Air flow system for a disk file

摘要

An air flow system for a disk file is disclosed in which air is pumped under pressure past the disk surfaces to remove contaminants and past a voice coil actuator to cool the motor and returned to an inlet in the pump. A thermostatically controlled air diverter is placed in the air circulating path to reduce the range of temperature change in the disks and thus minimize the track misregistration problems which might occur as a result of differential thermal expansion of the disks and related components. The thermostatically controlled diverter valve functions to control the volume of normally lower temperature ambient air entering the system by controlling the volume of air exhausted from the system in accordance with the temperature of the air being circulated.