CN111894766A - Vehicle system with low-pressure EGR loop - Google Patents
Vehicle system with low-pressure EGR loop Download PDFInfo
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- CN111894766A CN111894766A CN202010732297.6A CN202010732297A CN111894766A CN 111894766 A CN111894766 A CN 111894766A CN 202010732297 A CN202010732297 A CN 202010732297A CN 111894766 A CN111894766 A CN 111894766A
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- pressure egr
- low
- gas
- dpf
- vehicle system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/07—Mixed pressure loops, i.e. wherein recirculated exhaust gas is either taken out upstream of the turbine and reintroduced upstream of the compressor, or is taken out downstream of the turbine and reintroduced downstream of the compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/24—Layout, e.g. schematics with two or more coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention discloses a vehicle system with a low-pressure EGR loop, belonging to the technical field of engine exhaust gas recirculation, comprising: the engine is connected with an air inlet manifold and an exhaust manifold, and is connected with the compressor through the air inlet manifold and connected with the turbine through the exhaust manifold. The low-pressure EGR return circuit, it gets waste gas after the whirlpool of turbine to handle and obtain the reburning degree of sintering gas to waste gas, the low-pressure EGR return circuit will reburn the degree of sintering gas and carry the compressor, and will reburn the degree of sintering gas and carry the engine in via the compressor and carry and burn once more. The invention has the beneficial effects that: the vehicle system comprises a low-pressure EGR loop which takes gas from the rear of a turbine and does not pass through an after-treatment system, so that the problem of pipeline arrangement caused by taking gas from the rear of the turbine and needing to pass through the after-treatment system is solved, and meanwhile, the problems of tail gas energy reduction caused by the fact that waste gas flows through a DPF and economic deterioration caused by the fact that a back pressure valve is installed are solved.
Description
Technical Field
The invention relates to the technical field of engine exhaust gas recirculation, in particular to a vehicle system with a low-pressure EGR loop.
Background
At present, the main technologies for effectively reducing nitrogen oxides of internal combustion engines are SCR (Selective catalytic reduction, short for Selective catalytic reduction) and EGR (Exhaust Gas Re-circulation, short for Exhaust Gas recirculation), wherein the EGR technology introduces Exhaust Gas discharged from an internal combustion engine into an engine to participate in combustion again, and plays a role in reducing oxygen concentration and combustion temperature, thereby reducing the generation of nitrogen oxides.
The existing EGR technology is mainly divided into a high-pressure EGR technology and a low-pressure EGR technology: the high-pressure EGR technology is that waste gas is taken from the front of the turbine of the turbocharger of the engine, the waste gas returns to the air inlet pipe of the engine through an EGR cooler, an EGR valve and other components, is mixed with fresh inlet air and then is introduced into a transmitter to participate in combustion again; the low-pressure EGR technology generally takes exhaust gas from an after-treatment system after the turbine of an engine turbocharger, the exhaust gas is mixed with fresh intake air before returning to an engine compressor through an EGR cooler, an EGR valve and other components, and the mixed gas returns to an engine intake pipe and is then introduced into a transmitter to participate in combustion again.
Chinese patent (application publication No. CN102338004A) discloses a low-pressure EGR control using throttling, in which, in order to avoid the impact of particulate matters in Exhaust Gas on blades of a compressor 36 (i.e. a compressor), a Gas taking position of a low-pressure EGR system needs to pass through a DPF (Diesel particulate filter), which is a part of EGP, and a current vehicle aftertreatment system is generally referred to as EGP (Exhaust Gas Processor).
That is, the gas intake position of the current low-pressure EGR system needs to pass through the vehicle aftertreatment system, and considering that the vehicle aftertreatment system is far away from the engine, the low-pressure EGR pipeline for taking gas from the aftertreatment system brings great difficulty to the arrangement of the exhaust pipeline of the vehicle system.
In addition, the exhaust energy is reduced after throttling by the DPF in the aftertreatment system. In addition, in order to achieve a low-pressure EGR rate, the system needs to install an exhaust throttle valve 50 (i.e., a backpressure valve) at the end of the exhaust pipe, and the pressure is adjusted by the backpressure valve, so that the exhaust gas flows to the low-pressure EGR system instead of directly flowing out through the exhaust pipe, but the exhaust throttle valve 50 raises the overall backpressure of the engine, which directly causes serious deterioration of the economy of the engine.
