# US 10,865,681 B2 · Substrate shape, geometry, positioning, and/or cell density to improve aftertreatment performance > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,865,681 B2 - Document ID: US10865681B2 - Status: Granted - Kind: B2 - Application number: 15/781,433 - Filed: 2017-10-20 - Published: 2019-08-01 - Granted: 2020-12-15 - Earliest claimed: 2016-10-21 - Assignees: Cummins Emission Solutions Inc. - Applicants: Cummins Emission Solutions Inc. - Inventors: John G. Buechler; Randolph G. Zoran; Ryan M. Johnson; Stephen M. Holl; Taren DeHart; Jim L. Alonzo; Matthew L. Anderson; Apoorv Kalyankar; George Eugene Mavroudis; Gaurav Hemant Pandit - Web page: https://patentgrep.com/patent/US10865681B2 ## CPC - F01N 3/208: {Control of selective catalytic reduction [SCR], e.g. by adjusting the dosing of reducing agent} - F01N 3/0215: {the filtering elements having the form of disks or plates} - F01N 3/022: characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous - F01N 3/2066: {Selective catalytic reduction [SCR]} - F01N 3/2803: {characterised by structure, by material or by manufacturing of catalyst support} - F01N 3/2882: {Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices (combined with absorbents or adsorbents only F01N3/0814; combined with particulate filters F01N3/035)} - B01D 53/9418: {for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas} - B01D 53/944: {Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts (three-way-catalysts [TWC] B01D53/9445)} - F01N 2330/30: Honeycomb supports characterised by their structural details - F01N 2330/60: Discontinuous, uneven properties of filter material, e.g. different material thickness along the longitudinal direction; Higher filter capacity upstream than downstream in same housing - 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) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract An aftertreatment component's shape, entrance geometry, and/or position within an aftertreatment assembly can be modified for local and/or bulk exhaust flow control. In some implementations, a body of the aftertreatment component has a non-circular cross-section, a non-circular opening, and/or a variable face geometry. The non-circular cross-section and/or opening can be of a variety of different shapes. ## Claims ### Claim 1 A radial aftertreatment component comprising: a substrate having a radial exterior surface, and a radial interior surface defining a central axial inlet or outlet, the substrate including a channel formed therethrough from a first end at the radial exterior surface to a second end at the radial interior surface, wherein, in a cross-section of the substrate, the second end of the channel is tangential to the radial interior surface. ### Claim 2 (depends on 1) The radial aftertreatment component of claim 1, wherein the substrate is a substrate for a filter or a catalyst. ### Claim 3 (depends on 1) The radial aftertreatment component of claim 1 further comprising an upstream end coupled to an aftertreatment system. ### Claim 4 (depends on 1) The radial aftertreatment component of claim 1 further comprising a downstream end coupled to an aftertreatment system. ### Claim 5 (depends on 1) The radial aftertreatment component of claim 1, wherein the first end of the channel is perpendicular to the radial exterior surface. ### Claim 6 (depends on 1) The radial aftertreatment component of claim 1, wherein the first end of the channel is oblique to the radial exterior surface. ### Claim 7 (depends on 1) The radial aftertreatment component of claim 1, wherein the first end of the channel is larger than the second end of the channel. ### Claim 8 (depends on 1) The radial aftertreatment component of claim 1, wherein the channel includes grooves or vanes. ### Claim 9 (depends on 1) The radial aftertreatment component of claim 1, wherein at least a portion of the channel is curved. ### Claim 10 A radial aftertreatment component comprising: a substrate having a radial exterior surface, and a radial interior surface defining a central axial inlet or outlet, the substrate including a channel formed therethrough from a first end at the radial exterior surface to a second end at the radial interior surface, wherein, in a cross-section of the substrate, the channel has an S-shape. ### Claim 11 A radial aftertreatment component comprising: a substrate having a radial exterior surface, and a radial interior surface defining a central axial inlet or outlet, the substrate including a channel formed therethrough from a first end at the radial exterior surface to a second end at the radial interior surface, wherein the channel has a shape having at least a portion that is angled in a cross-section of the substrate, and wherein the channel comprises a first end and a second end opposite the first end, wherein the first end is larger than the second end.