Spool assemblies for aftertreatment systems

Abstract

An aftertreatment system includes an aftertreatment component assembly including a housing and an aftertreatment component disposed within the housing. The aftertreatment system includes a first electronic component, a second electronic component, a first post assembly coupled to the housing, and a spool assembly. The spool assembly is separated from the housing by the first post assembly. The spool assembly includes a spool that is rotatably coupled to the first post assembly. The aftertreatment system includes a wire coupled to the first electronic component and the second electronic component. The wire includes a first portion wrapped around the spool.

Description

Atty. Dkt. No.: 106389-9663SPOOL ASSEMBLIES FOR AFTERTREATMENT SYSTEMSCROSS-REFERENCE TO RELATED APPLICATION

[0001] The present application claims priority to and the benefit of U.S. Provisional Patent Application No. 63 / 716,368, filed on November 5, 2024, the entire disclosure of which is incorporated herein by reference for all purposes.TECHNICAL FIELD

[0002] The present disclosure relates generally to spool assemblies for aftertreatment systems of internal combustion engines.BACKGROUND

[0003] Nitrogen oxide (NOx) compounds are emitted in exhaust from internal combustion engines such as diesel engines. It is desirable to reduce NOx emissions to comply with environmental regulations, for example. To reduce NOx emissions, a reductant may be dosed into the exhaust by a dosing system, and within an aftertreatment system. The reductant facilitates conversion of a portion of the exhaust into non-NOxemissions, such as nitrogen (N2), carbon dioxide (CO2), and water (H2O), thereby reducing NOx emissions. The aftertreatment system may include electronic components connected by a wire. The wire facilitates communication between the electronic components. In some aftertreatment systems, there is excess wire that may be exposed to sharp edges and high heat surfaces. It is often desirable to provide a wire coiling device to coil and retain the excess wire away from the sharp edges and high heat surfaces.SUMMARY

[0004] Depending on the configuration of an aftertreatment system, electronic components may be connected by a wire. In some aftertreatment systems, there may be excess wire between the electronic components. If not properly coiled, this excess wire may be exposed to sharp edges or high heat surfaces within the aftertreatment system that may cause damage to the wire.

[0005] Certain embodiments of the present disclosure may address these issues.4906-1248-0620 - 1 -Atty. Dkt. No.: 106389-9663

[0006] In one embodiment, an aftertreatment system includes an aftertreatment component assembly. The aftertreatment component assembly includes a housing and an aftertreatment component disposed within the housing. The aftertreatment system includes a first electronic component, a second electronic component, and a first post assembly coupled to the housing. The aftertreatment system includes a spool assembly separated from the housing by the first post assembly. The spool assembly includes a spool that is rotatably coupled to the first post assembly. The aftertreatment system includes a wire coupled to the first electronic component and the second electronic component. The wire including a first portion wrapped around the spool.

[0007] In one embodiment, which is combinable with any of the above-described embodiments, the aftertreatment system further includes a second post assembly coupled to the housing. The second post assembly includes a wire guide. The wire includes a second portion extending through the wire guide. The wire guide is configured to facilitate guiding of the second portion relative to the second post assembly and to separate the second portion from the housing.

[0008] In one embodiment, which is combinable with any of the above-described embodiments, the spool assembly further includes a fastener. The spool includes a first spool aperture. The fastener extends through the first spool aperture and couples the spool assembly to the first post assembly.

[0009] In one embodiment, which is combinable with any of the above-described embodiments, the spool includes a first lip having a first lip notch, a second lip having a second lip notch, and a recessed portion disposed between the first lip and the second lip. The first portion is wrapped around the recessed portion. The spool further includes a second spool aperture disposed radially inward of the first lip, the second lip, and the recessed portion. The spool assembly further includes a retainer extending through the second spool aperture, the first lip notch, and the second lip notch. The first portion extends between the retainer and the recessed portion.

[0010] In one embodiment, which is combinable with any of the above-described embodiments, the spool assembly further includes an inner sleeve. The inner sleeve includes a first inner sleeve aperture. The spool assembly includes a fastener extending through the first inner sleeve4906-1248-0620 - 2 -Atty. Dkt. No.: 106389-9663 aperture and coupling the spool assembly to the first post assembly. The spool is rotatably coupled to the inner sleeve such that the spool is rotatable relative to the inner sleeve.

[0011] In one embodiment, which is combinable with any of the above-described embodiments, the spool having a spool indentation disposed on an inner surface. The inner sleeve has an inner sleeve protrusion disposed on an outer surface. The inner sleeve protrusion engages with the spool indentation so as to secure the spool on the inner sleeve.

[0012] In one embodiment, which is combinable with any of the above-described embodiments, the spool includes a first lip having a first lip notch, a second lip having a second lip notch, and a recessed portion disposed between the first lip and the second lip. The first portion is wrapped around the recessed portion. The inner sleeve further includes a second inner sleeve aperture disposed radially inward of the first lip, the second lip, and the recessed portion. The spool assembly further includes a retainer extending through the second inner sleeve aperture, the first lip notch, and the second lip notch. The first portion extends between the retainer and the recessed portion.

[0013] In one embodiment, which is combinable with any of the above-described embodiments a radius of the recessed portion is between 4 times a diameter of the wire and 10 times a diameter of the wire.

[0014] In one embodiment, an aftertreatment system includes an aftertreatment component assembly. The aftertreatment component assembly includes a housing and an aftertreatment component disposed within the housing. The aftertreatment system includes a first post assembly coupled to the housing and a spool assembly separated from the housing by the first post assembly. The spool assembly includes an inner sleeve coupled to the first post assembly and a spool rotatably coupled to the inner sleeve. The aftertreatment system includes a wire including a first portion wrapped around the spool.

[0015] In one embodiment, which is combinable with any of the above-described embodiments, the aftertreatment system includes a second post assembly coupled to the housing. The second post assembly includes a wire guide. The wire includes a second portion extending through the4906-1248-0620 - 3 -Atty. Dkt. No.: 106389-9663 wire guide. The wire guide is configured to facilitate guiding of the second portion relative to the second post assembly and to separate the second portion from the housing.

[0016] In one embodiment, which is combinable with any of the above-described embodiments, the inner sleeve includes a first inner sleeve aperture. The spool assembly further includes a fastener extending through the first inner sleeve aperture and coupling the spool assembly to the first post assembly. The spool is rotatably coupled to the inner sleeve such that the spool is rotatable relative to the inner sleeve.

