JPH01114921U - - Google Patents
Info
- Publication number
- JPH01114921U JPH01114921U JP1040688U JP1040688U JPH01114921U JP H01114921 U JPH01114921 U JP H01114921U JP 1040688 U JP1040688 U JP 1040688U JP 1040688 U JP1040688 U JP 1040688U JP H01114921 U JPH01114921 U JP H01114921U
- Authority
- JP
- Japan
- Prior art keywords
- axis
- piston
- nozzle
- notch
- injector
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims 2
- 239000000446 fuel Substances 0.000 claims 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の一実施例を示すピストンの上
面図、第２図は第１図の側断面図、第３図は本考
案の第２の実施例を示すピストンの上面図、第４
図は本考案の第３の実施例を示すピストンの上面
図、第５図は従来技術を示すデイーゼル機関のピ
ストン並びにその近傍部の要部断面図である。
１……ピストン、１ａ……ピストンの軸心、２
，１２，１３，１４……燃焼室、３……インジエ
クタ、３ａ……インジエクタの軸心、６Ａ，６Ｄ
……噴口、６ａ，６ｄ……噴口の軸心、７Ａ，７
Ｂ，７Ｃ，７Ｄ……仮想分割面、１２Ａ〜１２Ｄ
，１３Ａ〜１３Ｄ，１４Ａ〜１４Ｄ……切欠き部
の軸心、１２ａ〜１２ｄ，１３ａ〜１３ｄ，１４
ａ〜１４ｄ……切欠き部、Ｒ，Ｒ１，Ｒ２，Ｒ３
，Ｒ４……円弧、θａ，θｄ……インジエクタの
軸心と噴口の軸心とのなす角。
FIG. 1 is a top view of a piston showing one embodiment of the present invention, FIG. 2 is a side sectional view of FIG. 1, FIG. 3 is a top view of a piston showing a second embodiment of the present invention, and FIG.
FIG. 5 is a top view of a piston showing a third embodiment of the present invention, and FIG. 5 is a sectional view of a piston and its vicinity of a diesel engine according to the prior art. 1...Piston, 1a...Piston axis, 2
, 12, 13, 14... Combustion chamber, 3... Injector, 3a... Injector axis, 6A, 6D
...Nozzle, 6a, 6d...Axis of nozzle, 7A, 7
B, 7C, 7D...virtual dividing plane, 12A to 12D
, 13A-13D, 14A-14D... Axis center of notch, 12a-12d, 13a-13d, 14
a to 14d...notch, R, R1, R2, R3
, R4...Circular arc, θa, θd...Angle between the axis of the injector and the axis of the nozzle.
Claims (1)
燃料噴霧を受ける略円柱状空洞部をなすピストン
の燃焼室において、前記ピストンの軸心を軸心と
して、その噴口の数分、均等分割した仮想分割面
の方向の前記空洞部の壁面を、その方向面上に前
記ピストンの軸心と方向が一致する軸心を有し、
底面に行くに従つて大となる円弧状に切欠き、該
切欠き部を前記噴霧方向に略一致対向させ、前記
インジエクタの軸心と前記噴口の軸心とのなす角
が大きくなる程、その噴口に対応する切欠き部の
容量を小さくするよう構成したことを特徴とする
ピストンの燃焼室。 In the combustion chamber of the piston, which is a substantially cylindrical cavity that receives fuel spray from the nozzle of the injector arranged at an inclination, the imaginary dividing plane is equally divided by the number of nozzles with the axis of the piston as the axis. a wall surface of the cavity in the direction of, and having an axis on the direction plane whose direction coincides with the axis of the piston;
A notch is formed in an arc shape that becomes larger toward the bottom surface, and the notch portion is arranged to face substantially coincident with the spray direction, and the larger the angle between the axis of the injector and the axis of the nozzle, A combustion chamber for a piston, characterized in that the volume of a notch corresponding to a nozzle is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1040688U JPH0730909Y2 (en) | 1988-01-28 | 1988-01-28 | Piston combustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1040688U JPH0730909Y2 (en) | 1988-01-28 | 1988-01-28 | Piston combustion chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01114921U true JPH01114921U (en) | 1989-08-02 |
| JPH0730909Y2 JPH0730909Y2 (en) | 1995-07-19 |
Family
ID=31218039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1040688U Expired - Lifetime JPH0730909Y2 (en) | 1988-01-28 | 1988-01-28 | Piston combustion chamber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0730909Y2 (en) |
-
1988
- 1988-01-28 JP JP1040688U patent/JPH0730909Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0730909Y2 (en) | 1995-07-19 |