A heat removal system for a computer has a heat sink and a spool rotatably disposed in the heat sink. The spool includes fluid inlets and outlets, and water circulates in a closed loop from the inlets, through the spool, through the outlets, past the computer component to be cooled, and between the heat...http://www.google.se/patents/US6945314?utm_source=gb-gplus-sharePatent US6945314 - Minimal fluid forced convective heat sink for high power computers