame propagation in a conventional combustion chamber, where a is a plan view and b is a cross-sectional view of b. 1... Combustion chamber, 2... Hole, 3... Nozzle, 4...
...Plug, 5...Bottom, 6...Notch.
Claims (1)
るデイーゼルエンジンにおいて、その燃焼室形状
を、ピストン軸中心Ｏ点より所定長さ離れた点を
Ａ点とし、Ａ点から外側へＢ点、内側に前記ピス
トン軸中心を超えてＣ点をそれぞれ設け、Ｂ点を
通る曲率半径を大きく、Ｃ点を通る曲率半径をそ
れより小さくした円弧を描き、その両円弧をＲで
結合してＢＣ線にほぼ対称となる孔に形成し、該
孔のＡＯ線上のピストン軸中心Ｏ点寄りにノズル
を、Ｂ点に接近してプラグをそれぞれ配置したこ
とを特徴とする点火アシスト方式デイーゼルエン
ジンの燃焼室。 ２ 前記孔の底部はＢ点側が深くＣ点側が浅くな
るような勾配としたことを特徴とする請求項１記
載の点火アシスト方式デイーゼルエンジンの燃焼
室。[Scope of Claim for Utility Model Registration] 1. In a diesel engine that uses fuel with a low cetane number and poor ignitability, the shape of the combustion chamber is defined as point A, which is a predetermined distance away from point O, the center of the piston axis, and point A. A point B is set outward from the center, and a point C is set inward beyond the center of the piston axis, and an arc is drawn with a larger radius of curvature passing through point B and a smaller radius of curvature passing through point C, and both arcs are drawn as R. The ignition assist is characterized in that the nozzle is arranged near the O point of the piston axis center on the AO line of the hole, and the plug is arranged close to the B point of the hole. Combustion chamber of diesel engine. 2. The combustion chamber of an ignition assist type diesel engine according to claim 1, wherein the bottom of the hole has a slope such that the bottom of the hole is deeper on the side of point B and shallower on the side of point C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9054189U JPH0330528U (en) | 1989-07-31 | 1989-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9054189U JPH0330528U (en) | 1989-07-31 | 1989-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0330528U true JPH0330528U (en) | 1991-03-26 |
Family
ID=31640058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9054189U Pending JPH0330528U (en) | 1989-07-31 | 1989-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0330528U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009159834A (en) * | 2007-12-28 | 2009-07-23 | Daiwa Seiko Inc | Reel for fishing |
| JP2010119354A (en) * | 2008-11-20 | 2010-06-03 | Globeride Inc | Spinning reel |
-
1989
- 1989-07-31 JP JP9054189U patent/JPH0330528U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009159834A (en) * | 2007-12-28 | 2009-07-23 | Daiwa Seiko Inc | Reel for fishing |
| JP2010119354A (en) * | 2008-11-20 | 2010-06-03 | Globeride Inc | Spinning reel |
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