JPH0264724U - - Google Patents
Info
- Publication number
- JPH0264724U JPH0264724U JP14457388U JP14457388U JPH0264724U JP H0264724 U JPH0264724 U JP H0264724U JP 14457388 U JP14457388 U JP 14457388U JP 14457388 U JP14457388 U JP 14457388U JP H0264724 U JPH0264724 U JP H0264724U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- opening
- port
- check valve
- intake port
- 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 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
Landscapes
- Valve Device For Special Equipments (AREA)
Description
第１図乃至第５図は一実施例に係り、第１図及
び第２図は縦断面図、第３図はポートレイアウト
の展開図、第４図は要部の斜視図、第５図はシリ
ンダの横断面図である。第６図及び第７図は別実
施例を示すエンジンの縦断面図である。
符号の説明、１…シリンダ、３…クランクケー
ス、４…ピストン、５…クランク室、６…燃焼室
、７…吸気通路、１０…第１吸気ポート、１０…
第２吸気ポート、１２…ブースタポート、１３…
掃気ポート、１５…弁支持体、１５ａ，１５ｂ…
開口部、１６…逆止弁、１７…連通路、１８…逆
止弁。
1 to 5 relate to one embodiment, and FIGS. 1 and 2 are longitudinal sectional views, FIG. 3 is a developed view of the port layout, FIG. 4 is a perspective view of the main parts, and FIG. 5 is a longitudinal sectional view. FIG. 3 is a cross-sectional view of the cylinder. 6 and 7 are longitudinal sectional views of an engine showing another embodiment. Explanation of symbols, 1...Cylinder, 3...Crankcase, 4...Piston, 5...Crank chamber, 6...Combustion chamber, 7...Intake passage, 10...First intake port, 10...
Second intake port, 12... Booster port, 13...
Scavenging port, 15...Valve support, 15a, 15b...
Opening, 16...Check valve, 17...Communication path, 18...Check valve.
Claims (1)
止弁で開閉される第２吸気ポートとをシリンダ内
面に上下２段に開口しかつこれらの吸気ポートを
シリンダ側面に形成された吸気通路と連通したも
のにおいて、前記上段の第１吸気ポートを左右に
分離して設けるとともに、その中間部直上のシリ
ンダ内面に逆止弁を介して前記吸気通路と連通す
るブースタポートを開口形成したことを特徴とす
る２サイクルエンジンの吸気装置。 (2) 前記第１項記載のものにおいて、吸気通路
内に装着される弁支持体を上下２段に構成し、そ
の下段に第２吸気ポートと連通する開口部とこれ
を開閉する逆止弁を設け、一方上段の左右には第
１吸気ポートと連通する連通路を分離して設ける
とともに、これら連通路の中央部にブースタポー
トと連通する開口部とこれを開閉するための逆止
弁を設けたことを特徴とする２サイクルエンジン
の吸気装置。[Claims for Utility Model Registration] (1) A first intake port that is opened and closed by a piston and a second intake port that is opened and closed by a check valve are opened on the inner surface of the cylinder in two stages, upper and lower, and these intake ports are connected to the cylinder. A booster that communicates with an intake passage formed on a side surface, the first intake port of the upper stage is provided separately on the left and right, and the booster communicates with the intake passage via a check valve on the inner surface of the cylinder immediately above the intermediate part. An intake device for a two-stroke engine, characterized in that a port is formed as an opening. (2) In the item described in item 1 above, the valve support body installed in the intake passage is configured in two stages, upper and lower, and the lower stage has an opening communicating with the second intake port and a check valve for opening and closing the opening. On the other hand, communication passages communicating with the first intake port are separately provided on the left and right sides of the upper stage, and an opening communicating with the booster port and a check valve for opening and closing the opening are provided in the center of these communication passages. An intake system for a two-stroke engine, characterized by the following:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14457388U JPH0264724U (en) | 1988-11-05 | 1988-11-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14457388U JPH0264724U (en) | 1988-11-05 | 1988-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0264724U true JPH0264724U (en) | 1990-05-15 |
Family
ID=31412398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14457388U Pending JPH0264724U (en) | 1988-11-05 | 1988-11-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0264724U (en) |
-
1988
- 1988-11-05 JP JP14457388U patent/JPH0264724U/ja active Pending