A heat sink is provided for transferring heat to air flowing from an upstream path. The heat sink includes a support portion and a plurality of fins extending from the support portion. The fins and the support portion together define channels at least one of which has a portion angled with respect to...http://www.google.ca/patents/US6847525?utm_source=gb-gplus-sharePatent US6847525 - Forced convection heat sink system with fluid vector control
