Patent ID: 6607027
Filing Date: 2003-08-19
Classification: F01M,F28D,F28F

Abstract:
A heat exchanger for exchanging heat between first and second fluids, the heat exchanger having an outer periphery radially spaced from a central axis, the heat exchanger comprising:a first inlet for flow of the first fluid, the first inlet located adjacent the outer periphery: a first outlet for flow of the first fluid, the first outlet located adjacent the outer periphery: a pair of juxtaposed tube segments coiled about the central axis to form a plurality of alternating concentric coils, one of the segments having an end connected to the first inlet to receive flow of the first fluid therefrom, the other of the segments having an end connected to the first outlet to deliver flow of the first fluid thereto, the tube segments further being connected adjacent the central axis to transfer flow of the first fluid between the tube segments: a second inlet for flow of the second fluid into the heat exchanger; a second outlet for flow of the second fluid from the heat exchanger; means for encapsulating said pair of tube segments to retain the second fluid within the heat exchanger as it flows from the second inlet to the second outlet; and a manifold connecting the tubes segment adjacent to the central axis to transfer flow of the first fluid between the tube segments.