Patent ID: 7559356
Filing Date: 2009-07-14
Classification: C02F,F04B,F28D,F28F,G06F

Abstract:
1. A heat transfer system comprising: a) a first primary heat exchanger receiving heat from a first heat source; b) first and second secondary heat exchangers exhausting heat to first and second heat sinks; c) a second primary heat exchanger receiving heat from a second heat source; d) third and fourth secondary heat exchangers exhausting heat to third and fourth heat sinks; e) a conduit connecting the first and second secondary heat exchangers to opposite sides of the first primary heat exchanger, and the third and fourth secondary heat exchangers to opposite sides of the second primary heat exchanger, the first secondary heat exchanger and the third secondary heat exchanger being fluidly connected in series; f) an electrokinetic pump fluidly connected at one side thereof to the second secondary heat exchanger and at the other side thereof to the fourth secondary heat exchanger and pumping a heat exchange fluid between the primary heat exchangers and the secondary heat exchangers through the conduit; and g) a fluid flow controller coupled to the electrokinetic pump; wherein the electrokinetic pump is operated in a cyclic mode by the controller such that in one portion of a cycle the electrokinetic pump operates in a first direction and in a second portion of the cycle the electrokinetic pump operates in a second direction.