US20190032534A1 - Exhaust fluid tank provided with an exhaust system - Google Patents
Exhaust fluid tank provided with an exhaust system Download PDFInfo
- Publication number
- US20190032534A1 US20190032534A1 US15/658,777 US201715658777A US2019032534A1 US 20190032534 A1 US20190032534 A1 US 20190032534A1 US 201715658777 A US201715658777 A US 201715658777A US 2019032534 A1 US2019032534 A1 US 2019032534A1
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- United States
- Prior art keywords
- heating element
- side wall
- exhaust
- disposed
- exhaust fluid
- 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.)
- Abandoned
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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
- F01N3/08—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
- 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
- F01N3/2066—Selective catalytic reduction [SCR]
-
- 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
- F01N3/24—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 constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
-
- 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
Definitions
- the subject disclosure relates to an exhaust fluid tank provided with an exhaust system.
- Some vehicles incorporate diesel engines that may be provided with an exhaust system that is configured to reduce the amount of regulated constituents that may be emitted by the vehicle.
- the exhaust system may make use of fluids that are mixed with the exhaust gases prior to release into the external operating environment of the vehicle.
- the fluids may be stored in a storage tank that may freeze when the vehicle is exposed to freezing temperatures.
- an exhaust fluid system capable of inhibiting or thawing the fluid that may be stored in the storage tank.
- an exhaust system in one exemplary embodiment, includes an exhaust pipe that extends from an internal combustion engine and an exhaust fluid system that is operatively connected to the exhaust pipe.
- the exhaust fluid system is configured to inject an exhaust fluid into the exhaust pipe.
- the exhaust fluid system includes an exhaust fluid tank and a heating system disposed within the exhaust fluid tank.
- the exhaust fluid tank has a base with an inner base surface and an outer base surface each extending between a first end wall, a second end wall, a first side wall, and a second side wall, each wall having an inner surface and an outer surface.
- the heating system includes a first heating element that is disposed on the inner base surface.
- the heating system includes a second heating element that is disposed on the inner surface of at least one of the first side wall and the second side wall.
- the first heating element is spray deposited on the inner base surface and the second heating element is spray deposited on the inner surface of at least one of the first side wall and the second side wall.
- the first heating element and the second heating element are electrically conductive coatings.
- a thermally conductive coating is disposed on at least one of the first heating element and the second heating element.
- a solid plate disposed on at least one of the first heating element and the second heating element.
- the heating system includes a first heating element that is disposed between the inner base surface and the outer base surface.
- the heating system includes a second heating element that is disposed between the inner surface and the outer surface of at least one of the first side wall and the second side wall.
- the heating system includes a first heating element that extends between the first side wall and the second side wall.
- the first heating element engages the inner base surface.
- the heating system includes a second heating element that is spaced apart from the first heating element and extends between the first side wall and the second side wall.
- the second heating element engages the inner base surface.
- a third heating element is disposed on the outer base surface.
- the internal combustion engine is a diesel engine.
- an exhaust fluid tank in another exemplary embodiment, includes a base having an inner base surface and an outer surface; a first end wall, a second end wall, a first side wall, and a second side wall, each extending from the base and each wall having an inner surface and an outer surface; and a first heating element that is disposed between the inner base surface and the outer base surface.
- a second heating element is disposed between the inner surface and the outer surface of at least one of the first side wall and the second side wall.
- an exhaust fluid tank in yet another exemplary embodiment, includes a base having an inner base surface and an outer surface extending between a first end wall, a second end wall, a first side wall, and a second side wall, each extending from the base and each having an inner surface and an outer surface.
- the exhaust fluid tank further includes a first heating element that is disposed on the inner base surface.
- a second heating element is disposed on at least one of the inner surface of at least one of the first side wall and the second side wall.
- the exhaust system is provided for after-treatment of diesel exhaust.
- FIG. 1 is a schematic side view of an exhaust system
- FIG. 2 is a schematic section view of an exhaust fluid tank
- FIG. 3 is a partial sectional view of a heating system of the exhaust fluid tank
- FIG. 4 is a partial sectional view of a heating system of the exhaust fluid tank.
- FIG. 5 is a partial sectional view of a heating system of the exhaust fluid tank.
- an exhaust system 10 is shown in FIG. 1 .
- the exhaust system 10 may be provided with a vehicle that incorporates an internal combustion engine 12 , such as, a gasoline engine, a diesel engine, a flex fuel engine, a fuel cell, a hybrid engine, or the like.
- the exhaust system 10 is provided for the after-treatment of exhaust gases.
- the exhaust system 10 includes an exhaust pipe 20 and an exhaust fluid system 22 .
- the exhaust pipe 20 is operatively connected to the internal combustion engine 12 and extends from the internal combustion engine 12 .
- the exhaust pipe 20 directs exhaust gases from the internal combustion engine 12 through exhaust treatment devices and noise attenuation devices.
- the exhaust pipe 20 defines an injection port 30 that fluidly connects the exhaust fluid system 22 to the exhaust pipe 20 .
- the exhaust fluid system 22 is operatively connected to the exhaust pipe 20 via the injection port 30 .
- the exhaust fluid system 22 may be a diesel exhaust fluid system that is configured to inject an exhaust fluid 40 into the exhaust pipe 20 for after-treatment of diesel exhaust gases to reduce the concentration of certain exhaust constituents or compounds that may be present within the exhaust gases.
- the exhaust fluid system 22 includes an exhaust fluid tank 42 , an exhaust fluid pump 44 , and a heating system 46 .
- the exhaust fluid tank 42 is positioned proximate the exhaust pipe 20 and is arranged to store the exhaust fluid 40 .
- the exhaust fluid tank 42 includes a base 50 , a first side wall 52 , a second side wall 54 , a first end wall 56 , a second end wall 58 , and a cover 60 .
- the base 50 includes an inner base surface 70 and an outer base surface 72 that is disposed opposite the inner base surface 70 .
- the first side wall 52 and the second side wall 54 are disposed opposite each other and extend from the base 50 towards the cover 60 .
- the first end wall 56 and the second end wall 58 are disposed opposite each other and extend between the first side wall 52 and the second side wall 54 .
- the first end wall 56 and the second end wall 58 extend from the base 50 towards the cover 60 .
- the cover 60 is disposed opposite the base 50 and extends between the first side wall 52 , the second side wall 54 , the first end wall 56 , and the second end wall 58 .
- Each wall i.e.
- the first side wall 52 , the second side wall 54 , the first end wall 56 , and the second end wall 58 , and the cover 60 include an inner surface ( 74 a , 74 b , 74 c , 74 d , 74 e , respectively) and an outer surface ( 76 a , 76 b , 76 c , 76 d , 76 e , respectively).
- the inner surfaces and the inner base surface 70 define an interior of the exhaust fluid tank 42 and the outer surfaces and the outer base surface 72 define an exterior of the exhaust fluid tank 42 .
- the exhaust fluid pump 44 extends at least partially through the cover 60 of the exhaust fluid tank 42 .
- the exhaust fluid pump 44 is fluidly connected to the exhaust fluid tank 42 by a first fluid conduit 80 that extends into the exhaust fluid tank 42 and is fluidly connected to the exhaust pipe 20 by a second fluid conduit 82 .
- the first fluid conduit 80 extends into the interior of the exhaust fluid tank 42 and is connected to an inlet of the exhaust fluid pump 44 .
- the second fluid conduit 82 extends from an outlet of the exhaust fluid pump 44 to the injection port 30 .
- the exhaust fluid 40 may freeze while ambient air temperatures are below freezing.
- the heating system 46 is provided to thaw or inhibit freezing of the exhaust fluid 40 within the exhaust fluid tank 42 .
- the heating system 46 may include a first heating element 90 , a second heating element 92 , and a third heating element 94 .
- the first heating element 90 , the second heating element 92 , and the third heating element 94 are electrically connected to a power source and provide heating while electrically powered.
- the first heating element 90 and the second heating element 92 are disposed within the exhaust fluid tank 42 .
- the first heating element 90 engages the inner base surface 70 .
- the second heating element 92 engages the inner surface 74 a of the first side wall 52 and/or the inner surface 74 b of the second side wall 54 .
- the first heating element 90 and the second heating element 92 may be conductive coatings that are applied to the inner base surface 70 and the inner surface 74 a of the first side wall 52 and/or the inner surface 74 b of the second side wall 54 , respectively.
- the conductive coating may be spray deposited on the inner base surface 70 and at least one of the inner surface 74 a of the first side wall 52 and/or the inner surface 74 b of the second side wall 54 .
- the conductive coating is a thermally conductive coating that may include a conductive material, a resistive material, and a thermal dielectric material.
- the conductive material is deposited on or sprayed on a substrate, a dielectric material that is disposed on the on the inner base surface 70 and the inner surface 74 a of the first side wall 52 and/or the inner surface 74 b of the second side wall 54 , or directly on the inner base surface 70 and the inner surface 74 a of the first side wall 52 and/or the inner surface 74 b of the second side wall 54 .
- the conductive material is a material that is thermally or electrically conductive.
- the resistive material is deposited on or sprayed on the conductive material.
- the resistive material is material that is selected to convert electrical energy to thermal energy.
