JPS63168221U - - Google Patents
Info
- Publication number
- JPS63168221U JPS63168221U JP6282387U JP6282387U JPS63168221U JP S63168221 U JPS63168221 U JP S63168221U JP 6282387 U JP6282387 U JP 6282387U JP 6282387 U JP6282387 U JP 6282387U JP S63168221 U JPS63168221 U JP S63168221U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- auxiliary
- engine
- auxiliary port
- cylinders
- 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.)
- Granted
Links
- 230000002000 scavenging effect Effects 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 1
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図は本考案の第１実施例にかかるエンジン
の概略説明図、第２図ａ、第２図ｂは夫々、第１
実施例における第１、第４気筒の主吸気弁、補助
吸気弁、排気弁のバルブタイミングを示すタイミ
ングチヤート、第３図は本考案の第２実施例にか
かるエンジンの概略説明図、第４図ａ、第４図ｂ
、第４図ｃは夫々第２実施例における主吸気弁、
補助吸気弁、排気弁のバルブタイミングを示すタ
イミングチヤート、第５図は本考案の第３実施例
にかかるエンジンの概略説明図、第６図ａ、第６
図ｂ、第６図ｃ、第６図ｄは夫々第３実施例にお
ける第１〜第４気筒の主吸気弁、補助吸気弁、排
気弁のバルブタイミングを示すタイミングチヤー
ト、第７図は本考案の第４実施例にかかるエンジ
ンの概略説明図、第８図は第７図の開閉制御弁の
制御特性を示すグラフ、第９図ａ、第９図ｂ、第
９図ｃ、第９図ｄは夫々第４実施例における第１
〜第４気筒の主吸気弁、補助吸気弁、排気弁のバ
ルブタイミングを示すタイミングチヤートである
。
１……燃焼室、２……吸気ポート、８……排気
ポート、１１……補助吸気ポート、１２，１３…
…第１、第２連通路、１５，１６……連通路、Ｇ
１，Ｇ４，Ｇ７，Ｇ１０……主吸気弁、Ｇ２，Ｇ
５，Ｇ８，Ｇ１１……補助吸気弁、Ｇ３，Ｇ６，
Ｇ９，Ｇ１２……排気弁。
FIG. 1 is a schematic explanatory diagram of an engine according to a first embodiment of the present invention, and FIGS. 2a and 2b are respectively
A timing chart showing the valve timing of the main intake valve, auxiliary intake valve, and exhaust valve of the first and fourth cylinders in the embodiment, FIG. 3 is a schematic explanatory diagram of the engine according to the second embodiment of the present invention, and FIG. 4 a, Figure 4b
, FIG. 4c shows the main intake valve in the second embodiment, respectively.
A timing chart showing the valve timing of the auxiliary intake valve and exhaust valve; FIG. 5 is a schematic explanatory diagram of the engine according to the third embodiment of the present invention; FIGS. 6a and 6
Figures b, 6c, and 6d are timing charts showing the valve timings of the main intake valve, auxiliary intake valve, and exhaust valve of the first to fourth cylinders, respectively, in the third embodiment, and Figure 7 is the timing chart of the present invention. 8 is a graph showing the control characteristics of the on-off control valve of FIG. 7, FIG. 9a, FIG. 9b, FIG. 9c, and FIG. 9d. are the first in the fourth embodiment, respectively.
- This is a timing chart showing the valve timing of the main intake valve, auxiliary intake valve, and exhaust valve of the fourth cylinder. 1... Combustion chamber, 2... Intake port, 8... Exhaust port, 11... Auxiliary intake port, 12, 13...
...First and second communication passages, 15, 16...Communication passages, G
1 , G 4 , G 7 , G 10 ... Main intake valve, G 2 , G
5 , G8 , G11 ...Auxiliary intake valve, G3 , G6 ,
G9 , G12 ...Exhaust valve.
