US 11,814,999 B2
Mixing apparatus
Dennis Sailer, Altensteig (DE)
Assigned to Friedrich Boysen GmbH & Co. KG, Altensteig (DE)
Filed by Friedrich Boysen GmbH & Co. KG, Altensteig (DE)
Filed on Jul. 29, 2022, as Appl. No. 17/876,851.
Claims priority of application No. 102021120423.2 (DE), filed on Aug. 5, 2021.
Prior Publication US 2023/0037405 A1, Feb. 9, 2023
Int. Cl. F01N 13/08 (2010.01); F01N 3/20 (2006.01); F01N 3/28 (2006.01)
CPC F01N 3/206 (2013.01) [F01N 3/2892 (2013.01); F01N 2240/16 (2013.01); F01N 2610/02 (2013.01); F01N 2610/102 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A mixing apparatus for introducing and distributing a liquid additive into a gas flow, said mixing apparatus comprising
a gas-guiding section for guiding the gas flow;
a metering-in device for introducing the liquid additive into a metering-in region of the gas-guiding section; and
a heating device for actively heating at least one heating section of the gas-guiding section,
wherein the heating section is arranged in the metering-in region and/or downstream of the metering-in region and the gas-guiding section has, in the heating section, at least one elevated portion projecting radially into the gas flow for influencing the flow of the gas flow,
wherein the elevated portion extends in a peripheral direction of the gas-guiding section,
wherein at least two elevated portions are provided that are arranged behind one another, viewed in a direction of flow of the gas flow,
wherein the elevated portion is produced by a reshaping process of the gas-guiding section, and/or wherein the elevated portion is formed by a local thickening of a wall of the gas-guiding section.