Injector spray protector
AssigneeFaurecia Emissions Control Technologies, USA, LLC
InventorsAlfred N. Tucker, Tomasz Kozakeiwicz, Syed Saleem Quadri, Jeffery Prairie
Life of this patent
Estimating the term…
Abstract
A vehicle exhaust system includes an injector assembly having an injector mount configured to mount an injector to an exhaust component. The injector mount includes a spray opening surrounding a spray axis. An injector housing extends from an inlet end that receives exhaust gases to an outlet end. The inlet end defines a planar area that is transverse to the spray axis. A spray protector extends axially from the injector mount to break the planar area. A vehicle exhaust component assembly comprising a mixer with the injector assembly and a method for injecting a fluid into an exhaust component using the injector assembly are also disclosed.
Claims27
An injector assembly for a vehicle exhaust component comprising:
- an injector mount configured to mount an injector to the vehicle exhaust component, wherein the injector mount includes a spray opening surrounding a spray axis;
- an injector housing extending from an inlet end that receives exhaust gases to an outlet end, and wherein the inlet end defines a planar area that is transverse to the spray axis;
- and
- a spray protector extending axially from the injector mount to break the planar area.
A vehicle exhaust component assembly comprising:
- a mixer shell defining a mixer center axis, the mixer shell including a mixer opening formed in an outer surface of the mixer shell;
- an upstream mixer baffle positioned within the mixer shell;
- a downstream mixer baffle positioned within the mixer shell and spaced axially from the upstream mixer baffle in a direction along the mixer center axis;
- an injector mount held fixed relative to the mixer shell, and wherein the injector mount includes a spray opening surrounding a spray axis and aligned within the mixer opening;
- an injector housing extending from an inlet end that receives exhaust gases to an outlet end, and wherein the inlet end defines a planar area that intersects the spray axis;
- and
- a spray protector extending axially from the injector mount to a distal end that extends axially beyond the planar area in a direction along the spray axis.
A method for injecting a fluid into an exhaust component comprising the steps of:
- providing an injector mount configured to mount an injector to the exhaust component, the injector mount including a spray opening surrounding a spray axis;
- positioning an injector housing adjacent to the injector mount, the injector housing extending from an inlet end that receives exhaust gases to an outlet end, and wherein the inlet end defines a planar area that intersects the spray axis;
- and
- providing a spray protector that extends axially from the injector mount to a distal end that extends axially beyond the planar area in a direction along the spray axis such that spray exiting the distal end of the spray protector mixes with exhaust gases entering the inlet end of the injector housing.
Dependencies are inferred from the claim text.