Patent ID: 7309279

Claim:
A cabinet for supporting electronic assemblies, comprising: A. a base, B. a top panel vertically spaced from said base, C. a front panel, a back panel and two side panels extending between said top panel and said base, and defining an interior region for containing said electronic assemblies, D. a bracket assembly adapted to support said electronic assemblies in a vertical array in said interior region, E. a first vertical flow path disposed between said front panel and said interior region, F. a second vertical flow path disposed between said back panel and said interior region, wherein said first vertical flow path and said second vertical flow path are in fluid communication by way of a plurality of transverse flow paths extending through said interior region from said first vertical flow path to said second vertical flow path, G. a plurality of fans in an array supported by a panel disposed between said interior region and said second vertical flow path, each of said fans having an inlet in fluid communication with said transverse flow paths and an outlet in fluid communication with said second vertical flow path, H. a cap flow path extending from said second vertical flow path to said first vertical flow path, thereby forming a plurality of closed flow paths, each closed flow path including at least a portion of said first vertical flow path, one of said transverse flow paths, at least a portion of said second vertical flow path, and said cap flow path, and I. a heat exchanger disposed along said cap flow path.