CN103362605B - Internal combustion engine - Google Patents
Internal combustion engine Download PDFInfo
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- CN103362605B CN103362605B CN201210174571.8A CN201210174571A CN103362605B CN 103362605 B CN103362605 B CN 103362605B CN 201210174571 A CN201210174571 A CN 201210174571A CN 103362605 B CN103362605 B CN 103362605B
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- exhaust gas
- bypass pipeline
- internal combustion
- combustion engine
- particulate filter
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- 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
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- Exhaust Gas After Treatment (AREA)
- Supercharger (AREA)
Abstract
Internal combustion engine, especially utilize heavy oil to drive marine diesel oil internal combustion engine, its have realize by least one exhaust gas turbocharger (11,24), the exhaust gas turbocharge device of one-level at least, and it has the waste gas purification apparatus of realizing by particulate filter (14) and SCR catalyst converter (15), it also has the hydrolysis catalyst (17) being positioned at together with reducing agent dosing mechanism (16) in exhaust gas bypass pipeline (18), the waste gas streams that wherein passes through described exhaust gas bypass pipeline (18) can pass through adjusting device (19) and regulate, it is characterized in that, the exhaust gas bypass pipeline (18) that is built-in with described reducing agent dosing mechanism (16) and hydrolysis catalyst (17) is at least laid around described particulate filter (14), thereby can in the situation that at least walking around described particulate filter (14), guide waste gas towards described SCR catalyst converter (15) by described exhaust gas bypass pipeline (18).
Description
Technical field
The present invention relates to a kind of internal combustion engine.
Background technology
Document DE102004027593A1 discloses a kind of internal combustion engine of the waste gas purification apparatus that has one-level or secondary exhaust gas turbocharge device and realize by SCR catalyst converter. For one-level exhaust gas turbocharge device, according to prior art, SCR catalyst converter or be positioned at the downstream of the turbine of exhaust gas turbocharger, or be positioned at the upstream of the turbine of exhaust gas turbocharger. For the secondary exhaust gas turbocharge device with two exhaust gas turbochargers, according to prior art, SCR catalyst converter is connected between two turbines of two exhaust gas turbochargers or after being connected to two turbines of two exhaust gas turbochargers. In addition, from known in the state of the art, walk around described SCR catalyst converter by bypass duct, to guide waste gas on the side of SCR catalyst converter towards the turbine in the downstream that is positioned at SCR catalyst converter. Waste gas streams by this by-pass line can regulate by adjusting device.
Document DE102007061005A1 discloses another kind of internal combustion engine. According to prior art, this internal combustion engine comprises exhaust gas turbocharger equally, wherein the waste gas of the turbine of this exhaust gas turbocharger of process is conducted through oxidation catalyzer subsequently, after this oxidation catalyzer, pass through particulate filter, then pass through SCR catalyst converter, and after this SCR catalyst converter, pass through another oxidation catalyzer. In addition, from known in the state of the art, can guide waste gas with the side of the oxidation catalyzer that is arranged in described turbine downstream towards particulate filter at the turbine of exhaust gas turbocharger by exhaust gas bypass pipeline, wherein, reducing agent dosing mechanism (Reduktionsmitteldosiereinrichtung) and hydrolysis catalyst are arranged in described by-pass line.
Summary of the invention
Set out and the object of the invention is to thus, a kind of novel internal combustion engine is provided. This object is by being achieved by internal combustion engine of the present invention. According to the present invention, the exhaust gas bypass pipeline that is built-in with reducing agent dosing mechanism and hydrolysis catalyst is at least laid around particulate filter, thereby can at least in the situation that walking around particulate filter, guide waste gas towards SCR catalyst converter by described exhaust gas bypass pipeline.
First the present invention proposes so a kind of internal combustion engine, and its exhaust gas bypass pipeline that is built-in with reducing agent dosing mechanism and hydrolysis catalyst is at least laid around particulate filter. Can at least guide waste gas on particulate filter side towards SCR catalyst converter thus, described waste gas guides by exhaust gas bypass pipeline and then by reducing agent dosing mechanism and hydrolysis catalyst. Can improve thus the efficiency of SCR catalyst converter. In addition the fork being produced by particulate filter,, simplified the waste gas of the exhaust gas bypass pipeline through being built-in with reducing agent dosing mechanism and hydrolysis catalyst for the back pressure (Gegendruck) of waste gas streams.
