# US 2014/0154159 A1 · Engine Exhaust Aftertreatment Component Including Aftertreatment Brick Module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0154159 A1 - Document ID: US20140154159A1 - Status: Published application - Kind: A1 - Application number: 13/692,135 - Filed: 2012-12-03 - Published: 2014-06-05 - Earliest claimed: 2012-12-03 - Assignees: Caterpillar Inc. - Applicants: Caterpillar, Inc. - Inventors: Pradyumna Venkata Rao; Saad Hasan; Ian Aguirre; Varun Malik - Web page: https://patentgrep.com/patent/US20140154159A1 ## CPC - F01N 3/2066: {Selective catalytic reduction [SCR]} - F01N 3/2875: {by using elastic means, e.g. spring leaves, for retaining catalyst body in the housing (F01N3/2853 - F01N3/2871 take precedence)} - F01N 13/0093: {the purifying devices are of the same type} - F01N 13/0097: {the purifying devices are arranged in a single housing} - F01N 2450/30: Removable or rechangeable blocks or cartridges, e.g. for filters - F01N 2590/02: for marine vessels or naval applications - Y02T 10/12: Improving ICE efficiencies - F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16) - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract An engine exhaust aftertreatment component includes a housing defining an exhaust flow path from an exhaust inlet to an exhaust outlet. The housing supports an internal support channel. An aftertreatment brick module includes a catalytic brick, a can configured to receive the catalytic brick, and an end plate disposed along an end of the can. The end plate includes a coupling mechanism configured to be received within the internal support channel. ## Claims ### Claim 1 An engine exhaust aftertreatment component, comprising: a housing defining an exhaust flow path from an exhaust inlet to an exhaust outlet, wherein the housing supports an internal support channel; and an aftertreatment brick module including a catalytic brick, a can configured to receive the catalytic brick, and an end plate disposed along an end of the can, wherein the end plate includes a coupling mechanism configured to be received within the internal support channel. ### Claim 2 (depends on 1) The engine exhaust aftertreatment component of claim 1, wherein the internal support channel defines a slide path that is substantially transverse to the exhaust flow path. ### Claim 3 (depends on 2) The engine exhaust aftertreatment component of claim 2, further including an access opening through a side of the housing and a removable side panel positioned over the access opening, wherein the side lies in a plane substantially perpendicular to the slide path. ### Claim 4 (depends on 2) The engine exhaust aftertreatment component of claim 2, wherein the aftertreatment brick module includes an upstream end plate disposed along an upstream end of the can and a downstream end plate disposed along a downstream end of the can, wherein the upstream end plate includes an upstream opening through the upstream end plate corresponding to an upstream face of the catalytic brick and the downstream end plate includes a downstream opening through the downstream end plate corresponding to a downstream face of the catalytic brick. ### Claim 5 (depends on 4) The engine exhaust aftertreatment component of claim 4, wherein each of the upstream end plate and the downstream end plate includes a first coupling mechanism positioned along a first opposing side of a respective one of the upstream end plate and the downstream end plate, and a second coupling mechanism positioned along a second opposing side of the respective one of the upstream end plate and the downstream end plate. ### Claim 6 (depends on 5) The engine exhaust aftertreatment component of claim 5, wherein each of the first coupling mechanism and the second coupling mechanism includes an outwardly extending flange. ### Claim 7 (depends on 6) The engine exhaust aftertreatment component of claim 6, wherein each of the first coupling mechanism and the second coupling mechanism of each of the upstream end plate and the downstream end plate is configured to be received within a separate support channel. ### Claim 8 (depends on 7) The engine exhaust aftertreatment component of claim 7, wherein the outwardly extending flange terminates in a curved edge. ### Claim 9 (depends on 1) The engine exhaust aftertreatment component of claim 1, wherein at least two aftertreatment brick modules are disposed within the housing and positioned in parallel relative to the exhaust flow path. ### Claim 10 (depends on 1) The engine exhaust aftertreatment component of claim 1, wherein at least two aftertreatment brick modules are disposed within the housing and positioned in series relative to the exhaust flow path. ### Claim 11 (depends on 1) The engine exhaust aftertreatment component of claim 1, wherein the catalytic brick and the can each have a cylindrical shape. ### Claim 12 (depends on 1) The engine exhaust aftertreatment component of claim 1, wherein the catalytic brick is configured for selective catalytic reduction. ### Claim 13 An aftertreatment brick module for an engine exhaust aftertreatment component, the engine exhaust aftertreatment component including a housing defining an exhaust flow path from an exhaust inlet to an exhaust outlet, wherein the housing supports a plurality of internal support channels, the aftertreatment brick module comprising: a catalytic brick having an upstream face and a downstream face; a can defining a chamber extending from an open upstream end to an open downstream end, wherein the catalytic brick is positioned within the chamber; an upstream end plate disposed along the upstream end and including an upstream opening therethrough corresponding to the upstream face; and a downstream end plate disposed along the downstream end and including a downstream opening therethrough corresponding with the downstream face; wherein each of the upstream end plate and the downstream end plate includes a first coupling mechanism positioned along a first opposing side of a respective one of the upstream end plate and the downstream end plate, and a second coupling mechanism positioned along a second opposing side of the respective one of the upstream end plate and the downstream end plate; wherein each of the first coupling mechanism and the second coupling mechanism of each of the upstream end plate and the downstream end plate is configured to be received within a separate one of the plurality of internal support channels. ### Claim 14 (depends on 13) The aftertreatment brick module of claim 13, wherein each of the first coupling mechanism and the second coupling mechanism of each of the upstream end plate and the downstream end plate includes an outwardly extending flange. ### Claim 15 (depends on 14) The aftertreatment brick module of claim 14, wherein the outwardly extending flange terminates in a curved edge. ### Claim 16 (depends on 13) The aftertreatment brick module of claim 13, wherein the catalytic brick and the can each have a cylindrical shape. ### Claim 17 (depends on 13) The aftertreatment brick module of claim 13, wherein the catalytic brick is configured for selective catalytic reduction. ### Claim 18 A method of treating exhaust from an internal combustion engine using an aftertreatment brick module, the aftertreatment brick module including a catalytic brick, a can configured to receive the catalytic brick, and an end plate disposed along an end of the can, wherein the end plate includes a coupling mechanism, the method comprising: slidably moving the aftertreatment brick module into a housing of an engine exhaust aftertreatment component along a slide path by receiving the coupling mechanism within an internal support channel of the housing; directing exhaust from an exhaust inlet defined by the housing toward the aftertreatment brick module along an exhaust flow path; and directing exhaust from the aftertreatment brick module toward an exhaust outlet defined by the housing along the exhaust flow path, wherein the exhaust flow path is substantially transverse to the slide path. ### Claim 19 (depends on 18) The method of claim 18, further including slidably moving the aftertreatment brick module through an access opening through a side of the housing, wherein the side lies in a plane substantially perpendicular to the slide path. ### Claim 20 (depends on 18) The method of claim 18, further including positioning a plurality of aftertreatment brick modules within the housing.