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Dual Motor Air Moving Device

IP.com Disclosure Number: IPCOM000112478D
Original Publication Date: 1994-May-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Miller, WC: AUTHOR [+2]

Abstract

Increased blower life is accomplished using a dual motor arrangement driving a common blower wheel through the use of a roller clutch bearing system.

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Dual Motor Air Moving Device

      Increased blower life is accomplished using a dual motor
arrangement driving a common blower wheel through the use of a roller
clutch bearing system.

      As shown in the Figure, blower wheel 1 is coupled to motor 2
and motor 3 through the roller clutch bearings 4 and 5 which are
pressed fit into the blower wheel.  Both motors are wired and the
roller clutch assemblies are mounted such that the blower wheel will
turn in the same direction when either motor is energized.  During
typical operation, motor 2 is energized and motor 3 is at rest.  The
blower wheel is driven by clutch bearing 4 while clutch bearing 5 is
free to turn operating as a roller bearing.  Should motor 2 be
de-energized or fail, motor 3 would become energized and take over
the driving function through roller clutch bearing 5.  A rotation
sensor on the motors could be used as a monitoring device for
controlling the blower operation.