Air-flow system for a disk file.

摘要

An air-flow system for a disk file is divided by a partition (14) into two compartments (15, 16). A spindle (32) is journalled in the partition for driving both a recording disk (18) in one compartment (15) and a fan (34) in the other compartment (16). The fan drives air through a main filter (38) across the disk and back to an intake plenum to which make-up air is also fed from a breather filter, the impedance of which is very high compared to that of the main filter. This assures that pressure in the disk compartment exceeds that of the fan compartment so that any flow of air through the spindle bearing passes through the main filter before reaching the disk - thus assuring a clean atmosphere at the disk.