Therefore, there is a need to solve the above technical problems of the current vehicle systems.
Disclosure of Invention
In view of the problems in the prior art, it is an object of the present invention to provide a vehicle system having a low pressure EGR loop that takes gas from behind a turbine without passing through an aftertreatment system, thereby avoiding the problem of piping arrangement caused by taking gas from behind the turbine and needing to pass through the aftertreatment system, and simultaneously avoiding the problem of energy reduction of exhaust gas caused by exhaust gas flowing through a DPF and the problem of economic deterioration caused by installing a back pressure valve.
The invention adopts the following technical scheme:
a vehicle system having a low pressure EGR loop, comprising:
the engine is connected with an air inlet manifold and an exhaust manifold, the engine is connected with the air compressor through the air inlet manifold and is connected with the turbine through the exhaust manifold;
the low-pressure EGR return circuit, it gets waste gas after the whirlpool of turbine to handle and obtain the reburning degree of sintering gas to waste gas, the low-pressure EGR return circuit will reburn the degree of sintering gas and carry the compressor, and will reburn the degree of sintering gas and carry the engine in via the compressor and carry and burn once more.
Preferably, the low-pressure EGR loop comprises a low-pressure EGR pipeline connected between the turbine and the compressor, and the low-pressure EGR pipeline is provided with a first DPF, a low-pressure EGR valve connected with the first DPF, and a low-pressure EGR cooler connected with the low-pressure EGR valve;
get waste gas after the vortex of low pressure EGR return circuit follow turbine through first DPF, handle by first DPF and obtain the reburning degree gas to waste gas to will reburn through the low pressure EGR cooler and connect the gas to the compressor.
Preferably, the vehicle system further includes:
and the air inlet pipeline is connected with the air compressor and used for conveying standard combustion gas to the air compressor, and the air compressor conveys the mixture of the low-pressure EGR loop-processed reburning sintered gas and the standard combustion gas into the engine for reburning.
Preferably, the vehicle system further includes:
the particulate matter regeneration loop comprises a regeneration pipeline connected with the turbine, wherein a regeneration valve, a first DPF connected with the regeneration valve and an EGP connected with the first DPF are arranged on the regeneration pipeline;
the particulate matter regeneration circuit takes exhaust gas from the turbine ahead of the turbine through the first DPF to clean the particulate matter clogged in the first DPF with the high temperature of the exhaust gas.
Preferably, the EGP comprises a second DPF;
the particulate matter regeneration loop delivers exhaust gas through the first DPF to the EGP to clean clogged particulate matter in the second DPF from the high temperature of the exhaust gas.
Preferably, the vehicle system further includes:
and the gas outlet pipeline is connected with the EGP and is used for outputting the exhaust gas treated by the first DPF and the second DPF.
Preferably, at the same time, only one of the low-pressure EGR valve and the regeneration valve is opened.
Preferably, the vehicle system further comprises an EGR mixer connected to the intake manifold.
Preferably, the vehicle system further comprises an intake intercooler connecting the compressor and the EGR mixer;
the reburning gas output by the compressor enters the engine through the intake intercooler, the EGR mixer and the intake manifold in sequence.
Preferably, the vehicle system further includes:
the high-pressure EGR loop comprises a high-pressure EGR pipeline connected between the exhaust manifold and the intake manifold, and the high-pressure EGR pipeline is provided with a high-pressure EGR valve, a high-pressure EGR cooler, an EGR one-way valve and an EGR mixer;
the exhaust gas output by the exhaust manifold enters the engine through the high-pressure EGR valve, the high-pressure EGR cooler, the EGR one-way valve, the EGR mixer and the intake manifold in sequence.
The invention has the beneficial effects that: on the basis of a traditional high-pressure EGR engine, exhaust gas is led out after the turbine passes through a first DPF, a low-pressure EGR valve and a low-pressure EGR cooler and enters a pipeline in front of a compressor to form a low-pressure EGR loop, and the exhaust gas treated by the low-pressure EGR loop is led out before EGP to bypass the EGP, so that the problem of pipeline arrangement caused by gas taking from the EGP is solved, and meanwhile, the problem of tail gas energy reduction caused by the fact that the exhaust gas treated by the low-pressure EGR loop in the prior art needs to flow through the DPF in advance and the problem of economic deterioration caused by a back pressure valve are solved.
