JPH01318716A - Denitration method for exhaust of internal combustion engine - Google Patents
Denitration method for exhaust of internal combustion engineInfo
- Publication number
- JPH01318716A JPH01318716A JP63148010A JP14801088A JPH01318716A JP H01318716 A JPH01318716 A JP H01318716A JP 63148010 A JP63148010 A JP 63148010A JP 14801088 A JP14801088 A JP 14801088A JP H01318716 A JPH01318716 A JP H01318716A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- ammonia
- valve
- injection valve
- opening
- 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 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 114
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 56
- 239000007789 gas Substances 0.000 claims abstract description 33
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002243 precursor Substances 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 abstract description 29
- 239000007924 injection Substances 0.000 abstract description 29
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 230000000630 rising effect Effects 0.000 abstract 1
- 230000002000 scavenging effect Effects 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
- F02B47/04—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being other than water or steam only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Treating Waste Gases (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、内燃機関の排気中の酸化窒素の分解すること
により無公害化する内燃機関の排気脱硝方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for denitrifying exhaust gas from an internal combustion engine, which makes the exhaust gas of an internal combustion engine non-polluting by decomposing nitrogen oxides in the exhaust gas.
従来の内燃機関では、第４図に示すように、工／ジン１
０１から排出された排気は、排気管１０２゜排気過給機
１０３を経て、排気管後部１０４に流入し、排ガス温度
が比較的低い２５０〜４５０℃程度のこの部分で排ガス
中にアンモニア噴射弁１０５より噴射されるアンモニア
（ＮＨ３）が注入され、反応器１０８の触媒上で排気中
の窒素酸化物が分解されて無公害化されている。なお、
第４図中１０６はアンモニアポンプ、１０７はアンモニ
アポン＜、 １０９は給気管である。In a conventional internal combustion engine, as shown in Fig. 4,
The exhaust gas discharged from 01 passes through the exhaust pipe 102 and the exhaust supercharger 103, and then flows into the rear part of the exhaust pipe 104, where the exhaust gas temperature is relatively low at about 250 to 450°C. Ammonia (NH3) is injected into the exhaust gas, and nitrogen oxides in the exhaust gas are decomposed on the catalyst in the reactor 108, making the exhaust gas non-polluting. In addition,
In FIG. 4, 106 is an ammonia pump, 107 is an ammonia pump, and 109 is an air supply pipe.
上記公知の方法では、触媒を使用しているために、装置
が大きくなると同時にコストが上昇する。In the above-mentioned known method, the use of a catalyst increases the size of the equipment and the cost.
本発明は、アンモニア又はその前駆物質を直接高温の排
ガスへ混入することによって、上記の欠点を解消した内
燃機関の排気脱硝方法を提供しようとするものである。The present invention aims to provide a method for denitrating exhaust gas from an internal combustion engine, which eliminates the above-mentioned drawbacks by directly mixing ammonia or its precursor into high-temperature exhaust gas.
本発明では、アンモニア及び／又は尿素等のアンモニア
前駆物質を排気弁の開弁直前において内燃機関のシリン
ダ内のガスへ混入し、又は排気弁開弁直後において排気
弁から排出される排ガスへ混入する。In the present invention, an ammonia precursor such as ammonia and/or urea is mixed into the gas in the cylinder of an internal combustion engine immediately before the exhaust valve is opened, or into the exhaust gas discharged from the exhaust valve immediately after the exhaust valve is opened. .
排気弁の開弁直前の内燃機関のシリンダ内のガス及び、
排気弁開弁直後の時期で排気弁に近い排気管内等にある
燃焼排ガスは高温（１０００〜８００℃程度）であるた
めに、酸素の存在下（空気過剰率１．３〜２．０）で、
アンモニア及び／又はアンモニア前駆物質と排ガス中の
窒素酸化物は反応し、分解される。これによって、触媒
は不要となるか、又はその使用量を減することができる
。The gas in the cylinder of the internal combustion engine immediately before the exhaust valve opens, and
Immediately after the exhaust valve is opened, the combustion exhaust gas in the exhaust pipe near the exhaust valve is at a high temperature (approximately 1000 to 800°C), so it is heated in the presence of oxygen (excess air ratio 1.3 to 2.0). ,
Ammonia and/or an ammonia precursor react with nitrogen oxides in the exhaust gas and are decomposed. This eliminates the need for a catalyst or reduces its usage.
