A rotary heat exchanger may be mounted at either the hub or the rim. In either case, the mounting system must be capable of thousands of hours of operation, unlub ried, and in a highly oxidizing environment at temperatures in excess of 250°C (482° F). The development of both a hubmounted and a rim mounted system is described in this paper, and pertinent test .
ElroSeal™ Rotary Shaft Seal Standard type HN 2390 frictionoptimized Compared with the standard version of type HN 2390, the frictionoptimized special type has a significantly lower friction coefficient. Properties: Also suitable for soft shafts Lower generation of frictional heat Suitable for high circumferential speeds Small clearances