Patent ID: 11965449
Assignee: CUMMINS EMISSION SOLUTIONS INC.
Field: Chemical engineering (Chemistry)
Classification: CPC F  B  Y | IPC F

Claim 14:
15. A mixer for a vehicle exhaust gas system, the mixer comprising:
a mixer housing defining an internal cavity having a center axis;
a venturi section positioned within the internal cavity and including a plurality of vanes, wherein the venturi section comprises a first stamping having a first base surface that faces an upstream direction and a second stamping having a second base surface that faces a downstream direction, wherein the first stamping and the second stamping are attached to each other to provide a mixing chamber therebetween, and including a first doser chamber portion protruding radially outward of the first stamping and a second doser chamber portion protruding radially outward of the second stamping to cooperate with the first doser chamber portion to provide a doser chamber having an inlet and an outlet that is open to the mixing chamber;
a doser mount opening formed within the mixer housing that is aligned with the inlet; and
an upstream support flange and a downstream support flange that are used to mount the venturi section within the mixer housing, wherein the upstream support flange has an inner edge connected to the venturi section and an outer edge connected to the mixer housing, the outer edge being upstream of the inner edge about an outer periphery of the upstream support flange, and wherein the downstream support flange has an inner edge connected to the venturi section and an outer edge connected to the mixer housing, the outer edge being downstream of the inner edge about an outer periphery of the downstream support flange.