第１図は、大形低速２サイクルデイーゼルエンジンに適
用された本発明の第一の実施例を示す。FIG. 1 shows a first embodiment of the present invention applied to a large, low-speed, two-stroke diesel engine.
ｌはピストン、２はシリンダ、３はシリンダヘット９．
４は排気ポート、５は排気弁、６は排気集合管、７は燃
料噴射弁、８はシリンダヘラｒ３に設けられシリンダ２
内にアンモニアを噴射するアンモニア噴射弁、９はアン
モニア噴射用のポンプ。l is the piston, 2 is the cylinder, 3 is the cylinder head9.
4 is an exhaust port, 5 is an exhaust valve, 6 is an exhaust manifold, 7 is a fuel injection valve, 8 is provided in the cylinder spatula r3, and the cylinder 2
An ammonia injection valve injects ammonia into the tank, and 9 is a pump for ammonia injection.
１０はアンモニアボンベ、 １１はアンモニア噴射弁の
開弁コントローラ、１２は開弁時期を検知するクランク
角度センサ、１３はシリンダ２に設けられた掃気孔であ
る。上記クランク角度センナＬの出力は上記開弁コント
ローラ１１に入力されるようになっている。10 is an ammonia cylinder, 11 is a valve opening controller for an ammonia injection valve, 12 is a crank angle sensor that detects the valve opening timing, and 13 is a scavenging hole provided in the cylinder 2. The output of the crank angle sensor L is input to the valve opening controller 11.
本実施例では、排気弁の開弁する（５°〜１０’ＣＡ）
前にアンモニア噴射弁８を開弁するようにクランク角度
センサ１２によりクランク角度を検出し、これによって
アンモニア噴射弁８の開弁コントロー２１１を作動させ
てアンモニア噴射弁８を開弁する。In this example, the exhaust valve is opened (5° to 10' CA).
Before opening the ammonia injection valve 8, the crank angle is detected by the crank angle sensor 12, and thereby the valve opening control 211 of the ammonia injection valve 8 is operated to open the ammonia injection valve 8.
アンモニア噴射弁８は、掃気孔１３が開く前の排気弁５
の開弁後３５℃Ａ〜４０’ＣＡまでの期間開弁状態に保
持され、シリンダ２内へアンモニアを噴射する。The ammonia injection valve 8 is the exhaust valve 5 before the scavenging hole 13 is opened.
After the valve is opened, the valve is kept open for a period of 35°C to 40'CA, and ammonia is injected into the cylinder 2.
本実施例では、以上のように、掃気空気が混入しないた
めに高温なシリンダ２内のガス中に、排気弁５の開弁直
前から掃気孔１３の開口前迄の期間噴射弁８からアンモ
ニアを噴射して混入することによって、高温のガス中の
酸化窒素は酸素の存在下で分解され無害化される。In this embodiment, as described above, ammonia is injected from the injection valve 8 into the gas in the cylinder 2, which is hot because scavenging air is not mixed in, from just before the exhaust valve 5 opens until before the scavenging hole 13 opens. By injecting and mixing, the nitrogen oxide in the hot gas is decomposed and rendered harmless in the presence of oxygen.
第２図は、本実施例における排気弁の開弁時期。FIG. 2 shows the opening timing of the exhaust valve in this embodiment.
掃気孔の開孔時期とアンモニア噴射弁の開弁時期の相対
的関係を示している。It shows the relative relationship between the opening timing of the scavenging hole and the opening timing of the ammonia injection valve.
第３図は、大形低速２サイクルデイーゼルエンジンに適
用された本発明の第二の実施例を示す。FIG. 3 shows a second embodiment of the invention applied to a large, low-speed, two-stroke diesel engine.
