JPH0368516U - - Google Patents
Info
- Publication number
- JPH0368516U JPH0368516U JP12914589U JP12914589U JPH0368516U JP H0368516 U JPH0368516 U JP H0368516U JP 12914589 U JP12914589 U JP 12914589U JP 12914589 U JP12914589 U JP 12914589U JP H0368516 U JPH0368516 U JP H0368516U
- Authority
- JP
- Japan
- Prior art keywords
- supply passage
- fuel supply
- cylinder
- fuel
- fuel injection
- 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
- 239000000446 fuel Substances 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 229910021536 Zeolite Inorganic materials 0.000 claims 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims 1
- 229910000510 noble metal Inorganic materials 0.000 claims 1
- 229910052723 transition metal Inorganic materials 0.000 claims 1
- 150000003624 transition metals Chemical class 0.000 claims 1
- 239000010457 zeolite Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Exhaust Gas After Treatment (AREA)
Description
第１図は本考案に係るデイーゼル機関の排気浄
化システムの概略系統図、第２図は第１図の−
線に沿う断面図、第３図は第２図のリリーフ弁
近傍の拡大断面図、第４図はデイーゼル機関とそ
の吸、排気系の概略平面図、である。
１……燃料噴射ポンプ、２……燃料噴射ノズル
、３……燃料供給通路、４……リリーフ弁、５…
…連通路、６……スプリング、７……デイーゼル
機関、９……排気マニホルド、１０……リーンＮ
Ｏｘ触媒。
Figure 1 is a schematic system diagram of the diesel engine exhaust purification system according to the present invention, and Figure 2 is the same as that shown in Figure 1.
3 is an enlarged sectional view of the vicinity of the relief valve in FIG. 2, and FIG. 4 is a schematic plan view of the diesel engine and its intake and exhaust systems. DESCRIPTION OF SYMBOLS 1...Fuel injection pump, 2...Fuel injection nozzle, 3...Fuel supply passage, 4...Relief valve, 5...
...Communication path, 6...Spring, 7...Diesel engine, 9...Exhaust manifold, 10...Lean N
Ox catalyst.
Claims (1)
料供給通路の途中に、燃料噴射期間にある気筒へ
の燃料供給通路とそれと同時期に排気行程にある
気筒への燃料供給通路とを連通する連通路を設け
、該連通路に、燃料噴射期間にある気筒への燃料
供給通路内圧力が一定値を超えたときに、燃料噴
射期間にある気筒への燃料供給通路にある燃料の
一部を排気行程にある気筒への燃料供給通路にリ
リーフするリリーフ弁を設け、さらに排気系に、
貴金属もしくは遷移金属を担持せしめたゼオライ
ト系触媒を設けたことを特徴とするデイーゼル機
関の排気浄化システム。 In the middle of the fuel supply passage connecting the fuel injection pump and each fuel injection nozzle, there is a communication passage that communicates the fuel supply passage to the cylinder in the fuel injection period and the fuel supply passage to the cylinder in the exhaust stroke at the same time. is provided in the communication passage, and when the pressure in the fuel supply passage to the cylinder during the fuel injection period exceeds a certain value, part of the fuel in the fuel supply passage to the cylinder during the fuel injection period is removed during the exhaust stroke. A relief valve is installed in the fuel supply passage to the cylinder in the exhaust system, and a relief valve is installed in the exhaust system.
An exhaust purification system for a diesel engine characterized by having a zeolite-based catalyst supporting a noble metal or a transition metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989129145U JP2501542Y2 (en) | 1989-11-06 | 1989-11-06 | Exhaust gas purification system for diesel engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989129145U JP2501542Y2 (en) | 1989-11-06 | 1989-11-06 | Exhaust gas purification system for diesel engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0368516U true JPH0368516U (en) | 1991-07-05 |
| JP2501542Y2 JP2501542Y2 (en) | 1996-06-19 |
Family
ID=31676801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989129145U Expired - Lifetime JP2501542Y2 (en) | 1989-11-06 | 1989-11-06 | Exhaust gas purification system for diesel engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2501542Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8209965B2 (en) | 2007-09-14 | 2012-07-03 | Toyota Jidosha Kabushiki Kaisha | Additive-agent diffusion plate structure in exhaust passage, and additive-agent diffusion plate in exhaust passage |
| US8443595B2 (en) | 2007-09-07 | 2013-05-21 | Toyota Jidosha Kabushiki Kaisha | Additive-agent diffusion plate in exhaust passage, structure of additive-agent diffusion plate, and exhaust system including additive-agent diffusion plate |
| DE102008042536B4 (en) * | 2007-10-02 | 2013-07-04 | Toyota Jidosha Kabushiki Kaisha | Additive agent diffusion plate assembly in an exhaust passage |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2671606B2 (en) | 1990-12-27 | 1997-10-29 | トヨタ自動車株式会社 | Fuel injection controller for direct injection type internal combustion engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6338619U (en) * | 1986-08-29 | 1988-03-12 | ||
| JPS63283727A (en) * | 1987-04-17 | 1988-11-21 | バイエル・アクチエンゲゼルシヤフト | Method and apparatus for reducing nitrogen oxide |
-
1989
- 1989-11-06 JP JP1989129145U patent/JP2501542Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6338619U (en) * | 1986-08-29 | 1988-03-12 | ||
| JPS63283727A (en) * | 1987-04-17 | 1988-11-21 | バイエル・アクチエンゲゼルシヤフト | Method and apparatus for reducing nitrogen oxide |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8443595B2 (en) | 2007-09-07 | 2013-05-21 | Toyota Jidosha Kabushiki Kaisha | Additive-agent diffusion plate in exhaust passage, structure of additive-agent diffusion plate, and exhaust system including additive-agent diffusion plate |
| US8209965B2 (en) | 2007-09-14 | 2012-07-03 | Toyota Jidosha Kabushiki Kaisha | Additive-agent diffusion plate structure in exhaust passage, and additive-agent diffusion plate in exhaust passage |
| DE102008042536B4 (en) * | 2007-10-02 | 2013-07-04 | Toyota Jidosha Kabushiki Kaisha | Additive agent diffusion plate assembly in an exhaust passage |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2501542Y2 (en) | 1996-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |