# US 2014/0360161 A1 · Forced air circulation for an aftertreatment module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0360161 A1 - Document ID: US20140360161A1 - Status: Published application - Kind: A1 - Application number: 14/284,069 - Filed: 2014-05-21 - Published: 2014-12-11 - Earliest claimed: 2013-06-05 - Assignees: Caterpillar Global Mining Expanded Products Pty Ltd - Applicants: Caterpillar Global Mining Expanded Products Pty Ltd - Inventors: Rajesh Arani; Mohamed Ibrahim Sabibullah; Venkatraman Podiyanagaswamy; Guillaume Bourgoin; Jeffery Mohamed Othman - Web page: https://patentgrep.com/patent/US20140360161A1 ## CPC - F01N 3/2066: {Selective catalytic reduction [SCR]} - F01N 2260/022: using air - F01N 2610/02: the substance being ammonia or urea - F01N 2610/11: the substance or part of the dosing system being cooled - 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 A cooling system for an aftertreatment module mounted within an enclosure is provided. The cooling system includes a source of forced air in fluid communication with the enclosure. At least one duct is provided in conjunction with the source of forced air. The at least one duct is configured to direct at least a portion of the forced air from the source of forced air towards a first component of the aftertreatment module. A remaining portion of the forced air that was not directed towards to the first component is directed towards a second component of the aftertreatment module. ## Claims ### Claim 1 A cooling system for an aftertreatment module mounted within an enclosure, the cooling system comprising: a source of forced air in fluid communication with the enclosure; and at least one duct provided in conjunction with the source of forced air, the at least one duct being configured to direct at least a portion of the forced air from the source of forced air towards a first component of the aftertreatment module; wherein a remaining portion of the forced air that was not directed towards to the first component is directed towards a second component of the aftertreatment module. ### Claim 2 (depends on 1) The cooling system of claim 1, wherein the at least one duct includes a first duct and a second duct being spaced apart from each other, the second duct being provided downstream of the first duct, wherein the first duct is in fluid communication with the first component and the second duct is in fluid communication with the second component. ### Claim 3 (depends on 2) The cooling system of claim 2, wherein the first duct includes a pair of slots spaced apart from each other and in fluid communication with the source of forced air. ### Claim 4 (depends on 2) The cooling system of claim 2 further comprising a tube extending from the second duct, the tube configured to direct the remaining portion of the forced air towards the second component of the aftertreatment module. ### Claim 5 (depends on 3) The cooling system of claim 3 further comprising an insulation layer provided on the tube. ### Claim 6 (depends on 2) The cooling system of claim 2, wherein a flow passage area of the second duct is substantially greater than a flow passage area of the first duct. ### Claim 7 (depends on 1) The cooling system of claim 1 further comprising a hooded structure extending above the enclosure, wherein the source of forced air is at least partially enclosed within the hooded structure. ### Claim 8 (depends on 1) The cooling system of claim 1, wherein the first component includes electronic circuitry mounted atop the aftertreatment module. ### Claim 9 (depends on 1) The cooling system of claim 1, wherein the second component includes a reductant injector. ### Claim 10 (depends on 1) The cooling system of claim 1, wherein the source of forced air includes a fan. ### Claim 11 A method for cooling an aftertreatment module mounted within an enclosure, the method comprising: providing a source of forced air in fluid communication with the enclosure; providing at least one duct in conjunction with the source of forced air; directing at least a portion of the forced air from the source of forced air towards a first component of the aftertreatment module; and directing a remaining portion of the forced air that was not directed towards to the first component towards a second component of the aftertreatment module. ### Claim 12 (depends on 11) The method of claim 11 further comprising cooling the first component and the second component of the aftertreatment module using the forced air. ### Claim 13 A machine comprising: a power source; a frame; an aftertreatment module mounted within an enclosure located on the frame; and a cooling system for the aftertreatment module, the cooling system comprising: a source of forced air in fluid communication with the enclosure; and at least one duct provided in conjunction with the source of forced air, the at least one duct being configured to direct at least a portion of the forced air from the source of forced air towards a first component of the aftertreatment module; wherein a remaining portion of the forced air that was not directed towards to the first component is directed towards a second component of the aftertreatment module. ### Claim 14 (depends on 13) The machine of claim 13, wherein the at least one duct includes a first duct and a second duct being spaced apart from each other, the second duct being provided downstream of the first duct, wherein the first duct is in fluid communication with the first component and the second duct is in fluid communication with the second component. ### Claim 15 (depends on 14) The machine of claim 14, wherein the first duct includes a pair of slots spaced apart from each other and in fluid communication with the source of forced air. ### Claim 16 (depends on 14) The machine of claim 14 further comprising a tube extending from the second duct, the tube configured to direct the remaining portion of the forced air towards the second component of the aftertreatment module. ### Claim 17 (depends on 14) The machine of claim 14, wherein a flow passage area of the second duct is substantially greater than a flow passage area of the first duct. ### Claim 18 (depends on 13) The machine of claim 13 further comprising a hooded structure extending above the enclosure, wherein the source of forced air is at least partially enclosed within the hooded structure. ### Claim 19 (depends on 13) The machine of claim 13, wherein the first component includes electronic circuitry mounted atop the aftertreatment module. ### Claim 20 (depends on 13) The machine of claim 13, wherein the second component includes a reductant injector.