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Browse Prior Art Database

Motor Blower Assembly

IP.com Disclosure Number: IPCOM000081080D
Original Publication Date: 1974-Apr-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Akin, JW: AUTHOR [+2]

Abstract

A fan having a parabolic hub and an end bell having a slanted cutoff adjacent an exit port are connected to a motor, for increasing air flow

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Motor Blower Assembly

A fan having a parabolic hub and an end bell having a slanted cutoff adjacent an exit port are connected to a motor, for increasing air flow

Motor 1 has air inlet ports 2 in housing 10. An air deflector ring 4 is secured in the end of housing 10 between ports 2 and fan 11 which is mounted on shaft
3. Fan 11 has a parabolic hub 5 and curved blades 6. End bell 7 is secured to the end of housing 10 and houses fan 11. Exit port 9 of bell 7 is defined adjacent curved blades 6 by a slanted cutoff 8. In operation, air enters ports 2, is deflected by ring 4, and directed to blades 6 by hub 5. The air will then exit through port 9 past cutoff 8. The configuration of ring 4, hub 5, and blades 6 is for maximizing air flow, while the configuration of cutoff 8 is for reducing noise which would otherwise result from a sharp cutoff.

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