JPH0444434U - - Google Patents
Info
- Publication number
- JPH0444434U JPH0444434U JP7034290U JP7034290U JPH0444434U JP H0444434 U JPH0444434 U JP H0444434U JP 7034290 U JP7034290 U JP 7034290U JP 7034290 U JP7034290 U JP 7034290U JP H0444434 U JPH0444434 U JP H0444434U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- diesel engine
- piston cavity
- cavity
- combustion chamber
- 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 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１〜４図は本考案に係わるもので、第１図は
第１実施例のピストンキヤビテイ部分の平面図、
第２図は第１図の−断面図、第３図は第２実
施例のピストンキヤビテイ部分の平面図、第４図
は第３図の−断面図、第５〜６図は従来例で
第５図は第１図応当図、第６図は第２図応当図で
ある。
１……ノズル、２……噴霧、３……部分リエン
トラント、３ｘ……同壁面、５……角形突起、５
ｂ……同側面、Ａ……ピストンキヤビテイ中央部
。
1 to 4 are related to the present invention, and FIG. 1 is a plan view of the piston cavity portion of the first embodiment;
Figure 2 is a cross-sectional view of Figure 1, Figure 3 is a plan view of the piston cavity portion of the second embodiment, Figure 4 is a cross-sectional view of Figure 3, and Figures 5 and 6 are of the conventional example. Fig. 5 is a corresponding diagram to Fig. 1, and Fig. 6 is a corresponding diagram to Fig. 2. 1... Nozzle, 2... Spray, 3... Partial reentrant, 3x... Same wall surface, 5... Square projection, 5
b... Same side, A... Center part of the piston cavity.
Claims (1)
ゼルエンジンにおいて、キヤビテイ壁面に設けら
れた噴口の数だけの部分リエントラント３と、ピ
ストンキヤビテイの中央部に噴口数に対応して設
けられた角形突起５と、ピストンの軸心を含む縦
断面における角形突起の側面に形成された凹形円
弧状壁面５ｂとを有してなるデイーゼルエンジン
の燃焼室。 (2) 請求項(1)において、さらに前記凹形円弧状
壁面と滑らかな曲面で連なり且円弧状に形成され
たピストンキヤビテイ底面Ａ′とを有してなるデ
イーゼルエンジンの燃焼室。[Scope of Claim for Utility Model Registration] (1) In a direct injection diesel engine having a piston cavity, partial reentrants 3 corresponding to the number of nozzles provided on the wall of the cavity, and a portion corresponding to the number of nozzles provided in the center of the piston cavity. A combustion chamber for a diesel engine, comprising a square protrusion 5 provided with a piston axis, and a concave arcuate wall surface 5b formed on a side surface of the square protrusion in a longitudinal section including the axis of the piston. (2) A combustion chamber for a diesel engine according to claim (1), further comprising a piston cavity bottom surface A' formed in an arc shape and connected to the concave arc wall surface with a smooth curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7034290U JPH0444434U (en) | 1990-05-21 | 1990-07-03 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5223890 | 1990-05-21 | ||
| JP7034290U JPH0444434U (en) | 1990-05-21 | 1990-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0444434U true JPH0444434U (en) | 1992-04-15 |
Family
ID=31948560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7034290U Pending JPH0444434U (en) | 1990-05-21 | 1990-07-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444434U (en) |
-
1990
- 1990-07-03 JP JP7034290U patent/JPH0444434U/ja active Pending