US Patent 7992625 Fluid-operated heat transfer device

Method and apparatus for heat transfer are described. In particular, a heat transfer device includes a housing having input and output ports for ingress and egress of a medium. The housing defines an interior volume with a first portion having pins extending therein and a second portion defined in part by a network of micro-channels. An interface between the first portion and the second portion of the interior volume has orifices for providing passageways for flow of the medium therebetween. A first portion of the pins are spaced apart from the interface to promote generation of vortices of the medium in the first portion of the interior volume.