EP3218590A1 - An exhaust gas heating and energy recovery system - Google Patents
An exhaust gas heating and energy recovery systemInfo
- Publication number
- EP3218590A1 EP3218590A1 EP15820912.2A EP15820912A EP3218590A1 EP 3218590 A1 EP3218590 A1 EP 3218590A1 EP 15820912 A EP15820912 A EP 15820912A EP 3218590 A1 EP3218590 A1 EP 3218590A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- energy
- exhaust gas
- recovery system
- gas heating
- heater
- 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.)
- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 238000011084 recovery Methods 0.000 title claims abstract description 31
- 239000007789 gas Substances 0.000 claims abstract description 86
- 239000003054 catalyst Substances 0.000 claims abstract description 23
- 238000002485 combustion reaction Methods 0.000 claims abstract description 17
- 230000008929 regeneration Effects 0.000 claims abstract description 10
- 238000011069 regeneration method Methods 0.000 claims abstract description 10
- 238000004064 recycling Methods 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 claims description 17
- 239000004071 soot Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 claims description 2
- 241000448280 Elates Species 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 31
- 238000010531 catalytic reduction reaction Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
- B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/15—Control strategies specially adapted for achieving a particular effect
- B60W20/16—Control strategies specially adapted for achieving a particular effect for reducing engine exhaust emissions
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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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
-
- 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
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
- B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
-
- 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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/11—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for hybrid vehicles
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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
-
- 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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Definitions
- the present invention relates to an exhaust gas heating and energy recovery system which enables to enhance emission cycle performance and extra energy generation by heating the exhaust gas by using an energy generator and a heater, and which also enables use of recycling of this generated energy.
- Exhaust gas recirculation is a system aiming to reduce the heat generated as a result of combustion by recirculating a part of the exhaust gas back to the cylinders and thus to control nitrogen oxide gases (NOx) which are harmful for environment. It is particularly used widely in diesel engines.
- the exhaust gases are directed from the exhaust manifold to the intake duct via a tube in order to prevent formation of nitrogen oxides. This mixture of fresh air and exhaust gas is mixed with a certain amount of fuel by the engine control unit.
- the energy released as a result of combustion limits temperature of the gas in the cylinder due to the C0 2 coming from the exhaust gas and reduces NOx formation.
- the particulate filter in diesel engines is used for fulfilling the Euro6 legal requirements for heavy commercial vehicles.
- the particulate filter filters the particulates in the exhaust gas produced as a result of combustion and reduces important pollutants such as nitrogen oxides (NOx), hydrocarbons (THC) and carbon monoxide (CO).
- NOx nitrogen oxides
- HHC hydrocarbons
- CO carbon monoxide
- the particulates accumulated in the filter are burned at certain periods by increasing the exhaust gas temperature above 550°C. This process is called regeneration.
- there are many catalyst systems in vehicles for reducing NOx gas These catalyst systems should always remain hot in order to operate efficiently.
- the gas output from the engine is used to bring the exhaust system to a certain regime and the gas is directly discharged to the atmosphere without making use of its energy in any way.
- DPF Diesel Particulate Filter
- SCR Selective Catalytic Reduction
- the European patent document no. EP0632188 (Al), an application in the state of the art, discloses about exhaust emission control in diesel engines.
- the system comprises a filter (5), an exhaust gas passage (2), an electric heater (6), an electric motor (M), an air pump (9) and a battery (11).
- the filter collects a predetermined amount of the particulates
- the heater and the pump are used to remove the particulates from the filter and the filter is regenerated.
- the heater and motor are driven by a signal transmitted based on the difference between a value of actual power and a predetermined target power value.
- the objective of the present invention is to provide an exhaust gas heating and energy recovery system wherein a low PGM (precious metals such as Pt/Pd) level (low priced) system can be used since the diesel particulate filter will be hot enough to support passive regeneration.
- a low PGM precious metals such as Pt/Pd
- Another objective of the present invention is to provide an exhaust gas heating and energy recovery system wherein EGR system is not used due to the increased efficiency in SCR system, and thus price advantage is achieved.
- a further objective of the present invention is to provide an exhaust gas heating and energy recovery system which can be operated at high NOx low fuel economy regime and which thus provides advantage in fuel consumption.
- Another objective of the present invention is to provide an exhaust gas heating and energy recovery system whose energy converter can be operated uninterruptedly since a part of the heat energy discharged to the outer environment as waste energy will be delivered to the exhaust system.
- a further objective of the present invention is to provide an exhaust gas heating and energy recovery system which provides advantage in terms of fuel economy by providing extra torque to the engine which is recovered from the exhaust and kinetic energy of the vehicle.
- FIG. 1 is a schematic view of the engine exhaust component which does not have an exhaust gas heating and energy recovery system.
- At least one energy generator (3) which is positioned between the engine (2) and the wheel (J), and which converts the mechanical energy produced as a result of rotation of the wheel (J) preferably to electric energy and transfers this energy,
- At least one energy converter (5) which is positioned at the exhaust outlet after the catalysts (E), and which uses the energy in the gases which are burned and whose heat is increased in order to compensate for a part of the power consumed by the engine (2) and which thus allows less fuel consumption.