[0017] In one embodiment, which is combinable with any of the above-described embodiments, the spool has a spool indentation disposed on an inner surface. The inner sleeve has an inner sleeve protrusion disposed on an outer surface. The inner sleeve protrusion engages with the spool indentation so as to secure the spool on the inner sleeve.

[0018] In one embodiment, which is combinable with any of the above-described embodiments, the spool includes a first lip having a first lip notch, a second lip having a second lip notch, and a recessed portion disposed between the first lip and the second lip. The first portion is wrapped around the recessed portion. The inner sleeve further includes a second inner sleeve aperture disposed radially inward of the first lip, the second lip, and the recessed portion. The spool assembly further includes a retainer extending through the second inner sleeve aperture, the first lip notch, and the second lip notch. The first portion extends between the retainer and the recessed portion.

[0019] In one embodiment, which is combinable with any of the above-described embodiments, a radius of the recessed portion is between 4 times a diameter of the wire and 10 times the diameter of the wire.

[0020] In one embodiment, an aftertreatment system includes an aftertreatment component assembly. The aftertreatment component assembly includes a housing and an aftertreatment component disposed within the housing. The aftertreatment system includes a first post assembly coupled to the housing and a spool assembly separated from the housing by the first post assembly. The spool assembly including a spool that is rotatably coupled to the first post assembly. The spool includes a first lip, a second lip disposed opposite the first lip, and a4906-1248-0620 - 4 -Atty. Dkt. No.: 106389-9663 recessed portion disposed between the first lip and the second lip. The aftertreatment system includes a wire including a first portion wrapped around the recessed portion.

[0021] In one embodiment, which is combinable with any of the above-described embodiments, the aftertreatment system further includes a second post assembly coupled to the housing. The second post assembly includes a wire guide. The wire includes a second portion extending through the wire guide. The wire guide is configured to facilitate guiding of the second portion relative to the second post assembly and to separate the second portion from the housing.

[0022] In one embodiment, which is combinable with any of the above-described embodiments, the spool assembly further includes a fastener. The spool includes a first spool aperture. The fastener extends through the first spool aperture and couples the spool assembly to the first post assembly.

[0023] In one embodiment, which is combinable with any of the above-described embodiments, the first lip has a first lip notch and the second lip has a second lip notch. The spool further includes a second spool aperture disposed radially inward of the first lip, the second lip, and the recessed portion. The spool assembly further includes a retainer extending through the second spool aperture, the first lip notch, and the second lip notch. The first portion extends between the retainer and the recessed portion.

[0024] In one embodiment, which is combinable with any of the above-described embodiments, a radius of the recessed portion is between 4 times a diameter of the wire and 10 times a diameter of the wire.

[0025] In one embodiment, which is combinable with any of the above-described embodiments, the spool assembly further includes an inner sleeve including a first inner sleeve aperture and a fastener extending through the first inner sleeve aperture and coupling the spool assembly to the first post assembly. The spool is rotatably coupled to the inner sleeve such that the spool is rotatable relative to the inner sleeve.

[0026] This summary is illustrative only and is not intended to be in any way limiting. Other aspects, inventive features, and advantages of the devices or processes described herein will4906-1248-0620 - 5 -Atty. Dkt. No.: 106389-9663 become apparent in the detailed description set forth herein, taken in conjunction with the accompanying figures, wherein like reference numerals refer to like elements.BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The details of one or more implementations are set forth in the accompanying drawings and the descriptions below. Other features, aspects, and advantages of the disclosure will become apparent from the description, the drawings, and the claims, in which:

[0028] FIG. 1 is a schematic diagram of an example power system including an aftertreatment system;

[0029] FIG. 2 is a schematic diagram of an example aftertreatment system;

[0030] FIG. 3 is a perspective view of a portion of an example aftertreatment system;

[0031] FIG. 4 is a perspective view of a portion of another example aftertreatment system;

[0032] FIG. 5 is a perspective view of a portion of another example aftertreatment system;

[0033] FIG. 6 is a perspective view of a portion of another example aftertreatment system;

[0034] FIG. 7 is a perspective cross-sectional view of a portion of another example aftertreatment system;

[0035] FIG. 8 is cross-sectional view of a portion of another example aftertreatment system;

[0036] FIG. 9 is a cross-sectional view of a portion of another example aftertreatment system; and

[0037] FIG. 10 is a diagram of a portion of another example aftertreatment system.

[0038] It will be recognized that the Figures are schematic representations for purposes of illustration. The Figures are provided for the purpose of illustrating one or more implementations with the explicit understanding that the Figures will not be used to limit the scope or the meaning of the claims.4906-1248-0620 - 6 -Atty. Dkt. No.: 106389-9663DETAILED DESCRIPTION

[0039] Following below are more detailed descriptions of various concepts related to, and implementations of, method, apparatuses, and for providing a spool assembly on an aftertreatment system of an internal combustion engine. The various concepts introduced above and discussed in greater detail below may be implemented in any way of a number of ways, as the described concepts are not limited to any particular manner of implementation. Examples of specific implementations and applications are provided primarily for illustrative purposes.I. Overview

[0040] Aftertreatment systems include electronic components (e.g., sensors, etc.) that monitor the status of the aftertreatment system (e.g. NOx levels, soot levels, temperature, etc.). The electronic components are coupled to a wire which facilitates communication between the electronic components. In some situations, there is excess wire between electronic components. In some aftertreatment systems, the excess wire is coiled, by hand, and retained. These aftertreatment systems may fail to prevent exposure of the wire to relatively sharp edges and / or high heat surfaces (e g., 500 degrees Celsius, etc.) that may cause damage to the wire.

[0041] Implementations described herein are related to an aftertreatment system including a spool assembly. The aftertreatment system includes a housing and an aftertreatment component disposed within the housing. The spool assembly is configured to coil and retain excess wire away from relatively sharp edges and high heat surfaces of the aftertreatment system. The spool assembly is rotatable relative to a housing of an aftertreatment component assembly. The spool assembly allows for repeatable coiling of the wire to a coil with a target diameter. The wire is retained on the spool assembly using a retainer (e.g., zip tie, etc.) to ensure the wire will remain coiled. The spool assembly is coupled to a first post assembly providing separation of the spool assembly, and therefore the wire coiled and retained on the spool assembly, from the housing. In this way, the spool assembly assists in mitigating the risk of damage to the wire. The aftertreatment system may further include a second post assembly including a wire guide (e.g., loop, hook, etc.), providing a guide for the wire to traverse as it is coiled on the spool assembly while facilitating separation of another portion of the wire from the housing, thus assisting in further mitigating the risk of damage to the wire. The spool assembly may be configured to4906-1248-0620 - 7 -Atty. Dkt. No.: 106389-9663 facilitate coiling of more than one wire. In some embodiments, the aftertreatment system has more than one spool assembly.II. Example Power System

[0042] FIG. 1 depicts a power system 100. In some embodiments, the power system 100 is a vehicle power system or other power system. The power system 100 includes an engine 104 (e.g., an internal combustion engine, etc.). The engine 104 is configured to (e.g., structured to, able to, etc.) receive a fluid mixture of fuel (e.g., diesel, gasoline, hydrogen, biodiesel, etc.) and air, combust the fluid mixture, and provide exhaust as a result of the combustion of the fluid mixture.

