Patent ID: 11911780
Assignee: nan
Field: Surface technology, coating (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A washcoat showerhead for depositing a liquid washcoat onto a face of a substrate located below the washcoat showerhead, the washcoat showerhead comprising:
a housing having an inlet for receiving the liquid washcoat;
a showerhead plate; and
a baffle;
the housing and showerhead plate defining a showerhead cavity and the baffle being located within the showerhead cavity;
the showerhead plate comprising a plurality of nozzle apertures for discharging the liquid washcoat towards the face of the substrate;
the baffle comprising an impermeable central body and a plurality of arms extending from the impermeable central body, the plurality of arms defining a plurality of flow apertures circumferentially arranged around the impermeable central body;
the baffle being mounted in the showerhead cavity such that the impermeable central body is spaced from the showerhead plate;
the impermeable central body being aligned below the inlet of the housing such that liquid washcoat entering the showerhead cavity through the inlet is diverted to flow around the impermeable central body and through the plurality of flow apertures before being discharged through the nozzle apertures of the showerhead plate;
wherein an upper face of the impermeable central body facing the inlet comprises a protrusion.