- the conductive material and the resistive material are mixed together and applied to a substrate or directly on the inner base surface 70 and the inner surface 74 a of the first side wall 52 and/or the inner surface 74 b of the second side wall 54 .
- the thermal dielectric material may be deposited on or sprayed on the resistive material.
- the thermal dielectric material may be a composition that may aid in the heat transfer of the heat generated by the resistive material into the exhaust fluid 40 .
- a sealant may be applied over the conductive coating to protect the conductive coating.
- a solid plate may be disposed on or bonded to at least one of the first heating element 90 and the second heating element 92 .
- the solid plate is a metallic thermally conductive plate that transfers heat generated by at least one of the first heating element 90 and/or the second heating element 92 to the exhaust fluid 40 .
- a sealant or adhesive may be applied between the solid plate and an inner surface of the diesel exhaust fluid tank 42 to operatively connect the solid plate to the interior of the diesel exhaust fluid tank 42 .
- the first heating element 90 and the second heating element 92 may be embedded within the solid plate and the solid plate is disposed on the inner base surface 70 and the inner surface 74 a of the first side wall 52 and/or the inner surface 74 b of the second side wall 54 .
- the first heating element 90 and the second heating element 92 may be induction heaters, bus wires, a heating grid, thermally conductive elements, or resistive heating elements that are disposed within the base 50 and/or the first and second side walls 52 , 54 of the exhaust fluid tank 42 .
- the first heating element 90 may be disposed or embedded within the base 50 such that the first heating element 90 is disposed between the inner base surface 70 and the outer base surface 72 .
- the first heating element 90 may be molded into the base 50 of the exhaust fluid tank 42 .
- the second heating element 92 may be disposed or embedded within a wall of the exhaust fluid tank 42 such that the second heating element 92 is disposed between the inner surface 74 and the outer surface 76 of at least one of the first side wall 52 (i.e. 74 a , 76 a ), the second side wall 54 (i.e. 74 b , 76 b ), and the cover 60 (i.e. 74 e , 76 e ).
- the second heating element 92 may be molded into at least one of the first side wall 52 and the second side wall 54 .
- the third heating element 94 may be incorporated with the exhaust fluid pump 44 .
- the third heating element 94 may be provided with or run along the first fluid conduit 80 to provide heating to the first fluid conduit 80 and/or exhaust fluid 40 that is disposed proximate the first fluid conduit 80 .
- the third heating element 94 may be disposed on an exterior surface of the exhaust fluid tank 42 .
- the third heating element 94 may be provided with a blanket that is disposed about at least a portion of the exhaust fluid tank 42 .
- the third heating element 94 may disposed on or engage the outer base surface 72 .
- the third heating element 94 may provide primary heating of the exhaust fluid 40 within the exhaust fluid tank 42 .
- the first heating element 90 and the second heating element 92 may provide secondary heating of the exhaust fluid 40 within the exhaust fluid tank 42 .
- the first heating element 90 and the second heating element 92 may be configured as inserts or plate heaters that are inserted into the exhaust fluid tank 42 .
- the first heating element 90 and the second heating element 92 are each inserted into the interior of the exhaust fluid tank 42 and are spaced apart from each other.
- the first heating element 90 and the second heating element 92 each extend between the base 50 , the first side wall 52 , and the second side wall 54 .
- the first heating element 90 and the second heating element 92 each engage the inner base surface 70 and the inner surface 74 a of the first side wall 52 and/or the inner surface 74 b of the second side wall 54 .
- Coordination of operation of the heating system 46 may be dictated or controlled by a control module 100 that is in communication with the heating system 46 , as shown in FIG. 1 .
- the control module 100 may be a controller that is in communication with an overall vehicle controller or may be integrated with the overall vehicle controller.
- the control module 100 may include a microprocessor or central processing unit (CPU) in communication with various types of computer readable storage devices or media.
- Computer readable storage devices or media may include volatile and nonvolatile storage in read-only memory (ROM), random-access memory (RAM), and keep-alive memory (KAM), for example.
- KAM is a persistent or non-volatile memory that may be used to store various operating variables while the CPU is powered down.
- Computer-readable storage devices or media may be implemented using any of a number of known memory devices such as PROMs (programmable read-only memory), EPROMs (electrically PROM), EEPROMs (electrically erasable PROM), flash memory, or any other electric, magnetic, optical, or combination memory devices capable of storing data, some of which represent executable instructions, used by the control module 100 in controlling or coordinating operation of the heating system 46 .
- PROMs programmable read-only memory
- EPROMs electrically PROM
- EEPROMs electrically erasable PROM
- flash memory or any other electric, magnetic, optical, or combination memory devices capable of storing data, some of which represent executable instructions, used by the control module 100 in controlling or coordinating operation of the heating system 46 .
