Mixer, Mixer Assembly and Mixing Method
AssigneeFaurecia Emission Control Technologies (Shanghai) Co., Ltd.
InventorsLudovic GEANT, Jian GAO, Thibault FOUQUET
Life of this patent
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Abstract
A mixer, a mixer assembly and a mixing method in which the mixer comprises a shell defining a first space, the first space receives engine exhaust, and the shell has a mounting area located on a wall of the shell; a doser mounting base arranged in the mounting area for mounting the doser, wherein the doser mounting base comprises a spray inlet as an inlet end for the spray that is sprayed by the doser entering the first space, and the doser mounting base further comprises a first swirl structure that surrounds the spray inlet to make the exhaust form a swirl around the spray inlet.
Claims17
A mixer for an engine exhaust system, comprising:
- a shell defining a first space, wherein the first space receives engine exhaust and the shell has a mounting area located on a wall of the shell;
- a doser mounting base, arranged in the mounting area for mounting the doser;
- wherein the doser mounting base comprises a spray inlet, as an inlet end for the spray that is sprayed by the doser entering the first space, and the doser mounting base further comprises a first swirl structure that surrounds the spray inlet to make the exhaust form a swirl around the spray inlet.
A mixer assembly, comprising
- a doser;
- and
- a mixer, wherein the mixer is for an engine exhaust system, comprising:
- a shell defining a first space, wherein the first space receives engine exhaust and the shell has a mounting area located on a wall of the shell;
- a doser mounting base, arranged in the mounting area for mounting the doser;
- wherein the doser mounting base comprises a spray inlet, as an inlet end for the spray that is sprayed by the doser entering the first space, and the doser mounting base further comprises a first swirl structure that surrounds the spray inlet to make the exhaust form a swirl around the spray inlet;
- wherein the doser is mounted on a doser mounting base, a spray end of the doser is located at a spray inlet, so that spray of a reductant solution sprayed by the doser is released into the mixer from the spray inlet.
A mixing method for mixing exhaust with spray of reductant solution, comprising:
- making spray of a reductant solution enter a mixing chamber from a spray inlet of the mixing chamber;
- making at least a part of exhaust forms swirling exhaust at the spray inlet, and mixing the swirling exhaust with the spray at the spray inlet.
Dependencies are inferred from the claim text.