EP3306045A1 - Épurateur de gaz d'échappement, dispositif d'entraînement ainsi que procédé de fonctionnement d'un dispositif d'entraînement - Google Patents
Épurateur de gaz d'échappement, dispositif d'entraînement ainsi que procédé de fonctionnement d'un dispositif d'entraînement Download PDFInfo
- Publication number
- EP3306045A1 EP3306045A1 EP17193734.5A EP17193734A EP3306045A1 EP 3306045 A1 EP3306045 A1 EP 3306045A1 EP 17193734 A EP17193734 A EP 17193734A EP 3306045 A1 EP3306045 A1 EP 3306045A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust
- exhaust gas
- filter body
- heat exchanger
- exhaust filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000746 purification Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000002912 waste gas Substances 0.000 title claims abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 156
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000012546 transfer Methods 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 13
- 239000002826 coolant Substances 0.000 claims description 12
- 238000005496 tempering Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 2
- 238000005485 electric heating Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 24
- 239000000463 material Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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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
-
- 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
- F01N3/0205—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using heat exchangers
-
- 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
- F01N3/027—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 using electric or magnetic heating means
-
- 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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/02—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a heat exchanger
-
- 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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/16—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electric heater, i.e. a resistance heater
-
- 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
- F01N2250/00—Combinations of different methods of purification
- F01N2250/10—Combinations of different methods of purification cooling and filtering
-
- 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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/02—Exhaust treating devices having provisions not otherwise provided for for cooling the device
- F01N2260/024—Exhaust treating devices having provisions not otherwise provided for for cooling the device using a liquid
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
-
- 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
Definitions
- the invention relates to an exhaust gas purification device with an exhaust gas filter, which has arranged in an exhaust filter housing, a plurality of flow channels forming exhaust filter body, and an electric heater for heating the exhaust filter body, wherein the exhaust filter body is enclosed by a housing wall of the exhaust filter housing.
- the invention further relates to a drive device with a waste-gas generating drive unit and an exhaust gas purification device for cleaning the exhaust gas generated by the drive unit and a method for operating a drive device.
- the exhaust gas purification device is used to purify exhaust gas, which is generated by the exhaust gas generating drive unit, which is for example part of the drive device, during its operation.
- the exhaust gas filter has the exhaust filter body, which exerts the actual filtering and / or catalytic effect on the exhaust gas or the pollutants contained therein.
- the exhaust filter body consists for example of a honeycomb body, in which the plurality of flow channels is present.
- the honeycomb body is preferably made of ceramic, for example cordierite. However, other materials may be used to make the honeycomb body.
- the exhaust filter body may be provided with a catalytic coating in the case of an at least partial embodiment of the exhaust gas filter as exhaust gas catalytic converter.
- this coating is in shape a so-called washcoat, which for increasing an effective surface has a high roughness, in particular a higher roughness than the exhaust filter body itself.
- at least one catalytically active element for example a noble metal, is incorporated in the coating.
- platinum, rhodium and palladium is incorporated in the coating.
- the exhaust gas catalyst can be configured, for example, as a three-way catalyst or as a four-way catalyst.
- the exhaust gas filter may also be configured as a particle filter or at least have such a filter.
- the particulate filter is, for example, a gasoline particulate filter or a diesel particulate filter.
- the exhaust filter body is disposed in the exhaust filter housing.
- the exhaust gas filter housing is used in particular for the flow guidance of the exhaust gas flow.
- the exhaust filter housing has an exhaust gas inlet and an exhaust gas outlet. Exhaust gas can escape into the exhaust gas filter housing through the exhaust gas inlet. Subsequently, it flows through the exhaust filter housing and exits through the exhaust outlet from the exhaust filter housing.
- the exhaust filter body In the flow path between the exhaust gas inlet and the exhaust gas outlet of the exhaust filter body is arranged in the exhaust filter housing, this is provided such that the exhaust gas passes through the exhaust filter body or its flow channels in the flow through the exhaust filter housing, ie on the flow path between the exhaust inlet and the exhaust gas outlet ,
- the exhaust filter body is preferably arranged in the exhaust filter housing such that the entire exhaust gas entering the exhaust gas filter housing through the exhaust gas inlet flows through the exhaust filter body or its flow channels.