[0043] The power system 100 further includes a battery 106 (e.g., on-vehicle battery, energy storage device, capacitor, fuel cell, etc.). The battery 106 is configured to provide electrical power to one or more components of the power system 100. For example, the battery 106 may provide electrical power to fuel igniters (e.g., spark plugs, glow plugs, etc.), controllers (e g., engine control unit, etc.), lights, an air conditioning unit, motors, displays, or the like, of the power system 100. Additionally, the battery 106 may be utilized for powering the power system 100 (e.g., for powering electric driving motors where the power system 100 is a vehicle power system and the vehicle power system includes a hybrid vehicle, etc.). In embodiments in which the engine 104 is a spark-ignition engine, the battery 106 may be electrically or communicatively coupled to the engine 104 and provide electrical power to spark plugs of the engine 104.

[0044] The power system 100 also includes an alternator 108 (e.g., a generator, etc.). The alternator 108 is configured to convert mechanical power produced by the engine 104 into electrical power. The alternator 108 may be electrically or communicatively coupled to the battery 106 and configured to provide the electrical power to the battery 106 (i.e., to charge the battery 106, etc.). For example, in embodiments where the power system 100 is a vehicle power system that includes a vehicle that is moving, rotational energy provided by the engine 104 may be provided to movement members (e.g., wheels, etc.) and the alternator 108 via a serpentine belt drive system. The alternator 108 may charge the battery 106.4906-1248-0620 - 8 -Atty. Dkt. No.: 106389-9663

[0045] The power system 100 further includes an aftertreatment system 110 (e.g., treatment system, etc.). The aftertreatment system 110 is disposed downstream of the engine 104. The aftertreatment system 110 is configured to treat the exhaust produced by the engine 104. In this way, the aftertreatment system 110 may facilitate reduction of undesirable byproducts of combustion of the fuel by the engine 104.III. Example Aftertreatment System

[0046] FIG. 2 depicts the aftertreatment system 110, according to an exemplary embodiment. The aftertreatment system 110 includes an exhaust conduit system 112 (e.g., line, pipe, etc.). The exhaust conduit system 112 is configured to receive the exhaust from the engine 104 via an inlet 114.

[0047] The aftertreatment system 110 further includes a particulate filter 116 (e.g., a diesel particulate filter (DPF), etc ). The particulate filter 116 is coupled to the exhaust conduit system 112 and configured to remove particulate matter, such as soot, from the exhaust flowing in the exhaust conduit system 112. The particulate filter 116 includes an inlet, where the exhaust is received, and an outlet, where the exhaust exits after having particulate matter substantially filtered from the exhaust and / or converting the particulate matter into CO2. In some embodiments, the particulate filter 116 is omitted from the aftertreatment system 110.

[0048] The aftertreatment system 110 further includes a decomposition chamber 118 (e.g., reactor, reactor pipe, conduit, housing, etc.) disposed downstream of the particulate filter 116. The decomposition chamber 118 is configured to receive the exhaust from the particulate filter 116. The aftertreatment system 110 further includes a treatment fluid delivery system 120 coupled to the decomposition chamber 118. The treatment fluid delivery system 120 is configured to deliver treatment fluid to the decomposition chamber 118. The treatment fluid may be, for example, a reductant (e.g., a urea, a diesel exhaust fluid (DEF), Adblue®, a urea water solution (UWS), an aqueous urea solution (e.g., AUS32, etc.), and / or other similar fluids) or a hydrocarbon fluid (e.g., a fuel, an oil, an additive, etc.). When the reductant is introduced into the exhaust, reduction of emission of undesirable components (e.g., NOx, etc.) in the exhaust may be facilitated.4906-1248-0620 - 9 -Atty. Dkt. No.: 106389-9663

[0049] When the hydrocarbon fluid is introduced into the exhaust, the temperature of the exhaust may be increased (e.g., to facilitate regeneration of components of the aftertreatment system 110, etc.). For example, the aftertreatment system 110 may include an igniter 122 (e g., spark plug, etc.) configured to increase the temperature of the exhaust by combusting the hydrocarbon fluid within the exhaust. The decomposition chamber 118 includes an inlet in fluid communication with the particulate filter 116 to receive the exhaust containing NOx emissions and an outlet for the exhaust, NOx emissions, ammonia, and / or the treatment fluid to flow to downstream components of the aftertreatment system 110.

[0050] The treatment fluid delivery system 120 includes a doser assembly 124 (e.g., a dosing module, etc.) configured to dose the treatment fluid into the decomposition chamber 118 (e.g., via an injector). The doser assembly 124 is coupled to (e.g., mounted to, affixed to, fastened to, etc.) the decomposition chamber 118 such that the doser assembly 124 may dose the treatment fluid into the exhaust flowing through the exhaust conduit system 112.

[0051] The doser assembly 124 is fluidly coupled to (e.g., fluidly configured to communicate with, etc.) a treatment fluid source 126. The treatment fluid source 126 may include multiple treatment fluid sources 126. The treatment fluid source 126 may be, for example, a diesel exhaust fluid tank containing Adblue®. A treatment fluid pump 128 (e.g., a supply unit, etc.) is used to pressurize the treatment fluid from the treatment fluid source 126 for delivery to the doser assembly 124. In some embodiments, the treatment fluid pump 128 is pressure-controlled (e.g., controlled to obtain a target pressure, etc.). The treatment fluid pump 128 may include a treatment fluid filter 130. The treatment fluid filter 130 filters (e.g., strains, etc.) the treatment fluid prior to the treatment fluid being provided to internal components (e.g., pistons, vanes, etc.) of the treatment fluid pump 128. For example, the treatment fluid filter 130 may inhibit or prevent the transmission of solids (e g., solidified treatment fluid, contaminants, etc.) to the internal components of the treatment fluid pump 128. In this way, the treatment fluid filter 130 may facilitate prolonged desirable operation of the treatment fluid pump 128. In embodiments where the power system 100 is a vehicle power system and the vehicle power system includes a vehicle, the treatment fluid pump 128 is coupled (e.g., fastened, attached, affixed, welded, etc.) to a chassis of the vehicle.4906-1248-0620 - 10 -Atty. Dkt. No.: 106389-9663

[0052] The doser assembly 124 includes at least one injector 132. Each of the injectors 132 is configured to dose the treatment fluid into the exhaust (e.g., within the decomposition chamber 118, etc.) at an injection axis 134. The aftertreatment system 110 may include a mixer 136 (e.g., a mixing body assembly, a swirl generating device, a vane plate, an inlet plate, a deflector plate, etc.). In some embodiments, at least a portion of the mixer 136 may be located within the decomposition chamber 118. In further embodiments, at least a portion of the mixer 136 may also be located in a conduit of the exhaust conduit system 112 (e.g., a conduit upstream of the decomposition chamber 118, etc.). The mixer 136 is configured to receive the exhaust from the decomposition chamber 118 and the treatment fluid from the injector 132.