- air input into the preferably internal combustion engine (2) is provided preferably through turbo (B) and this air controlled via the valve (C) produces a combustion here together with the fuel.
- chemical energy is converted to mechanical energy and produces torque power to the wheel (J) by the clutch (H) by means of the transmission box (I).
- some burned gas is released to the environment as a result of the combustion.
- a catalyst € preferably diesel oxidation catalyst
- a filter preferably a diesel particulate filter
- thermometer Temperature of the gas is measured via a thermometer (G).
- the desired NOx cycle cannot be obtained due to the fact that the SCR catalyst (E) is not hot as much as preferred and therefore an additional exhaust gas recirculation system (A) is added to the engine (2).
- A exhaust gas recirculation system
- temperature of the exhaust gas cannot be utilized in any way, thus all of this energy is directly discharged to the atmosphere, in other words, all of it is wasted.
- this catalyzation process always continues as long as the engine (2) is running. Since this process is continuous, the filter (F) also continuously retains the soot in the exhaust gas and after a period of time these soot are required to be cleaned.
- this energy generator (3) In the case that the vehicle is moving downhill, this energy generator (3) is operated and it provides additional braking power to the vehicle; and if a force is applied to the vehicle (on a straight road or downhill), since the exhaust gas output from the engine (2) will be at the desired temperature, the energy generator (3) will be in passive mode and thus will not cause an additional load on the wheels (J). Since the exhaust gas output from the engine (2) is heated via a heater (4), a fuel injector (D) is not required as stated in the prior art and thus fuel is saved. As the exhaust gas is heated via a heater (4) when the vehicle is moving downhill, it enters into the filter (F) at a higher temperature than its current temperature, and therefore burns the soot inside the filter (F).
- the exhaust gas heating and energy recovery system (1) can be continuously operated in passive regeneration mode. Additionally, since the exhaust gas can be brought to the preferred temperature by means of the heater (4) and the NOx reduction ratio on SCR is high, the need for integration of an EGR (exhaust gas recirculation) system (A) for reducing NOx in the engine is eliminated.
- EGR exhaust gas recirculation
- this energy converter (5) which is mounted to the exhaust outlet after the catalysts (E), heat energy is converted to mechanical energy and transmitted to the clutch (H).
- the energy converter (5) provides a part of the energy required for movement of the vehicle and thus enables fuel saving.
- the energy converter (5) can also work continuously and this way significantly increases general efficiency.
- Temperature of the exhaust gas formed as a result of the combustion that takes place in the engine (2) is approximately 250°C.
- N02 based soot burning process can be easily performed when the vehicle engine (2) is loaded, when the vehicle is going downhill, in other words when the vehicle engine is not loaded, it is not sufficient to burn the soot inside the filter (F).
- a heater (4) is mounted between the engine (2) and the catalysts (E). The heater (4) supplies the energy it requires via the energy generator (3). By means of the said heater (4), temperature of the exhaust gas which is approximately 250°C is increased approximately to a temperature of 350°C.
- a temperature approximately 350°C is a temperature that is preferred for burning the soot in the filter (F). Since the exhaust gas will continuously be at the said temperature value by means of the heater (4), any additional system for burning the soot will not be required. Thus, the fuel injector (D) which increases gas temperature approximately to 600°C is not used thereby providing cost advantage. In addition, since the exhaust gas is delivered to the energy converter (5) continuously at the same temperature, efficiency of the energy converter (5) will be enhances as well as increasing the total energy provided to the energy converter.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Automation & Control Theory (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR201413382 | 2014-11-13 | ||
PCT/TR2015/050174 WO2016076814A1 (en) | 2014-11-13 | 2015-11-13 | An exhaust gas heating and energy recovery system |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3218590A1 true EP3218590A1 (en) | 2017-09-20 |
Family
ID=55073092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15820912.2A Withdrawn EP3218590A1 (en) | 2014-11-13 | 2015-11-13 | An exhaust gas heating and energy recovery system |
Country Status (2)
Country | Link |
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EP (1) | EP3218590A1 (en) |
WO (1) | WO2016076814A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040231330A1 (en) * | 2001-10-09 | 2004-11-25 | Shigeru Ibaraki | Rankine cycle system and vehicle therewith |
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JP2920161B2 (en) | 1993-06-22 | 1999-07-19 | 株式会社デンソー | Diesel engine exhaust purification system |
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JP4715883B2 (en) * | 2008-08-06 | 2011-07-06 | 株式会社デンソー | Exhaust treatment device for internal combustion engine |
US20120204536A1 (en) * | 2011-02-10 | 2012-08-16 | GM Global Technology Operations LLC | Catalytic converter combustion strategy for a hybrid vehicle |
US8968666B2 (en) * | 2012-09-13 | 2015-03-03 | GM Global Technology Operations LLC | Electrically heated catalyst with waste heat recovery |
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