High-temperature waste gas is led out before the vortex of the turbine, the high-temperature waste gas is led out through the regeneration valve and the first DPF and reaches the EGP, and the high-temperature waste gas is used for cleaning particles blocked inside the second DPF in the first DPF and the EGP, so that the cleaning efficiency of the first DPF and the second DPF is guaranteed, and the waste gas utilization rate is improved.
Drawings
FIG. 1 is a schematic diagram of a vehicle system having a low pressure EGR loop in accordance with a preferred embodiment of the present invention.
Reference numbers in the figures:
1-an engine; 2-low pressure EGR line; 3-a turbine; 4-a first DPF; 5-a low pressure EGR valve; 6-low pressure EGR cooler; 7, an air compressor; 8-air inlet intercooling; 9-an EGR mixer; 10-EGP; 11-high pressure EGR line; 12-a high pressure EGR valve; 13-a high pressure EGR cooler; 14-EGR check valve; 15-an intake manifold; 16-an exhaust manifold; 17-a regeneration valve; 18-an air intake line; 19-gas outlet pipeline.
Detailed Description
In the following embodiments, the technical features may be combined with each other without conflict.
The following further describes embodiments of the present invention with reference to the drawings:
as shown in fig. 1, the present invention provides a vehicle system having a low-pressure EGR circuit, including an engine 1 and a low-pressure EGR circuit. The engine 1 is connected with an air inlet manifold 15 and an exhaust manifold 16, the engine 1 is connected with the compressor 7 through the air inlet manifold 15, and is connected with the turbine 3 through the exhaust manifold 16. Get the waste gas behind the vortex of low pressure EGR return circuit from turbine 3 to handle and obtain the piece of sintering of.
The low-pressure EGR loop directly takes the waste gas from the vortex of the turbine 3 without passing through an after-treatment system, thereby avoiding the problem of pipeline arrangement caused by taking the gas from the after-treatment system. Meanwhile, the problem of tail gas energy reduction caused by the fact that waste gas treated by a low-pressure EGR loop needs to flow through an after-treatment system in advance in the prior art is solved, and the problem of economic deterioration caused by the fact that a back pressure valve needs to be installed is solved. Further, the low pressure EGR loop includes a low pressure EGR line 2 connected between the turbine 3 and the compressor 7, and the low pressure EGR line 2 is provided with a first DPF4, a low pressure EGR valve 5 connected to the first DPF4, and a low pressure EGR cooler 6 connected to the low pressure EGR valve 5.
The low pressure EGR return circuit gets waste gas through first DPF4 after the whirlpool of turbine 3, is handled by first DPF4 to waste gas and is obtained the refiring and connect the body, opens EGR valve 5 (at this moment, regeneration valve 17 is in the closed condition all the time), will reburn through low pressure EGR cooler 6 and connect the body to the compressor 7. The first DPF4 is used for filtering large particulate matter and the like in the exhaust gas, which may cause damage to the blades of the compressor 7.
Further, the vehicle system further includes:
and the air inlet pipeline 18 is connected with the compressor 7 and used for conveying standard combustion gas to the compressor 7, and the compressor 7 conveys the mixture of the reburning sintered gas obtained by the low-pressure EGR loop treatment and the standard combustion gas into the engine 1 for reburning.
Further, the vehicle system further includes:
and the particulate matter regeneration loop comprises a regeneration pipeline connected with the turbine 3, wherein a regeneration valve 17, a first DPF4 connected with the regeneration valve 17 and an EGP 10 connected with the first DPF4 are arranged on the regeneration pipeline.
The particulate matter regeneration circuit takes exhaust gas from before the vortex of the turbine 3 through the first DPF4 to perform a cleaning process of the particulate matter clogged in the first DPF4 by using the high temperature of the exhaust gas.
The first DPF4 needs to be regenerated from its internal particulate matter after a long period of use. The low pressure EGR valve 5 on the low pressure EGR loop is closed and the regeneration valve 17 is opened, and the high temperature exhaust gas passes through the regeneration valve 17 and then passes through the first DPF4 to reach the front pipeline of the EGP 10.
When the regeneration process of the first DPF4 is carried out, the waste gas does not reach the front of the compressor 7 any more, so that the service life of the compressor 7 is prevented from being influenced by overhigh temperature, and meanwhile, the corrosion of pollutants to compressed air and 7 blades is avoided.