Preferably can be on the one hand in the situation that at least getting around particulate filter by another exhaust gas bypass pipeline, and in the situation that getting around reducing agent dosing mechanism and hydrolysis catalyst, guide waste gas towards SCR catalyst converter on the other hand, wherein can regulate by another adjusting device through the waste gas streams of described another exhaust gas bypass pipeline. Can realize the further raising of the efficiency of SCR catalyst converter by described another exhaust gas bypass pipeline, described another exhaust gas bypass pipeline of utilization not only can at least be walked around particulate filter but also can walk around reducing agent dosing mechanism and hydrolysis catalyst.
According to a kind of favourable improvement project of the present invention, pressurized air can be from the compressor of each exhaust gas turbocharger, imports in the exhaust gas bypass pipeline that is built-in with reducing agent dosing mechanism and hydrolysis catalyst, that is to say the upstream that imports to reducing agent dosing mechanism and hydrolysis catalyst by pressurized air by-pass line. By means of the pressurized air guiding by pressurized air by-pass line, the waste gas of the exhaust gas bypass pipeline guiding by being built-in with reducing agent dosing mechanism and hydrolysis catalyst can mix with pressurized air, to accurately regulate temperature by the waste gas of reducing agent dosing mechanism and hydrolysis catalyst guiding, improve the efficiency of reducing agent dosing mechanism and hydrolysis catalyst and then improve the efficiency of SCR catalyst converter.
Brief description of the drawings
Preferred improvement project of the present invention is drawn by application text context and ensuing explanation. By means of accompanying drawing, embodiments of the invention are explained in detail below, but the present invention is not limited only to this. Shown in the drawings:
Fig. 1 is according to the schematic diagram of the boosting internal combustion engine of the first embodiment of the present invention;
Fig. 2 is the schematic diagram of boosting internal combustion engine according to a second embodiment of the present invention;
Fig. 3 is the schematic diagram of the boosting internal combustion engine of a third embodiment in accordance with the invention;
Fig. 4 is the schematic diagram of the boosting internal combustion engine of a fourth embodiment in accordance with the invention;
Fig. 5 is the schematic diagram of boosting internal combustion engine according to a fifth embodiment of the invention;
Fig. 6 is the schematic diagram of boosting internal combustion engine according to a sixth embodiment of the invention;
Fig. 7 is the schematic diagram of boosting internal combustion engine according to a seventh embodiment of the invention;
Fig. 8 is according to the schematic diagram of the boosting internal combustion engine of the eighth embodiment of the present invention;
Fig. 9 is according to the schematic diagram of the boosting internal combustion engine of the ninth embodiment of the present invention;
Figure 10 is according to the schematic diagram of the boosting internal combustion engine of the tenth embodiment of the present invention.
Detailed description of the invention
The present invention relates to a kind of internal combustion engine, the marine diesel oil internal combustion engine that especially utilizes heavy oil to drive. The marine diesel oil internal combustion engine that utilizes heavy oil to drive has a feature: the fuel of its use, namely heavy oil has quite high sulfur content. Oxysulfide may cause producing sediment with less desirable reaction of ammonia, and described sediment can damage the efficiency of waste gas purification apparatus. This less desirable reaction especially occurs connectedly with lower temperature. This situation can be avoided in foundation internal combustion engine of the present invention.
Fig. 1 shows an embodiment of the internal combustion engine 10 with the one-level exhaust gas turbocharge device of realizing by exhaust gas turbocharger 11, and wherein turbine 12 and compressor 13 represent exhaust gas turbocharger 11. The waste gas of internal combustion engine step-down in turbine 12 are left in turbine 12 guiding by exhaust gas turbocharger 11, and wherein thus obtained energy is used to drive compression machine 13, so that the pressurized air of compression IC engine supply 10. Internal combustion engine 10 shown in Fig. 1 also has particulate filter 14 and SCR catalyst converter 15 in waste gas streams, and wherein in Fig. 1, particulate filter 14 is arranged in the downstream of turbine 12 and SCR catalyst converter 15 and is arranged in the downstream of particulate filter 14.
In addition, internal combustion engine shown in Fig. 1 has reducing agent dosing mechanism 16 and hydrolysis catalyst 17, they are all arranged in exhaust gas bypass pipeline 18, wherein in meaning of the present invention, the exhaust gas bypass pipeline 18 that is built-in with reducing agent dosing mechanism 16 and hydrolysis catalyst 17 is at least laid around particulate filter 14, thereby the waste gas that guides by exhaust gas bypass pipeline 18 and then by reducing agent dosing mechanism 16 and hydrolysis catalyst 17 can be guided towards SCR catalyst converter 15 in the situation that walking around particulate filter 14. The waste gas streams of the by-pass line 18 by being built-in with reducing agent dosing mechanism 16 and hydrolysis catalyst 17 can regulate by adjusting device 19.
