JPH0214423U - - Google Patents
Info
- Publication number
- JPH0214423U JPH0214423U JP9092888U JP9092888U JPH0214423U JP H0214423 U JPH0214423 U JP H0214423U JP 9092888 U JP9092888 U JP 9092888U JP 9092888 U JP9092888 U JP 9092888U JP H0214423 U JPH0214423 U JP H0214423U
- Authority
- JP
- Japan
- Prior art keywords
- reflecting surface
- fuel
- cavity
- fuel reflecting
- swirl flow
- 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
- 239000000446 fuel Substances 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図はデイーゼル機関の略平面図、第２図は
第１図のＡ―Ａ線による縦断面図、第３図は第２
図の拡大縦断面図、第４図は第２図と同様の図で
あるがピストンが上死点にある状態を示す図、第
５図は第１図のＣ―Ｃ線による部分拡大縦断面図
、第６図は燃焼方法を説明するための図である。
２……ピストン、３……キヤビテイ、４……燃
料噴射弁、７ｂ……第１燃料反射面、１０ｂ……
第２燃料反射面、Ｊ……噴射燃料軸線、Ｗ……ス
ワール流。
Figure 1 is a schematic plan view of the diesel engine, Figure 2 is a vertical cross-sectional view taken along line A-A in Figure 1, and Figure 3 is a schematic plan view of the diesel engine.
Figure 4 is a view similar to Figure 2, but shows the piston at top dead center; Figure 5 is a partially enlarged vertical cross-section taken along line C-C in Figure 1; 6 are diagrams for explaining the combustion method. 2... Piston, 3... Cavity, 4... Fuel injection valve, 7b... First fuel reflecting surface, 10b...
Second fuel reflecting surface, J...Injected fuel axis, W...Swirl flow.
Claims (1)
上において、燃料噴射弁の噴射燃料軸線上に第１
の燃料反射面を形成すると共に、該第１の燃料反
射面からスワール流の方向に該第１の燃料反射面
に隣接する第２の燃料反射面を形成し、スワール
流の流速が低速のときに前記第１の燃料反射面で
反射された噴射燃料がキヤビテイ中心部に向くよ
うに前記第１の燃料反射面を形成し、スワール流
の流速が高速のときに前記第２の燃料反射面で反
射された噴射燃料がピストンの変位に応じて前記
キヤビテイ周辺部から前記キヤビテイ中心部に向
くように変化せしめられるよう前記第２の燃料反
射面を形成した直噴式デイーゼル機関の燃焼室。 On the inner peripheral wall surface of the cavity formed on the top surface of the piston, a first
a second fuel reflecting surface adjacent to the first fuel reflecting surface in the direction of the swirl flow from the first fuel reflecting surface, and when the flow velocity of the swirl flow is low; The first fuel reflecting surface is formed so that the injected fuel reflected by the first fuel reflecting surface is directed toward the center of the cavity, and when the flow velocity of the swirl flow is high, the second fuel reflecting surface A combustion chamber of a direct injection diesel engine, wherein the second fuel reflecting surface is formed so that the reflected injected fuel is directed from the periphery of the cavity to the center of the cavity in accordance with the displacement of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988090928U JP2524133Y2 (en) | 1988-07-11 | 1988-07-11 | Combustion chamber of direct injection diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988090928U JP2524133Y2 (en) | 1988-07-11 | 1988-07-11 | Combustion chamber of direct injection diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0214423U true JPH0214423U (en) | 1990-01-30 |
| JP2524133Y2 JP2524133Y2 (en) | 1997-01-29 |
Family
ID=31315432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988090928U Expired - Lifetime JP2524133Y2 (en) | 1988-07-11 | 1988-07-11 | Combustion chamber of direct injection diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2524133Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009228599A (en) * | 2008-03-24 | 2009-10-08 | Mazda Motor Corp | Fuel injection device for diesel engine |
| US8424506B2 (en) | 2007-10-22 | 2013-04-23 | Toyota Jidosha Kabushiki Kaisha | Direct-injection type engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6032929A (en) * | 1983-08-03 | 1985-02-20 | Yanmar Diesel Engine Co Ltd | Combustion chamber of direct-injection type internal- combustion engine |
| JPS62135U (en) * | 1985-06-18 | 1987-01-06 | ||
| JPS6311298U (en) * | 1986-07-08 | 1988-01-25 |
-
1988
- 1988-07-11 JP JP1988090928U patent/JP2524133Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6032929A (en) * | 1983-08-03 | 1985-02-20 | Yanmar Diesel Engine Co Ltd | Combustion chamber of direct-injection type internal- combustion engine |
| JPS62135U (en) * | 1985-06-18 | 1987-01-06 | ||
| JPS6311298U (en) * | 1986-07-08 | 1988-01-25 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8424506B2 (en) | 2007-10-22 | 2013-04-23 | Toyota Jidosha Kabushiki Kaisha | Direct-injection type engine |
| JP2009228599A (en) * | 2008-03-24 | 2009-10-08 | Mazda Motor Corp | Fuel injection device for diesel engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2524133Y2 (en) | 1997-01-29 |