JPH0267034U - - Google Patents
Info
- Publication number
- JPH0267034U JPH0267034U JP14656188U JP14656188U JPH0267034U JP H0267034 U JPH0267034 U JP H0267034U JP 14656188 U JP14656188 U JP 14656188U JP 14656188 U JP14656188 U JP 14656188U JP H0267034 U JPH0267034 U JP H0267034U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- resonance
- stage
- turbocharger
- pressure
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Supercharger (AREA)
- Characterised By The Charging Evacuation (AREA)
Description
第１図は本考案に係る、吸気共鳴装置を備えた
４気筒エンジンの２段過給装置の全体概略構成図
、第２図は本考案の効果を示す図、第３図は排気
制御弁を駆動する装置の一例を示す縦断面図であ
る。
１……エンジン、２……排気マニホルド、３…
…高圧段ターボチヤージヤ、４……高圧段排気タ
ービン、５……高圧段コンプレツサ、６……低圧
段ターボチヤージヤ、１０……排気制御弁、１１
……高圧段排気バイパス通路、１２……排気通路
、１６……吸気通路、１８……高圧段吸気バイパ
ス通路、１９……吸気制御弁、３０……吸気共鳴
装置、３１……吸気共鳴容器、３２……等価共鳴
容器、３３……吸気共鳴管、３４……等価共鳴管
。
Fig. 1 is an overall schematic configuration diagram of a two-stage supercharging system for a four-cylinder engine equipped with an intake resonance device according to the present invention, Fig. 2 is a diagram showing the effects of the present invention, and Fig. 3 is a diagram showing an exhaust control valve. It is a longitudinal cross-sectional view showing an example of a driving device. 1...Engine, 2...Exhaust manifold, 3...
...High pressure stage turbocharger, 4...High pressure stage exhaust turbine, 5...High pressure stage compressor, 6...Low pressure stage turbocharger, 10...Exhaust control valve, 11
...High pressure stage exhaust bypass passage, 12...Exhaust passage, 16...Intake passage, 18...High pressure stage intake bypass passage, 19...Intake control valve, 30...Intake resonance device, 31...Intake resonance container, 32... Equivalent resonance vessel, 33... Intake resonance tube, 34... Equivalent resonance tube.
Claims (1)
ージヤと、該低圧段ターボチヤージヤで過給され
た空気を更に過給し吸気通路を介してエンジンに
送る小容量の高圧段ターボチヤージヤとを有する
、４気筒エンジンの２段過給装置において、上記
高圧段ターボチヤージヤの排気タービンを迂回す
る高圧段排気バイパス通路に排気制御弁を、上記
高圧段ターボチヤージヤのコンプレツサを迂回す
る高圧段吸気バイパス通路に吸気制御弁をそれぞ
れ設け、所定エンジン運転状態時に上記排気及び
吸気制御弁を全開状態にすることにより、上記低
圧段及び高圧段ターボチヤージヤによる２段過給
から低圧段ターボチヤージヤによる１段過給に実
質的に切り替わるようにすると共に、エンジンの
４つの気筒の各吸入口と連通する吸気共鳴容器と
、等価共鳴容器と、上記吸気通路から分岐しそれ
ぞれ吸気共鳴容器及び等価共鳴容器に過給気を供
給する吸気共鳴管及び等価共鳴管、とを有する吸
気共鳴装置を配設し、該吸気共鳴装置の共鳴回転
数を上記過給切り替え時におけるエンジン回転数
より低く設定したことを特徴とする、吸気共鳴装
置を備えた４気筒エンジンの２段過給装置。 A four-cylinder engine that has a large-capacity low-pressure turbocharger that supercharges intake air, and a small-capacity high-pressure turbocharger that further supercharges the air supercharged by the low-pressure turbocharger and sends it to the engine via an intake passage. In the two-stage supercharging device, an exhaust control valve is provided in a high-pressure stage exhaust bypass passage that bypasses an exhaust turbine of the high-pressure stage turbocharger, and an intake control valve is provided in a high-pressure stage intake bypass passage that bypasses a compressor of the high-pressure stage turbocharger. By fully opening the exhaust and intake control valves during a predetermined engine operating state, the two-stage supercharging by the low-pressure stage and high-pressure stage turbochargers is substantially switched to the one-stage supercharging by the low-pressure stage turbocharger, and , an intake resonance container that communicates with the intake ports of each of the four cylinders of the engine, an equivalent resonance container, and an intake resonance pipe and equivalent resonance that branch from the intake passage and supply supercharging air to the intake resonance container and the equivalent resonance container, respectively. A four-cylinder engine equipped with an intake resonance device, characterized in that an intake resonance device having an intake resonance device is disposed, and the resonance rotation speed of the intake resonance device is set lower than the engine rotation speed at the time of supercharging switching. 2-stage supercharging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14656188U JPH0267034U (en) | 1988-11-11 | 1988-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14656188U JPH0267034U (en) | 1988-11-11 | 1988-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0267034U true JPH0267034U (en) | 1990-05-21 |
Family
ID=31416168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14656188U Pending JPH0267034U (en) | 1988-11-11 | 1988-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0267034U (en) |
-
1988
- 1988-11-11 JP JP14656188U patent/JPH0267034U/ja active Pending
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