Patent ID: 11913369
Assignee: FAURECIA EMISSION CONTROL TECHNOLOGIES (SHANGHAI) CO., LTD
Field: Environmental technology (Chemistry)
Classification: CPC F  Y | IPC F

Claim 7:
8. An exhaust system, comprising:
a mixer, comprising a pipe, comprising a side wall, wherein the side wall comprises an opening; a doser mounting base, provided on the opening of the side wall of the pipe, connecting the pipe through the opening, defining a first space, and comprising an injection inlet; and an attachment, comprising a chamber portion and a deflector portion, wherein the chamber portion comprises a chamber portion inlet corresponding to the injection inlet and a chamber portion outlet corresponding to the opening of the side wall of the pipe; and the deflector portion extends from the side wall of the chamber portion and makes the pipe, the side wall of the chamber portion and the chamber portion inlet fluidly connected, and the attachment constitutes a swirling structure that forms a swirling movement of exhaust at the chamber portion inlet; and
a doser, wherein the pipe is used for providing flow of exhaust, the doser is used for injecting a reductant spray to the mixer, and the doser is set on the doser mounting base;
wherein the chamber portion comprises a cylindrical member located on the first space, two ends of the cylindrical member are respectively the chamber portion inlet and the chamber portion outlet, a side wall of the cylindrical member is a closed structure, the deflector portion comprises a deflecting member extending from the side wall of the cylindrical member, and the deflecting member comprises a first catching plate, which extends from the side wall of the cylindrical member into the pipe through the opening of the side wall of the pipe, and a second catching plate, which intersects the first catching plate.