# US 10,766,084 B2 · Joining device and method for producing an exhaust gas system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,766,084 B2 - Document ID: US10766084B2 - Status: Granted - Kind: B2 - Application number: 15/914,117 - Filed: 2018-03-07 - Published: 2018-09-20 - Granted: 2020-09-08 - Earliest claimed: 2017-03-17 - Assignees: Faurecia Emissions Control Technologies, Germany GmbH - Applicants: Faurecia Emissions Control Technologies, Germany GmbH - Inventors: Alfred Blueml - Web page: https://patentgrep.com/patent/US10766084B2 ## CPC - B23K 1/002: Soldering by means of induction heating - B23K 1/0008: {specially adapted for particular articles or work} - B23K 1/19: taking account of the properties of the materials to be soldered - B23K 3/0475: {using induction effects, e.g. Kelvin or skin effects} - B23K 3/08: Auxiliary devices therefor - B23K 3/087: {Soldering or brazing jigs, fixtures or clamping means} - B23K 37/02: Carriages for supporting the welding or cutting element - F01N 13/18: Construction facilitating manufacture, assembly, or disassembly - F01N 13/1838: {characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles} - B23K 2101/006: {Vehicles} - B23K 2101/06: Tubes - F01N 2450/22: by welding or brazing - B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM - 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) ## Abstract A joining device for producing an exhaust gas system for an internal combustion engine comprises a device base, a frame, and at least two joining units that can be operated simultaneously are fastened to the frame. The frame extends essentially vertically starting from the device base. In a method for producing the exhaust gas system, at least one joining unit of a joining device is oriented to a geometry of the exhaust gas system that is to be produced, at least three components or assemblies of the exhaust gas system are positioned in the joining device, and the components or assemblies are simultaneously connected. ## Claims ### Claim 1 A joining device for producing an exhaust gas system for an internal combustion engine of a motor vehicle comprising: a device base that is configured to be positioned on a hall floor; a frame associated with the base; and at least two joining units that can be operated simultaneously fastened to the frame, wherein the frame extends essentially vertically starting from the device base, and wherein the at least two joining units are configured to connect exhuast components of the exhaust gas system to one another. ### Claim 2 (depends on 1) The joining device of claim 1 wherein the joining units comprise induction soldering units and each comprise an inductor. ### Claim 3 (depends on 1) The joining device of claim 1 wherein each of the joining units is positionable along a translational axis or multiple translational axes relative to the frame. ### Claim 4 (depends on 1) The joining device of claim 1 wherein each of the joining units is positionable rotationally about a rotational axis or multiple rotational axes relative to the frame. ### Claim 5 (depends on 1) The joining device of claim 1 wherein the joining units are arranged essentially one above the other in a vertical direction. ### Claim 6 (depends on 1) The joining device of claim 1 including one or multiple clamping units. ### Claim 7 (depends on 6) The joining device of claim 6 wherein each of the clamping units is adjustable in three rotational and three translational degrees of freedom. ### Claim 8 (depends on 6) The joining device of claim 6 wherein the clamping units are electrically actuated. ### Claim 9 (depends on 1) The joining device of claim 1 including a soldering current generator having multiple soldering current outputs, wherein each soldering current output is coupled to at least one of the two joining units. ### Claim 10 (depends on 1) The joining device of claim 1 wherein a number of joining units corresponds to a number of joining interfaces of the exhaust gas system. ### Claim 11 (depends on 1) The joining device of claim 1 wherein the at least two joining units comprise three to fifteen joining units. ### Claim 12 (depends on 3) The joining device of claim 3, wherein each of the joining units is connected to the frame via three linear drive units that operate perpendicular to one another and each of the linear drive units comprises an electrical drive unit. ### Claim 13 (depends on 4) The joining device of claim 4, wherein each of the joining units is connected via three electrically rotational adjustment drives having rotational axes that operate perpendicular to one another to the frame. ### Claim 14 (depends on 6) The joining device of claim 6, wherein a number of clamping units corresponds to at least a number of components or assemblies of the exhaust gas system that are to be joined. ### Claim 15 (depends on 8) The joining device of claim 8, wherein the clamping units are electrically activated and electrically deactivated. ### Claim 16 (depends on 9) The joining device of claim 9, wherein a number of soldering current outputs corresponds to a number of joining units. ### Claim 17 (depends on 11) The joining device of claim 11, wherein the at least two joining units comprise five to twelve joining units. ### Claim 18 (depends on 1) The joining device of claim 1, wherein the joining device connects exhaust components of the exhaust gas system to one another. ### Claim 19 (depends on 18) The joining device of claim 18, wherein the exhaust components are configured to receive exhaust gases from an internal combustion engine. ### Claim 20 (depends on 6) The joining device of claim 6, wherein a number of clamping units corresponds to at least a number of exhaust components or assemblies of the exhaust gas system that are to be joined, and wherein the exhaust components or assemblies are held in the joining device via the clamping units.