A heat exchanger is provided including a first manifold, a second manifold, and a plurality of heat exchange tube segments fluidly coupling the first and second manifold. The heat exchange tube segments include a bend defining a first slab and a second arranged at an angle to one another. Each of the heat exchange tube segments includes at least a first heat exchange tube and a second heat exchange tube at least partially connected by a web extending there between. The first heat exchange tube and the second heat exchange tube are asymmetrical such that a cross-sectional flow area of the first heat exchange tube is different than that of the second heat exchange tube. A fluid flows sequentially through the first heat exchange tubes of the first slab and the second slab, and then through the second heat exchange tubes of the second slab and first slab.

A holding support (1) for a v-shaped heat exchanger (2) having a flat base plate (3), which on a plate edge (4) comprises or forms a spreading finger holder (7) comprising holding fingers (5, 6) for holding flat tubes (8) of a v-shaped heat exchanger (2) and on a further plate edge (9) comprises or forms a support (10) for supporting the holding support (1). In a v-shaped heat exchanger (2) two holding supports (1) may be used to support the v-shaped heat exchanger (2) on a surface (11).

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 Heat Exchanger Unit comprising a venting unit, a shutter, a counter flow heat exchanger and a plurality of plenums. The venting unit pulls the fresh air from outdoor air through the shutter while it pushes the contaminated inside air through the counter flow heat exchanger and the plurality of plenums toward outside air.

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 that includes a first manifold; a second manifold; a plurality of refrigerant tubes configured to fluidically couple the first and second manifolds; a plurality of fins placed between the plurality of refrigerant tubes, such that the fins and refrigerant tubes define a core having a plurality of open channels that allow air to flow there through; and a water-shedding device positioned approximate to the first manifold with a separation distance being maintained there between. At least a portion of the water-shedding device extends into one or more fin free windows located between the plurality of refrigerant tubes, such that condensate is extracted from between the refrigerant tubes.

Disclosed herein is an integrated multiple heat exchange device and a fuel cell system using the same. The integrated multiple heat exchange device includes a plurality of heat exchangers for consecutively collecting heat contained in a plurality of gases that are present in the fuel cell system and that have different temperatures, wherein the plurality of heat exchangers are separated from each other, a porous separator is placed between the plurality of heat exchangers such that condensate is collected at a lowermost heat exchanger, and a coolant line penetrates a separator to pass through all the plurality of heat exchangers.

A condenser equipped with a refrigerant outlet configured to receive and store liquid refrigerant during an off-cycle is described. The refrigerant outlet may include an outflow pipe surrounded by a weir. The weir may include a port, through which liquid refrigerant in the weir can be directed to, for example, moving parts of the chiller for lubrication. The outflow pipe may extend vertically relative to the bottom of the condenser. In some embodiments, a first opening of the outflow pipe may be positioned higher than the bottom of the condenser in the vertical direction, while the weir may be positioned lower than the bottom of the condenser. Liquid refrigerant in the condenser can flow to and stay in the weir in an off-cycle. During a subsequent start-up, the liquid refrigerant in the weir can be directly quickly to moving parts of the chiller.

Certain exemplary embodiments can provide a system, machine, device, and/or manufacture that is configured for operably releasing condensate received from a condensate-producing unit toward a drain without allowing a substantial quantity of gas to flow through the system, machine, device, and/or manufacture, those embodiments including a float and/or a housing.

An exhaust gas heat exchanger, in particular for use in a motor vehicle, having at least one first flow channel that conducts a first fluid, which first flow channel is accommodated in respective tube sheets at end areas of the first flow channel. A housing surrounds the first flow channel and forms a second flow channel for a second fluid that flows through the housing and flows around the first flow channel. Pipe sheets are inserted into the housing such that the first flow channel is sealed off from the second flow channel. A first diffuser conducts the first fluid into the first flow channel and a second diffuser conducts the first fluid out of the first flow channel. A first shielding element has a first passage and a first spacing element is placed onto a tube sheet from the side facing away from the first flow channel.