A heat exchanger assembly including an elongated tubular heat exchanger enclosure defining an interior chamber. A tube sheet is positioned within the interior chamber of the heat exchanger enclosure separating the interior chamber into a shell side and a channel side. The interior portion is configured to removably receive a tube bundle positioned within the shell side of the interior chamber. An annular sleeve member is positioned within the channel side of the interior chamber of the heat exchanger enclosure. An annular elastic torsion member is positioned within the channel side of the interior chamber of the heat exchanger such that the sleeve member is positioned between the tube sheet and the elastic torsion member. The elastic torsion member has an inner circumference deflectable relative to its outer circumference for torsioning the elastic torsion member.

A combination heat exchanger comprises a first heat exchanger assembly and a second heat exchanger assembly. The first heat exchanger assembly includes a first end tank, a second end tank, and a first heat exchanger core including a plurality of first heat exchanger tubes extending longitudinally in a first direction. The second heat exchanger assembly includes a third end tank, a fourth end tank, and a second heat exchanger core including a plurality of second heat exchanger tubes extending longitudinally in the first direction. A first coupling includes a first attachment portion rigidly coupled to the first end tank, a second attachment portion rigidly coupled to the third end tank, and a thermal expansion portion extending between the first attachment portion and the second attachment portion. The first coupling allows for relative translation between the first end tank and the third end tank in the first direction.

A heat exchanger assembly including an elongated tubular heat exchanger enclosure defining an interior chamber. A tube sheet is positioned within the interior chamber of the heat exchanger enclosure separating the interior chamber into a shell side and a channel side. The interior portion is configured to removably receive a tube bundle positioned within the shell side of the interior chamber. An annular sleeve member is positioned within the channel side of the interior chamber of the heat exchanger enclosure. An annular elastic torsion member is positioned within the channel side of the interior chamber of the heat exchanger such that the sleeve member is positioned between the tube sheet and the elastic torsion member. The elastic torsion member has an inner circumference deflectable relative to its outer circumference for torsioning the elastic torsion member.

A pressure and/or temperature relief header for use in an HVAC heat transfer coil includes a main body adapted to be secured to bends in fluid coils of the HVAC fluid tube system. The main body includes holes in alignment with holes formed in the bends to enable liquid to pass from the bends into the expansion relief header. The expansion relief headers include a pressure release valve that automatically opens, preferably in response to pressure exceeding a predetermined threshold value or temperature falling below a predetermined value, to release liquid from the expansion relief header and then reseats. A discharge housing collects liquid released through the pressure release valve. A sensor detects the presence of liquid in the discharge housing.

A heat exchanger for severe temperature and fluid flow conditions in one configuration includes a first longitudinal shell, a second longitudinal shell, and a transverse shell extending transversely between the longitudinal shells. The longitudinal shells may be parallel to each other. The shells are fluidly coupled directly together to form a common shell-side space between an inlet and outlet tubesheet. A generally U-shaped assembly of shells is thus formed. The tube bundle has a complementary U-shaped configuration comprising a plurality of tubes which extend through the longitudinal and transverse shells between the tubesheets. An expansion joint fluidly couples each longitudinal shell to one of the tubesheets. The shell-side inlet and outlet nozzle may be fluidly coupled to the expansion joints for introducing and extracting the shell-side fluid from the heat exchanger. In another configuration, the heat exchanger may be L-shaped with tube bundle of the same configuration.

A heating system for heating at least one of a fluid-filled conduit arrangement and a volume of air includes an internal combustion engine provided with engine coolant that flows to and from the engine and is heated thereby. A fluid heat exchanger is provided in fluid communication with a heat transfer fluid stored in a reservoir and the engine coolant of the internal combustion engine. The fluid heat exchanger receives heated engine coolant from the internal combustion engine, and transfers heat from the heated engine coolant to the heat transfer fluid to provide heated transfer fluid. A heat generator is provided in fluid communication with the fluid heat exchanger, and receives the heated transfer fluid from the fluid heat exchanger for further heating. This heated transfer fluid may then be selectively used to heat a conduit or a volume of air.

This disclosure pertains to a device for removing air from a coolant liquid of a coolant system. The device has a body with a swirl pot at one end and a manifold extending from the swirl pot to an opposed end of the body. The swirl pot has a fluid inlet for receiving coolant fluid of a first air concentration and a fluid outlet for discharging coolant fluid of a second concentration less than the first. The manifold has a first fluid pipe connected to a plurality of outlet pipes that extend transversely to the first fluid pipe and are spaced there along.

A combination heat exchanger comprises a first heat exchanger assembly and a second heat exchanger assembly. The first heat exchanger assembly includes a first end tank, a second end tank, and a first heat exchanger core including a plurality of first heat exchanger tubes extending longitudinally in a first direction. The second heat exchanger assembly includes a third end tank, a fourth end tank, and a second heat exchanger core including a plurality of second heat exchanger tubes extending longitudinally in the first direction. A first coupling includes a first attachment portion rigidly coupled to the first end tank, a second attachment portion rigidly coupled to the third end tank, and a thermal expansion portion extending between the first attachment portion and the second attachment portion. The first coupling is configured to allow for relative translation between the first end tank and the third end tank in the first direction.

Air conditioning device (1) with transcritical operating cycle, the device comprising a circuit (4) conveying a refrigerant (5) and successively connecting: the outlet (6) of a compressor (7); a gas cooler (8); the cold circuit (9) of an intermediate cooler (10); an expansion valve (11); a second exchanger (12) having a volume (31, 71) for the circulation of a coolant (21) in a heat-exchange relationship with the refrigerant (5); the inlet (13) of the hot circuit (14) of the intermediate cooler (10); the air conditioning device (1) being characterized in that the second exchanger of type (12) comprises an expansion volume for the coolant (21).

A thermal management module comprising a heat exchanger and an expansion valve assembly is disclosed. The heat exchanger includes a plurality of first plates and a plurality of second plates disposed between two end plates. The first and second plates are alternatingly arranged in a stacked relationship. A divider plate is disposed between one of the first plates and an adjacent one of the second plates to divide the heat exchanger into a first portion (e.g., internal heat exchanger) and a second portion (e.g., chiller). When in the stacked relationship, the plates define at least a first flow path for a relatively high-pressure, high-temperature first fluid from a first circuit (e.g., a liquid refrigerant), a second flow path for a relatively low-pressure, low-temperature first fluid from the first circuit (e.g., liquid refrigerant), and a third flow path for a second fluid from a second circuit (e.g., coolant).