[0053] The mixer 136 is also configured to facilitate mixing of the exhaust and the treatment fluid. The mixer 136 is configured to facilitate swirling (e.g., tumbling, rotation, etc.) of the exhaust and / or the treatment fluid and mixing (e.g., combination, etc.) of the exhaust and the treatment fluid so as to disperse the treatment fluid within the exhaust downstream of the mixer 136. By dispersing the treatment fluid within the exhaust (e.g., to obtain an increased uniformity index, etc.) using the mixer 136, reduction of emission of undesirable components in the exhaust is enhanced.

[0054] In some embodiments, the injection axis 134 extends into the mixer 136. The injection axis 134 may extend into the mixer 136 at an angle relative to a central axis of the mixer 136. For example, in some embodiments, the injection axis 134 may be substantially coincident with the central axis of the mixer 136. In other embodiments, the injection axis 134 may be substantially perpendicular to the central axis of the mixer 136. In yet other embodiments, the injection axis 134 may be substantially parallel to the central axis of the mixer 136.

[0055] In some embodiments, the injector 132 is not directly coupled to the mixer 136. In these embodiments, the injector 132 and the mixer 136 may each be coupled to a same component (e.g., a housing, a panel, a chamber, a body, etc.). In other embodiments, the injector 132 is directly coupled to the mixer 136. In these embodiments, the injector 132 and the mixer 136 may also each be coupled to the same component. In some embodiments, the injector 132 is not disposed within the mixer 136. In other embodiments, the injector 132 may be at least partially disposed within the mixer 136.4906-1248-0620 - 11 -Atty. Dkt. No.: 106389-9663

[0056] The treatment fluid delivery system 120 may include an air pump 138. The air pump 138 draws air from an air source 140 (e.g., an air intake, etc.) through an air filter 142 disposed upstream of the air pump 138 and provides the air to the doser assembly 124 via a conduit. In these embodiments, the doser assembly 124 is configured to mix the air and the treatment fluid into an air-treatment fluid mixture and to provide the air-treatment fluid mixture into the decomposition chamber 118. In other embodiments, the treatment fluid delivery system 120 does not include the air pump 138, the air source 140, and / or the air filter 142. In such embodiments, the doser assembly 124 is not configured to mix the treatment fluid with the air.

[0057] The aftertreatment system 110 includes an aftertreatment component assembly 180. The aftertreatment component assembly 180 further includes an aftertreatment component 144. In some embodiments, the aftertreatment component 144 includes a catalyst member (e.g., a Selective Catalytic Reduction (SCR) catalyst member, etc.) disposed downstream of the decomposition chamber 118. As a result, the treatment fluid is injected upstream of the catalyst member such that the catalyst member receives a mixture of the treatment fluid and exhaust. Droplets of the treatment fluid undergo processes of evaporation, thermolysis, and hydrolysis to form non-NOx emissions (e.g., gaseous ammonia, etc.) within the exhaust conduit system 112. In other embodiments, the aftertreatment component 144 includes an oxidation catalyst member (e.g., a diesel oxidation catalyst (DOC), an ammonia oxidation catalyst (AMOx), etc ). In yet other embodiments, the aftertreatment component 144 includes a particulate filter (e.g., the particulate filter 116, etc.).

[0058] The aftertreatment component 144 includes an upstream face in fluid communication with the decomposition chamber 118 from which the exhaust and the treatment fluid are received and a downstream face in fluid communication with an outlet 146 of the exhaust conduit system 112. The outlet 146 may release the treated exhaust into an ambient environment or another treatment system.

[0059] The aftertreatment system 110 may further include an oxidation catalyst member (e.g., a diesel oxidation catalyst (DOC), an ammonia oxidation catalyst (AMOx), etc.) in fluid communication with the exhaust conduit system 112 (e.g., downstream of the aftertreatment component 144, upstream of the aftertreatment component 144, upstream of the particulate4906-1248-0620 - 12 -Atty. Dkt. No.: 106389-9663 filter 116, upstream of the decomposition chamber 118, etc.) to oxidize hydrocarbons and carbon monoxide in the exhaust.

[0060] In some embodiments, the particulate filter 116 may be positioned downstream of the decomposition chamber 118. For instance, the particulate filter 116 and the aftertreatment component 144 may be combined into a single unit.

[0061] The aftertreatment system 110 may further include a doser mounting bracket 148 (e.g., a coupler, a plate, etc.). The doser mounting bracket 148 couples the doser assembly 124 to a component of the aftertreatment system 110 (e.g., the decomposition chamber 118, etc.). The doser mounting bracket 148 may be configured as an insulator (e.g., a vibrational insulator, a thermal insulator, etc.). For example, the doser mounting bracket 148 may be configured to mitigate the transfer of heat from the exhaust passing through the exhaust conduit system 112 and / or the decomposition chamber 118 to the doser assembly 124. In this way, the doser assembly 124 is capable of operating more efficiently. The doser mounting bracket 148 may be configured to mitigate transfer of vibrations from components of the aftertreatment system 110 (e.g., the exhaust conduit system 112, the decomposition chamber 118, etc.) to the doser assembly 124. The doser mounting bracket 148 may be configured to aid in reliable installation of the doser assembly 124, thereby decreasing manufacturing costs associated with the aftertreatment system 110 and ensuring repeated desirable installation of the doser assembly 124.

