Browse Prior Art Database

Air Flow Restrictor

IP.com Disclosure Number: IPCOM000053179D
Original Publication Date: 1981-Sep-01
Included in the Prior Art Database: 2005-Feb-12
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Haliwell, RA: AUTHOR [+2]

Abstract

A disk drive includes an air-flow restrictor that has a cavity 1 formed underneath a pulley 2. Feed air slots 3 enable ambient air to enter the cavity to feed the vacuum. Further vacuum reduction is achieved by means of radial ridges 4, disposed within the cavity, that create air turbulence, thereby diminishing the centrifugal flow of air. The labyrinth 5, which forms the cavity, also helps in the reduction of air flow through the pulley and associated bearing.

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Air Flow Restrictor

A disk drive includes an air-flow restrictor that has a cavity 1 formed underneath a pulley 2. Feed air slots 3 enable ambient air to enter the cavity to feed the vacuum. Further vacuum reduction is achieved by means of radial ridges 4, disposed within the cavity, that create air turbulence, thereby diminishing the centrifugal flow of air. The labyrinth 5, which forms the cavity, also helps in the reduction of air flow through the pulley and associated bearing.

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