Ｏｌはピストン、０２はシリンダ、０３はシリンダヘッ
ド、０４は排気ポート、０５は排気弁、０６は排気集合
管、０７は燃料噴射弁、０８は排気ポート−と排気集合
管０７との連結部に設けられ排気弁０５に向って排気ポ
ート０４内にアンモニアを噴射するアンモニア噴射弁、
０９はアンモニア噴射用のポンプ。Ol is the piston, 02 is the cylinder, 03 is the cylinder head, 04 is the exhaust port, 05 is the exhaust valve, 06 is the exhaust manifold, 07 is the fuel injection valve, 08 is the connection between the exhaust port and the exhaust manifold pipe 07. an ammonia injection valve that is provided and injects ammonia into the exhaust port 04 toward the exhaust valve 05;
09 is a pump for ammonia injection.
０１０はアンモニアボンベ、０１１はアンモニア噴射弁
の開弁コントロー、）、 ０１２は開弁時期を検知す
るクランク角度センサ、１３は掃気孔を示している。010 is an ammonia cylinder, 011 is an ammonia injection valve opening controller, ), 012 is a crank angle sensor that detects the valve opening timing, and 13 is a scavenging hole.
上記角度センサ０１２の出力は上記開弁コントローニア
０１１ Ｋ入力されるようになっている。The output of the angle sensor 012 is inputted to the valve opening controller 011K.
本実施例では、排気弁０５の開弁する５°〜１ｏ″ＣＡ
前にアンモニア噴射弁０８を開弁するように、クランク
角度センサ１２よりクランク角度を検知して、アンモニ
ア噴射弁の開弁コントローラ０１１を作用させてアンモ
ニア噴射弁０８を開弁する。同アンモニア噴射弁０８は
、掃気孔０１３の開口する前の排気弁の開弁後３５″’
ＣＡ〜４０℃Ａまでの期間開弁状態に保持され、排気弁
０５に近い排気ポート０４内へ排気弁側へ向ってアンモ
ニアを噴射する。In this embodiment, the exhaust valve 05 is opened from 5° to 1o'' CA
In order to open the ammonia injection valve 08 before, the crank angle is detected by the crank angle sensor 12, and the ammonia injection valve opening controller 011 is operated to open the ammonia injection valve 08. The ammonia injection valve 08 is 35''' after the exhaust valve is opened before the scavenging hole 013 is opened.
The valve is kept open for a period from CA to 40°C, and ammonia is injected into the exhaust port 04 near the exhaust valve 05 toward the exhaust valve side.
本実施例におけるアンモニア噴射弁の開弁、排気弁の開
弁、掃気ポートの開孔時期との相対的な関係は第一の実
施例の場合と同様である。In this embodiment, the relative relationship between the ammonia injection valve opening, the exhaust valve opening, and the scavenging port opening timing is the same as in the first embodiment.
本実施例は、以上のように排気ポート０４に噴出され掃
気空気が混入されないために高温に保たれている排ガス
中にアンモニアをアンモニア噴射弁０８から噴射して混
入させることによって、高温排ガス中の酸化窒素は酸素
の存在下で分解され無害化される。In this embodiment, ammonia is injected from the ammonia injection valve 08 and mixed into the exhaust gas which is injected into the exhaust port 04 and kept at a high temperature so that scavenging air is not mixed in as described above. Nitric oxide is decomposed and rendered harmless in the presence of oxygen.
本実施例では、排気弁０５の開弁する直前から排気弁０
５の開弁時をへて掃気孔０１３の開口する前の期間中ア
ンモニア噴射弁０８が開弁状態に保たれているが、本発
明で排気弁から排出される排ガスにアンモニアを噴射混
入させる場合は、少くとも高温の排ガスが排出される排
気弁の開弁直後においてアンモニアを排ガスへ混入させ
ることが必要である。In this embodiment, the exhaust valve 0 starts immediately before the exhaust valve 05 opens.
Although the ammonia injection valve 08 is kept open during the period before the scavenging hole 013 opens after the opening time of step 5, when ammonia is injected and mixed into the exhaust gas discharged from the exhaust valve in the present invention. It is necessary to mix ammonia into the exhaust gas at least immediately after opening the exhaust valve from which high-temperature exhaust gas is discharged.