[0062] In various embodiments, the doser mounting bracket 148 couples the doser assembly 124 to the decomposition chamber 118. In some embodiments, the doser mounting bracket 148 couples the doser assembly 124 to a conduit of the exhaust conduit system 112. For example, the doser mounting bracket 148 may couple the doser assembly 124 to a conduit of the exhaust conduit system 112 that is upstream of the decomposition chamber 118. In some embodiments, the doser mounting bracket 148 couples the doser assembly 124 to the particulate filter 116 and / or the aftertreatment component 144. The location of the doser mounting bracket 148 may be varied depending on the application of the aftertreatment system 110. For example, in some aftertreatment systems 110, the doser mounting bracket 148 may be located further upstream than in other aftertreatment systems 110. Furthermore, some aftertreatment systems 110 may4906-1248-0620 - 13 -Atty. Dkt. No.: 106389-9663 include multiple doser assemblies 124 and therefore may include multiple doser mounting brackets 148.

[0063] As illustrated in FIGS. 1 and 2, the power system 100 further includes a controller 150 (e.g., a vehicle power system controller, a treatment fluid delivery system controller, etc.). The controller 150 is electrically or communicatively coupled to the igniter 122. The controller 150 may control the igniter 122 to ignite the treatment fluid in the decomposition chamber 118. For example, where the controller 150 may cause the igniter 122 to provide an electrical arc in a region traversed by the hydrocarbon fluid, and the electrical arc may ignite the hydrocarbon fluid. The controller 150 is electrically or communicatively coupled to the doser assembly 124. The controller 150 may control the doser assembly 124 to dose the treatment fluid into the decomposition chamber 118. The controller 150 is electrically or communicatively coupled to the treatment fluid pump 128 and / or the air pump 138. The controller 150 may also control operations of the treatment fluid pump 128 and / or the air pump 138. The controller 150 is electrically or communicatively coupled to the engine 104. The controller 150 may also control operations of the engine 104 (e.g., spark plug ignition, fuel injection, etc.). The controller 150 is also electrically or communicatively coupled to the battery 106 and / or the alternator 108. The controller may also control power input and / or power output from and / or to the battery 106 and / or the alternator 108.

[0064] The controller 150 includes a processing circuit 152. The processing circuit 152 includes a processor 154 and a memory 156. The processor 154 may include a microprocessor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), etc., or combinations thereof. The memory 156 may include, but is not limited to, electronic, optical, magnetic, or any other storage or transmission device capable of providing the processor 154 with program instructions. This memory 156 may include a memory chip, Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), flash memory, or any other suitable memory from which the controller 150 can read instructions. The instructions may include code from any suitable programming language. The memory 156 may include various modules that include instructions which are configured to be implemented by the processor 154.4906-1248-0620 - 14 -Atty. Dkt. No.: 106389-9663

[0065] The controller 150 may be configured to communicate with a central controller 160 (e.g., engine control unit (ECU), engine control module (ECM), etc.) of the engine 104. In some embodiments, the central controller 160 and the controller 150 are integrated into a single controller.

[0066] In some embodiments, the central controller 160 is communicable with a display device (e.g., a screen, a monitor, a touch screen, a heads up display (HUD), an indicator light, etc.). The display device may be configured to change state in response to receiving information from the central controller 160. For example, the display device may be configured to change between a static state (e.g., displaying a green light, displaying a “SYSTEM OK” message, etc.) and an alarm state (e.g., displaying a blinking red light, displaying a “SERVICE NEEDED” message, etc.) based on a communication from the central controller 160. By changing state, the display device may provide an indication to a user (e.g., an operator, a technician, etc.) of a status (e.g., operation, in need of service, etc.) of the treatment fluid delivery system 120 and / or the power system 100.

[0067] As illustrated in FIG. 1 the aftertreatment system 110 further includes an aftertreatment component assembly 180. The aftertreatment component assembly 180 includes an aftertreatment component 144, as previously described. The aftertreatment component assembly 180 includes a housing 170. The aftertreatment component 144 is disposed within the housing 170. The housing 170 protects the aftertreatment component 144 from external environmental conditions (e.g., debris, moisture, temperature fluctuations, etc.).

[0068] FIGS. 3-6 depict the aftertreatment system 110 including a first electronic component 202. The first electronic component 202 is coupled to the housing 170. The first electronic component 202 is configured to monitor, control, and / or regulate operational parameters of the aftertreatment component assembly 180 (e.g., temperature levels, NOx levels, soot levels, particulate matter (PM) levels, etc.). In some embodiments, the first electronic component 202 is a sensor (e.g., a temperature sensor, NOx sensor, PM sensor, diesel particular filter (DPF) sensor, etc.). In some embodiments, the first electronic component 202 is an actuator (e.g., injector 132, etc.). In other embodiments, the first electronic component 202 is at least one of the igniter 122, the doser assembly 124, or the controller 150.4906-1248-0620 - 15 -Atty. Dkt. No.: 106389-9663

[0069] The aftertreatment system 110 further includes a second electronic component 204. The second electronic component 204 is coupled to the housing 170. The second electronic component 204 is configured to monitor, control, and / or regulate operational parameters of the aftertreatment component assembly 180 (e.g., temperature levels, NOx levels, soot levels, PM levels, etc.). In some embodiments, the second electronic component 204 is a sensor (e.g., a temperature sensor, NOx sensor, PM sensor, DPF sensor, etc.). In some embodiments, the second electronic component 204 is an actuator (e.g., injector 132, etc.) In other embodiments, the second electronic component 204 is at least one of the igniter 122, the doser assembly 124, or the controller 150.

[0070] In some embodiments, the first electronic component 202 is different from the second electronic component 204. For example, the first electronic component 202 is the controller 150 and the second electronic component 204 is at least one of a sensor, an actuator, the igniter 122, or the doser assembly 124. In other embodiments, the first electronic component 202 is the same as the second electronic component 204. For example, the first electronic component 202 and the second electronic component 204 may be sensors. Some embodiments include a third electronic component 234, as shown in FIG. 5, for example. The third electronic component 234 is at least one of an actuator, a sensor, the igniter 122, the doser assembly 124, or the controller 150.

[0071] The aftertreatment system 110 further includes a wire 206 (e.g., metal core with rubber insulation, etc.). The wire 206 is coupled to the first electronic component 202 and the second electronic component 204. The wire 206 is configured for electrical communication between the first electronic component 202 and the second electronic component 204. In some embodiments, the wire 206 is a power wire that is configured to supply power to the first electronic component 202 or the second electronic component 204. In other embodiments, the wire 206 is a data wire that is configured to transmit sensor signals (e.g., analog signals, digital signals, etc.), control commands (e.g., ECM commands to actuators, etc.), or diagnostic information (e.g., diagnostic information from sensors to the ECM, etc.) between the first electronic component 202 and the second electronic component 204. In other embodiments, the wire 206 is configured to be a ground connection.4906-1248-0620 - 16 -Atty. Dkt. No.: 106389-9663

[0072] In some embodiments, the first electronic component 202 and second electronic component 204 are coupled to more than one wire 206. For example, the first electronic component 202 and second electronic component 204 are coupled to a power wire configured to supply power from the first electronic component 202 to the second electronic component 204 and a data wire configured to transmit data from the second electronic component 204 to the first electronic component 202.