- the exhaust filter body is for this purpose preferably enclosed by the housing wall of the exhaust filter housing.
- the housing wall preferably limits the exhaust gas inlet and / or via the exhaust gas outlet.
- the exhaust gas inlet and the exhaust gas outlet are each formed as an edge-closed opening in the housing wall. The housing wall thus ensures a flow guidance of the exhaust gas flowing through the exhaust filter housing from the exhaust gas inlet to the exhaust gas outlet.
- the exhaust filter has its highest conversion rates for the pollutants at a certain operating temperature. In particular, at temperatures below this operating temperature, the conversion rates are extremely low, so that the exhaust gases can flow through without conversion the exhaust gas filter, thus emerge together with the exhaust gas from the exhaust gas outlet of the exhaust gas filter.
- the electric heater is provided. This serves to heat the exhaust filter body in order to bring it as quickly as possible to the operating temperature. This is preferably done before the start of operation of the exhaust-generating drive unit, ie before the exhaust gas filter is flowed through by exhaust gas.
- the exhaust filter body is already brought to its operating temperature by means of the heater before the exhaust-generating drive unit is put into operation, that is, exhaust gas is generated.
- the heating of the exhaust filter body by means of the electric heater is extremely energy consuming. This is all the more true if the exhaust-generating drive unit is operated only temporarily, as may be the case for example in a hybrid drive device of a motor vehicle. In this case, the exhaust filter body must during operation of the motor vehicle with switched off gas generating drive unit be heated continuously, because the device can be started at any time.
- a heat exchanger is arranged on the side facing away from the exhaust filter body side of the housing wall, which is in heat transfer connection via the housing wall with the exhaust filter body.
- the exhaust gas purification device therefore has the heat exchanger in addition to the exhaust gas filter. This is designed such that it serves to dissipate heat from the exhaust filter body. Accordingly, it is arranged such that it is in heat transfer communication with the exhaust filter body.
- the heat transfer connection is above the housing wall.
- the housing wall preferably consists of a thermally conductive material, in particular in a region of the housing wall, against which the exhaust filter body on the one hand and the heat exchanger on the other.
- the housing wall consists of several sections, which consist of different materials.
- the housing wall is made of a material which has a higher thermal conductivity than a partial region in which both the heat exchanger and the exhaust filter body are present Material from which at least one further sub-area consists of the housing wall, which is present away from the heat exchanger and the exhaust filter body, that is spaced therefrom.
- a heat-conducting element can be, for example, a heat pipe, for example a heat pipe or a thermosyphon. If such a heat conduction device is provided, it goes without saying that the housing wall can be made of the same material throughout, that is, consist continuously of the same material.
- the heat exchanger is arranged on the side facing away from the exhaust filter body side of the housing wall.
- the heat exchanger should not be directly flowed by exhaust gas and / or overflowed. Rather, the heat exchanger should be present outside exhaust-carrying areas of the exhaust filter housing. Accordingly, the heat exchanger ultimately serves the removal of heat from the exhaust filter body, but not the direct removal of heat from the exhaust gas. This is only provided indirectly via the exhaust filter body.
- the heat removed by the heat exchanger the exhaust filter body heat can be supplied to any other device.
- the heat exchanger is connected to a cooling circuit, which serves for the temperature control or cooling of a drive unit of the drive device.
- the heat can be used for tempering a passenger compartment of the motor vehicle. This means that, on the one hand, the exhaust filter body is heated by means of the electric heater, but the energy used for this purpose also used for other purposes, especially when the exhaust filter body has already reached its operating temperature.
- the thermal mass of the exhaust gas filter or the exhaust gas purification device is increased by the heat exchanger, so that a cooling of the exhaust gas filter, in particular starting from its operating temperature, is delayed in comparison with conventional exhaust gas purification devices.
- the heat exchanger for cooling the exhaust gas.
