# US 2017/0254247 A1 · Heating device and tank with heating device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0254247 A1 - Document ID: US20170254247A1 - Status: Published application - Kind: A1 - Application number: 15/445,069 - Filed: 2017-02-28 - Published: 2017-09-07 - Earliest claimed: 2016-03-03 - Assignees: Röchling Automotive SE & Co. KG - Applicants: Röchling Automotive SE & Co. KG - Inventors: Fabrizio CHINI; Luca MARINI; Ivan DE METRI; Francesca BRUNORI; Stefano DALPEZ - Web page: https://patentgrep.com/patent/US20170254247A1 ## CPC - F01N 3/2896: {Liquid catalyst carrier} - F01N 3/2066: {Selective catalytic reduction [SCR]} - H05B 1/0236: {for vehicles} - H05B 3/16: the conductor being mounted on an insulating base - H05B 3/18: the conductor being embedded in an insulating material - H05B 3/26: heating conductor mounted on insulating base {(for transparent areas H05B3/84, H05B3/86)} - H05B 3/28: heating conductor embedded in insulating material - H05B 3/78: Heating arrangements specially adapted for immersion heating - F01N 2610/02: the substance being ammonia or urea - F01N 2610/10: the substance being heated, e.g. by heating tank or supply line of the added substance - F01N 2610/1406: Storage means for substances, e.g. tanks or reservoirs - 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) - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract Heating device (10), in particular for heating an operating fluid tank of a motor vehicle, preferably a tank for storage of aqueous urea solution, the heating device (10) comprising an electrical resistance heating trace (14) with a heating side (14b), on which, in intended operation, heat is emitted to a fluid to be heated, and the heating side (14b) opposing a carrier side (14a), on which the resistance heating trace (14) faces a mounting supporting it, wherein the resistance heating trace (14) is disposed between a flexible film (16) on its heating side (14b) and a substrate (12), rigid in comparison with the flexible film (16), as the supporting mounting on the carrier side (14a), which is characterized in that the resistance heating trace (14a) is connected to the rigid substrate (12) on the carrier side (14a) without intermediate arrangement of a further film. ## Claims ### Claim 1 Heating device for heating an operating fluid of a motor vehicle, the heating device comprising: an electrical resistance heating trace with a heating side on which in intended operation heat is emitted to a fluid to be heated, and with a carrier side opposing the heating side on which the resistance heating trace faces a mounting supporting it, wherein the resistance heating trace is disposed between a flexible film on its heating side and a substrate rigid in comparison with the flexible film as the supporting mounting on its carrier side, wherein the resistance heating trace is connected to the rigid substrate on the carrier side without intermediate arrangement of a further film. ### Claim 2 (depends on 1) The heating device according to claim 1, wherein an intermediate layer made from hardenable material is provided on the heating side of the resistance heating trace between the film and the resistance heating trace. ### Claim 3 (depends on 1) The heating device according to claim 1, wherein the rigid substrate extends as a flat component over a continuous extension surface. ### Claim 4 (depends on 1) The heating device according to claim 1, wherein the rigid substrate as a component extends only in regions in which a resistance heating trace is provided. ### Claim 5 (depends on 1) The heating device according to claim 1, wherein the resistance heating trace is received in a depression of the substrate, wherein starting from an outer surface of the substrate the depression extends into the substrate in a depth direction thereof and follows the course of the resistance heating trace orthogonally to the depth direction. ### Claim 6 (depends on 5) The heating device according to claim 5, wherein at least one projection from a base delimiting the depression in the depth direction, extends counter to the depth direction to the outer surface wherein the resistance heating trace rests on the at least one projection. ### Claim 7 (depends on 6) The heating device according to claim 6, wherein the at least one projection is hollow so that a gas space is provided on the carrier side of the resistance heating trace in the region of support by the at least one projection. ### Claim 8 (depends on 5) The heating device according to claim 5, wherein the depression is filled at least sectionally with a hardenable material. ### Claim 9 (depends on 5) The heating device according to claim 5, wherein the resistance heating trace at least in a section is provided distant in the depth direction from the outer surface of the substrate. ### Claim 10 (depends on 1) The heating device according to claim 1, wherein the substrate comprises a thermoplastic material. ### Claim 11 (depends on 1) The heating device according to claim 1, wherein the resistance heating trace includes at least one opening which is penetrated by material in order to connect the resistance heating trace to the substrate. ### Claim 12 (depends on 1) The heating device according to claim 1, wherein the resistance heating trace includes a flat structure extending in a main extension surface, whose dimension in the thickness direction is substantially smaller than its dimension in an extension direction orthogonal to the thickness direction and in a width direction orthogonal both to the thickness direction and to the extension direction. ### Claim 13 (depends on 1) A tank including a heating device according to claim 1. ### Claim 14 (depends on 13) The tank according to claim 13, wherein the substrate is received in the interior of the tank at a distance from the tank wall. ### Claim 15 (depends on 13) The tank according to claim 13, wherein the tank wall is formed by the substrate. ### Claim 16 (depends on 1) The heating device according to claim 1, wherein an intermediate layer made from thermally hardenable material is provided on the heating side of the resistance heating trace between the film and the resistance heating trace. ### Claim 17 (depends on 1) The heating device according to claim 1, wherein an intermediate layer made from hotmelt is provided on the heating side of the resistance heating trace between the film and the resistance heating trace. ### Claim 18 (depends on 1) The heating device according to claim 1, wherein the rigid substrate as a component follows the resistance heating trace in its course and projects over it on both sides orthogonal to the local course direction. ### Claim 19 (depends on 5) The heating device according to claim 5, wherein the depression is filled at least sectionally with a thermally hardenable material. ### Claim 20 (depends on 5) The heating device according to claim 5, wherein the depression is filled at least sectionally with hardenable material different from the substrate material. ### Claim 21 (depends on 5) The heating device according to claim 5, wherein the depression is filled at least sectionally with hotmelt. ### Claim 22 (depends on 1) The heating device according to claim 1, wherein the substrate comprises a polyolefin. ### Claim 23 (depends on 1) The heating device according to claim 1, wherein the substrate comprises at least one of polypropylene and a duroplast. ### Claim 24 (depends on 1) The heating device according to claim 1, wherein the resistance heating trace includes at least one opening which is penetrated by material of the substrate in order to connect the resistance heating trace to the substrate. ### Claim 25 (depends on 12) The heating device according to claim 12, wherein the main extension surface is preferably a three-dimensional surface. ### Claim 26 (depends on 13) The tank according to claim 13, wherein the tank is an SCR tank for storage of aqueous urea solution. ### Claim 27 (depends on 13) The tank according to claim 13, wherein the substrate is received in the interior of the tank at a distance from the tank wall, forming a gap space between the tank wall and the substrate. ### Claim 28 (depends on 26) The tank according to claim 26, wherein the gap space between the tank wall and the substrate has a gap dimension of 2 to 15 mm.