Be positioned at hydrolysis catalyst 17 in by-pass line 18 impel that introduce by reducing agent dosing mechanism 16 in the waste gas streams guiding by exhaust gas bypass pipeline 18, for effective evaporation of the reducing agent of the SCR waste gas purification apparatus of SCR catalyst converter 15 and accelerate to transform, thereby can ensure effective operation of SCR catalyst converter 15. By reducing agent dosing mechanism 16 and hydrolysis catalyst 17 are positioned in the by-pass line 18 of walking around particulate filter 14, avoid particulate filter 14 due to the upstream metering reducing agent at particulate filter 14 and because sediment blocks. Therefore can improve the efficiency of particulate filter 14 and SCR catalyst converter 15 by the present invention.
Fig. 2 shows a kind of design according to internal combustion engine of the present invention, in this internal combustion engine, the by-pass line 18 that is built-in with reducing agent dosing mechanism 16 and hydrolysis catalyst 17 is not only around particulate clarifier 14 but also lay around the turbine 12 of exhaust gas catalyzer 11. Can guide thus waste gas not only on turbine 12 sides of exhaust gas turbocharger 11 but also in particulate filter 14 side processes, to reducing agent is incorporated in the waste gas guiding by this exhaust gas bypass pipeline 18, and guide by hydrolysis catalyst 17, and guide towards SCR catalyst converter subsequently.
In view of all the other details of the embodiment of Fig. 2 consistent with the embodiment of Fig. 1, therefore can be with reference to the detailed description to the embodiment shown in Fig. 1.
Fig. 3 shows a kind of improvement project of the embodiment shown in Fig. 2, in this scheme, except being built-in with the by-pass line 18 of reducing agent dosing mechanism 16 and hydrolysis catalyst 17, also there is another exhaust gas bypass pipeline 20, by this exhaust gas bypass pipeline can be on the one hand in the situation that walking around turbine 12 and particulate filter 14, and in the situation that walking around reducing agent dosing mechanism 16 and hydrolysis catalyst 17, guide waste gas towards SCR catalyst converter 15 on the other hand. Waste gas streams through described another exhaust gas bypass pipeline 20 can regulate by another adjusting device 21. By the waste gas volume flow to through two by-pass lines 18 and 20 and the fine adjustment of temperature, can further improve the efficiency of waste gas purification apparatus. By-pass line 20 shown in Fig. 3 also can use in the embodiment in figure 1, so wherein exhaust gas bypass pipeline 20 is connected in parallel and only walks around particulate filter 14 with exhaust gas bypass pipeline 18.
Fig. 4 shows the another kind of improvement project of the embodiment of Fig. 2, wherein in the embodiment of Fig. 4, pressurized air by pressurized air by-pass line 22 from compressor 13s, the upstream of the downstream of compressor 13 and internal combustion engine 10 from Fig. 4 namely, import in the by-pass line 18 that is built-in with reducing agent dosing mechanism 16 and hydrolysis catalyst 17, namely import to according to the upstream of the upstream of the reducing agent dosing mechanism 16 of Fig. 4 and hydrolysis catalyst 17. Charge air flow through this pressurized air by-pass line 22 can regulate by adjusting device 23. By pressurized air being mixed into via exhaust gas bypass pipeline 18 in the waste gas of particulate filter 14 side guiding, can be by the temperature fine adjustment of the waste gas guiding by exhaust gas bypass pipeline 18 to aspiration level. Can further improve thus the efficiency in the region of SCR catalyst converter 15 and then in the region of waste gas purification apparatus. In addition, also obtained so a kind of possibility, pressurized air can be used as dosage air (Dosierluft).
Fig. 5 shows a kind of embodiment of the present invention, described embodiment combines the feature of the embodiment shown in Fig. 3 and 4 mutually, in this embodiment, not only there is another exhaust gas bypass pipeline 20 but also have the pressurized air by-pass line 22 with corresponding adjusting device 21,23. This combination is particularly preferred for improving the efficiency of SCR catalyst converter 15, wherein this be it should be noted that, the application mode of the combination of this another exhaust gas bypass pipeline 20 and pressurized air by-pass line 22 also can be used in the embodiment shown in Fig. 1, in the embodiment shown in fig. 1, the by-pass line 18 that is built-in with reducing agent dosing mechanism 16 and hydrolysis catalyst 17 is only walked around particulate filter 14, and does not walk around the turbine 12 of exhaust gas turbocharger 11.
