JPH02149826U - - Google Patents
Info
- Publication number
- JPH02149826U JPH02149826U JP5863989U JP5863989U JPH02149826U JP H02149826 U JPH02149826 U JP H02149826U JP 5863989 U JP5863989 U JP 5863989U JP 5863989 U JP5863989 U JP 5863989U JP H02149826 U JPH02149826 U JP H02149826U
- Authority
- JP
- Japan
- Prior art keywords
- wall surface
- polygonal column
- central protrusion
- viewed
- partial
- 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
- 239000000446 fuel Substances 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１〜２図は本考案に係わるもので第１図は燃
焼室の上面図、第２図は第１図の−断面図、
第３〜４図は従来例で第３図は第１図応当図、第
４図は第３図の−断面図である。
Ａ……キヤビテイ壁面、Ｂ……ピストンキヤデ
イ、３……部分リエントラント、３ｘ……同壁面
、３ａ……同エツジ部、５……多角柱（中央突起
）、５ａ……中央突起部コーナ、５ｂ……多角柱
側面。
Figures 1 and 2 are related to the present invention; Figure 1 is a top view of the combustion chamber, Figure 2 is a cross-sectional view of Figure 1,
3 and 4 show a conventional example, FIG. 3 is a view corresponding to FIG. 1, and FIG. 4 is a cross-sectional view taken from FIG. A...Cavity wall surface, B...Piston cavity, 3...Partial reentrant, 3x...Same wall surface, 3a...Same edge part, 5...Polygonal column (central projection), 5a...Central projection corner, 5b...Polygonal prism side surface.
Claims (1)
し且つキヤビテイ壁面に燃料噴霧の数に応じた部
分エントラント壁面を有するものにおいて、中央
突起部の形状を上面から見て多角柱状とし、該多
角柱の壁面を凹面状に形成し、さらに部分リエン
トラント壁面に中央突起部のコーナが向くように
形成したピストン。 In a device in which a central protrusion is formed in the center of the piston cavity, and the cavity wall has a partial entrant wall surface corresponding to the number of fuel sprays, the shape of the central protrusion is a polygonal column when viewed from above, and the wall surface of the polygonal column is shaped like a polygonal column when viewed from above. A piston that is formed into a concave shape, and further formed so that the corner of the central protrusion faces the partial reentrant wall surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5863989U JPH02149826U (en) | 1989-05-23 | 1989-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5863989U JPH02149826U (en) | 1989-05-23 | 1989-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02149826U true JPH02149826U (en) | 1990-12-21 |
Family
ID=31584433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5863989U Pending JPH02149826U (en) | 1989-05-23 | 1989-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02149826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030030247A (en) * | 2001-10-09 | 2003-04-18 | 현대자동차주식회사 | Combustion chamber structure of diesel engine |
| JP2018155161A (en) * | 2017-03-17 | 2018-10-04 | マツダ株式会社 | diesel engine |
-
1989
- 1989-05-23 JP JP5863989U patent/JPH02149826U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030030247A (en) * | 2001-10-09 | 2003-04-18 | 현대자동차주식회사 | Combustion chamber structure of diesel engine |
| JP2018155161A (en) * | 2017-03-17 | 2018-10-04 | マツダ株式会社 | diesel engine |
| CN110382835A (en) * | 2017-03-17 | 2019-10-25 | 马自达汽车株式会社 | Diesel engine |