Turbine rotary cup atomizer

A rotary cup atomizer, eg for atomizing diesel exhaust fluid (DEF) in a turbocharger, comprises a cup 40 having a central axis coincident with the turbine axis A and a concentric frustoconical wall 43 extending from a base 41 and diverging from the central axis A, the edge of the wall 43 distal from...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Atif Mahmood, Stephen David Hughes, Nicholas Kenneth Sharp, Jamie Archer
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NOZZLES PERFORMING OPERATIONS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL STEAM ENGINES TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A rotary cup atomizer, eg for atomizing diesel exhaust fluid (DEF) in a turbocharger, comprises a cup 40 having a central axis coincident with the turbine axis A and a concentric frustoconical wall 43 extending from a base 41 and diverging from the central axis A, the edge of the wall 43 distal from the base 41 defining the open side of the cup 40. The inner surface 44 of the wall 43, facing the axis A, has a plurality of protrusions, eg ribs or fins, and/or recesses, eg straight or helical grooves 46. The groove depth may increase near the open side to form slots 58. Through-holes 70 may be provided in the wall 43. The rotary cup 40 may be integrally formed in the hub (36, fig.8) of a turbine wheel (33). For connecting to a shaft, the cup 40 may be held by a tool (100, fig.9) having protrusions (105) and/or recesses complementary to those of the cup; before the tool is removed, an impeller may be mounted at the other end of the shaft.