Patent ID: 7311139

Claim:
A heat exchanger for dissipating heat from a fluid, comprising: a plurality of stacked pairs of plates, each pair of plates including: a first plate extending along a first axis and having first and second sides, the first side of the first plate having a generally sinusoidal recess therein that extends along the first axis; and a second plate extending along a second axis and having first and second sides, the first side of the second plate having a generally sinusoidal recess therein that extends along the second axis and that is out of phase with the sinusoidal recesses in the first side of the first plate; wherein: the first side of the first plate and the first side of the second plate form a mating relationship with each other; and the first side of the first plate and the first side of the second plate defining a plurality of axially spaced openings that allow the recess in the first side of the first plate to communicate with the recess in the first side of the second plate.