- the control module 100 is in communication with the first heating element 90 , the second heating element 92 , and the third heating element 94 of the heating system 46 as well as in communication with a fluid temperature sensor 102 and/or an ambient temperature sensor 104 .
- the control module 100 may receive a signal indicative of a temperature of the exhaust fluid 40 from the fluid temperature sensor 102 and may receive a signal indicative of an ambient air temperature from the ambient temperature sensor 104 .
- the control module 100 commands the heating system 46 to operate, responsive to at least one of the signals indicating a fluid temperature being less than a fluid temperature threshold or an ambient temperature being less than ambient temperature threshold.
- the control module 100 may command the heating system 46 to operate the third heating element 94 by providing electrical power to the third heating element 94 . Should the temperature of the exhaust fluid 40 not rise above the fluid temperature threshold, the control module 100 may command the heating system 46 to operate at least one of the first heating element 90 and the second heating element 92 by providing electrical power to at least one of the first heating element 90 and the second heating element 92 . If the temperature of the exhaust fluid 40 becomes greater than the fluid temperature threshold, the control module 100 may command the heating system 46 to cease operation by ceasing the provision of electrical power to the first heating element 90 , the second heating element 92 , and the third heating element 94 .
- the control module 100 may command the heating system 46 to operate at least one of the first heating element 90 and the second heating element 92 , responsive to at least one of the signals indicating a fluid temperature being less than a fluid temperature threshold or an ambient temperature being less than ambient temperature threshold.
- the control module 100 may command that electrical power be provided to at least one of the first heating element 90 and the second heating element 92 at least until the temperature of the exhaust fluid 40 becomes greater than the fluid temperature threshold.
- electrical power may be provided to at least one of the first heating element 90 and the second heating element 92 continuously.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
- The subject disclosure relates to an exhaust fluid tank provided with an exhaust system.
- Some vehicles incorporate diesel engines that may be provided with an exhaust system that is configured to reduce the amount of regulated constituents that may be emitted by the vehicle. The exhaust system may make use of fluids that are mixed with the exhaust gases prior to release into the external operating environment of the vehicle. The fluids may be stored in a storage tank that may freeze when the vehicle is exposed to freezing temperatures.
- Accordingly, it is desirable to provide an exhaust fluid system capable of inhibiting or thawing the fluid that may be stored in the storage tank.
- In one exemplary embodiment an exhaust system is provided. The exhaust system includes an exhaust pipe that extends from an internal combustion engine and an exhaust fluid system that is operatively connected to the exhaust pipe. The exhaust fluid system is configured to inject an exhaust fluid into the exhaust pipe. The exhaust fluid system includes an exhaust fluid tank and a heating system disposed within the exhaust fluid tank. The exhaust fluid tank has a base with an inner base surface and an outer base surface each extending between a first end wall, a second end wall, a first side wall, and a second side wall, each wall having an inner surface and an outer surface.
- In addition to one or more of the features described herein, the heating system includes a first heating element that is disposed on the inner base surface.
- In addition to one or more of the features described herein, the heating system includes a second heating element that is disposed on the inner surface of at least one of the first side wall and the second side wall.
- In addition to one or more of the features described herein, the first heating element is spray deposited on the inner base surface and the second heating element is spray deposited on the inner surface of at least one of the first side wall and the second side wall.
- In addition to one or more of the features described herein, the first heating element and the second heating element are electrically conductive coatings.
- In addition to one or more of the features described herein, a thermally conductive coating is disposed on at least one of the first heating element and the second heating element.
- In addition to one or more of the features described herein, a solid plate disposed on at least one of the first heating element and the second heating element.
- In addition to one or more of the features described herein, the heating system includes a first heating element that is disposed between the inner base surface and the outer base surface.
- In addition to one or more of the features described herein, the heating system includes a second heating element that is disposed between the inner surface and the outer surface of at least one of the first side wall and the second side wall.
- In addition to one or more of the features described herein, the heating system includes a first heating element that extends between the first side wall and the second side wall.
- In addition to one or more of the features described herein, the first heating element engages the inner base surface.
- In addition to one or more of the features described herein, the heating system includes a second heating element that is spaced apart from the first heating element and extends between the first side wall and the second side wall.
- In addition to one or more of the features described herein, the second heating element engages the inner base surface.
- In addition to one or more of the features described herein, a third heating element is disposed on the outer base surface.
- In addition to one or more of the features described herein, the internal combustion engine is a diesel engine.
- In another exemplary embodiment an exhaust fluid tank is provided. The exhaust fluid tank includes a base having an inner base surface and an outer surface; a first end wall, a second end wall, a first side wall, and a second side wall, each extending from the base and each wall having an inner surface and an outer surface; and a first heating element that is disposed between the inner base surface and the outer base surface.
