JPH0195505U - - Google Patents
Info
- Publication number
- JPH0195505U JPH0195505U JP18997787U JP18997787U JPH0195505U JP H0195505 U JPH0195505 U JP H0195505U JP 18997787 U JP18997787 U JP 18997787U JP 18997787 U JP18997787 U JP 18997787U JP H0195505 U JPH0195505 U JP H0195505U
- Authority
- JP
- Japan
- Prior art keywords
- opens
- port
- ventilation valve
- engine
- 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
Landscapes
- Valve Device For Special Equipments (AREA)
- Characterised By The Charging Evacuation (AREA)
Description
第１図は本考案に係る排気ガス換気弁を備えた
エンジンの一実施例を示す燃焼室近傍の概略構成
図、第２図は第１図のエンジンの排気弁、吸気弁
及び換気弁のバルブタイミングを示すグラフ、第
３図は第１図のエンジンの排気行程及び吸気行程
を示す図、第４図は従来のエンジンの排気行程及
び吸気行程を示す図である。
１…シリンダヘツド、２…燃焼室、２ａ…吸気
ポート、２ｂ…排気ポート、２ｃ…換気ポート、
４…排気弁、５…排気弁、６…換気弁、７〜９…
カム。
Fig. 1 is a schematic diagram of the vicinity of the combustion chamber showing an embodiment of an engine equipped with an exhaust gas ventilation valve according to the present invention, and Fig. 2 shows the valves of the exhaust valve, intake valve, and ventilation valve of the engine shown in Fig. 1. A graph showing the timing, FIG. 3 is a diagram showing the exhaust stroke and intake stroke of the engine of FIG. 1, and FIG. 4 is a diagram showing the exhaust stroke and intake stroke of the conventional engine. 1... Cylinder head, 2... Combustion chamber, 2a... Intake port, 2b... Exhaust port, 2c... Ventilation port,
4...exhaust valve, 5...exhaust valve, 6...ventilation valve, 7-9...
cam.
Claims (1)
気通路に開口するポートと、当該ポートの燃焼室
に開口する一端を開閉する換気弁と、前記エンジ
ンの排気行程の上死点近傍において所定時期前記
換気弁を開弁させるカム機構と、前記吸気通路内
の吸気を加圧して前記ポートに供給する加圧手段
とを備えたことを特徴とする排気ガス換気弁を備
えたエンジン。 a port that opens at one end into the combustion chamber of an internal combustion engine and the other end into an intake passage; a ventilation valve that opens and closes one end of the port that opens into the combustion chamber; An engine equipped with an exhaust gas ventilation valve, characterized in that the engine includes a cam mechanism that opens the ventilation valve, and a pressurizing means that pressurizes intake air in the intake passage and supplies it to the port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18997787U JPH0195505U (en) | 1987-12-16 | 1987-12-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18997787U JPH0195505U (en) | 1987-12-16 | 1987-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0195505U true JPH0195505U (en) | 1989-06-23 |
Family
ID=31480981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18997787U Pending JPH0195505U (en) | 1987-12-16 | 1987-12-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0195505U (en) |
-
1987
- 1987-12-16 JP JP18997787U patent/JPH0195505U/ja active Pending
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