A plate heat exchanger, which includes a flexible structure and/or a heating channel between the first support end plate of the plate pack and the first end plate of the outer casing, and/or an inner tube arranged inside the inlet connection tube of the first heat exchange medium for improving plate heat exchanger's ability to withstand thermal stresses caused by temperature differences, e.g. when using in heating of liquefied natural gas.

A heat exchanger including a sealed housing and a body positioned inside the housing, the body including a stack of least one first assembly of first and second plates pressed against each other, between which flows a first fluid, and at least one second assembly of third and fourth plates pressed against each other, between which flows a second fluid, the first and second assemblies being arranged so that they transfer heat between the first and second fluids. This configuration limits the risk of leaks and mixing of the two fluids.

A shell-and-plate heat exchanger includes: a shell forming an internal space; and a plate stack, disposed in the internal space, including heat transfer plates that are stacked and joined together. The shell-and-plate heat exchanger is configured to allow a refrigerant that has flowed into the internal space to evaporate. The plate stack forms: refrigerant channels that communicate with the internal space and through which a refrigerant flows; and heating medium channels that are blocked from the internal space and through which a heating medium flows. Each of the refrigerant channels is adjacent to an associated one of the heating medium channels with one of the heat transfer plates interposed therebetween. The shell-and-plate heat exchanger further includes one or more supply structures that supply the refrigerant to the refrigerant channels such that the refrigerant flows downward.

A heat exchanger for a heating, ventilation, air conditioning, and refrigeration (HVAC&R) system includes a base portion having a first plurality of channels extending therethrough and a second plurality of channels extending therethrough. The heat exchanger further includes a first manifold and a second manifold, where the first plurality of channels extends from the first manifold to the second manifold, and a third manifold and a fourth manifold, where the second plurality of channels extends from the third manifold to the fourth manifold. The heat exchanger further includes a single part having the base portion, the first manifold, the second manifold, the third manifold, and the fourth manifold.

A heat exchanger, in particular for a motor vehicle, comprising: a first conduit for a first fluid, comprising a first manifold, a second manifold, and a plurality of tubes arranged in at least two parallel stacks having a first terminal tube and a second terminal tube opposite to the first terminal tube, the tubes being fluidly connected with the first manifold and the second manifold to provide at least one U-turn for the first fluid; a second conduit for a second fluid comprising a housing body arranged to at least partially encapsulate the first conduit, wherein the second conduit is fluidly isolated from the first conduit and, a baffle plate deployed in-between the stacks of the tubes and the manifolds, enabling a U-turn of the second fluid in the vicinity of the first manifold, characterised in that, the baffle plate comprises a first restricting member protruding towards the first manifold, configured to partially limit the U-turn of the second fluid at the level of the first terminal tubes of the stacks.

A heat exchanger system includes a core-in-shell heat exchanger and a liquid/gas separator. The liquid/gas separator is configured to receive a liquid/gas mixture and to separate the gas from the liquid. The liquid/gas separator is connected to the core-in-shell heat exchanger via a first line for transmitting gas from the liquid/gas separator to a first region in the core-in-shell heat exchanger and connected to the core-in-shell heat exchanger via a second line for transmitting liquid from the liquid/gas separator to a second region of the core-in-shell heat exchanger.

A shell-and-plate heat exchanger includes: a shell that forms an internal space and includes a refrigerant outlet at a top of the shell; and a plate stack disposed in the internal space and that includes heat transfer plates that are stacked and joined together. The shell-and-plate heat exchanger is configured to allow a refrigerant that has flowed into the internal space to evaporate. The refrigerant outlet emits a gas refrigerant out of the internal space through the refrigerant outlet. The plate stack forms: refrigerant channels that communicate with the internal space and through which a refrigerant flows; and heating medium channels that are blocked from the internal space and through which a heating medium flows. Each of the refrigerant channels is adjacent to an associated one of the heating medium channels with one of the heat transfer plates interposed therebetween.

A shell and plate heat exchanger includes a shell forming an internal space, and a plate stack housed in the internal space. The plate stack includes a plurality of heat transfer plates stacked and joined together. The shell and plate heat exchanger allows a refrigerant that has flowed into the internal space to be condensed. A refrigerant channel communicates with the internal space and allows the refrigerant to flow through. A heating medium channel is blocked from the internal space and allows a heating medium to flow through. The refrigerant channel and the heating medium channel are alternately arranged between adjacent heat transfer plates. A meandering portion is provided in at least a lower portion of the plate stack. The meandering portion is configured to meander the refrigerant condensed on a surface of each of the heat transfer plates. The meandering portion is provided by processing the heat transfer plates.

A shell-and-plate heat exchanger includes: a shell forming an internal space; and a plate stack, disposed in the internal space, including heat transfer plates that are stacked and joined together. The shell-and-plate heat exchanger is configured to allow a refrigerant that has flowed into the internal space to evaporate. The plate stack forms: refrigerant channels that communicate with the internal space and through which a refrigerant flows; and heating medium channels that are blocked from the internal space and through which a heating medium flows. Each of the refrigerant channels is adjacent to an associated one of the heating medium channels with one of the heat transfer plates interposed therebetween. The shell-and-plate heat exchanger further includes one or more supply structures that supply the refrigerant to the refrigerant channels such that the refrigerant flows downward.

A heat exchanger plate for use in a plate package for a heat exchanger device is disclosed. The plate has a geometrical main extension plane (q) and a circumferential edge portion, the circumferential edge portion having a curved upper portion, a substantially straight lower portion and two opposing side portions interconnecting the upper and the lower portions. An upper porthole is arranged in an upper section of the heat exchanger plate and located at a distance from the upper portion of the circumferential edge portion thereby defining an upper intermediate portion. The upper intermediate portion includes the shortest distance (d2) between a centre of the upper porthole and the upper portion of the circumferential edge portion. The heat exchanger plate further comprises an upper flange having an extension along the upper portion of the circumferential edge portion. The upper flange has a length (L2) as seen in a direction transverse the shortest distance (d2), being 200-80% of the diameter (D2) of the upper porthole and more preferred 180-120% of the diameter (D2) of the upper porthole. Further, a plate package is disclosed and also a heat exchanger device using such heat exchanger plate/plate package.