Patent ID: 8033326

Claim:
A heat exchanger comprising: a stack assembly including: a plurality of plates, each of the plates having a plurality of first openings; and a plurality of frames arranged in an alternating stacked relationship with the plates along a stack direction, each of the frames having: a plurality of second openings including a frame inlet opening and a frame outlet opening; a longitudinal inlet channel fluidly communicating with the frame inlet opening and extending in a longitudinal direction substantially perpendicular to the stack direction; a longitudinal outlet channel fluidly communicating with the frame outlet opening; and at least one transverse channel extending in a transverse direction substantially perpendicular to both the stack direction and the longitudinal direction, the transverse channel fluidly communicating between the longitudinal inlet channel and the longitudinal outlet channel; a first fluid flow path extending through the stack assembly and the plurality of first and second openings; and a second fluid flow path extending through the stack assembly and the plurality of first and second openings and in thermal contact with the first fluid flow path and fluidly isolated from the first fluid flow path.