- In addition to one or more of the features described herein, a second heating element is disposed between the inner surface and the outer surface of at least one of the first side wall and the second side wall.
- In yet another exemplary embodiment an exhaust fluid tank is provided. The exhaust fluid tank includes a base having an inner base surface and an outer surface extending between a first end wall, a second end wall, a first side wall, and a second side wall, each extending from the base and each having an inner surface and an outer surface. The exhaust fluid tank further includes a first heating element that is disposed on the inner base surface.
- In addition to one or more of the features described herein, a second heating element is disposed on at least one of the inner surface of at least one of the first side wall and the second side wall.
- In addition to one or more of the features described herein, the exhaust system is provided for after-treatment of diesel exhaust.
- The above features and advantages, and other features and advantages of the disclosure are readily apparent from the following detailed description when taken in connection with the accompanying drawings.
- Other features, advantages and details appear, by way of example only, in the following detailed description, the detailed description referring to the drawings in which:
-
FIG. 1 is a schematic side view of an exhaust system; -
FIG. 2 is a schematic section view of an exhaust fluid tank; -
FIG. 3 is a partial sectional view of a heating system of the exhaust fluid tank; -
FIG. 4 is a partial sectional view of a heating system of the exhaust fluid tank; and -
FIG. 5 is a partial sectional view of a heating system of the exhaust fluid tank. - The following description is merely exemplary in nature and is not intended to limit the present disclosure, its application or uses.
- In accordance with an exemplary embodiment, an
exhaust system 10 is shown inFIG. 1 . Theexhaust system 10 may be provided with a vehicle that incorporates aninternal combustion engine 12, such as, a gasoline engine, a diesel engine, a flex fuel engine, a fuel cell, a hybrid engine, or the like. Theexhaust system 10 is provided for the after-treatment of exhaust gases. - The
exhaust system 10 includes anexhaust pipe 20 and anexhaust fluid system 22. Theexhaust pipe 20 is operatively connected to theinternal combustion engine 12 and extends from theinternal combustion engine 12. Theexhaust pipe 20 directs exhaust gases from theinternal combustion engine 12 through exhaust treatment devices and noise attenuation devices. Theexhaust pipe 20 defines aninjection port 30 that fluidly connects theexhaust fluid system 22 to theexhaust pipe 20. - The
exhaust fluid system 22 is operatively connected to theexhaust pipe 20 via theinjection port 30. Theexhaust fluid system 22 may be a diesel exhaust fluid system that is configured to inject anexhaust fluid 40 into theexhaust pipe 20 for after-treatment of diesel exhaust gases to reduce the concentration of certain exhaust constituents or compounds that may be present within the exhaust gases. Theexhaust fluid system 22 includes anexhaust fluid tank 42, anexhaust fluid pump 44, and aheating system 46. - As shown in
FIG. 1 , theexhaust fluid tank 42 is positioned proximate theexhaust pipe 20 and is arranged to store theexhaust fluid 40. Referring toFIGS. 1, 2, and 3 theexhaust fluid tank 42 includes abase 50, afirst side wall 52, asecond side wall 54, afirst end wall 56, asecond end wall 58, and acover 60. - The
base 50 includes aninner base surface 70 and anouter base surface 72 that is disposed opposite theinner base surface 70. Thefirst side wall 52 and thesecond side wall 54 are disposed opposite each other and extend from thebase 50 towards thecover 60. Thefirst end wall 56 and thesecond end wall 58 are disposed opposite each other and extend between thefirst side wall 52 and thesecond side wall 54. Thefirst end wall 56 and thesecond end wall 58 extend from thebase 50 towards thecover 60. Thecover 60 is disposed opposite thebase 50 and extends between thefirst side wall 52, thesecond side wall 54, thefirst end wall 56, and thesecond end wall 58. Each wall, i.e. thefirst side wall 52, thesecond side wall 54, thefirst end wall 56, and thesecond end wall 58, and thecover 60 include an inner surface (74 a, 74 b, 74 c, 74 d, 74 e, respectively) and an outer surface (76 a, 76 b, 76 c, 76 d, 76 e, respectively). The inner surfaces and theinner base surface 70 define an interior of theexhaust fluid tank 42 and the outer surfaces and theouter base surface 72 define an exterior of theexhaust fluid tank 42. - Referring to
FIG. 1 , theexhaust fluid pump 44 extends at least partially through thecover 60 of theexhaust fluid tank 42. Theexhaust fluid pump 44 is fluidly connected to theexhaust fluid tank 42 by afirst fluid conduit 80 that extends into theexhaust fluid tank 42 and is fluidly connected to theexhaust pipe 20 by asecond fluid conduit 82. The firstfluid conduit 80 extends into the interior of theexhaust fluid tank 42 and is connected to an inlet of theexhaust fluid pump 44. The secondfluid conduit 82 extends from an outlet of theexhaust fluid pump 44 to theinjection port 30. - The
