Apple has been granted a patent (number 8305728) by the U.S. Patent & Trademark Office for a . It involves a cooling system that blows ionized air through an electronic device, controlling its path by creating electromagnetic fields that can be dynamically adjusted to direct cooling where it's needed.
Embodiments provide various apparatus and techniques for deflecting or redirecting a flow of ionized air generated from an ionic wind generator. In general, a deflection field generator can be located proximate to the path of the flow of ionized air. The deflection field generator is configured to generate an electromagnetic field, which deflects a least a portion of the flow of ionized air to a different path and may possibly increase local heat transfer.
Here's Apple's background on the invention: "Many modern electronic systems generate a large amount of heat, and a variety of different cooling mechanisms may be used to cool these electronic systems. For personal...| Read more »