Embodiment shown in Fig. 6 is a kind of improvement project of the internal combustion engine 10 shown in Fig. 1, wherein be provided with the pressurized air by-pass line 22 with corresponding adjusting device 23, to pressurized air is transported to exhaust gas bypass pipeline 18 in the upstream of reducing agent dosing mechanism 16. Differently from the embodiment shown in Figure 4 and 5 at this be, in this improvement project, pressurized air is in the upstream of the compressor 13 of exhaust gas turbocharger 11, instead of as in Figure 4 and 5 illustrated embodiment in the downstream of the compressor 13 of exhaust gas turbocharger 11, guide towards exhaust gas bypass pipeline 18 by pressurized air by-pass line 22. But for pressurized air being imported in exhaust gas bypass pipeline 18 simplifiedly, preferably adopt the scheme of Figure 4 and 5, in described scheme, pressurized air is at the downstream of compressor 13 fork.
The common ground of Fig. 1 to Fig. 6 is that each internal combustion engine all has one-level exhaust gas turbocharge device. In contrast, the internal combustion engine in the embodiment shown in Fig. 7 to Figure 10 all has multistage that is secondary exhaust gas turbocharge device, wherein therefore except exhaust gas turbocharger 11 also exists another exhaust gas turbocharger 24 with turbine 25 and compressor 26.
The turbine 12 of exhaust gas turbocharger 11 is pressure turbines, and the turbine 25 of exhaust gas turbocharger 24 is low-pressure turbine. Correspondingly, the compressor 13 of exhaust gas turbocharger 11 is high pressure compressors, and the compressor 26 of exhaust gas turbocharger 24 is low pressure compressor.
In the embodiment shown in Fig. 7 to 9, particulate filter 14 and SCR catalyst converter 15 are positioned at respectively between two turbines 12 and 25 of two exhaust gas turbochargers 11 and 24, that is to say that SCR catalyst converter 15 is so positioned at the downstream of particulate filter 14 again.
In the internal combustion engine 10 shown in Fig. 7, the exhaust gas bypass pipeline 18 of built-in reducing agent dosing mechanism 16 and hydrolysis catalyst 17 is only walked around particulate filter 14.
Otherwise in Fig. 8, the exhaust gas bypass pipeline 18 of built-in reducing agent dosing mechanism 16 and hydrolysis catalyst 17 is not only walked around particulate filter 14, but also walk around turbine 12 exhaust gas turbocharger 11, that be used as pressure turbine. In Fig. 8, consistent with the embodiment shown in Figure 4 and 5, in order to regulate the temperature of the waste gas guiding by exhaust gas bypass pipeline 18, pressurized air can by exhaust gas turbocharger 11, be incorporated into exhaust gas bypass pipeline 18 as the pressurized air by-pass line 22 of the downstream fork of the compressor 13 of high pressure compressor work in and be incorporated in waste gas.
In the embodiment shown in fig. 9, namely in the improvement project of the embodiment shown in Fig. 8, additionally there is another exhaust gas bypass pipeline 20, not only can and can guide waste gas towards SCR catalyst converter 15 at reducing agent dosing mechanism 16 and hydrolysis catalyst 17 sides on pressure turbine 12 and particulate catalyst converter 14 sides by this exhaust gas bypass pipeline.
Certainly, also can between compressor, before compressor, diverge in other words according to the pressurized air by-pass line 22 of Fig. 8 and 9.
Figure 10 shows the another kind of embodiment of internal combustion engine 10, this internal combustion engine is with the secondary exhaust gas turbocharge device of realizing by two exhaust gas turbochargers 11 and 24, wherein differently from the embodiment shown in Fig. 7 to 9 be, particulate filter 14 and the SCR catalyst converter 15 that is arranged in particulate filter 14 downstreams are not to be arranged between two turbines 12 and 25, but be more precisely arranged in exhaust gas turbocharger 24, as the downstream of the turbine 25 of low-pressure turbine. At this, in Figure 10, the exhaust gas bypass pipeline 18 of built-in reducing agent dosing mechanism 16 and hydrolysis catalyst 17 is only walked around particulate filter 14 again. In contrast to this, by-pass line 18 also can so be constructed, thereby makes by-pass line 18 also can walk around the turbine 25 of turbocharger 24. Same other exhaust gas bypass pipeline 20 and the pressurized air by-pass line 22 of also can using in Figure 10, wherein, pressurized air by-pass line 22 can be in the downstream of compressor 26 or the downstream of compressor 13 make waste gas fork and waste gas can be transported to exhaust gas bypass pipeline 18, namely be transported to the upstream of reducing agent dosing mechanism 16.