- the exhaust gas by means of the heat exchanger, a certain amount of heat withdrawn, which is chosen such that downstream of the heat exchanger, the exhaust gas has a certain exhaust gas temperature or at least does not exceed. This can be provided, for example, when the exhaust gas downstream of the exhaust gas cleaning device flows through an exhaust gas line which is present in the region of an energy store for electrical energy, in particular a battery, for example a high-voltage battery, or passes through it. Even if the exhaust pipe passes through a tunnel, the described procedure can be used.
- the heat exchanger has a plurality of heat transfer regions respectively adjacent to the housing wall, which have different inner dimensions from each other.
- the exhaust filter housing or the housing wall is composed of several subregions.
- these partial regions adjoin one another in the axial direction with respect to the longitudinal central axis of the exhaust filter body.
- some of the sections may also be spaced apart from each other.
- the portions of the exhaust filter housing may have different outer dimensions.
- the heat exchanger is adapted to the exhaust gas filter housing or the subregions in shape and / or dimensions, in particular in such a way that it rests against it or against it from the outside. Accordingly, the heat exchanger on a plurality of different heat transfer areas, which have different inner dimensions. It may be provided that the heat exchanger has larger dimensions in the axial direction than the exhaust filter body. In particular, the heat exchanger extends in the downstream direction with respect to the direction of flow of the exhaust gas through the exhaust gas filter beyond the exhaust filter body. Alternatively, it may of course be provided that the heat exchanger is aligned on its downstream side with the exhaust filter body or ends upstream of this.
- a further embodiment of the invention provides that at least one of the heat exchanger regions has a cylindrical, in particular circular-cylindrical, inner peripheral surface and / or at least one further of the heat-exchanger regions has a conical inner circumferential surface.
- the heat transfer areas can have any desired shape.
- one of the heat exchanger regions is preferably cylindrical and another of the heat exchanger regions is conical. This also applies correspondingly to the subsections of the housing wall or of the exhaust gas filter housing to which the respective heat exchanger area rests.
- the exhaust gas filter housing initially has a cylindrical subarea, to which a conical subarea adjoins, so that the throughflow cross section in the flow direction increases.
- the conical portion is in turn closed by a cylindrical portion in which the exhaust filter body is present.
- Downstream of the exhaust filter body is again a conical portion, in which the flow cross-section decreases in the flow direction.
- a cylindrical section can follow this conical subregion.
- the exhaust gas inlet and in the last-mentioned subarea of the exhaust gas outlet may be present.
- the exhaust gas filter housing and / or the heat exchanger is encompassed at least partially by one, in particular at least on the one hand of the heat exchanger or on both sides of the heat exchanger to the housing wall, heat insulation.
- the thermal insulation is used for thermal insulation of the exhaust gas purification device, so that as little heat of the exhaust filter body is lost, especially if it is not flowed through by exhaust gas.
- the heat insulation surrounds the exhaust filter housing and / or the heat exchanger at least in regions, in particular in the circumferential direction with respect to the longitudinal central axis of the exhaust filter body completely.
- the heat insulation is preferably applied to an outer peripheral surface of the exhaust filter housing and / or the heat exchanger.
- the heat insulation extends in the flow direction at least on one side, but preferably on both sides, beyond the heat exchanger addition. This means that the thermal insulation rests continuously in the flow direction on the heat exchanger and rests on both sides of the heat exchanger to the exhaust filter housing. It may be provided here that the heat insulation extends in the flow direction from the exhaust gas inlet to the exhaust gas outlet of the exhaust gas filter housing.
- the invention further relates to a drive device with a waste gas generating drive unit and an exhaust gas purification device for cleaning the exhaust gas generated by the drive unit, in particular an exhaust gas purification device according to the above embodiments, wherein the exhaust gas purification device via an exhaust filter, which arranged in an exhaust filter housing, a plurality of flow channels forming exhaust filter body has, and has an electric heater for heating the exhaust filter body, wherein the exhaust filter body is enclosed by a housing wall of the exhaust filter housing. It is provided that a heat exchanger is arranged on the side facing away from the exhaust filter body side of the housing wall, which is in heat transfer connection via the housing wall with the exhaust filter body.
