A heat exchanger, a heat exchanger unit, and a refrigeration cycle apparatus improve a heat exchange performance, a discharge performance, and a frosting resistance, and each include: a flat tube; a fin formed in the shape of a plate having a plate surface extending in a longitudinal direction of the fin that is perpendicular to a width direction thereof, coincides with an up/down direction, and crosses the tube axis of the flat tube; and a first water conveyance member provided below the fin. The first water conveyance member has: a first upper surface facing a lower end portion of the fin; a first ridge located at one end portion of the first upper surface; and a second ridge located at the other end portion of the first upper surface.

A charge-air cooler includes an airflow path, a heat exchanger in fluid communication with the airflow path, a water reservoir, and a water-wicking plate. The water-wicking plate has a lower portion disposed in the water reservoir and an upper portion disposed in the airflow path, wherein the water-wicking plate includes a water-absorbent material configured to draw water from the water reservoir and to release the water to the airflow path.

The invention relates to a charge air cooler (5) for fuel engine comprising: a casing having an inlet (16) and an outlet (20), a heat exchanger (10) within the casing between the inlet (16) and the outlet (20), a thermally responsive draining mechanism (50, 60) for draining condensates, the draining mechanism (50, 60) being configured to drain condensates when temperature within the charge air cooler (5) is below a defined temperature, draining mechanism comprising a drain port (58, 68), a valve (51, 61, 52, 62, 53, 63) arranged on the drain port (58, 68), an actuation device (53, 63, 64) for moving the valve between an opened state and a closed state,
wherein the actuation device includes a phase change material.

A heat exchanger includes a plurality of heat transfer parts arranged in a first direction and spaced apart from each other, the plurality of heat transfer parts extending in a second direction and allowing refrigerant to flow through inside the plurality of heat transfer parts; a first header extending in the first direction and connected to one end of each of the plurality of heat transfer parts; a second header extending in the first direction and connected to an other end of each of the plurality of heat transfer parts; and a support extending along the first direction and the second direction and having an opening, the support being located at at least one face of the plurality of heat transfer parts in a third direction that is perpendicular to the first direction and the second direction, the support being fixed to the first header and the second header.

A heat exchanger for heat exchange between air and a heat exchange medium includes a plurality of heat transfer conduits arranged parallel to each other as flow paths for the heat exchange medium and a plurality of fin members. The fin members are configured to provide: an air inlet end for air inflow, an air outlet end for air outflow, and an air flow path. The air flow path connects the air inlet end with the air outlet end and allows a heat exchange with the plurality of heat transfer conduits. Each fin member includes a plurality of undulation troughs coplanar with each other and connected together so as to define a water condensate flow path. Each water condensate flow path has a flat bottom which extends from the air inlet end to the air outlet end.

A combination refrigeration displacement and drain device is disclosed that can be mounted within a heat exchanger, such as a shell and tube heat exchanger, which may be used for example as a heat exchanger in a chiller unit, which may be used in an HVAC or refrigeration system. One example of such components can include heat exchangers, such as for example a condenser employing a gravity drain. Advantageously, the combination refrigeration displacement and drain device herein can provide a refrigerant charge reduction for example that is used in the chiller unit, while facilitating drainage out of the heat exchanger. The combination refrigeration displacement and drain device can alleviate the liquid refrigerant accumulation that may normally be necessary to induce flow in a gravity drain design.

A heat exchanger core consists of first and second fluid channels, each configured to direct flow of respective fluids through the heat exchanger core. Each first fluid channel includes first fluid flow assemblies having inner channels formed by inner channel walls that contain the first fluid, each inner channel surrounded by a barrier channel having a barrier channel wall that isolates the barrier channel from the second fluid. One or more barrier channel vanes support the inner channel within the barrier channel. Each barrier channel provides a void space between the inner channel wall and the barrier channel wall, thereby fluidly separating the first fluid from the second fluid. Each barrier channel can receive the first or second fluid in the event of a breach of the inner channel wall or the barrier channel wall, thereby preventing intra-fluid contamination.

The invention relates to an indirect-type air cooler by way of which compressed charge air for an internal-combustion engine is cooled by means of a liquid, wherein the air cooler is constructed from stacked pairs of plates having fins which are disposed therebetween, and the brazed stack is disposed in a housing into which the charge air flows, flows through the fins and exits the housing again. The charge air exchanges heat with the liquid which flows in the plate pairs and which is introducible into the plate pairs via at least one inlet and via inlet-side plate openings which are flush in the stack and is dischargeable via at least one outlet by means of flush outlet-side plate openings. In order to further improve the performance potential of the air cooler, at least one venting element which extends to the exterior through an opening of the housing is connected to a liquid space within the stack.

A heat exchange device and a refrigerant circulation system are disclosed. The heat exchange device includes a housing, defining a first air inlet and a first air outlet; wherein the first air inlet and the first air outlet are spaced apart along a first direction; and a first heat exchange component, arranged in the housing and comprising a plurality of heat exchange fins spaced apart along a second direction; wherein the first heat exchange component is arranged opposite to the first air inlet along a third direction; the second direction is perpendicular to the first direction, and the third direction is perpendicular to the first direction and the second direction.

Two or more cores (2a, 2b) in each of which two more types of passage layers through which two or more fluids flow are layered alternately are welded together. The entire bottom portions of the cores (2a, 2b) are covered with a lower header tank (3), thereby making the fluids flow into the cores (2a, 2b). A dummy layer (14) through which none of the fluids flow is provided beside a weld side face of each core (2a, 2b). A weld spacer (18) is welded to the entire peripheral edge of a side plate (16) of the dummy layer (14). A through-hole (16a) for draining water in the dummy layer (14) is made near the lower end of the side plate of the dummy layer (14). Further, a liquid drain hole (20) through which water is drained is made at a lower corner of the weld spacer (18).