The common ground of all embodiment is, can be at particulate filter 14 side guiding waste gas by exhaust gas bypass pipeline 18, so that guiding is passed through reducing agent dosing mechanism 16 and hydrolysis catalyst 17 at the waste gas of particulate filter 14 side processes, and imports to subsequently SCR catalyst converter 15. Can improve thus the efficiency of waste gas purification apparatus. Avoid on the one hand the obstruction of exhaust gas particle filter 14, can ensure on the other hand the effective conversion for the reducing agent of the SCR waste gas purification apparatus of SCR catalyst converter 15.
The reducing agent utilization of liquid is resolved into gaseous products completely to this optimum condition in bypass, and is just transmitted back to subsequently SCR catalyst converter, this reduced with heavy oil drive be associated, on SCR catalyst converter, form sedimentary risk. This means, for sulfurous fuels, can reduce the minimum serviceability temperature of SCR catalyst converter, and can make the temperature range of SCR operation become larger.
Reference numerals list
10 internal combustion engines
11 exhaust gas turbochargers
12 turbines
13 compressors
14 particulate filters
15SCR catalyst converter
16 reducing agent dosing mechanisms
17 hydrolysis catalysts
18 exhaust gas bypass pipelines
19 adjusting devices
20 exhaust gas bypass pipelines
21 adjusting devices
22 pressurized air by-pass lines
23 adjusting devices
24 exhaust gas turbochargers
25 turbines
26 compressors.
Claims (6)
1. internal combustion engine, have realize by least one exhaust gas turbocharger (11,24), the exhaust gas turbocharge device of one-level at least; And there is the waste gas purification apparatus of realizing by particulate filter (14) and SCR catalyst converter (15); also there is the hydrolysis catalyst (17) being positioned in exhaust gas bypass pipeline (18) together with reducing agent dosing mechanism (16), the waste gas streams that wherein passes through described exhaust gas bypass pipeline (18) can regulate by adjusting device, wherein, the exhaust gas bypass pipeline (18) that is built-in with described reducing agent dosing mechanism (16) and hydrolysis catalyst (17) is at least laid around described particulate filter (14), thereby can in the situation that at least walking around described particulate filter (14), guide waste gas towards described SCR catalyst converter (15) by described exhaust gas bypass pipeline (18), it is characterized in that, described internal combustion engine has another exhaust gas bypass pipeline (20), can be on the one hand in the situation that walking around described particulate filter (14) by described another exhaust gas bypass pipeline, in the situation that walking around described reducing agent dosing mechanism (16) and hydrolysis catalyst (17), guide waste gas towards described SCR catalyst converter on the other hand, wherein, waste gas streams through described another exhaust gas bypass pipeline can regulate by another adjusting device.
2. internal combustion engine according to claim 1, it is characterized in that, the exhaust gas bypass pipeline (18) that is built-in with described reducing agent dosing mechanism (16) and hydrolysis catalyst (17) is not only around described particulate filter (14) but also lay around the turbine (12) of described exhaust gas turbocharger, thereby can guide waste gas in the case of walking around the turbine of corresponding exhaust gas turbocharger (12) and particulate filter (14) towards described SCR catalyst converter (15) by described exhaust gas bypass pipeline (18).
3. internal combustion engine according to claim 1 and 2, it is characterized in that pressurized air by-pass line (22), by described pressurized air by-pass line pressurized air can from the compressor of corresponding exhaust gas turbocharger, (upstream that 13)s imported to and are built-in with the exhaust gas bypass pipeline (18) of described reducing agent dosing mechanism (16) and hydrolysis catalyst (17), namely import to described reducing agent dosing mechanism (16) and hydrolysis catalyst (17), the charge air flow of wherein passing through described pressurized air by-pass line (22) can regulate by adjusting device.
4. internal combustion engine according to claim 1 and 2, it is characterized in that multistage exhaust gas turbocharge device, wherein said particulate filter (14) and SCR catalyst converter (15) are connected between two turbines (12,25) of two exhaust gas turbochargers (11,24), are namely connected between pressure turbine and low-pressure turbine.
