Abstract: An exemplary heat exchanger includes increased stiffness to prevent buckling of a core. In some examples, an exemplary heat exchanger includes a core and a shaft at least partially positioned therein to increase stiffness of the core and located to limit movement of a heat exchange portion and to receive loads therefrom. In another example, an exemplary heat exchanger includes a core, a duct in fluid communication therewith, a load bearing member positioned adjacent to the core, and a mount which attaches the duct to the member. By connecting the duct to the member, the duct can transfer loads to the load bearing member. This protects the core being damaged by loads applied to the duct. The mount restrains the duct so to transfer loads, from the duct to the load bearing member. Such loads can be from external sources, such as inertia loads and vibration loads.

Abstract: In at least one embodiment, the invention is a heat exchanger with increased stiffness to prevent buckling of the core and which carries externally produced loads without damage to the core. In some embodiments, the present invention is a heat exchanger having a core with a heat exchange portion, and a shaft with at least part of it positioned in the core to increase the stiffness of the core. The shaft is positioned at least adjacent to the heat exchange portion of the core. The shaft is also located to limit movement of the heat exchange portion and to receive loads from the heat exchange portion. The shaft can be positioned through some or the entire heat exchange portion of the core. In another embodiment, the heat exchanger includes a core, a duct in fluid communication with the core, a load bearing member positioned adjacent to the core, and a mount which attaches the duct to the load bearing member.

Abstract: A vibration damper is provided on the cooling module of an internal combustion engine to attenuate the response of the module to low frequency road excited vibration.

Abstract: An annular recuperator for use with a gas turbine engine including radial outflow passageways for the exhaust gases from the turbine engine in heat transfer relationship with enclosed passageways for air being delivered to the combustor of the turbine engine. The annular recuperator includes stress relief features to prevent thermal cycling fatigue failures of the annular recuperator.

Abstract: A device for floatably supporting a portion of a heat exchanger core to a shell for accommodating thermal expansion.

Abstract: A combination structure interconnecting and sealing means for joining an air duct with the end plate of a heat exchanger core to allow for variations in spatial dimensions resulting from thermal expansion. The coupling arrangement comprises a circumferential flange attached, as by welding, to the circular duct. The periphery of the flange is provided with radial slots which are engaged underneath T-shaped clips attached to the heat exchanger plate. Within the circumference of the flange and generally in line with the duct and associated manifold section of the end plate is a U-shaped bladder member extending entirely around the joint and welded to provide a seal between the end of the duct and the plate. Similar bladder members are provided between adjacent units making up an overall heat exchanger core.

Abstract: A device for floatably supporting a portion of a heat exchanger core to a shell for accommodating thermal expansion while damping oscillatory movement of the core.