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US 11,230,954 B2Granted
Deposit reduction using interior surface finishing
AssigneeCummins Emission Solutions Inc.
InventorMatthew K. Volmerding
Life of this patent
Estimating the term…
Abstract
An aftertreatment component includes an aftertreatment housing. The aftertreatment housing has a first surface positioned so as to be directly impinged by diesel exhaust fluid injected into the aftertreatment housing. The first surface is a polished surface.
Claims20
An aftertreatment component comprising:
- an aftertreatment housing comprising a first surface positioned so as to be directly impinged by diesel exhaust fluid injected into the aftertreatment housing, the first surface being a polished surface, wherein the first surface has a surface roughness of no greater than 0.51 micrometers.
A method for processing an aftertreatment component including a splash plate and a housing, the method comprising:
- polishing a first surface of the splash plate using an extrude honing process;
- and
- positioning the splash plate in the housing such that the first surface of the splash plate is to be directly impinged by diesel exhaust fluid injected into the housing;
- wherein, in response to the polishing of the first surface, the first surface has a surface roughness of no greater than 0.51 micrometers.
1 more element
An aftertreatment housing, comprising:
- a first surface positioned so as to be directly impinged by diesel exhaust fluid injected into the aftertreatment housing, the first surface being a polished surface, and
- a second surface positioned so as to be indirectly impinged by the diesel exhaust fluid injected into the aftertreatment housing, the second surface having a surface roughness of at least 1.78 micrometers.
Dependencies are inferred from the claim text.