以上本発明の実施例について説明したが、本発明は単に
大形低速２サイクルディーゼルエンジンに適用されるに
止まらず、中速４サイクルエンジン、高速２サイクル、
４サイクルエンジン、圧縮着火エンジン、火花点火エン
ジン等内燃機関に広く適用可能である。Although the embodiments of the present invention have been described above, the present invention is not only applied to large, low-speed 2-stroke diesel engines, but also medium-speed 4-stroke engines, high-speed 2-stroke engines,
It is widely applicable to internal combustion engines such as 4-stroke engines, compression ignition engines, and spark ignition engines.
ただ、アンモニアと窒素酸化物の反応にある程度時間が
必要であるために、本発明は、排気過程に時間が充分あ
る、中低速エンジンに用いて特に有効である。However, since a certain amount of time is required for the reaction between ammonia and nitrogen oxides, the present invention is particularly effective for use in medium and low speed engines where there is sufficient time for the exhaust process.
また１本発明には、アンモニアだけでなく分解して、ア
ンモニアを生成する尿素などのアンモニア前駆物質を使
用することができると共に１両者を併用することもでき
る。Furthermore, in the present invention, not only ammonia but also an ammonia precursor such as urea that decomposes to produce ammonia can be used, and both can be used in combination.
排気弁の開弁前のシリンダ内のガス又は排気弁開弁直後
排ガスは温度が高い（１，０００℃〜８００℃程度）が
、本発明では、この時に上記ガス又は排ガスにアンモニ
ア又はその前駆物質を混入することによって、酸素の存
在下でアンモニアとガス又は排ガス中の窒素酸化物を反
応させることができ、触媒なしで窒素酸化物を分解する
ことができ、また排気管後部等に設置する触媒の使用量
を低減することができる。The gas in the cylinder before the exhaust valve is opened or the exhaust gas immediately after the exhaust valve is opened has a high temperature (approximately 1,000°C to 800°C), but in the present invention, ammonia or its precursor is added to the gas or exhaust gas at this time. By mixing ammonia with nitrogen oxides in gas or exhaust gas in the presence of oxygen, it is possible to decompose nitrogen oxides without a catalyst. can reduce the usage amount.
第１図は大形低速２サイクルデイーゼルエンジンに適用
した本発明の第一の実施例の説明図、第２図は同実施例
におけるアンモニア噴射弁、排気弁及び掃気孔の開弁、
閉弁時期の相対的関係を示す説明図、第３図は大形低速
２サイクルデイーゼルエンジンに適用した本発明の第二
の実施例の説明図、第４図は従来の内燃機関の排気脱硝
方法の説明図である。
１．０１・・・ピストン、 ２．０２・・・シ
リンダ。
３．０３・・・シリンダヘラ）”、 ４．０４・・・
排気ポート。
５．０５・・・排気弁、 ６．０６・・・排
気集合管。
７．０７・・・燃料噴射弁、 ８．０８・・・ア
ンモニア噴射弁。
９．０９・・・アンモニア噴射用ポンプ。
１０．０１０・・・アンモニアボンば。
１１．０１１・・・アンモニア噴射弁の開弁コントロー
九１２．０１２・・・開弁時期を検知するクランク角度
センナ。
１３．０１３・・・掃気孔。FIG. 1 is an explanatory diagram of the first embodiment of the present invention applied to a large, low-speed two-stroke diesel engine, and FIG. 2 shows the opening of the ammonia injection valve, exhaust valve, and scavenging hole in the same embodiment.
An explanatory diagram showing the relative relationship between valve closing timings, Fig. 3 is an explanatory diagram of the second embodiment of the present invention applied to a large, low-speed two-stroke diesel engine, and Fig. 4 is a conventional exhaust gas denitrification method for an internal combustion engine. FIG. 1.01...Piston, 2.02...Cylinder. 3.03...Cylinder spatula)", 4.04...
exhaust port. 5.05...Exhaust valve, 6.06...Exhaust collecting pipe. 7.07...Fuel injection valve, 8.08...Ammonia injection valve. 9.09...Ammonia injection pump. 10.010...Ammonia bomb. 11.011... Ammonia injection valve opening control 912.012... Crank angle sensor that detects the valve opening timing. 13.013...Scavenging hole.
