# US 10,500,550 B2 · Static mixer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,500,550 B2 - Document ID: US10500550B2 - Status: Granted - Kind: B2 - Application number: 13/524,372 - Filed: 2012-06-15 - Published: 2012-12-20 - Granted: 2019-12-10 - Earliest claimed: 2011-06-16 - Assignees: Robert Bosch GmbH - Applicants: Andreas Geibel - Inventors: Andreas Geibel - Web page: https://patentgrep.com/patent/US10500550B2 ## CPC - B01F 23/2132: {using nozzles} - B01F 25/3131: {with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements} - B01F 25/4315: {the baffles being deformed flat pieces of material (B01F25/4314 takes precedence)} - F01N 3/2073: {Means for generating a reducing substance from the exhaust gases} - F01N 3/2892: {Exhaust flow directors or the like, e.g. upstream of catalytic device} - B01F 25/431974: {Support members, e.g. tubular collars, with projecting baffles fitted inside the mixing tube or adjacent to the inner wall} - F01N 2240/20: a flow director or deflector - Y02A 50/20: Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters - B01F: MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING (mixing paints B44D3/06) - 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 ## Abstract The present invention relates to a static mixer (9) for installation in a fluid line, in particular exhaust line (5) of a combustion engine (1), with an annular body (10) comprising at least one blade row (11) with a plurality of guide blades (12) standing away from the annular body (10) to the inside. A cost-effective producibility is obtained when the annular body (10) in the circumferential direction (13) consists of at least two part bodies (14), when part bodies (14) adjacent in the circumferential direction (13) are fastened to one another and when each part body (14) comprises a plurality of guide blades (12). ## Claims ### Claim 1 A static mixer for installation in an exhaust line of a combustion engine, with an annular body, comprising at least one blade row with a plurality of guide blades standing away from the annular body to an inside, wherein, the annular body defines an outer periphery of the static mixer and in a circumferential direction consists of at least two part bodies, part bodies adjacent in the circumferential direction are fastened to one another, each part body comprises a plurality of guide blades; wherein, the part bodies adjacent in the circumferential direction inter-engage into one another in a protrusion-receptacle configuration in a region of circumferential ends of the part bodies and are pressed together in the region of the circumferential ends with plastic deformation; and wherein, the part bodies adjacent in the circumferential direction are arranged in the circumferential direction abutting with their circumferential ends; wherein the region of circumferential ends is on the outer periphery; and wherein the plurality of guide blades are formed at an axial extent of the annular body and radially converge to a central region of the annular body. ### Claim 2 (depends on 1) The mixer according to claim 1, wherein, each part body on a one circumferential end comprises at least one coupling protrusion standing away in the circumferential direction and on an other circumferential end at least one coupling receptacle complementary thereto, wherein four connecting part bodies are fastened to one another and adjacent in the circumferential direction such that the at least one coupling protrusion of one part body is in engagement with the at least one coupling receptacle of the other part body. ### Claim 3 (depends on 2) The mixer according to claim 2, wherein, coupling protrusion and coupling receptacle are formed for forming a positive connection, in the form of an undercut, in the circumferential direction. ### Claim 4 (depends on 2) The mixer according to claim 2, wherein, the abutting circumferential ends are radially pressed together in a region of the inter-engaging coupling protrusion and coupling receptacle. ### Claim 5 (depends on 1) The mixer according to claim 1, wherein, the part bodies are identical parts. ### Claim 6 (depends on 1) The mixer according to claim 1, wherein, the at least one blade row is arranged on the annular body axially at a first face end. ### Claim 7 (depends on 6) The mixer according to claim 6, wherein, the annular body comprises a second face end; and wherein the annular body comprises a blade row each on both first and second face ends. ### Claim 8 (depends on 7) The mixer according to claim 7, wherein, the annular body comprises a radial through-opening between both first and second face ends. ### Claim 9 (depends on 1) The mixer according to claim 1, wherein, the guide blades of the at least one blade row are arranged in a contactless manner relative to one another. ### Claim 10 (depends on 1) The mixer according to claim 1, wherein, at least in one such blade row a plurality of guide blades terminate on a circular core zone radially inside, while at least one guide blade protrudes as far as into the core zone. ### Claim 11 (depends on 1) The mixer according to claim 1, wherein, each part body with its guide blades is integrally produced from one piece. ### Claim 12 (depends on 1) The mixer according to claim 1, wherein, each part body with its guide blades is a shaped sheet metal part produced from a single sheet metal body through forming. ### Claim 13 (depends on 1) An exhaust system for a combustion engine of a motor vehicle with an exhaust line, in which at least one static mixer according to claim 1 is arranged. ### Claim 14 A static mixer for installation in an exhaust line of a combustion engine the static mixer comprising: an annular body having an outer most annular wall defining an outer periphery of the static mixer and defined by at least two part bodies fastened to one another, each part body comprising at least one blade row with multiple guide blades standing away from the annular wall to an inside; wherein the part bodies each have circumferential ends; wherein adjacent part bodies engage one another in a protrusion-receptacle configuration and are pressed fit at their circumferential ends along the annular wall with plastic deformation; wherein the adjacent part bodies engage one another on the outer periphery; and wherein the multiple guide blades are formed at an axial extent of the annular body and radially converge to a central region of the annular body.