Apparatus and method for coating substrates with washcoats

A washcoat showerhead (5) for depositing a washcoat onto a face of a substrate comprises a housing (21) having an inlet for receiving the washcoat, a showerhead plate (23) and a baffle (50). The housing and showerhead plate define a showerhead cavity with the baffle located within the showerhead cav...

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Bibliographische Detailangaben
Hauptverfasser:	Neil Burgess, Craig Thomson, Jamie Savage
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS NOZZLES PERFORMING OPERATIONS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	A washcoat showerhead (5) for depositing a washcoat onto a face of a substrate comprises a housing (21) having an inlet for receiving the washcoat, a showerhead plate (23) and a baffle (50). The housing and showerhead plate define a showerhead cavity with the baffle located within the showerhead cavity (24). The showerhead plate has a plurality of nozzle apertures (25) for discharging the washcoat towards the face of the substrate. The baffle comprises 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 (25) circumferentially arranged around the impermeable central body.