Claims (1)
又はその前駆物質を混入し、又は排気弁開弁直後に排ガ
スへアンモニア及び／又はその前駆物質を混入して排気
中の酸化窒素を分解させることを特徴とする内燃機関の
排気脱硝方法。Immediately before the exhaust valve opens, ammonia and/or
An exhaust gas denitrification method for an internal combustion engine, characterized in that nitrogen oxides in the exhaust are decomposed by mixing ammonia or its precursor, or by mixing ammonia and/or its precursor into exhaust gas immediately after opening an exhaust valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63148010A JPH01318716A (en) | 1988-06-17 | 1988-06-17 | Denitration method for exhaust of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63148010A JPH01318716A (en) | 1988-06-17 | 1988-06-17 | Denitration method for exhaust of internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01318716A true JPH01318716A (en) | 1989-12-25 |
Family
ID=15443085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63148010A Pending JPH01318716A (en) | 1988-06-17 | 1988-06-17 | Denitration method for exhaust of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01318716A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04246273A (en) * | 1991-01-31 | 1992-09-02 | Mitsubishi Motors Corp | Diesel engine for low environmental pollution |
| EP0527362A1 (en) * | 1991-08-13 | 1993-02-17 | MAN B & W Diesel Aktiengesellschaft | Method and device for reducing nitrogen oxide emissions from internal combustion engines |
| WO1995006805A1 (en) * | 1993-08-30 | 1995-03-09 | Platinum Plus, Inc. | The reduction of nitrogen oxides emissions from diesel engines |
| WO2006048120A1 (en) * | 2004-11-03 | 2006-05-11 | Daimlerchrysler Ag | Method for operating an internal combustion engine with an scr catalyst |
| JP2008128047A (en) * | 2006-11-17 | 2008-06-05 | Mitsubishi Motors Corp | Exhaust gas purification device |
| WO2009081227A1 (en) * | 2007-12-20 | 2009-07-02 | Renault Trucks | Six-stroke internal combustion engine, method of operation of such an engine and vehicle equipped with such an engine |
| JP2009264369A (en) * | 2008-04-04 | 2009-11-12 | Masao Masuyama | Heat engine |
| EP2426327A1 (en) * | 2009-04-28 | 2012-03-07 | Toyota Jidosha Kabushiki Kaisha | Exhaust emission control device for engine |
| WO2012077627A1 (en) * | 2010-12-09 | 2012-06-14 | 日立造船株式会社 | Two-stroke engine and four-stroke engine |
| JP2013113178A (en) * | 2011-11-28 | 2013-06-10 | Masao Masuyama | Heat engine |
| JP2013155639A (en) * | 2012-01-27 | 2013-08-15 | Ihi Corp | NOx REMOVAL DEVICE |
| KR101648671B1 (en) * | 2015-06-10 | 2016-08-23 | 서울대학교산학협력단 | Pre-combustion Ammonia Engine and the Method for Reducing Exhaust thereof |
| CN106014601A (en) * | 2012-04-11 | 2016-10-12 | 三菱重工业株式会社 | 2-cycle gas engine and fule gas injection system used by engine |
| CN109488452A (en) * | 2018-09-28 | 2019-03-19 | 唐心昱 | There is no the spark ignition type two-stroke internal combustion engine of compression stroke |
| EP3670878A1 (en) * | 2018-12-19 | 2020-06-24 | Winterthur Gas & Diesel Ltd. | Internal combustion engine |
| EP3936713A4 (en) * | 2019-03-08 | 2022-10-26 | JFE Engineering Corporation | Diesel engine |
| WO2022254735A1 (en) * | 2021-06-03 | 2022-12-08 | 株式会社三井Ｅ＆Ｓマシナリー | Apparatus and method for processing excess ammonia |