[0073] In another example, the first electronic component 202 and the second electronic component 204 are coupled to a power wire configured to provide power from the first electronic component 202 to the second electronic component 204 and a ground wire configured to provide a ground connection. In embodiments with a first electronic component 202, second electronic component, 204, and third electronic component 234, the wire 206 may be coupled to the first electronic component 202 and the second electronic component 204 and a second wire 206 may be coupled to the first electronic component 202 and the third electronic component 234 (e.g., a data wire coupled to a sensor and the ECM and a data wire coupled to an actuator and the ECM). In some embodiments, there is excess wire 206 between the first electronic component 202 and the second electronic component 204, as shown in FIG. 5, for example.

[0074] The aftertreatment system 110 further includes a first post assembly 208 (e.g., a rod, a post, etc.). The first post assembly 208 is coupled to the housing 170. The first post assembly 208 is configured to support the separation of the wire 206 from the housing 170 of the aftertreatment component assembly 180 through a spool assembly 200. In some embodiments, the aftertreatment system 110 includes more than one first post assembly 208 coupled to the housing 170. In some embodiments, the first post assembly 208 includes a threaded post that is threadably coupled to a threaded opening in the housing 170. In other embodiments, the first post assembly 208 includes a post that is welded to the housing 170.

[0075] The aftertreatment system 110 further includes a spool assembly 200. The spool assembly 200 is separated from the housing by the first post assembly 208. The spool assembly 200 is rotatably coupled to the first post assembly 208 and secured with a fastener 210 (e.g., bolt, screw, etc.). The spool assembly 200 is configured to enable coiling and / or storage of the4906-1248-0620 - 17 -Atty. Dkt. No.: 106389-9663 wire 206 while maintaining physical separation between the wire 206 and the housing 170. In some embodiments, the spool assembly 200 includes a spool 212, further including an aperture, and an inner sleeve 214. In some embodiments, the aftertreatment system 110 includes multiple spool assemblies 200. For example, the aftertreatment system 110 includes a first spool assembly 200 stacked on a second spool assembly 200 such that the first spool assembly 200 and the second spool assembly 200 are configured to rotate simultaneously, as shown in FIG. 6.

[0076] The aftertreatment system 110 includes a second post assembly 216 (e.g., rod, post, etc.). The second post assembly 216 is coupled to the housing 170 and is configured to separate an uncoiled portion (e.g., second portion) of the wire 206 from the housing 170. The second post assembly 216 includes a wire guide 218 (e.g., loop, hook, etc.). The wire guide 218 is configured to retain a portion of the wire 206 relative to the second post assembly 216. The wire guide 218 is configured to provide a guide for the wire 206 to traverse as it is coiled on the spool assembly 200. The wire guide 218 is further configured to facilitate separation of the second portion of wire 206 from the housing 170.

[0077] In some embodiments, there is more than one second post assembly 216 configured to guide the uncoiled wire 206. For example, a portion of the wire 206, starting at the first electronic component 202, is coiled and retained on the spool assembly 200, another portion of the wire 206 extends through the wire guide 218 and is retained relative to the second post assembly 216, and another portion of wire 206 extends through another wire guide 218 and is retained relative to another second post assembly 216, the wire 206 is then guided to the second electronic component 204, as shown in FIG, 3. In some embodiments, the wire guide 218 is adjustable to fit more than one wire 206, as shown in FIG. 5, for example.

[0078] In various embodiments, the second post assembly 216 includes a threaded post that is coupled to a threaded opening in the housing 170. In other embodiments, the second post assembly 216 includes a post that is welded to the housing 170.4906-1248-0620 - 18 -Atty. Dkt. No.: 106389-9663IV. Example Spool Assembly

[0079] FIGS. 7-9 depict the spool assembly 200, according to exemplary embodiments. As described above, the spool assembly 200 is configured to accommodate coiling of a portion of wire 206 (e.g., first portion), while maintaining separation of the wire 206 and the housing 170.

[0080] The spool assembly 200 includes a spool 212. The spool 212 is configured to facilitate wrapping of a portion of the wire 206 (e.g., a first portion). The first portion of the wire 206 is wrapped around the spool 212. The spool 212 includes a first spool aperture 230. The first spool aperture 230 is disposed in the center of the spool 212.

[0081] The spool assembly 200 includes a fastener 210. The fastener 210 extends through the first spool aperture 230 into the first post assembly 208 coupling the spool assembly 200 to the first post assembly 208. In some embodiments, the fastener 210 extends through the first spool aperture 230 into the first post assembly 208 and is partially tightened to allow rotation of the spool assembly 200 on the axis of the fastener 210 and relative to the first post assembly 208. When the wire 206 is coiled around the spool assembly 200, the fastener 210 is then fully tightened to the first post assembly 208 preventing rotation of the spool assembly 200.

[0082] In some embodiments, the spool assembly 200 includes an inner sleeve 214. In these embodiments, the inner sleeve 214 is disposed within the first spool aperture 230. The spool 212 is rotatably coupled to the inner sleeve 214 such that the spool 212 is rotatable relative to the inner sleeve 214. The inner sleeve 214 is configured to provide an axis of rotation for the spool 212. The spool 212 is configured to rotate about the inner sleeve 214 to facilitate the wrapping of the first portion of the wire 206 (e.g., in a uniform manner, etc.) around the spool 212.

[0083] The inner sleeve 214 includes an inner sleeve protrusion 240. The inner sleeve protrusion 240 is disposed on an outer surface of the inner sleeve 214. The spool 212 includes a spool indentation 242. The spool indentation 242 is disposed on an inner surface of the spool 212. The inner sleeve protrusion 240 engages with the spool indentation 242 so as to secure the spool 212 on the inner sleeve 214.4906-1248-0620 - 19 -Atty. Dkt. No.: 106389-9663

[0084] The inner sleeve 214 further includes a first inner sleeve aperture 236. The first inner sleeve aperture 236 extends through the center of the inner sleeve 214. The fastener 210 extends through the first inner sleeve aperture 236 and into the first post assembly 208 coupling the spool assembly 200 to the first post assembly 208.