Further, the EGP 10 includes a second DPF (not shown).
The particulate matter regeneration loop conveys exhaust gas to the EGP 10 through the first DPF4, so that the blocked particulate matter in the second DPF is cleaned by using the high temperature of the exhaust gas, and the second DPF in the EGP 10 can be regenerated.
Further, the vehicle system further includes:
and the gas outlet pipeline 19 is connected with the EGP 10 and is used for outputting the exhaust gas treated by the first DPF4 and the second DPF.
Further, at the same time, the low-pressure EGR valve 5 and the regeneration valve 17 are opened only one.
Further, the vehicle system further includes an EGR mixer 9 connected to the intake manifold 15.
Further, the vehicle system further comprises an intake intercooler 8 connecting the compressor 7 and the EGR mixer 9.
The reburning gas output by the compressor 7 enters the engine 1 through an intake intercooler 8, an EGR mixer 9 and an intake manifold 15 in sequence.
Further, the vehicle system further includes:
and a high-pressure EGR circuit which comprises a high-pressure EGR pipeline 11 connected between an exhaust manifold 16 and an intake manifold 15, wherein the high-pressure EGR pipeline 11 is provided with a high-pressure EGR valve 12, a high-pressure EGR cooler 13, an EGR one-way valve 14 and an EGR mixer 9.
The exhaust gas output from the exhaust manifold 16 is introduced into the engine 1 via the high-pressure EGR valve 12, the high-pressure EGR cooler 13, the EGR check valve 14, the EGR mixer 9, and the intake manifold 15 in this order.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention.
Claims (10)
1. A vehicle system having a low pressure EGR loop, comprising:
the engine (1) is connected with an air inlet manifold (15) and an exhaust manifold (16), the engine (1) is connected with the compressor (7) through the air inlet manifold (15) and is connected with the turbine (3) through the exhaust manifold (16);
the low-pressure EGR return circuit gets waste gas after the whirlpool of turbine (3) to handle the piece of sintering of obtaining the sintering of burning, the low-pressure EGR return circuit will sinter the sintering of.
2. The vehicle system with low-pressure EGR loop according to claim 1, characterized in that the low-pressure EGR loop comprises a low-pressure EGR line (2) connected between the turbine (3) and the compressor (7), the low-pressure EGR line (2) being provided with a first DPF (4), a low-pressure EGR valve (5) connected to the first DPF (4), a low-pressure EGR cooler (6) connected to the low-pressure EGR valve (5);
the low-pressure EGR loop takes exhaust gas from the vortex of the turbine (3) through the first DPF (4), the exhaust gas is treated through the first DPF (4) to obtain the reburning sintered gas, and the reburning sintered gas is conveyed to the gas compressor (7) through the low-pressure EGR cooler (6).
3. The vehicle system with a low-pressure EGR loop of claim 2, further comprising:
and the air inlet pipeline (18) is connected with the air compressor (7) and is used for conveying standard combustion gas to the air compressor (7), and the air compressor (7) conveys the mixture of the low-pressure EGR loop-processed reburning sintered gas and the standard combustion gas into the engine (1) for reburning.
4. The vehicle system with a low-pressure EGR loop of claim 2, further comprising:
the particulate matter regeneration loop comprises a regeneration pipeline connected with the turbine (3), wherein a regeneration valve (17), a first DPF (4) connected with the regeneration valve (17) and an EGP (10) connected with the first DPF (4) are arranged on the regeneration pipeline;
the particulate matter regeneration circuit takes exhaust gas from the turbine (3) upstream of the turbine through the first DPF (4) to perform a cleaning process of the particulate matter clogged in the first DPF (4) with the high temperature of the exhaust gas.
5. The vehicle system with low-pressure EGR circuit according to claim 4, characterized in that the EGP (10) comprises a second DPF;
the particulate regeneration circuit delivers exhaust gas through the first DPF (4) to the EGP (10) for cleaning of the second DPF of clogged particulate matter using the high temperature of the exhaust gas.
6. The vehicle system with a low-pressure EGR loop of claim 5, further comprising:
and the gas outlet pipeline (19) is connected with the EGP (10) and is used for outputting the exhaust gas treated by the first DPF (4) and the second DPF.
