Flow reversing mixer assembly
AssigneeFaurecia Emissions Control Technologies
InventorsChris Chapman, Philip M. Dimpelfeld, Syed Saleem Quadri, Aejaz Ahmed
Life of this patent
Estimating the term…
Abstract
A mixer assembly for a vehicle exhaust system includes a housing having an inlet portion and an outlet portion that are connected to each other with a channel portion. An inlet baffle is positioned at the inlet portion and an outlet baffle is positioned at the outlet portion. The inlet and outlet baffles are non-concentric. An injector housing is attached to the housing downstream of the inlet baffle and a spray guide is mounted within the injector housing. The spray guide has a spray inlet and a spray outlet that directs spray into the channel portion.
Claims28
A mixer assembly for a vehicle exhaust system comprising:
- a housing having an inlet portion and an outlet portion that are connected to each other with a channel portion;
- an inlet baffle positioned at the inlet portion;
- an outlet baffle positioned at the outlet portion, wherein the inlet and outlet baffles are non-concentric;
- an injector housing attached to the housing downstream of the inlet baffle;
- a spray guide mounted within the injector housing, wherein the spray guide has a spray inlet and a spray outlet that directs spray into the channel portion;
- and
- at least one of an outer jacket or inner wall to define a secondary flow path within the mixer assembly.
A vehicle exhaust system assembly comprising:
- a first exhaust component assembly extending along a first axis;
- a second exhaust component assembly extending along a second axis that is spaced apart from and parallel to the first axis;
- a mixer that connects a component outlet from the first exhaust component assembly to a component inlet of the second exhaust component assembly, wherein the mixer includes a mixer housing having an inlet portion and an outlet portion that are connected to each other with a channel portion, an inlet baffle positioned at the inlet portion, and an outlet baffle positioned at the outlet portion, and wherein the inlet baffle is concentric with the first axis and the outlet baffle is concentric with the second axis;
- wherein the mixer includes
- an outer jacket that is spaced outwardly from an outer surface of the mixer housing by a gap to provide a secondary flow path, or
- an inner wall that is spaced inwardly from an inner surface of the mixer housing by a gap to provide a secondary flow path;
- and
- an injector assembly including an injector housing attached to the mixer housing downstream of the inlet baffle and a cone mounted within the injector housing, wherein the cone has a cone inlet that receives spray from an injector and has a cone outlet that directs spray into the channel portion.
Dependencies are inferred from the claim text.