JPH0457628U - - Google Patents
Info
- Publication number
- JPH0457628U JPH0457628U JP9869290U JP9869290U JPH0457628U JP H0457628 U JPH0457628 U JP H0457628U JP 9869290 U JP9869290 U JP 9869290U JP 9869290 U JP9869290 U JP 9869290U JP H0457628 U JPH0457628 U JP H0457628U
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- diesel engine
- injection nozzle
- intake
- combustion
- 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
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１図はこの考案の一実施例を示すシリンダヘ
ツドを下から見た図、第２図はシリンダヘツド部
の縦断面図、第３図はピストン頂面の軌跡を重ね
て示したバルブリフト特性図、第４図と第５図は
他の実施例を示すシリンダヘツドを下から見た図
、第６図は第５図の実施例に対するバルブリフト
特性図である。
１……シリンダヘツド、２……シリンダ、３…
…ピストン、４……キヤビテイ、５……燃焼室、
７……噴射ノズル、１１，１２……吸気バルブ、
１３，１４……排気バルブ、２５〜２７……吸気
バルブ。
Fig. 1 is a bottom view of a cylinder head showing an embodiment of this invention, Fig. 2 is a vertical cross-sectional view of the cylinder head, and Fig. 3 is a valve lift characteristic showing the locus of the top surface of the piston superimposed. 4 and 5 are bottom views of cylinder heads showing other embodiments, and FIG. 6 is a valve lift characteristic diagram for the embodiment of FIG. 5. 1...Cylinder head, 2...Cylinder, 3...
...Piston, 4...Cavity, 5...Combustion chamber,
7... Injection nozzle, 11, 12... Intake valve,
13, 14...Exhaust valve, 25-27...Intake valve.
Claims (1)
ノズルのまわりに複数の吸排気バルブを配置し、
前記噴射ノズルに対向するピストン頂面に浅皿型
のキヤビテイを形成した直噴式デイーゼルエンジ
ンにおいて、前記キヤビテイの外径を比較的大き
くし、このキヤビテイ内に前記吸排気バルブの一
部が排気上死点近くでのバルブリフト中にはまり
こむようにしたことを特徴とするデイーゼルエン
ジン。 Multiple intake and exhaust valves are arranged around the combustion injection nozzle, which is installed facing almost the center of the combustion chamber.
In a direct-injection diesel engine in which a shallow dish-shaped cavity is formed on the top surface of the piston facing the injection nozzle, the outer diameter of the cavity is made relatively large, and a portion of the intake and exhaust valve is disposed within the cavity. A diesel engine that is characterized by being stuck during valve lift near the point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9869290U JPH0457628U (en) | 1990-09-20 | 1990-09-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9869290U JPH0457628U (en) | 1990-09-20 | 1990-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0457628U true JPH0457628U (en) | 1992-05-18 |
Family
ID=31840053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9869290U Pending JPH0457628U (en) | 1990-09-20 | 1990-09-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0457628U (en) |
-
1990
- 1990-09-20 JP JP9869290U patent/JPH0457628U/ja active Pending