- a further preferred embodiment of the invention provides a cooling circuit for controlling the temperature of the drive unit, which is fluidically connected to the heat exchanger.
- the cooling circuit of the temperature control of the drive unit so that it can also be referred to as tempering.
- the cooling circuit is fluidically connected to the heat exchanger, so that in the cooling circuit circulating coolant is at least partially guided by the heat exchanger. In this way, the heat taken from the exhaust filter body heat can serve the tempering of the drive unit, in particular if this is currently not operated.
- a development of the invention provides that the cooling circuit is fluidically connected directly or via a further heat exchanger to a passenger compartment heating.
- the passenger compartment heating circuit serves to control the temperature of a passenger compartment of the motor vehicle. It can now be provided that the coolant used in the cooling circuit is supplied directly to the passenger compartment heating circuit. Alternatively, another heat exchanger can be present between the cooling circuit and the passenger compartment heating circuit, so that the cooling circuit and the passenger compartment heating circuit are fluidly decoupled from one another.
- the invention relates to a method for operating a drive device, in particular a drive device according to the preceding embodiments, which has a waste gas generating drive unit and an exhaust gas purification device for cleaning the exhaust gas generated by the drive unit, the exhaust gas purification device via an exhaust filter, which arranged in a exhaust gas filter housing, has a plurality of flow channels forming exhaust filter body, and has an electric heater for heating the exhaust filter body, wherein the exhaust filter body is enclosed by a housing wall of the exhaust filter housing. It is provided that a heat exchanger is arranged on the side facing away from the exhaust filter body side of the housing wall, which is in heat transfer connection via the housing wall with the exhaust filter body.
- a flow of coolant is interrupted by the heat exchanger until the exhaust filter body has reached a target temperature and after reaching the sol temperature of the exhaust filter body by means of the heat exchanger Heat is taken, which is subsequently used for tempering at least one vehicle device, in particular the drive unit, a passenger compartment and / or an energy storage.
- the exhaust filter body should first be brought to its operating temperature as quickly as possible.
- the exhaust filter body is preferably supplied with heat by means of the heating device.
- it can be supplied heat of the exhaust gas.
- the coolant flow can be released by the heat exchanger, so that the coolant flows through the heat exchanger.
- the heat exchanger or the coolant heat is subsequently removed from the exhaust filter body and fed to at least one vehicle device.
- a further embodiment of the invention can provide that in a second operating mode, the heating device is deactivated, wherein the exhaust filter body heat is removed by means of the heat exchanger for tempering the at least one vehicle device.
- the heater is disabled.
- the exhaust filter body is supplied so far no or only by means of the exhaust heat. In any case, however, the exhaust filter body by means of the heat exchanger heat are removed, which is subsequently used for tempering the at least one vehicle device.
- such a procedure is provided during the operation of the exhaust gas generating drive unit, so that the heat contained in the exhaust gas is used for controlling the temperature of the vehicle device.
- it can also be provided to remove the heat from the exhaust filter body, although heat is neither supplied to it by means of the heating device nor via the exhaust gas.
- the exhaust filter body is used as a heat storage. This is preferably carried out when the temperature of the exhaust filter body is greater than the target temperature.
- the setpoint temperature may in this case correspond to the above-mentioned operating temperature.
- the exhaust filter body is heated by means of the heater, so that its temperature increases in the direction of the setpoint temperature or operating temperature. If the exhaust filter body has reached its setpoint temperature, the heat supplied to the exhaust filter body by means of the heating device can be used in addition to controlling the temperature of the drive assembly, the passenger compartment or the like.
- a fluid can be present in the heat exchanger, which is circulated in the heat exchanger or within a closed coolant circuit associated with the heat exchanger.
- a coolant for example, thermal oil is used. This can either active in the heat exchanger or the coolant circuit, ie by means of a conveyor, or passively circulated. For passive circulation, for example, the thermosiphon effect is used.