exhaust fluid 40 may freeze while ambient air temperatures are below freezing. Theheating system 46 is provided to thaw or inhibit freezing of theexhaust fluid 40 within theexhaust fluid tank 42. Referring toFIGS. 1 and 2 , theheating system 46 may include afirst heating element 90, asecond heating element 92, and athird heating element 94. Thefirst heating element 90, thesecond heating element 92, and thethird heating element 94 are electrically connected to a power source and provide heating while electrically powered. - Referring to
FIGS. 2-5 , thefirst heating element 90 and thesecond heating element 92 are disposed within theexhaust fluid tank 42. Thefirst heating element 90 engages theinner base surface 70. Thesecond heating element 92 engages theinner surface 74 a of thefirst side wall 52 and/or theinner surface 74 b of thesecond side wall 54. - Referring to
FIG. 3 , thefirst heating element 90 and thesecond heating element 92 may be conductive coatings that are applied to theinner base surface 70 and theinner surface 74 a of thefirst side wall 52 and/or theinner surface 74 b of thesecond side wall 54, respectively. The conductive coating may be spray deposited on theinner base surface 70 and at least one of theinner surface 74 a of thefirst side wall 52 and/or theinner surface 74 b of thesecond side wall 54. The conductive coating is a thermally conductive coating that may include a conductive material, a resistive material, and a thermal dielectric material. - The conductive material is deposited on or sprayed on a substrate, a dielectric material that is disposed on the on the
inner base surface 70 and theinner surface 74 a of thefirst side wall 52 and/or theinner surface 74 b of thesecond side wall 54, or directly on theinner base surface 70 and theinner surface 74 a of thefirst side wall 52 and/or theinner surface 74 b of thesecond side wall 54. The conductive material is a material that is thermally or electrically conductive. - The resistive material is deposited on or sprayed on the conductive material. The resistive material is material that is selected to convert electrical energy to thermal energy. In at least one embodiment, the conductive material and the resistive material are mixed together and applied to a substrate or directly on the
inner base surface 70 and theinner surface 74 a of thefirst side wall 52 and/or theinner surface 74 b of thesecond side wall 54. - The thermal dielectric material may be deposited on or sprayed on the resistive material. The thermal dielectric material may be a composition that may aid in the heat transfer of the heat generated by the resistive material into the
exhaust fluid 40. In at least one embodiment, a sealant may be applied over the conductive coating to protect the conductive coating. - In at least one embodiment, a solid plate may be disposed on or bonded to at least one of the
first heating element 90 and thesecond heating element 92. The solid plate is a metallic thermally conductive plate that transfers heat generated by at least one of thefirst heating element 90 and/or thesecond heating element 92 to theexhaust fluid 40. A sealant or adhesive may be applied between the solid plate and an inner surface of the dieselexhaust fluid tank 42 to operatively connect the solid plate to the interior of the dieselexhaust fluid tank 42. In further embodiments, thefirst heating element 90 and thesecond heating element 92 may be embedded within the solid plate and the solid plate is disposed on theinner base surface 70 and theinner surface 74 a of thefirst side wall 52 and/or theinner surface 74 b of thesecond side wall 54. - Referring to
FIGS. 2 and 4 , thefirst heating element 90 and thesecond heating element 92 may be induction heaters, bus wires, a heating grid, thermally conductive elements, or resistive heating elements that are disposed within thebase 50 and/or the first andsecond side walls exhaust fluid tank 42. - The
first heating element 90 may be disposed or embedded within thebase 50 such that thefirst heating element 90 is disposed between theinner base surface 70 and theouter base surface 72. Thefirst heating element 90 may be molded into thebase 50 of theexhaust fluid tank 42. Thesecond heating element 92 may be disposed or embedded within a wall of theexhaust fluid tank 42 such that thesecond heating element 92 is disposed between the inner surface 74 and the outer surface 76 of at least one of the first side wall 52 (i.e. 74 a, 76 a), the second side wall 54 (i.e. 74 b, 76 b), and the cover 60 (i.e. 74 e, 76 e). Thesecond heating element 92 may be molded into at least one of thefirst side wall 52 and thesecond side wall 54. - Referring to
FIG. 1 , thethird heating element 94 may be incorporated with theexhaust fluid pump 44. Thethird heating element 94 may be provided with or run along the firstfluid conduit 80 to provide heating to the firstfluid conduit 80 and/orexhaust fluid 40 that is disposed proximate the firstfluid conduit 80. - Referring to