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| JPH04246273A (en) * | 1991-01-31 | 1992-09-02 | Mitsubishi Motors Corp | Diesel engine for low environmental pollution |
| EP0527362A1 (en) * | 1991-08-13 | 1993-02-17 | MAN B & W Diesel Aktiengesellschaft | Method and device for reducing nitrogen oxide emissions from internal combustion engines |
| DE4126705A1 (en) * | 1991-08-13 | 1993-02-18 | Man B & W Diesel Ag | METHOD AND DEVICE FOR REDUCING THE NITROGEN EMISSIONS OF COMBUSTION ENGINES |
| WO1995006805A1 (en) * | 1993-08-30 | 1995-03-09 | Platinum Plus, Inc. | The reduction of nitrogen oxides emissions from diesel engines |
| US5404841A (en) * | 1993-08-30 | 1995-04-11 | Valentine; James M. | Reduction of nitrogen oxides emissions from diesel engines |
| US5535708A (en) * | 1993-08-30 | 1996-07-16 | Platinum Plus, Inc. | Reduction of nitrogen oxides emissions from diesel engines |
| WO2006048120A1 (en) * | 2004-11-03 | 2006-05-11 | Daimlerchrysler Ag | Method for operating an internal combustion engine with an scr catalyst |
| JP2008128047A (en) * | 2006-11-17 | 2008-06-05 | Mitsubishi Motors Corp | Exhaust gas purification device |
| JP4696288B2 (en) * | 2006-11-17 | 2011-06-08 | 三菱自動車工業株式会社 | Exhaust purification device |
| WO2009081227A1 (en) * | 2007-12-20 | 2009-07-02 | Renault Trucks | Six-stroke internal combustion engine, method of operation of such an engine and vehicle equipped with such an engine |
| JP2009264369A (en) * | 2008-04-04 | 2009-11-12 | Masao Masuyama | Heat engine |
| EP2426327A1 (en) * | 2009-04-28 | 2012-03-07 | Toyota Jidosha Kabushiki Kaisha | Exhaust emission control device for engine |
| EP2426327A4 (en) * | 2009-04-28 | 2013-07-24 | Toyota Motor Co Ltd | Exhaust emission control device for engine |
| WO2012077627A1 (en) * | 2010-12-09 | 2012-06-14 | 日立造船株式会社 | Two-stroke engine and four-stroke engine |
| JP2012122423A (en) * | 2010-12-09 | 2012-06-28 | Hitachi Zosen Corp | Two-stroke engine and four-stroke engine |
| CN103249939A (en) * | 2010-12-09 | 2013-08-14 | 日立造船株式会社 | Two-stroke engine and four-stroke engine |
| US9404412B2 (en) | 2010-12-09 | 2016-08-02 | Hitachi Zosen Corporation | Two-stroke engine and four-stroke engine |
| JP2013113178A (en) * | 2011-11-28 | 2013-06-10 | Masao Masuyama | Heat engine |
| JP2013155639A (en) * | 2012-01-27 | 2013-08-15 | Ihi Corp | NOx REMOVAL DEVICE |
| CN106014601A (en) * | 2012-04-11 | 2016-10-12 | 三菱重工业株式会社 | 2-cycle gas engine and fule gas injection system used by engine |
| CN106014601B (en) * | 2012-04-11 | 2019-06-04 | 三菱重工业株式会社 | The fuel gas spraying system of two-stroke gas engine and the engine |
| KR101648671B1 (en) * | 2015-06-10 | 2016-08-23 | 서울대학교산학협력단 | Pre-combustion Ammonia Engine and the Method for Reducing Exhaust thereof |
| CN109488452A (en) * | 2018-09-28 | 2019-03-19 | 唐心昱 | There is no the spark ignition type two-stroke internal combustion engine of compression stroke |
| EP3670878A1 (en) * | 2018-12-19 | 2020-06-24 | Winterthur Gas & Diesel Ltd. | Internal combustion engine |
| CN111335988A (en) * | 2018-12-19 | 2020-06-26 | 温特图尔汽柴油公司 | Internal combustion engine |
| EP3936713A4 (en) * | 2019-03-08 | 2022-10-26 | JFE Engineering Corporation | Diesel engine |
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