JPH0414732U - - Google Patents
Info
- Publication number
- JPH0414732U JPH0414732U JP5529990U JP5529990U JPH0414732U JP H0414732 U JPH0414732 U JP H0414732U JP 5529990 U JP5529990 U JP 5529990U JP 5529990 U JP5529990 U JP 5529990U JP H0414732 U JPH0414732 U JP H0414732U
- Authority
- JP
- Japan
- Prior art keywords
- air intake
- intake valves
- valve
- mask wall
- mask
- 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 description 5
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１図は２サイクル内燃機関の側面断面図、第
２図は第１図のシリンダヘツドの底面図、第３図
はマスク壁の形状を示す側面図、第４図は給気弁
のリフト量と給気弁の開口面積の関係を示す線図
、第５図は作動を説明するための図、第６図は別
の実施例におけるマスク壁の形状を示す側面図、
第７図は第６図の実施例における給気弁のリフト
量と給気弁の開口面積の関係を示す線図である。
６……給気弁、７……排気弁、９……給気弁座
、２２……マスク壁、２２ａ……内側半分のマス
ク壁部分、２２ｂ……外側半分のマスク壁部分。
Figure 1 is a side sectional view of a two-stroke internal combustion engine, Figure 2 is a bottom view of the cylinder head in Figure 1, Figure 3 is a side view showing the shape of the mask wall, and Figure 4 is the lift amount of the intake valve. FIG. 5 is a diagram for explaining the operation; FIG. 6 is a side view showing the shape of the mask wall in another embodiment;
FIG. 7 is a diagram showing the relationship between the lift amount of the air supply valve and the opening area of the air supply valve in the embodiment of FIG. 6. 6... Air supply valve, 7... Exhaust valve, 9... Air supply valve seat, 22... Mask wall, 22a... Inner half mask wall portion, 22b... Outer half mask wall portion.
Claims (1)
を配置すると共に該平面の他側に排気弁を配置し
、排気弁側に位置する各給気弁周縁部と弁座間に
形成される開口マスク壁によつて覆うようにした
２サイクル内燃機関の燃焼室構造において、上記
各マスク壁の外側の高さを各マスク壁の内側の高
さよりも高くして該外側のマスク壁部分により各
給気弁の上記開口を給気弁の全開弁期間に亘つて
閉鎖すると共に該内側のマスク壁部分により給気
弁のリフト量が小さいときのみ各給気弁の上記開
口を閉鎖するようにした２サイクル内燃機関の燃
焼室構造。 A pair of intake valves are arranged on one side of a plane containing the cylinder axis, and an exhaust valve is arranged on the other side of the plane, and an opening is formed between the peripheral edge of each intake valve and the valve seat located on the exhaust valve side. In a combustion chamber structure of a two-stroke internal combustion engine that is covered by a mask wall, the height of the outside of each of the mask walls is higher than the height of the inside of each mask wall, so that each of the air supply is The openings of the air intake valves are closed during the full opening period of the air intake valves, and the openings of each air intake valve are closed by the inner mask wall portion only when the lift amount of the air intake valves is small. Combustion chamber structure of cycle internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5529990U JPH0414732U (en) | 1990-05-29 | 1990-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5529990U JPH0414732U (en) | 1990-05-29 | 1990-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0414732U true JPH0414732U (en) | 1992-02-06 |
Family
ID=31578127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5529990U Pending JPH0414732U (en) | 1990-05-29 | 1990-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0414732U (en) |
-
1990
- 1990-05-29 JP JP5529990U patent/JPH0414732U/ja active Pending