7. Vehicle system with low-pressure EGR circuit according to claim 4, characterized in that the low-pressure EGR valve (5) and the regeneration valve (17) are opened only one at the same time.
8. The vehicle system with a low-pressure EGR circuit according to claim 2, characterized in that the vehicle system further comprises an EGR mixer (9) connected to the intake manifold (15).
9. The vehicle system with low-pressure EGR circuit according to claim 8, characterized in that it further comprises an intake intercooler (8) connecting the compressor (7) and the EGR mixer (9);
the reburning gas output by the compressor (7) enters the engine (1) through an intake intercooler (8), an EGR mixer (9) and an intake manifold (15) in sequence.
10. The vehicle system with a low-pressure EGR loop of claim 8, further comprising:
a high-pressure EGR loop which comprises a high-pressure EGR pipeline (11) connected between an exhaust manifold (16) and an intake manifold (15), wherein a high-pressure EGR valve (12), a high-pressure EGR cooler (13), an EGR one-way valve (14) and an EGR mixer (9) are arranged on the high-pressure EGR pipeline (11);
exhaust gas output from the exhaust manifold (16) enters the engine (1) through a high-pressure EGR valve (12), a high-pressure EGR cooler (13), an EGR check valve (14), an EGR mixer (9) and an intake manifold (15) in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010732297.6A CN111894766A (en) | 2020-07-27 | 2020-07-27 | Vehicle system with low-pressure EGR loop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010732297.6A CN111894766A (en) | 2020-07-27 | 2020-07-27 | Vehicle system with low-pressure EGR loop |
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| CN111894766A true CN111894766A (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010732297.6A Pending CN111894766A (en) | 2020-07-27 | 2020-07-27 | Vehicle system with low-pressure EGR loop |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220136465A1 (en) * | 2020-10-30 | 2022-05-05 | Woodward, Inc. | High Efficiency Exhaust Gas Return System |
| US20230258149A1 (en) * | 2022-02-11 | 2023-08-17 | Spencer Ekstam | Soot exhaust gas recirculation separator |
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| CN208534649U (en) * | 2018-06-11 | 2019-02-22 | 东风商用车有限公司 | A kind of engine EGR system |
| CN109611242A (en) * | 2019-01-28 | 2019-04-12 | 天津大学 | A kind of high-efficiency cleaning burning diesel |
| WO2019166528A1 (en) * | 2018-02-28 | 2019-09-06 | Tenneco Gmbh | Low-pressure egr system with turbo bypass |
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| CN104603414A (en) * | 2012-09-13 | 2015-05-06 | 康明斯知识产权公司 | Exhaust system for spark-ignited gaseous fuel engine |
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| CN206035675U (en) * | 2016-08-31 | 2017-03-22 | 昆山市易泰汽车科技有限公司 | Engine waste gas recirculating system |
| US20180135486A1 (en) * | 2016-11-15 | 2018-05-17 | Hyundai Motor Company | Reforming system and reformer operating method using temperature sensor |
| US20180195446A1 (en) * | 2017-01-10 | 2018-07-12 | Robert Bosch Gmbh | Differentiating a flow rate error and a dynamic error of an exhaust gas recirculation system |
| CN207554223U (en) * | 2017-10-31 | 2018-06-29 | 潍柴动力股份有限公司 | A kind of high-low pressure egr system |
| WO2019166528A1 (en) * | 2018-02-28 | 2019-09-06 | Tenneco Gmbh | Low-pressure egr system with turbo bypass |
| CN208534649U (en) * | 2018-06-11 | 2019-02-22 | 东风商用车有限公司 | A kind of engine EGR system |
| CN109611242A (en) * | 2019-01-28 | 2019-04-12 | 天津大学 | A kind of high-efficiency cleaning burning diesel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220136465A1 (en) * | 2020-10-30 | 2022-05-05 | Woodward, Inc. | High Efficiency Exhaust Gas Return System |
| US11686278B2 (en) * | 2020-10-30 | 2023-06-27 | Woodward, Inc. | High efficiency exhaust gas return system |
| US20230258149A1 (en) * | 2022-02-11 | 2023-08-17 | Spencer Ekstam | Soot exhaust gas recirculation separator |
| WO2023154297A1 (en) * | 2022-02-11 | 2023-08-17 | Ekstam Spencer | Soot exhaust gas recirculation separator |
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Application publication date: 20201106 |