JPH0417138U - - Google Patents
Info
- Publication number
- JPH0417138U JPH0417138U JP5644690U JP5644690U JPH0417138U JP H0417138 U JPH0417138 U JP H0417138U JP 5644690 U JP5644690 U JP 5644690U JP 5644690 U JP5644690 U JP 5644690U JP H0417138 U JPH0417138 U JP H0417138U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- valve
- intake
- internal combustion
- combustion engine
- 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 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Exhaust Silencers (AREA)
- Characterised By The Charging Evacuation (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図は本考案の実施例の縦断面図、第２図は
排気系の略図、第３図は弁開閉線図、第４図は特
性線図、第５図は他の実施例の平面図、第６図ａ
，ｂはカムの側面図である。
７，２８……排気口、８……吸気弁、９，２６
……排気弁、１１ｂ，３１……２度開けカム、１
２……排気管、１６……マフラ、２０……制御弁
。
Fig. 1 is a longitudinal sectional view of an embodiment of the present invention, Fig. 2 is a schematic diagram of the exhaust system, Fig. 3 is a valve opening/closing diagram, Fig. 4 is a characteristic diagram, and Fig. 5 is a plan view of another embodiment. Figure 6a
, b are side views of the cam. 7, 28...Exhaust port, 8...Intake valve, 9,26
...Exhaust valve, 11b, 31...Double open cam, 1
2...exhaust pipe, 16...muffler, 20...control valve.
Claims (1)
気終期と吸気初期にオーバラツプして開放される
吸気弁と排気弁を備え、かつオーバラツプ後の吸
気行程中に排気弁を短期間開放する２度開けカム
を備え、排気口に排気管及び消音器を備える排気
系を接続した内燃機関において、排気管からマフ
ラ出口までの間の排気通路に、機関の運転状況に
応じて該排気通路の断面積を可変とする制御弁を
設けたことを特徴とする内燃機関の排気装置。 A double-open cam that is equipped with an intake valve and an exhaust valve that open and close in synchronization with the rotation of the crankshaft, and that are opened overlappingly at the end of exhaust and at the beginning of intake, and that opens the exhaust valve for a short period of time during the intake stroke after the overlap. In an internal combustion engine that is equipped with an exhaust system that includes an exhaust pipe and a muffler connected to the exhaust port, the cross-sectional area of the exhaust passage between the exhaust pipe and the muffler outlet can be varied according to the operating conditions of the engine. An exhaust system for an internal combustion engine, characterized in that it is provided with a control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5644690U JPH0417138U (en) | 1990-05-31 | 1990-05-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5644690U JPH0417138U (en) | 1990-05-31 | 1990-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0417138U true JPH0417138U (en) | 1992-02-13 |
Family
ID=31580277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5644690U Pending JPH0417138U (en) | 1990-05-31 | 1990-05-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417138U (en) |
-
1990
- 1990-05-31 JP JP5644690U patent/JPH0417138U/ja active Pending