5. internal combustion engine according to claim 4, it is characterized in that, the exhaust gas bypass pipeline (18) that is built-in with described reducing agent dosing mechanism (16) and hydrolysis catalyst (17) is laid around described particulate filter (14) and the pressure turbine that is positioned at described particulate filter upstream.
6. internal combustion engine according to claim 1, is characterized in that, described internal combustion engine is the marine diesel oil internal combustion engine that utilizes heavy oil to drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210174571.8A CN103362605B (en) | 2012-03-30 | 2012-03-30 | Internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210174571.8A CN103362605B (en) | 2012-03-30 | 2012-03-30 | Internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103362605A CN103362605A (en) | 2013-10-23 |
| CN103362605B true CN103362605B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210174571.8A Expired - Fee Related CN103362605B (en) | 2012-03-30 | 2012-03-30 | Internal combustion engine |
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| Country | Link |
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| CN (1) | CN103362605B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2942504B1 (en) * | 2014-05-09 | 2018-11-07 | Winterthur Gas & Diesel AG | Reciprocating internal combustion engine and method for operating a reciprocating internal combustion engine |
| DE102017115408A1 (en) * | 2017-07-10 | 2019-01-10 | Volkswagen Aktiengesellschaft | Exhaust gas aftertreatment system and method for exhaust aftertreatment of an internal combustion engine |
| WO2020215303A1 (en) * | 2019-04-26 | 2020-10-29 | 潍柴动力股份有限公司 | Post-treatment system, method for controlling post-treatment system, and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039639A (en) * | 1988-07-19 | 1990-02-14 | 腓特烈港发动机及涡轮机联合股份公司 | The charged piston internal-combustion engine that several exhaust-gas turbochargers in parallel are arranged |
| CN1707075A (en) * | 2004-06-05 | 2005-12-14 | 曼·B及W柴油机公开股份有限公司 | Engine equipment with waste gas turbocharger and SCR catalytic device working |
| CN101462023A (en) * | 2007-12-18 | 2009-06-24 | 德国曼商用车辆股份公司 | Method for improving the hydrolysis of a reducing agent in a waste gas treatment system |
| DE102008032332A1 (en) * | 2008-02-11 | 2009-08-13 | Detroit Diesel Corp., Detroit | A method for protecting aftertreatment devices for selective catalytic reaction in uncontrolled diesel particulate filter regeneration |
| DE102009004418A1 (en) * | 2009-01-13 | 2010-07-15 | Man Nutzfahrzeuge Ag | A method for the aftertreatment of an exhaust gas stream of a multi-cylinder internal combustion engine of a vehicle and exhaust aftertreatment device |
| CN102071994A (en) * | 2009-11-19 | 2011-05-25 | 德国曼商用车辆股份公司 | Device for treating exhaust gases of combustion engines |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7805927B2 (en) * | 2003-06-17 | 2010-10-05 | Gm Global Technology Operations, Inc. | Diesel engine displacement on demand |
-
2012
- 2012-03-30 CN CN201210174571.8A patent/CN103362605B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039639A (en) * | 1988-07-19 | 1990-02-14 | 腓特烈港发动机及涡轮机联合股份公司 | The charged piston internal-combustion engine that several exhaust-gas turbochargers in parallel are arranged |
| CN1707075A (en) * | 2004-06-05 | 2005-12-14 | 曼·B及W柴油机公开股份有限公司 | Engine equipment with waste gas turbocharger and SCR catalytic device working |
| CN101462023A (en) * | 2007-12-18 | 2009-06-24 | 德国曼商用车辆股份公司 | Method for improving the hydrolysis of a reducing agent in a waste gas treatment system |
| DE102008032332A1 (en) * | 2008-02-11 | 2009-08-13 | Detroit Diesel Corp., Detroit | A method for protecting aftertreatment devices for selective catalytic reaction in uncontrolled diesel particulate filter regeneration |
| DE102009004418A1 (en) * | 2009-01-13 | 2010-07-15 | Man Nutzfahrzeuge Ag | A method for the aftertreatment of an exhaust gas stream of a multi-cylinder internal combustion engine of a vehicle and exhaust aftertreatment device |
| CN102071994A (en) * | 2009-11-19 | 2011-05-25 | 德国曼商用车辆股份公司 | Device for treating exhaust gases of combustion engines |
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| CN103362605A (en) | 2013-10-23 |
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