MOTOR COOLING FAN BLADE ASSEMBLY WITH FINGER GUARD

A prop fan blade assembly for a draft inducer motor cooling fan used in a hi gh efficiency furnace includes rings concentric with and attached to an outer blade guard. Cooling air is drawn through the concentric rings by the fan and blown onto the motor. The rings function as a finger guard while pr...

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Bibliographische Detailangaben
Hauptverfasser:	WATERMAN, TIMOTHY J, GARLOCH, DUANE D
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	A prop fan blade assembly for a draft inducer motor cooling fan used in a hi gh efficiency furnace includes rings concentric with and attached to an outer blade guard. Cooling air is drawn through the concentric rings by the fan and blown onto the motor. The rings function as a finger guard while producing a confined airfl ow pattern which does not interfere with burner operation.