Patent ID: 7832231

Claim:
A heat exchanger comprising: a first manifold configured to receive a mixed phase flow of liquid and vapor that at least partially separates in the first manifold and comprising a liquid section configured to collect the liquid and a vapor section configured to collect the vapor, wherein the liquid section and the vapor section each extend along a common length of the first manifold to form a continuous interior volume of the first manifold; a second manifold; and a plurality of multichannel tubes in fluid communication with the first and second manifolds, each of the multichannel tubes having a first end disposed in the first manifold, a second end disposed in the second manifold, and a plurality of flow paths extending between the first and second ends, wherein the first ends extend into the continuous volume of the first manifold to direct liquid phase flow from the liquid section through some of the flow paths and vapor phase flow the vapor section through other flow paths.