JPH01139066U - - Google Patents
Info
- Publication number
- JPH01139066U JPH01139066U JP3617088U JP3617088U JPH01139066U JP H01139066 U JPH01139066 U JP H01139066U JP 3617088 U JP3617088 U JP 3617088U JP 3617088 U JP3617088 U JP 3617088U JP H01139066 U JPH01139066 U JP H01139066U
- Authority
- JP
- Japan
- Prior art keywords
- egr
- passage
- solenoid valve
- egr cooler
- air
- 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 description 5
- 238000001514 detection method Methods 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000004071 soot Substances 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Description
第１図は本考案の第１実施例に係る内燃機関の
ＥＧＲ装置の構成図、第２図は同ＥＧＲ装置のフ
ローチヤート図、第３図は付着すす量とＥＧＲク
ーラ前後の圧力差の関係を示す説明図、第４図は
本考案の第２実施例に係る内燃機関のＥＧＲ装置
の構成図、第５図は従来における内燃機関のＥＧ
Ｒ装置の構成図である。
Ｅ……エンジン、１……吸気通路、２……排気
通路、３……ＥＧＲ通路、４……ＥＧＲクーラ、
６Ａ，６Ｂ……圧力センサ、７……ノズル、８…
…電磁弁、９……空気圧力源、１０……制御装置
。
Figure 1 is a block diagram of an EGR system for an internal combustion engine according to the first embodiment of the present invention, Figure 2 is a flowchart of the EGR system, and Figure 3 is the relationship between the amount of soot deposited and the pressure difference before and after the EGR cooler. FIG. 4 is a configuration diagram of an EGR device for an internal combustion engine according to a second embodiment of the present invention, and FIG. 5 is an explanatory diagram showing a conventional EGR system for an internal combustion engine
It is a block diagram of R apparatus. E... Engine, 1... Intake passage, 2... Exhaust passage, 3... EGR passage, 4... EGR cooler,
6A, 6B...Pressure sensor, 7...Nozzle, 8...
... Solenoid valve, 9 ... Air pressure source, 10 ... Control device.
Claims (1)
ＥＧＲ通路にＥＧＲクーラを介装した内燃機関の
ＥＧＲ装置において、ＥＧＲ通路中に設けられた
ＥＧＲクーラの目詰検出手段と、空気圧力源から
電磁弁を介して空気が供給されてＥＧＲ通路途中
のＥＧＲクーラの上流側に開口するノズルと、目
詰検出手段からの信号によりＥＧＲクーラが目詰
状態にあるとき電磁弁が開くように出力する制御
装置とを備えていることを特徴とする内燃機関の
ＥＧＲ装置。 Connect the exhaust passage and intake passage with the EGR passage,
In an EGR system for an internal combustion engine in which an EGR cooler is installed in the EGR passage, air is supplied from an air pressure source via a solenoid valve to a clogging detection means for the EGR cooler provided in the EGR passage, and air is supplied from an air pressure source through a solenoid valve. An internal combustion engine comprising: a nozzle that opens upstream of an EGR cooler; and a control device that outputs an output to open a solenoid valve when the EGR cooler is clogged based on a signal from a clogging detection means. EGR device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3617088U JPH01139066U (en) | 1988-03-18 | 1988-03-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3617088U JPH01139066U (en) | 1988-03-18 | 1988-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01139066U true JPH01139066U (en) | 1989-09-22 |
Family
ID=31262786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3617088U Pending JPH01139066U (en) | 1988-03-18 | 1988-03-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01139066U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007154676A (en) * | 2005-11-30 | 2007-06-21 | Mitsubishi Fuso Truck & Bus Corp | Sensor cleaning device for engine |
| JP2016109089A (en) * | 2014-12-09 | 2016-06-20 | 株式会社日本自動車部品総合研究所 | Purge device |
-
1988
- 1988-03-18 JP JP3617088U patent/JPH01139066U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007154676A (en) * | 2005-11-30 | 2007-06-21 | Mitsubishi Fuso Truck & Bus Corp | Sensor cleaning device for engine |
| JP2016109089A (en) * | 2014-12-09 | 2016-06-20 | 株式会社日本自動車部品総合研究所 | Purge device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01139066U (en) | ||
| JPH0246058U (en) | ||
| JPS63138415U (en) | ||
| JPH0447154U (en) | ||
| JPH01136666U (en) | ||
| JPH03114545U (en) | ||
| JPH0434451U (en) | ||
| JPH01102437U (en) | ||
| JPS6158650U (en) | ||
| JPH0243448U (en) | ||
| JPS6149023U (en) | ||
| JPH0476957U (en) | ||
| JPH0421717U (en) | ||
| JPH02101065U (en) | ||
| JPH0213170U (en) | ||
| JPS6382020U (en) | ||
| JPH038612U (en) | ||
| JPH0246056U (en) | ||
| JPH0323641U (en) | ||
| JPS6147480U (en) | Exhaust gas recirculation device | |
| JPS58149523U (en) | Acceleration smoke reduction device for internal combustion engine with exhaust brake | |
| JPS61184811U (en) | ||
| JPS62117218U (en) | ||
| JPS61140128U (en) | ||
| JPS6451757U (en) |