JPS6415749U - - Google Patents
Info
- Publication number
- JPS6415749U JPS6415749U JP10940187U JP10940187U JPS6415749U JP S6415749 U JPS6415749 U JP S6415749U JP 10940187 U JP10940187 U JP 10940187U JP 10940187 U JP10940187 U JP 10940187U JP S6415749 U JPS6415749 U JP S6415749U
- Authority
- JP
- Japan
- Prior art keywords
- supercharger
- rotation speed
- slope
- determination means
- speed sensor
- 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
- 238000002485 combustion reaction Methods 0.000 claims 2
- 230000005856 abnormality Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 239000000446 fuel Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Supercharger (AREA)
Description
第１図は本考案の過給機の診断装置を備えたデ
イーゼルエンジンの模式図、第２図は上記デイー
ゼルエンジン停止時における過給機回転数の時間
変化を示す図、第３図は上記診断装置の処理の流
れを示すフローチヤートである。
１……デイーゼルエンジン、２……過給機、３
……回転数センサ、４……コンピユータ、５……
表示装置。
Fig. 1 is a schematic diagram of a diesel engine equipped with the supercharger diagnostic device of the present invention, Fig. 2 is a diagram showing the change in supercharger rotation speed over time when the diesel engine is stopped, and Fig. 3 is a diagram showing the above-mentioned diagnosis. 3 is a flowchart showing the process flow of the device. 1... Diesel engine, 2... Supercharger, 3
...Rotation speed sensor, 4...Computer, 5...
Display device.
Claims (1)
ーで給気を過給する過給機の診断装置であつて、 上記過給機の回転数を検出する回転数センサと
、内燃機関の停止動作開始から一定時間経過後の
上記回転数センサの検出信号で表わされる過給機
の回転数を所定の基準回転数と比較する回転数判
別手段と、上記回転数の上記一定時間よりも後の
所定時間内の勾配を所定の基準勾配と比較する勾
配判別手段とを備えて、上記回転数センサと勾配
判別手段の判別結果によつて過給機や燃料供給系
の異常を機関停止時において診断し得るようにし
たことを特徴とする過給機の診断装置。[Scope of Claim for Utility Model Registration] A diagnostic device for a supercharger that drives a turbine with the exhaust gas of an internal combustion engine and supercharges air supply with a blower, the rotational speed sensor detecting the rotational speed of the supercharger. and a rotation speed determination means for comparing the rotation speed of the supercharger represented by the detection signal of the rotation speed sensor after a predetermined period of time has elapsed from the start of the stopping operation of the internal combustion engine with a predetermined reference rotation speed; slope determination means for comparing the slope within a predetermined time period after a certain time period with a predetermined reference slope, and detects an abnormality in the supercharger or fuel supply system based on the determination result of the rotation speed sensor and the slope determination means. A diagnostic device for a supercharger, characterized in that it is capable of diagnosing when the engine is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10940187U JPH0338437Y2 (en) | 1987-07-16 | 1987-07-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10940187U JPH0338437Y2 (en) | 1987-07-16 | 1987-07-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6415749U true JPS6415749U (en) | 1989-01-26 |
| JPH0338437Y2 JPH0338437Y2 (en) | 1991-08-14 |
Family
ID=31345610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10940187U Expired JPH0338437Y2 (en) | 1987-07-16 | 1987-07-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0338437Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022202426A1 (en) * | 2021-03-25 | 2022-09-29 | 三菱重工マリンマシナリ株式会社 | Supercharger abnormality sign determination device and supercharger abnormality sign determination method |
| WO2022202431A1 (en) * | 2021-03-25 | 2022-09-29 | 三菱重工マリンマシナリ株式会社 | Supercharger abnormality determination device and supercharger abnormality determination method |
-
1987
- 1987-07-16 JP JP10940187U patent/JPH0338437Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022202426A1 (en) * | 2021-03-25 | 2022-09-29 | 三菱重工マリンマシナリ株式会社 | Supercharger abnormality sign determination device and supercharger abnormality sign determination method |
| WO2022202431A1 (en) * | 2021-03-25 | 2022-09-29 | 三菱重工マリンマシナリ株式会社 | Supercharger abnormality determination device and supercharger abnormality determination method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0338437Y2 (en) | 1991-08-14 |
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