Abstract: A seal for a regenerative air preheater. The seal is comprised of two members that each have a plurality of tabs and slots. The tabs and slots interlock so that the tabs on one member are positioned adjacent the slots on the other member. Further, the tabs have a narrow neck section and a wider sealing section. The wider sealing sections overlay and the narrow neck sections are positioned within a recessed region of the notch on the opposite member so as to interlock the two members. Preferably, the neck sections do not significantly overlap thereby providing greater flexibility for each of the tabs. The seal is mounted either to the rotor or to the inner wall of the housing so as to extend through the bypass gap between the rotor and the inner wall of the housing. As the tabs are flexible, the tabs can resiliently deform as a result of the tabs making contact with the sealing surface of the heat exchanger.

Abstract: An arrangement is provided in an air preheater for mounting and adjusting the axial seal plates in relation to the rotor using a reduced number of adjustable mountings and replacing the remaining adjustable mountings with adjustable compression stops. These adjustable compression stops engage but require no attachment to the axial seal plates. This reduces the work necessary in the limited space between the air preheater housing and the axial seal plates thereby reducing costs and facilitating installation and replacement.

Abstract: A liquid cooled heat exchanger particularly adapted to cool heat sinks of an electrical power supply for large electronic systems. The heat exchanger has thin flexible walls. Pressure of the coolant within the heat exchanger assures a positive mechanical contact between the heat exchanger and the heat sink, one that can accommodate changes in dimensions of the heat sink or heat exchanger and a lack of planarity of the surfaces of the heat sink without increasing the thermal impedance between the liquid in the heat exchanger and the heat sink. Fluid flow within the heat exchanger is controlled so that heat transfer efficiency between certain areas of the flexible walls and the coolant is maximized, which areas are proximate to the heat sources mounted on the heat sink.