Methods and systems are provided for heat exchangers including a first outer plate, a second outer plate, and an intermediate plate. The intermediate plate is positioned between the outer plates. Fluid flow passages are formed between the intermediate plate and each of the outer plates.

The invention relates to an evaporator (111), notably for a motor vehicle air conditioning circuit (100), comprising a stack of plates forming tubes (300) for the circulation of a refrigerant fluid together delimiting air passages to cool an air flow (250) flowing through said passages through the evaporator (111).

According to the invention, at least one of said tubes (300) has a single flow path (315a, 315b, 315c) for said refrigerant fluid between an inlet orifice (310) and an outlet orifice (320), said flow path (315a, 315b, 315c) comprising a plurality of successive passes, said inlet orifice (310) of said at least one tube (300) being in fluid communication with a refrigerant fluid inlet port (210) of said evaporator (111), and said outlet orifice (320) of said at least one tube (300) being in fluid communication with a refrigerant fluid outlet port (220) of said evaporator (111).

The invention relates to a phase-change material reservoir 9 for a heat exchanger of an air-conditioning installation of a vehicle, the reservoir 9 being arranged between two reservoir plates 10a, 10b and having filling means 14, characterized in that the filling means 14 include at least one tube 15 delimiting a filling channel 19 arranged outside the reservoir 9 against a first plate 10a of the reservoir 9.

A heat transfer device including a body bounding a cavity for receiving a heat transfer medium, an inlet, and an outlet for providing a fluid connection to the cavity is provided. Interconnecting elements are provided at each of the inlet and outlet for providing a fluid connection to the inlet and the outlet. At least one interconnecting element is configured to interconnect with, and provide relative movement between and a substantially consistent fluid connection with, an interconnecting element of an adjacent device, such as a similar heat transfer device, over a range of spacing between bodies of the devices.

A heat exchanger has a turbulating insert arranged between a pair of plates. The turbulating insert is permeable to fluid flow in both a high-pressure-drop direction and a low-pressure drop direction. One portion of the turbulating insert has the high-pressure-drop direction oriented at a non-zero angle to the high-pressure-drop direction of another portion. A method of making the heat exchanger includes forming a turbulating insert, removing a portion of the turbulating insert to create a cavity within the turbulating insert, placing the remaining turbulating insert into a stamped first plate, and placing the removed portion of the turbulating insert into the cavity at a non-zero angle of rotation relative to the remaining turbulating insert.

The present invention provides a gravity-driven gas-liquid circulation device, comprising a condensation unit and an evaporation unit. The condensation unit has an end connected to a gaseous phase input tube and another end connected to a liquid phase output tube. The evaporation unit comprises a thermally conductive base for contact with an external high-temperature device, a plurality of fins integrally formed on the thermally conductive base, and an integrally formed sealing housing provided on the thermally conductive base and enclosing the fins, wherein the integrally formed sealing housing is provided with a gas outlet hole and a liquid inlet hole, the gas outlet hole is lower than the gaseous phase input tube and is connected to an end of the gaseous phase input tube in order to guide a high-temperature gaseous-state working fluid through the gaseous phase input tube to the condensation unit, and the liquid inlet hole is level with or lower than the liquid phase output tube and is connected to an end of the liquid phase output tube in order to receive a liquid-state working fluid, allowing a force of gravity acting on the liquid-state working fluid to provide a siphoning force and thereby cause circulation of the liquid-state working fluid and the gaseous-state working fluid.

The present disclosure provides a liquid-cooling type double-sided cooler, including a first cooling portion and a second cooling portion. In the liquid-cooling type double-sided cooler, another end of the first cooling portion is formed with a first communication hole that is configured to penetrate the first cooling liquid path and an outside of the first cooling portion, another end of the second cooling portion is formed with a second communication hole that is configured to penetrate the second cooling liquid path and an outside of the second cooling portion; and the first cooling portion and the second cooling portion are positioned such that the first communication hole and the second communication hole face each other, and the first cooling liquid path and the second cooling liquid path are connected with each other.

The present disclosure provides a liquid-cooling type double-sided cooler, including a first cooling portion and a second cooling portion. In the liquid-cooling type double-sided cooler, another end of the first cooling portion is formed with a first communication hole that is configured to penetrate the first cooling liquid path and an outside of the first cooling portion, another end of the second cooling portion is formed with a second communication hole that is configured to penetrate the second cooling liquid path and an outside of the second cooling portion; and the first cooling portion and the second cooling portion are positioned such that the first communication hole and the second communication hole face each other, and the first cooling liquid path and the second cooling liquid path are connected with each other.

Provided is an aluminum alloy clad material including an aluminum alloy core material, an intermediate layer material that is clad on one surface of the core material, and a first brazing filler metal that is clad on a surface of the intermediate layer material, the surface not being on the core material side, wherein the core material, the intermediate layer material, and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of AlMn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 m inclusive in the intermediate layer material before brazing heating is at least 1.010.sup.5 pieces/mm.sup.2, and the existence density of AlMn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 m inclusive in the intermediate layer material after brazing heating is at least 1.010.sup.4 pieces/mm.sup.2. Further provided is a method for producing the aluminum alloy clad material.

A cassette for use in cassette-type heat exchanger has an inlet and an outlet, and include an upper plate and a lower plate. The upper and lower plates are sealed together around an edge area of the cassette, thereby forming a flow path within the cassette between the inlet and outlet. The plates are formed with a stamped pattern that increases the surface area of the plates as compared to a flat plate surface. The pattern includes a series of weld points whereby the upper and lower plate are welded or bonded together at a point location.