- the heat exchanger is fluidically connected via a further heat exchanger to the cooling circuit and / or the passenger compartment heating circuit.
- Figure is a schematic partial sectional view of an exhaust gas purification device having an exhaust filter, a heat exchanger and a heat insulation.
- the figure shows a schematic partial sectional view of an exhaust gas purification device 1.
- This has an exhaust gas filter 2, which in turn has an exhaust filter body 3.
- an exhaust filter body 3 In the exhaust filter body 3, a plurality of flow channels not shown in detail here is formed.
- the exhaust filter body is arranged in an exhaust filter housing 4 and is enclosed by a housing wall 5 of the exhaust filter housing 4.
- the housing wall 5 With regard to a flow direction of exhaust gas flowing through the exhaust gas purification device 1, the housing wall 5 preferably comprises the exhaust gas filter body 3 completely in the circumferential direction.
- the flow direction of the exhaust gas is indicated by the arrows 6.
- an exhaust gas inlet 7 and an exhaust gas outlet 8 are formed in the exhaust filter housing 4, an exhaust gas inlet 7 and an exhaust gas outlet 8 are formed.
- the exhaust gas flows through the exhaust gas inlet 7 into the exhaust gas filter housing 4 and out of the exhaust gas filter housing 4 through the exhaust gas outlet 8.
- the exhaust gas filter body 3 is arranged, namely in such a way that the entire exhaust gas flowing through the exhaust gas filter 2 passes through the exhaust gas filter body 3 or its flow channels.
- the exhaust filter body 3 may be sealingly attached to the housing wall 5, for example via a fastening element 9.
- the fastening element 9 consists for example of an elastic material.
- a heat exchanger 10 is arranged on the exhaust filter body 3 side facing away from the housing wall 5.
- the heat exchanger 10 is viewed in the flow direction of the exhaust gas at least partially in overlap with the exhaust filter body 3 before.
- the heat exchanger 10 extends beyond the exhaust filter body 3 both upstream and downstream.
- the heat exchanger 10 is particularly preferably located closer to the exhaust gas outlet 8 than to the exhaust gas inlet 7.
- a reverse configuration may also be provided.
- the heat exchanger 10 preferably has a plurality of fluid ports 12 and 13, wherein one of the fluid ports 12 and 13 serves as a fluid inlet and another of the fluid ports 12 and 13 as a fluid outlet.
- the coolant can be supplied to the heat exchanger 10 through the fluid inlet and removed through the fluid outlet.
- the heat exchanger 10 or its fluid space 11 is associated with a cooling circuit for cooling a drive unit of a drive device, wherein the exhaust gas purification device 1 is part of the drive device.
- At least one flow guiding element and / or at least one surface enlarging element can be arranged in the fluid space 11.
- the at least one flow guide element is for example arranged and / or formed such that through the fluid inlet supplied fluid is passed to the fluid outlet.
- the fluid inlet and the fluid outlet are spaced apart in the axial direction, in particular in the axial direction at opposite ends of the fluid space 11.
- the flow guide element is now intended to guide the supplied fluid in a spiral shape in such a way that it is deflected by at least 180 ° in the circumferential direction on the way to the fluid outlet.
- a deflection of at least 360 °, at least 720 °, at least 1080 °, at least 1440 ° or at least 1800 ° may be provided.
- the flow guide element in the fluid space 11 forms a flow channel which starts at the fluid inlet and ends at the fluid outlet and has several turns in the circumferential direction, in particular at least 2, at least 3, at least 4 or at least 5.
- the surface enlargement element is provided in the fluid space 11. This is attached to the housing wall 5 and passes through the fluid space 11 in the radial direction preferably only partially. Alternatively, of course, a complete penetration can be provided. In this case, the surface enlarging element is additionally designed as a flow guide element.
- At least one of the exhaust gas flowing and / or overflowed Abgasleitelement is arranged downstream of the exhaust filter body 3 in the exhaust filter housing 4.
- This is preferably designed such that it directs exhaust gas in the radial direction outwards in the direction of the housing wall 5.
