JPH0278734U - - Google Patents
Info
- Publication number
- JPH0278734U JPH0278734U JP15556388U JP15556388U JPH0278734U JP H0278734 U JPH0278734 U JP H0278734U JP 15556388 U JP15556388 U JP 15556388U JP 15556388 U JP15556388 U JP 15556388U JP H0278734 U JPH0278734 U JP H0278734U
- Authority
- JP
- Japan
- Prior art keywords
- pressure stage
- pressure
- stage
- intake
- exhaust
- 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
Landscapes
- Supercharger (AREA)
Description
第１図は本考案の原理を説明するブロツク図、
第２図は本考案に係る二段ターボエンジンの異常
警報装置の一実施例の全体概略構成図、第３図は
排気制御弁を駆動する装置の縦断面図、第４図は
第２図に示す実施例装置の異常警報制御の作動を
示すフローチヤート図である。
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、７…低圧段タービン、８…低圧段コンプレツ
サ、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。
Figure 1 is a block diagram explaining the principle of the present invention.
Fig. 2 is an overall schematic diagram of an embodiment of an abnormality alarm system for a two-stage turbo engine according to the present invention, Fig. 3 is a vertical sectional view of a device that drives an exhaust control valve, and Fig. 4 is similar to Fig. 2. FIG. 2 is a flowchart showing the operation of abnormality alarm control of the embodiment shown in FIG. 1...Engine, 2...Exhaust manifold, 3...High pressure stage turbocharger, 4...High pressure stage turbine, 5...
High pressure stage compressor, 6...Low pressure stage turbocharger, 7...Low pressure stage turbine, 8...Low pressure stage compressor, 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.
Claims (1)
る低圧段及び高圧段コンプレツサが吸気通路にそ
れぞれ直列に配置された低圧段及び高圧段ターボ
チヤージヤを備え、上記高圧段タービンを迂回す
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二段過給から低圧段ターボチ
ヤージヤによる一段過給に実質的に切り替わるよ
うにした二段ターボエンジンにおいて、 上記吸気通路内の圧力状態を検出する圧力状態
検出手段と、エンジン運転状態を検出する運転状
態検出手段と、 このエンジン運転状態に対応する上記吸気通路
内の基本圧力状態を演算する基本圧力状態演算手
段と、 検出した圧力状態とこの基本圧力状態とを比較
し、異常信号を出力する比較手段と、 比較手段により出力される異常信号に基づき警
報を発する異常警報手段、 とを備えた二段ターボエンジンの異常警報装置
。[Claims for Utility Model Registration] A low-pressure stage and a high-pressure stage compressor corresponding to an exhaust passage are provided with a low-pressure stage and a high-pressure stage turbocharger arranged in series in the intake passage, respectively, and the high-pressure stage turbine An exhaust control valve is provided in a high-pressure stage exhaust bypass passage that bypasses the high-pressure stage compressor, and an intake control valve is provided in a high-pressure stage intake bypass passage that bypasses the high-pressure stage compressor, and the exhaust and intake control valves are fully opened during a predetermined engine operating state. In this two-stage turbo engine, 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, the pressure state detection means for detecting the pressure state in the intake passage. an operating state detecting means for detecting an engine operating state; a basic pressure state calculating means for calculating a basic pressure state in the intake passage corresponding to this engine operating state; An abnormality warning device for a two-stage turbo engine, comprising: comparing means for comparing and outputting an abnormal signal; and abnormality warning means for issuing an alarm based on the abnormal signal output by the comparing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15556388U JPH0278734U (en) | 1988-12-01 | 1988-12-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15556388U JPH0278734U (en) | 1988-12-01 | 1988-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0278734U true JPH0278734U (en) | 1990-06-18 |
Family
ID=31433301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15556388U Pending JPH0278734U (en) | 1988-12-01 | 1988-12-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0278734U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011007456A1 (en) * | 2009-07-16 | 2011-01-20 | トヨタ自動車株式会社 | Control valve abnormality determining device for internal combustion engine |
| WO2011007455A1 (en) * | 2009-07-16 | 2011-01-20 | トヨタ自動車株式会社 | Device for determining abnormality of control valve in internal combustion engine |
| JP2011099338A (en) * | 2009-11-04 | 2011-05-19 | Toyota Motor Corp | Control valve abnormality determining device for internal combustion engine |
-
1988
- 1988-12-01 JP JP15556388U patent/JPH0278734U/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011007456A1 (en) * | 2009-07-16 | 2011-01-20 | トヨタ自動車株式会社 | Control valve abnormality determining device for internal combustion engine |
| WO2011007455A1 (en) * | 2009-07-16 | 2011-01-20 | トヨタ自動車株式会社 | Device for determining abnormality of control valve in internal combustion engine |
| JP5051301B2 (en) * | 2009-07-16 | 2012-10-17 | トヨタ自動車株式会社 | Control valve abnormality determination device for internal combustion engine |
| US8522551B2 (en) | 2009-07-16 | 2013-09-03 | Toyota Jidosha Kabushiki Kaisha | Apparatus for determining an abnormality of a control valve of an internal combustion engine |
| JP2011099338A (en) * | 2009-11-04 | 2011-05-19 | Toyota Motor Corp | Control valve abnormality determining device for internal combustion engine |
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