[0085] In some embodiments, the inner sleeve 214 is made from a first material and the spool 212 is made from a second material that is different from the first material. For example, the inner sleeve 214 may be made from metal (e.g., iron, steel, etc.) while the spool 212 is made from a polymer or plastic.

[0086] In some embodiments, the spool assembly 200 further includes a bearing (e.g., roller bearing, ball bearing, needle bearing, etc.). The bearing is disposed between the inner sleeve 214 and the spool 212. The bearing may be configured to facilitate rotation of the spool 212 relative to the inner sleeve 214.

[0087] The spool 212 further includes a first lip 220 having a first lip notch 222. The spool 212 further includes a second lip 224 having a second lip notch 226. The spool 212 further includes a recessed portion 228 disposed between the first lip 220 and the second lip 224. The recessed portion 228 is an axis for which the wire 206 is coiled on. For example, the first portion of wire 206 is wrapped around the recessed portion 228. The first lip 220 and the second lip 224 are configured to facilitate the retention of the wire 206 on the recessed portion 228.

[0088] The recessed portion 228 has a radius (e.g., radius A). In some embodiments, the radius of the recessed portion 228 is a function of the diameter of the wire 206 (e.g., diameter A). In some embodiments, the radius of the recessed portion 228 is between 4 times a diameter of the wire and 10 times the diameter of the wire, as shown in FIG. 10.

[0089] The spool assembly 200 further includes a second spool aperture 238. The second spool aperture 238 is disposed radially inward of the first lip 220, the second lip 224, and the recessed portion 228. The second spool aperture 238 is configured to provide access through the spool 212 from the first lip 220 to the second lip 224. In some embodiments, the spool 212 has a plurality of second spool apertures 238, as shown in FIG. 6.4906-1248-0620 - 20 -Atty. Dkt. No.: 106389-9663

[0090] The spool assembly 200 further includes a retainer 232. The retainer 232 is configured to extend through the second spool aperture 238, the first lip notch 222, and the second lip notch 226. The retainer 232 is then tightened to retain the first portion of wire 206 between the retainer 232 and the recessed portion 228. The retainer 232 prevents the displacement of the wire 206 as the aftertreatment system 110 is exposed to various environments (e.g., driving, etc.).

[0091] In embodiments that include the inner sleeve 214, the spool assembly 200 further includes a second inner sleeve aperture 244, as shown in FIG. 6. The second inner sleeve aperture 244 is disposed radially inward of the first lip 220, the second lip 224, and the recessed portion 228. The second inner sleeve aperture 244 is configured to provide access through the inner sleeve 214 from the first lip 220 to the second lip 224. In these embodiments, the retainer 232 is configured to extend through the second inner sleeve aperture 244, the first lip notch 222, and the second lip notch 226. The retainer 232 is then tightened to retain the wire 206 between the recessed portion 228 and the retainer 232. The first portion of the wire 206 extends between the retainer 232 and the recessed portion 228.V. Configuration of Example Embodiments

[0092] While this specification contains many specific implementation details, these should not be construed as limitations on the scope of what may be claimed but rather as descriptions of features specific to particular implementations. Certain features described in this specification in the context of separate implementations can also be implemented in combination in a single implementation. Conversely, various features described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination. Moreover, although features may be described as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can, in some cases, be excised from the combination, and the claimed combination may be directed to a subcombination or variation of a subcombination.

[0093] As utilized herein, the terms “substantially,” “generally,” “approximately,” and similar terms are intended to have a broad meaning in harmony with the common and accepted usage4906-1248-0620 - 21 -Atty. Dkt. No.: 106389-9663 by those of ordinary skill in the art to which the subject matter of this disclosure pertains. It should be understood by those of skill in the art who review this disclosure that these terms are intended to allow a description of certain features described and claimed without restricting the scope of these features to the precise numerical ranges provided. Accordingly, these terms should be interpreted as indicating that insubstantial or inconsequential modifications or alterations of the subject matter described and claimed are considered to be within the scope of the appended claims.

[0094] The term “coupled” and the like, as used herein, mean the joining of two components directly or indirectly to one another. Such joining may be stationary (e.g., permanent) or moveable (e.g., removable or releasable). Such joining may be achieved with the two components or the two components and any additional intermediate components being integrally formed as a single unitary body with one another, with the two components, or with the two components and any additional intermediate components being attached to one another.

[0095] The terms “fluidly coupled to” and the like, as used herein, mean the two components or objects have a pathway formed between the two components or objects in which a fluid, such as air, exhaust, liquid reductant, gaseous reductant, aqueous reductant, gaseous ammonia, etc., may flow, either with or without intervening components or objects. Examples of fluid couplings or configurations for enabling fluid communication may include piping, channels, or any other suitable components for enabling the flow of a fluid from one component or object to another.

[0096] It is important to note that the construction and arrangement of the various systems shown in the various example implementations is illustrative only and not restrictive in character. All changes and modifications that come within the spirit and / or scope of the described implementations are desired to be protected. It should be understood that some features may not be necessary, and implementations lacking the various features may be contemplated as within the scope of the disclosure, the scope being defined by the claims that follow. When the language “a portion” is used, the item can include a portion and / or the entire item unless specifically stated to the contrary.4906-1248-0620 - 22 -Atty. Dkt. No.: 106389-9663

[0097] Also, the term “or” is used, in the context of a list of elements, in its inclusive sense (and not in its exclusive sense) so that when used to connect a list of elements, the term “or” means one, some, or all of the elements in the list. Conjunctive language such as the phrase “at least one of X, Y, and Z,” unless specifically stated otherwise, is otherwise understood with the context as used in general to convey that an item, term, etc. may be either X, Y, Z, X and Y, X and Z, Y and Z, or X, Y, and Z (i.e., any combination of X, Y, and Z). Thus, such conjunctive language is not generally intended to imply that certain embodiments require at least one of X, at least one of Y, and at least one of Z to each be present, unless otherwise indicated.

[0098] Additionally, the use of ranges of values (e.g., W1 to W2, etc.) herein are inclusive of their maximum values and minimum values (e.g., W1 to W2 includes W 1 and includes W2, etc.), unless otherwise indicated. Furthermore, a range of values (e.g., W1 to W2, etc.) does not necessarily require the inclusion of intermediate values within the range of values (e.g., W1 to W2 can include only W1 and W2, etc.), unless otherwise indicated.4906-1248-0620 - 23 -

Claims

Atty. Dkt. No.: 106389-9663WHAT IS CLAIMED IS:

1. An aftertreatment system comprising: an aftertreatment component assembly comprising: a housing, and an aftertreatment component disposed within the housing; a first electronic component; a second electronic component; a first post assembly coupled to the housing; a spool assembly separated from the housing by the first post assembly, the spool assembly comprising a spool that is rotatably coupled to the first post assembly; and a wire coupled to the first electronic component and the second electronic component, the wire comprising a first portion wrapped around the spool.

