Abstract: A fluid-cooling system for the edge-cooling of semiconductor tiles that are arranged into rows and columns and are mounted on one or more panels is constructed with a coolant supply and return pipe and individual coolant supply and return lines for each of the panels. Fluid flows in separate fluid-cooling passageways for each of the columns of tiles. The passageways are coupled between the coolant supply line and the coolant return line for the panel. The passageways follow a winding path that provides cooling for a major portion of the periphery of all of the tiles that are in a column and for a minor portion of the periphery of all of said tiles that are in adjacent columns. The remaining edges of the tiles in the outermost columns of tiles of a panel that are not cooled by the outermost passageways are cooled by passageway segments that direct fluid from said fluid-cooling passageways. The tiles have a rectangular shape and may contain multi-chip semiconductor modules.

Abstract: A rotary regenerative air heater or heat exchanger in which a series of parallel adjacent plates contained in a plurality of sectorial baskets make up the heat transfer surface. A plurality of bolts permit quick and easy periodic tightening of the heating plates when they become loose within the basket, thereby preventing abrasion and vibratory failure of such plates.