- the exhaust gas a comparatively large amount of heat can be withdrawn.
- this is the exhaust gas guide of the surface enlargement.
- the exhaust gas guide element consists for example of a heat-conducting material and is heat-conducting with the housing wall 5 connected. The exhaust gas guide element extends in each case starting from the housing wall 5, starting in the radial direction inwards.
- both the exhaust filter housing 4 and the heat exchanger 10 are encompassed in each case at least partially by a heat insulation 14.
- the heat insulation 14 extends both upstream and downstream beyond the heat exchanger 10 and is thus on both sides of the heat exchanger 10 to the housing wall 5 at.
- the thermal insulation 14 extends from the exhaust gas inlet 7 to the exhaust gas outlet 8.
- the heat exchanger 10 has different heat exchanger regions 15, 16 and 17. Each of these heat transfer areas 15, 16 and 17 is adapted to the exhaust filter housing 4 shape and dimension.
- the heat transfer regions 15 and 17, for example, cylindrical, in particular circular-cylindrical configured, while the heat transfer region 16 is conical.
- the heat supplied to the exhaust filter body 3 by means of an electric heater, not shown here, is supplied to at least one other device, in particular another vehicle device, after reaching an operating temperature through the exhaust filter body 3.
- the exhaust filter body 3 is further heated by the heater.
- the other vehicle device may be, for example, the drive unit, a passenger compartment and / or an energy store or a heat store.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016219389.9A DE102016219389A1 (de) | 2016-10-06 | 2016-10-06 | Abgasreinigungseinrichtung, Antriebseinrichtung sowie Verfahren zum Betreiben einer Antriebseinrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3306045A1 true EP3306045A1 (fr) | 2018-04-11 |
EP3306045B1 EP3306045B1 (fr) | 2019-07-10 |
Family
ID=59997169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17193734.5A Active EP3306045B1 (fr) | 2016-10-06 | 2017-09-28 | Épurateur de gaz d'échappement, dispositif d'entraînement ainsi que procédé de fonctionnement d'un dispositif d'entraînement |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3306045B1 (fr) |
DE (1) | DE102016219389A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3106368A1 (fr) * | 2020-01-19 | 2021-07-23 | Psa Automobiles Sa | Pot catalytique de vehicule destine a reduire les emissions de polluants |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04175415A (ja) * | 1990-11-07 | 1992-06-23 | Toyota Motor Corp | 排気浄化装置 |
JPH06108822A (ja) * | 1992-09-28 | 1994-04-19 | Mitsubishi Motors Corp | パティキュレート補集システム |
JP2002336628A (ja) * | 2001-05-17 | 2002-11-26 | Mitsubishi Heavy Ind Ltd | 排ガス中の浮遊微粒子除去装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2432285A1 (de) * | 1974-07-05 | 1976-01-22 | Eberspaecher J | Abgaskatalysator |
US4359863A (en) * | 1980-12-22 | 1982-11-23 | Texaco Inc. | Exhaust gas torch apparatus |
-
2016
- 2016-10-06 DE DE102016219389.9A patent/DE102016219389A1/de not_active Withdrawn
-
2017
- 2017-09-28 EP EP17193734.5A patent/EP3306045B1/fr active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04175415A (ja) * | 1990-11-07 | 1992-06-23 | Toyota Motor Corp | 排気浄化装置 |
JPH06108822A (ja) * | 1992-09-28 | 1994-04-19 | Mitsubishi Motors Corp | パティキュレート補集システム |
JP2002336628A (ja) * | 2001-05-17 | 2002-11-26 | Mitsubishi Heavy Ind Ltd | 排ガス中の浮遊微粒子除去装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3106368A1 (fr) * | 2020-01-19 | 2021-07-23 | Psa Automobiles Sa | Pot catalytique de vehicule destine a reduire les emissions de polluants |
Also Published As
Publication number | Publication date |
---|---|
DE102016219389A1 (de) | 2018-04-12 |
EP3306045B1 (fr) | 2019-07-10 |
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