Air cooled multiliquid heat transfer unit

1,166,586. Cooling systems. INTERNATIONAL BUSINESS MACHINES CORP. 23 May, 1968 [26 June, 1967], No. 24576/68. Addition to 1,126,180. Heading F4U. In cooling apparatus of the type described in Specification 1,126,180 the superimposed second liquid is cooled by a heat conducting member which extends into the liquid and dissipates heat to a fluid surrounding the container. As shown, the member comprises a lower set of fins 32 depending into the liquid 16 and an upper set of fins 36 over which ambient air is blown by a fan 38, air inlets 40 being provided in the walls of the container 22. In a modification (Figs. 3 and 4, not shown) the fins extend vertically and are arranged in rows, each row being encased in a rectangular housing which communicates at its lower end with the ambient atmosphere. Air thus flows by convection through the spaces between the ajdacent fins of each row and leaves the container through apertures in the top wall thereof.