Four times as cool
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riLAIMED to be four times more efficient than conventional coolers, two ranges of water-cooled oil-coolers introduced by Serck Radiators Ltd. have a special feature —a patented guide-flow principle. They provide a high heat-transfer potential combined with compactness. Thirty-four variants are made in the range of larger coolers and 20 for the smaller units.
The tubestack, or cooling element, comprises a number of aluminium/brass tubes which pass axially through a series of spaced segmented fins divided into equal groups by baffle plates. Oil enters the tubestack through an integral screwed port in the shell and is directed over the tubes by baffles to guide the flow through the tubestack along a path that gives maximum contact with the cooling surfaces. In effect, the segmented baffles divide the tubestack into cooling chambers, the inlet to each chamber being on the opposite side of the tubestack to the inlet of the next chamber.
Following a sinusoidal route across the surface of the fins from chamber to chamber, this type of oil flow enables larger diameter tubes (it in.) to be employed which reduces the possibility of clogging.
Maximum pressures at the maximum working temperature of 248°F (120°C) are 30 p.s.i. through the tubes and 200 p.s.i. over the tubes.
Made by: Serck Radiators Ltd., Warwick Road, Birmingham 11.