A heat exchanger includes a first tube extending along a central axis. The first tube defines a chamber that contains a first medium. A corrugated sheath of the heat exchanger is disposed radially outward from and extends circumferentially about the outer face for transferring heat through the inner tube.

A coaxial heat exchanger is provided. Embodiments of the present disclosure relate to a coaxial heat exchanger for use in water source heat pumps or other applications involving fluid to fluid heat transfer. Embodiments of the present disclosure allow for the use of pre-existing engineered tubing with a textured or riffled interior surface and a folded fin intermediate member. Some methods of the present disclosure involve annealing and hydrostatically expanding the engineered tubing to increase contact and thermal transfer between the inner tube and the intermediate member. Additional systems, devices, and methods are also disclosed.

A heat exchanger includes a first flow path through which a first fluid flows, a second flow path through which a second fluid flows, and an adjustment layer disposed between the first flow path and the second flow path adjacent to each other and that adjusts an amount of heat exchange between the first flow path and the second flow path. The adjustment layer includes a first portion and a second portion having a heat transfer performance lower than that of the first portion, and has a heat transfer performance varied depending on a position in the adjustment layer.

Disclosed is an evaporator for an ice maker including: a refrigerant pipe having a circular cross-section, with refrigerant flowing therethrough; and a pair of ice making plates disposed on opposite sides of the refrigerant pipe. The refrigerant pipe is disposed between inner side surfaces of the ice making plates facing each other, and rounded parts are provided by being formed outwards at a place where the refrigerant pipe is located such that the rounded parts cover both sides of the refrigerant pipe by being in close contact therewith.

A heat exchanger including a plurality of parallel fins, and at least one tube passing through the parallel fins, wherein the tube carries a fluid that exchanges heat with air passing through the heat exchanger. The parallel fins each include a plurality of air deflecting members formed therein. Each air deflecting member is bent substantially orthogonally relative to a planar surface of each fin, and each air deflecting member is configured to direct the air passing through the heat exchanger to increase turbulence of the air, and to impinge the air against adjacent parallel fins, and to balance air flow across the heat exchanger and decrease maldistribution of the air flow through the heat exchanger.

A heat exchanger is disclosed. The heat exchanger includes a protective device, mutually parallel tubes through which a first fluid circulates, and perpendicular fins connecting two successive flat tubes, a second fluid circulating between said flat tubes by passing through said fins, the protective device being apertured so as to allow the circulation of the second fluid through the fins. The protective device includes fixing spikes which are inserted forcibly between the fins.

A heat exchanger including a plurality of parallel fins, and at least one tube passing through the parallel fins, wherein the tube carries a fluid that exchanges heat with air passing through the heat exchanger. The parallel fins each include a plurality of air deflecting members formed therein. Each air deflecting member is bent substantially orthogonally relative to a planar surface of each fin, and each air deflecting member is configured to direct the air passing through the heat exchanger to increase turbulence of the air, and to impinge the air against adjacent parallel fins, and to balance air flow across the heat exchanger and decrease maldistribution of the air flow through the heat exchanger.

A heat exchanger includes a first flow path through which a first fluid flows, a second flow path through which a second fluid flows, and an adjustment layer disposed between the first flow path and the second flow path adjacent to each other and that adjusts an amount of heat exchange between the first flow path and the second flow path. The adjustment layer includes a first portion and a second portion having a heat transfer performance lower than that of the first portion, and has a heat transfer performance varied depending on a position in the adjustment layer.

An annular heat exchanger comprising at least two circumferentially enclosed tube profiles (1, 2) arranged inside each other for media flow and having a thermal conductive structure (3) arranged inside. The thermal conductive structure (3) comprises a helically tightly wound pair of bands (4, 5) lying on each other, the first band (4) being smooth, the other band (5) being corrugated transversally to the winding direction to create flow channels (6).

A heat exchanger includes a first tube extending along a central axis. The first tube defines a chamber that contains a first medium. A corrugated sheath of the heat exchanger is disposed radially outward from and extends circumferentially about the outer face for transferring heat through the inner tube.