JPS6387209U - - Google Patents
Info
- Publication number
- JPS6387209U JPS6387209U JP18293386U JP18293386U JPS6387209U JP S6387209 U JPS6387209 U JP S6387209U JP 18293386 U JP18293386 U JP 18293386U JP 18293386 U JP18293386 U JP 18293386U JP S6387209 U JPS6387209 U JP S6387209U
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- connecting rod
- pressure reducing
- piston
- stem end
- 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 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000002000 scavenging effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000006837 decompression Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
Landscapes
- Valve Device For Special Equipments (AREA)
Description
第１図〜第４図は本考案の第一実施例を示し、
第１図はエンジンの要部断面図、第２図は第１図
の―断面図、第３図ａは下死点時のエンジン
の要部概略図、第３図ｂ、第３図ｃは圧縮時のエ
ンジンの動作別の要部概略図、第３図ｄは上死点
時のエンジンの概略図、第３図ｅは爆発後のエン
ジンの要部概略図、第４図ａは縦軸にシリンダ内
圧力Ｐ、横軸にシリンダ容積Ｖを示すＰ―Ｖ線図
、第４図ｂはＰ―Ｖ線図に対応するピストン位置
を示す図、第５図は本考案の第二実施例によるエ
ンジンの要部断面図である。
１…シリンダブロツク、１ａ…シリンダボア、
１ｂ，１ｃ…掃排気通路、３…コネクテイングロ
ツド、５…ピストン、８，９…減圧通路、１０…
制御バルブ、１０ｃ…ステムエンド、１４…押圧
部材、１５…燃焼室。
1 to 4 show a first embodiment of the present invention,
Figure 1 is a sectional view of the main parts of the engine, Figure 2 is a cross-sectional view of Figure 1, Figure 3a is a schematic diagram of the main parts of the engine at bottom dead center, Figures 3b and 3c are A schematic diagram of the main parts of the engine during compression, Fig. 3 d is a schematic diagram of the engine at top dead center, Fig. 3 e is a schematic diagram of the main parts of the engine after explosion, and Fig. 4 a is the vertical axis. 4 is a PV diagram showing the cylinder internal pressure P and the horizontal axis is the cylinder volume V, FIG. 4b is a diagram showing the piston position corresponding to the PV diagram, and FIG. 5 is a second embodiment of the present invention. FIG. 1...Cylinder block, 1a...Cylinder bore,
1b, 1c...Scavenging and exhaust passage, 3...Connecting rod, 5...Piston, 8, 9...Decompression passage, 10...
Control valve, 10c... Stem end, 14... Pressing member, 15... Combustion chamber.
Claims (1)
、コネクテイングロツドに連設されたピストンが
挿通され、このピストンに、上記シリンダボアに
形成された燃焼室と上記シリンダブロツクに形成
された掃排気通路とを連通する減圧通路が穿設さ
れている２サイクルエンジンにおいて、前記減圧
通路に制御バルブが介装され、この制御バルブの
ステムエンドが上記ピストン内部に露呈され、こ
のステムエンドに、前記コネクテイングロツドに
連設しこのコネクテイングロツドの揺動運動に追
従して圧縮行程時に上記制御バルブを強制開弁さ
せる押圧部材が対設されていることを特徴とする
２サイクルエンジンの減圧装置。 A piston connected to a connecting rod is inserted into a cylinder bore formed in the cylinder block, and this piston communicates with a combustion chamber formed in the cylinder bore and a scavenging/exhaust passage formed in the cylinder block. In a two-stroke engine having a pressure reducing passage, a control valve is interposed in the pressure reducing passage, a stem end of the control valve is exposed inside the piston, and a stem end is connected to the connecting rod. 1. A pressure reducing device for a two-stroke engine, characterized in that a pressing member is provided opposite to the control valve for forcibly opening the control valve during a compression stroke by following the rocking motion of the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18293386U JPS6387209U (en) | 1986-11-27 | 1986-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18293386U JPS6387209U (en) | 1986-11-27 | 1986-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6387209U true JPS6387209U (en) | 1988-06-07 |
Family
ID=31129193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18293386U Pending JPS6387209U (en) | 1986-11-27 | 1986-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6387209U (en) |
-
1986
- 1986-11-27 JP JP18293386U patent/JPS6387209U/ja active Pending