公开(公告)号：US11898484B2

公开(公告)日：2024-02-13

申请号：US18164237

申请日：2023-02-03

申请人： Purem GmbH

发明人： Philipp Weinmann ,  Vincent Eder ,  Mathias Rothfuss ,  Tobias Wolf ,  Michael Dentler ,  Alexander Kauderer

IPC分类号： F01N3/28 ,  F01N3/20

CPC分类号： F01N3/2892 ,  F01N3/2066 ,  F01N2450/22 ,  F01N2610/1453

摘要： A mixing subassembly for an exhaust gas system of an internal combustion engine for mixing exhaust gas, which is discharged by an internal combustion engine, with reactant includes a mixing path which extends in the direction of a mixing path longitudinal axis and which has an upstream mixing path inflow region for receiving exhaust gas and/or reactant in the mixing path. The mixing path includes a core flow channel, through which a first exhaust gas partial flow flows, and a bypass flow channel, through which a second exhaust gas partial flow flows. At least one flow blocking element reduces a flow cross section of the bypass flow channel and is arranged in the bypass flow channel.

公开(公告)号：US11441470B2

公开(公告)日：2022-09-13

申请号：US17036927

申请日：2020-09-29

申请人： Purem GmbH

发明人： Peter Kast ,  Michael Dentler ,  Vincent Eder ,  Mathias Rothfuss

IPC分类号： F01N1/00 ,  F01N3/28 ,  F01N3/20 ,  B01F25/431

摘要： An internal combustion engine exhaust system mixer device includes a bottom element (12) includes a downstream rear side (22) and a front side (44). The bottom element has a reactant introduction opening (31), open to a reactant receiving volume (46), and expands therefrom radially from the reactant introduction opening toward the front side. Exhaust gas passage ducts (58), arranged following one another in the circumferential direction about the opening axis (A), open to the reactant receiving volume. A swirl generation element (20) is connected to the bottom element and encloses the opening axis. A mixing volume (64) adjoins the reactant receiving volume in the direction of the opening axis and is formed in the swirl generation element. A plurality of exhaust gas passage openings (66), following one another in the circumferential direction, about the opening axis are provided in the swirl generation element.

公开(公告)号：US20230250746A1

公开(公告)日：2023-08-10

申请号：US18164237

申请日：2023-02-03

申请人： Purem GmbH

发明人： Philipp Weinmann ,  Vincent Eder ,  Mathias Rothfuss ,  Tobias Wolf ,  Michael Dentler ,  Alexander Kauderer

IPC分类号： F01N3/28 ,  F01N3/20

CPC分类号： F01N3/2892 ,  F01N3/2066 ,  F01N2450/22 ,  F01N2610/1453

摘要： A mixing subassembly for an exhaust gas system of an internal combustion engine for mixing exhaust gas, which is discharged by an internal combustion engine, with reactant includes a mixing path which extends in the direction of a mixing path longitudinal axis and which has an upstream mixing path inflow region for receiving exhaust gas and/or reactant in the mixing path. The mixing path includes a core flow channel, through which a first exhaust gas partial flow flows, and a bypass flow channel, through which a second exhaust gas partial flow flows. At least one flow blocking element reduces a flow cross section of the bypass flow channel and is arranged in the bypass flow channel.