FIGS. 1 and 2 , thethird heating element 94 may be disposed on an exterior surface of theexhaust fluid tank 42. For example, thethird heating element 94 may be provided with a blanket that is disposed about at least a portion of theexhaust fluid tank 42. In such a configuration, thethird heating element 94 may disposed on or engage theouter base surface 72. - The
third heating element 94 may provide primary heating of theexhaust fluid 40 within theexhaust fluid tank 42. Thefirst heating element 90 and thesecond heating element 92 may provide secondary heating of theexhaust fluid 40 within theexhaust fluid tank 42. - Referring to
FIG. 5 , thefirst heating element 90 and thesecond heating element 92 may be configured as inserts or plate heaters that are inserted into theexhaust fluid tank 42. Thefirst heating element 90 and thesecond heating element 92 are each inserted into the interior of theexhaust fluid tank 42 and are spaced apart from each other. Thefirst heating element 90 and thesecond heating element 92 each extend between the base 50, thefirst side wall 52, and thesecond side wall 54. Thefirst heating element 90 and thesecond heating element 92 each engage theinner base surface 70 and theinner surface 74 a of thefirst side wall 52 and/or theinner surface 74 b of thesecond side wall 54. - Coordination of operation of the
heating system 46 may be dictated or controlled by acontrol module 100 that is in communication with theheating system 46, as shown inFIG. 1 . Thecontrol module 100 may be a controller that is in communication with an overall vehicle controller or may be integrated with the overall vehicle controller. - The
control module 100 may include a microprocessor or central processing unit (CPU) in communication with various types of computer readable storage devices or media. Computer readable storage devices or media may include volatile and nonvolatile storage in read-only memory (ROM), random-access memory (RAM), and keep-alive memory (KAM), for example. KAM is a persistent or non-volatile memory that may be used to store various operating variables while the CPU is powered down. Computer-readable storage devices or media may be implemented using any of a number of known memory devices such as PROMs (programmable read-only memory), EPROMs (electrically PROM), EEPROMs (electrically erasable PROM), flash memory, or any other electric, magnetic, optical, or combination memory devices capable of storing data, some of which represent executable instructions, used by thecontrol module 100 in controlling or coordinating operation of theheating system 46. - The
control module 100 is in communication with thefirst heating element 90, thesecond heating element 92, and thethird heating element 94 of theheating system 46 as well as in communication with afluid temperature sensor 102 and/or anambient temperature sensor 104. - The
control module 100 may receive a signal indicative of a temperature of theexhaust fluid 40 from thefluid temperature sensor 102 and may receive a signal indicative of an ambient air temperature from theambient temperature sensor 104. - The
control module 100 commands theheating system 46 to operate, responsive to at least one of the signals indicating a fluid temperature being less than a fluid temperature threshold or an ambient temperature being less than ambient temperature threshold. - The
control module 100 may command theheating system 46 to operate thethird heating element 94 by providing electrical power to thethird heating element 94. Should the temperature of theexhaust fluid 40 not rise above the fluid temperature threshold, thecontrol module 100 may command theheating system 46 to operate at least one of thefirst heating element 90 and thesecond heating element 92 by providing electrical power to at least one of thefirst heating element 90 and thesecond heating element 92. If the temperature of theexhaust fluid 40 becomes greater than the fluid temperature threshold, thecontrol module 100 may command theheating system 46 to cease operation by ceasing the provision of electrical power to thefirst heating element 90, thesecond heating element 92, and thethird heating element 94. - The
control module 100 may command theheating system 46 to operate at least one of thefirst heating element 90 and thesecond heating element 92, responsive to at least one of the signals indicating a fluid temperature being less than a fluid temperature threshold or an ambient temperature being less than ambient temperature threshold. Thecontrol module 100 may command that electrical power be provided to at least one of thefirst heating element 90 and thesecond heating element 92 at least until the temperature of theexhaust fluid 40 becomes greater than the fluid temperature threshold. In at least one embodiment, electrical power may be provided to at least one of thefirst heating element 90 and thesecond heating element 92 continuously. - While the above disclosure has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from its scope. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the disclosure without departing from the essential scope thereof. Therefore, it is intended that the present disclosure not be limited to the particular embodiments disclosed, but will include all embodiments falling within the scope thereof.