Claims (1)
ポートとは別に補助ポートを設けるとともに、各
気筒の補助ポートを他の気筒の補助ポートに所定
の関係でもつて連通する連通路を設ける一方、上
記各補助ポートを、少なくとも排気行程後期と圧
縮行程初期に開状態とする補助開閉弁を設け、各
気筒の排気行程終期に、他気筒で発生される高圧
を連通路及び補助ポートを介して当該気筒に作用
させるようにしたことを特徴とするエンジンの掃
気装置。 Each cylinder constituting a multi-cylinder engine is provided with an auxiliary port separate from the intake and exhaust ports, and a communication path is provided that communicates the auxiliary port of each cylinder with the auxiliary ports of other cylinders in a predetermined relationship. An auxiliary opening/closing valve is provided that opens each auxiliary port at least during the latter half of the exhaust stroke and the beginning of the compression stroke, and at the end of the exhaust stroke of each cylinder, high pressure generated in other cylinders is passed through the communication path and the auxiliary port to the cylinder concerned. A scavenging device for an engine, characterized in that the scavenging device acts on the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6282387U JPH0619807Y2 (en) | 1987-04-24 | 1987-04-24 | Engine scavenger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6282387U JPH0619807Y2 (en) | 1987-04-24 | 1987-04-24 | Engine scavenger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63168221U true JPS63168221U (en) | 1988-11-01 |
| JPH0619807Y2 JPH0619807Y2 (en) | 1994-05-25 |
Family
ID=30897469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6282387U Expired - Lifetime JPH0619807Y2 (en) | 1987-04-24 | 1987-04-24 | Engine scavenger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619807Y2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7178492B2 (en) | 2002-05-14 | 2007-02-20 | Caterpillar Inc | Air and fuel supply system for combustion engine |
| US7191743B2 (en) | 2002-05-14 | 2007-03-20 | Caterpillar Inc | Air and fuel supply system for a combustion engine |
| US7201121B2 (en) | 2002-02-04 | 2007-04-10 | Caterpillar Inc | Combustion engine including fluidically-driven engine valve actuator |
| US7204213B2 (en) | 2002-05-14 | 2007-04-17 | Caterpillar Inc | Air and fuel supply system for combustion engine |
| US7222614B2 (en) | 1996-07-17 | 2007-05-29 | Bryant Clyde C | Internal combustion engine and working cycle |
| US7252054B2 (en) | 2002-05-14 | 2007-08-07 | Caterpillar Inc | Combustion engine including cam phase-shifting |
| US7281527B1 (en) | 1996-07-17 | 2007-10-16 | Bryant Clyde C | Internal combustion engine and working cycle |
| JP2009222060A (en) * | 2008-03-13 | 2009-10-01 | Man Diesel Se | Exchanging (scavenging) method for combustion gas of two stroke engine |
-
1987
- 1987-04-24 JP JP6282387U patent/JPH0619807Y2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7222614B2 (en) | 1996-07-17 | 2007-05-29 | Bryant Clyde C | Internal combustion engine and working cycle |
| US7281527B1 (en) | 1996-07-17 | 2007-10-16 | Bryant Clyde C | Internal combustion engine and working cycle |
| US7201121B2 (en) | 2002-02-04 | 2007-04-10 | Caterpillar Inc | Combustion engine including fluidically-driven engine valve actuator |
| US7178492B2 (en) | 2002-05-14 | 2007-02-20 | Caterpillar Inc | Air and fuel supply system for combustion engine |
| US7191743B2 (en) | 2002-05-14 | 2007-03-20 | Caterpillar Inc | Air and fuel supply system for a combustion engine |
| US7204213B2 (en) | 2002-05-14 | 2007-04-17 | Caterpillar Inc | Air and fuel supply system for combustion engine |
| US7252054B2 (en) | 2002-05-14 | 2007-08-07 | Caterpillar Inc | Combustion engine including cam phase-shifting |
| JP2009222060A (en) * | 2008-03-13 | 2009-10-01 | Man Diesel Se | Exchanging (scavenging) method for combustion gas of two stroke engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619807Y2 (en) | 1994-05-25 |
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