2. The aftertreatment system of claim 1, further comprising: a second post assembly coupled to the housing, the second post assembly comprising a wire guide, wherein: the wire comprises a second portion extending through the wire guide; and the wire guide is configured to facilitate guiding of the second portion relative to the second post assembly and to separate the second portion from the housing.

3. The aftertreatment system of claim 1, wherein: the spool assembly further comprises a fastener; the spool comprises a first spool aperture; and the fastener extends through the first spool aperture and couples the spool assembly to the first post assembly.

4. The aftertreatment system of claim 3, wherein: the spool comprises: a first lip having a first lip notch, a second lip having a second lip notch, and4906-1248-0620 24Atty. Dkt. No.: 106389-9663 a recessed portion disposed between the first lip and the second lip; the first portion is wrapped around the recessed portion; the spool further comprises a second spool aperture disposed radially inward of the first lip, the second lip, and the recessed portion; the spool assembly further comprises a retainer extending through the second spool aperture, the first lip notch, and the second lip notch; and the first portion extends between the retainer and the recessed portion.

5. The aftertreatment system of claim 1, wherein: the spool assembly further comprises: an inner sleeve comprising a first inner sleeve aperture, and a fastener extending through the first inner sleeve aperture and coupling the spool assembly to the first post assembly; and the spool is rotatably coupled to the inner sleeve such that the spool is rotatable relative to the inner sleeve.

6. The aftertreatment system of claim 5, wherein: the spool having a spool indentation disposed on an inner surface; the inner sleeve having an inner sleeve protrusion disposed on an outer surface; and the inner sleeve protrusion engages with the spool indentation so as to secure the spool on the inner sleeve.

7. The aftertreatment system of claim 5, wherein: the spool comprises: a first lip having a first lip notch, a second lip having a second lip notch, and a recessed portion disposed between the first lip and the second lip; the first portion is wrapped around the recessed portion; the inner sleeve further comprises a second inner sleeve aperture disposed radially inward of the first lip, the second lip, and the recessed portion;4906-1248-0620 25Atty. Dkt. No.: 106389-9663 the spool assembly further comprises a retainer extending through the second inner sleeve aperture, the first lip notch, and the second lip notch; and the first portion extends between the retainer and the recessed portion.

8. The aftertreatment system of claim 7, wherein a radius of the recessed portion is between 4 times a diameter of the wire and 10 times the diameter of the wire.

9. An aftertreatment system comprising: an aftertreatment component assembly comprising: a housing; and an aftertreatment component disposed within the housing; a first post assembly coupled to the housing; a spool assembly separated from the housing by the first post assembly, the spool assembly comprising: an inner sleeve coupled to the first post assembly, and a spool rotatably coupled to the inner sleeve; and a wire comprising a first portion wrapped around the spool.

10. The aftertreatment system of claim 9, further comprising: a second post assembly coupled to the housing, the second post assembly comprising a wire guide; wherein: the wire comprises a second portion extending through the wire guide; and the wire guide is configured to facilitate guiding of the second portion relative to the second post assembly and to separate the second portion from the housing.

11. The aftertreatment system of claim 9, wherein: the inner sleeve comprises a first inner sleeve aperture; the spool assembly further comprises a fastener extending through the first inner sleeve aperture and coupling the spool assembly to the first post assembly; and the spool is rotatably coupled to the inner sleeve such that the spool is rotatable relative to the inner sleeve.4906-1248-0620 26Atty. Dkt. No.: 106389-966312. The aftertreatment system of claim 9, wherein: the spool having a spool indentation disposed on an inner surface; the inner sleeve having an inner sleeve protrusion disposed on an outer surface; and the inner sleeve protrusion engages with the spool indentation so as to secure the spool on the inner sleeve.

13. The aftertreatment system of claim 9, wherein: the spool comprises: a first lip having a first lip notch, a second lip having a second lip notch, and a recessed portion disposed between the first lip and the second lip; the first portion is wrapped around the recessed portion; the inner sleeve further comprises a second inner sleeve aperture disposed radially inward of the first lip, the second lip, and the recessed portion; the spool assembly further comprises a retainer extending through the second inner sleeve aperture, the first lip notch, and the second lip notch; and the first portion extends between the retainer and the recessed portion.

14. The aftertreatment system of claim 13, wherein a radius of the recessed portion is between 4 times a diameter of the wire and 10 times the diameter of the wire.

15. An aftertreatment system comprising: an aftertreatment component assembly comprising: a housing; and an aftertreatment component disposed within the housing; a first post assembly coupled to the housing; a spool assembly separated from the housing by the first post assembly, the spool assembly comprising a spool that is rotatably coupled to the first post assembly, the spool comprising: a first lip,4906-1248-0620 27Atty. Dkt. No.: 106389-9663 a second lip disposed opposite the first lip, and a recessed portion disposed between the first lip and the second lip; and a wire comprising a first portion wrapped around the recessed portion.

16. The aftertreatment system of claim 15, further comprising: a second post assembly coupled to the housing, the second post assembly comprising a wire guide; wherein: the wire comprises a second portion extending through the wire guide; and the wire guide is configured to facilitate guiding of the second portion relative to the second post assembly and to separate the second portion from the housing.

17. The aftertreatment system of claim 15, wherein: the spool assembly further comprises a fastener; the spool comprises a first spool aperture; and the fastener extends through the first spool aperture and couples the spool assembly to the first post assembly.

18. The aftertreatment system of claim 15, wherein: the first lip has a first lip notch; the second lip has a second lip notch; the spool further comprises a second spool aperture disposed radially inward of the first lip, the second lip, and the recessed portion; the spool assembly further comprises a retainer extending through the second spool aperture, the first lip notch, and the second lip notch; and the first portion extends between the retainer and the recessed portion.

19. The aftertreatment system of claim 15, wherein a radius of the recessed portion is between 4 times a diameter of the wire and 10 times the diameter of the wire.

20. The aftertreatment system of claim 15, wherein: the spool assembly further comprises:4906-1248-0620 28Atty. Dkt. No.: 106389-9663 an inner sleeve comprising a first inner sleeve aperture, and a fastener extending through the first inner sleeve aperture and coupling the spool assembly to the first post assembly; and the spool is rotatably coupled to the inner sleeve such that the spool is rotatable relative to the inner sleeve.4906-1248-0620 29

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