# US 2017/0284261 A1 · Device for providing a liquid additive > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0284261 A1 - Document ID: US20170284261A1 - Status: Published application - Kind: A1 - Application number: 15/621,429 - Filed: 2017-06-13 - Published: 2017-10-05 - Earliest claimed: 2014-12-16 - Assignees: Continental Automotive GmbH - Applicants: Continental Automotive GmbH - Inventors: Georges Maguin - Web page: https://patentgrep.com/patent/US20170284261A1 ## CPC - F01N 3/2066: {Selective catalytic reduction [SCR]} - F01N 3/2807: {Metal other than sintered metal (F01N3/2832 and F01N3/2835 take precedence)} - F01N 3/2896: {Liquid catalyst carrier} - F01N 2530/06: Aluminium or alloys thereof - F01N 2530/18: Plastics material, e.g. polyester resin - F01N 2610/02: the substance being ammonia or urea - F01N 2610/1406: Storage means for substances, e.g. tanks or reservoirs - F01N 2610/1486: Means to prevent the substance from freezing - Y02A 50/20: Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters - 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) - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A device for providing a liquid additive, including at least one metallic insert, which is coated, at least in sections, with a plastic coating made of polyethylene (PE). At least one plastic structure made of a high-density polyethylene (HD-PE) or polypropylene (PP) is sprayed onto the plastic coating. ## Claims ### Claim 1 A device for supplying a liquid additive, comprising: a delivery unit for supplying liquid additive; a plastics coating; at least one metallic insert at least partially coated with the plastics coating; a housing, the at least one metallic insert forming at least a part of the housing; at least one plastics structure injection moulded onto the plastics coating; and a tank wall, the at least one plastics structure forming at least a portion of the tank wall; wherein the delivery unit for liquid additive is located in the housing. ### Claim 2 (depends on 1) The device for supplying a liquid additive of claim 1, further comprising a heating element, wherein the at least one metallic insert is connected to the heating element in heat-conducting fashion. ### Claim 3 (depends on 1) The device for supplying a liquid additive of claim 1, the plastics coating further comprising a coating thickness between 50 μm and 500 μm. ### Claim 4 (depends on 1) The device for supplying a liquid additive of claim 1, wherein the at least one metallic insert is composed of aluminium. ### Claim 5 (depends on 1) The device for supplying a liquid additive according to claim 1, wherein the plastics coating is composed of polyethylene (PE). ### Claim 6 (depends on 1) The device for supplying a liquid additive according to claim 1, the at least one plastics structure being made of a material selected from the group consisting of high-density polyethylene (HD-PE) and polypropylene (PP). ### Claim 7 (depends on 1) The device for supplying a liquid additive according to claim 1, wherein the device for supplying liquid additive is used with an exhaust-gas treatment device having an SCR catalytic converter, and the SCR catalytic converter is used for the purification of exhaust gases of an internal combustion engine. ### Claim 8 A device for supplying a liquid additive, comprising: at least one plastics structure; a housing, the at least one plastics structure forming at least a portion of the housing; a plastics coating; a bell cover, a portion of the bell cover coated with the plastics coating; a delivery unit for supplying liquid additive, the delivery unit for liquid additive being located in the housing; a tank wall, the at least one plastics structure forming at least a portion of the tank wall; wherein the bell cover at least partially surrounds the housing, and the portion of the bell cover coated with the plastics coating extends through a portion of the housing. ### Claim 9 (depends on 8) The device for supplying a liquid additive of claim 8, the bell cover further comprising at least one metallic insert. ### Claim 10 (depends on 9) The device for supplying a liquid additive of claim 9, further comprising a heating element, wherein the at least one metallic insert is connected to the heating element in heat-conducting fashion. ### Claim 11 (depends on 9) The device for supplying a liquid additive of claim 9, wherein the at least one metallic insert is composed of aluminium. ### Claim 12 (depends on 8) The device for supplying a liquid additive of claim 8, the plastics coating further comprising a coating thickness between 50 μm and 500 μm. ### Claim 13 (depends on 8) The device for supplying a liquid additive according to claim 8, wherein the plastics coating is composed of polyethylene (PE). ### Claim 14 (depends on 8) The device for supplying a liquid additive according to claim 8, the at least one plastics structure being made of a material selected from the group consisting of high-density polyethylene (HD-PE) and polypropylene (PP). ### Claim 15 (depends on 8) The device for supplying a liquid additive according to claim 8, wherein the device for supplying liquid additive is used with an exhaust-gas treatment device having an SCR catalytic converter, and the SCR catalytic converter is used for the purification of exhaust gases of an internal combustion engine. ### Claim 16 A device for supplying a liquid additive, comprising: a plastics coating; at least one inlay at least partially coated with the plastics coating; at least one plastics structure; a housing, the at least one plastics structure forming at least a portion of the housing; a delivery unit for supplying liquid additive, the delivery unit for liquid additive being located in the housing; a tank wall, the at least one plastics structure forming at least a portion of the tank wall; wherein the housing is injection moulded around the plastics coating. ### Claim 17 (depends on 16) The device for supplying a liquid additive of claim 16, the at least one inlay further comprising at least one metallic insert. ### Claim 18 (depends on 17) The device for supplying a liquid additive of claim 17, wherein the at least one metallic insert is composed of aluminium. ### Claim 19 (depends on 16) The device for supplying a liquid additive of claim 16, the plastics coating further comprising a coating thickness between 50 μm and 500 μm. ### Claim 20 (depends on 16) The device for supplying a liquid additive according to claim 16, wherein the plastics coating is composed of polyethylene (PE). ### Claim 21 (depends on 16) The device for supplying a liquid additive according to claim 16, the at least one plastics structure being made of a material selected from the group consisting of high-density polyethylene (HD-PE) and polypropylene (PP). ### Claim 22 (depends on 16) The device for supplying a liquid additive according to claim 16, wherein the device for supplying liquid additive is used with an exhaust-gas treatment device having an SCR catalytic converter, and the SCR catalytic converter is used for the purification of exhaust gases of an internal combustion engine.