Claims (20)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/658,777 US20190032534A1 (en) | 2017-07-25 | 2017-07-25 | Exhaust fluid tank provided with an exhaust system |
CN201810806763.3A CN109296423A (en) | 2017-07-25 | 2018-07-18 | It is provided with the fluid drainage slot of exhaust system |
DE102018117867.0A DE102018117867A1 (en) | 2017-07-25 | 2018-07-24 | Exhaust fluid tank provided with an exhaust system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/658,777 US20190032534A1 (en) | 2017-07-25 | 2017-07-25 | Exhaust fluid tank provided with an exhaust system |
Publications (1)
Publication Number | Publication Date |
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US20190032534A1 true US20190032534A1 (en) | 2019-01-31 |
Family
ID=65004364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US15/658,777 Abandoned US20190032534A1 (en) | 2017-07-25 | 2017-07-25 | Exhaust fluid tank provided with an exhaust system |
Country Status (3)
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US (1) | US20190032534A1 (en) |
CN (1) | CN109296423A (en) |
DE (1) | DE102018117867A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US41392A (en) * | 1864-01-26 | Samuel j | ||
US20050252201A1 (en) * | 2004-05-17 | 2005-11-17 | Lecea Oscar A | Method and apparatus for reducing NOx emissions |
US7930878B2 (en) * | 2007-02-27 | 2011-04-26 | Ford Global Technologies, Llc | Method and apparatus for rapidly thawing frozen NOx reductant |
US8327623B2 (en) * | 2009-12-23 | 2012-12-11 | General Electric Company | Method and system for utilization of regenerative braking electrical energy for operating auxiliary system in an off-highway vehicle |
US20120315196A1 (en) * | 2010-01-13 | 2012-12-13 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Apparatus having a tank and a delivery unit for reducing agent |
US8448426B2 (en) * | 2007-09-14 | 2013-05-28 | Inergy Automotive Systems Research | Method for heating an SCR system using resistive heating elements |
US20150026474A1 (en) * | 2011-03-29 | 2015-01-22 | Sigmoid Solutions Limited | Managed authentication on a distributed network |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010529394A (en) * | 2007-02-20 | 2010-08-26 | サーモセラミツクス・インコーポレーテツド | Gas heating apparatus and method |
US20150264747A1 (en) * | 2008-05-30 | 2015-09-17 | Thermoceramix, Inc. | Radiant heating using heater coatings |
DE102010029269A1 (en) * | 2010-05-25 | 2011-12-01 | Robert Bosch Gmbh | Fluid tank for use in fluid heating system, for storing aqueous urea solution to reduce nitrogen oxide in exhaust gas of diesel engine of motor car, has heating element connected with cooling system such that fluid in tank volume is heated |
KR101459463B1 (en) * | 2013-04-29 | 2014-11-10 | 현대자동차 주식회사 | Tank unit storing urea solution |
CN204212839U (en) * | 2014-10-22 | 2015-03-18 | 亚普汽车部件股份有限公司 | A kind of heating arrangement of urea casing |
GB2533099A (en) * | 2014-12-09 | 2016-06-15 | Daimler Ag | Method for providing heating to a diesel exhaust fluid (DEF) tank and diesel exhaust fluid (DEF) tank |
US10634033B2 (en) * | 2015-12-10 | 2020-04-28 | Continental Automotive Gmbh | Tank system for a reducing agent |
-
2017
- 2017-07-25 US US15/658,777 patent/US20190032534A1/en not_active Abandoned
-
2018
- 2018-07-18 CN CN201810806763.3A patent/CN109296423A/en active Pending
- 2018-07-24 DE DE102018117867.0A patent/DE102018117867A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US41392A (en) * | 1864-01-26 | Samuel j | ||
US20050252201A1 (en) * | 2004-05-17 | 2005-11-17 | Lecea Oscar A | Method and apparatus for reducing NOx emissions |
US7930878B2 (en) * | 2007-02-27 | 2011-04-26 | Ford Global Technologies, Llc | Method and apparatus for rapidly thawing frozen NOx reductant |
US8534054B2 (en) * | 2007-02-27 | 2013-09-17 | Ford Global Technologies, Llc | Method and apparatus for rapidly thawing frozen NOx reductant |
US8448426B2 (en) * | 2007-09-14 | 2013-05-28 | Inergy Automotive Systems Research | Method for heating an SCR system using resistive heating elements |
US8327623B2 (en) * | 2009-12-23 | 2012-12-11 | General Electric Company | Method and system for utilization of regenerative braking electrical energy for operating auxiliary system in an off-highway vehicle |
US20120315196A1 (en) * | 2010-01-13 | 2012-12-13 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Apparatus having a tank and a delivery unit for reducing agent |
US20150026474A1 (en) * | 2011-03-29 | 2015-01-22 | Sigmoid Solutions Limited | Managed authentication on a distributed network |
Also Published As
Publication number | Publication date |
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CN109296423A (en) | 2019-02-01 |
DE102018117867A1 (en) | 2019-01-31 |
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