The present invention relates to a multi-mode thermal management assembly with a selectable coolant flow path, and in particular to an assembly that selectably removes latent and/or sensible heat. Coolant (working fluid) is routed through openings in the bottom of the thermal management assembly. The assembly can have two heat exchangers (coolers), each having side-by-side vertical paths whereby coolant both enters and exits from the heat exchangers at their respective bottoms. Plumbing is provided that can be selected to route coolant for one of the user selected cooling modes. Valves allow the user to select at least between a combination mode (latent cooling with sensible reheat) and a sensible only cooling mode. In the combination mode, the latent heat exchanger cools and dehumidifies, and the sensible heat exchanger partially reheats the air while requiring no additional work to be done on the system by external power consuming devices.

A multi-step method is disclosed for exchanging heat in a vapor compression heat transfer system having a working fluid circulating therethrough. The method includes the step of circulating a working fluid comprising a fluoroolefin to an inlet of a first tube of an internal heat exchanger, through the internal heat exchanger and to an outlet thereof. Also disclosed are vapor compression heat transfer systems for exchanging heat. The systems include an evaporator, a compressor, a dual-row condenser and an intermediate heat exchanger having a first tube and a second tube. A disclosed system involves a dual-row condenser connected to the first and second intermediate heat exchanger tubes. Another disclosed system involves a dual-row evaporator connected to the first and second intermediate heat exchanger tubes.

In a heat exchanger, a second fluid flowing space communicating with second tubes is formed to be divided from a first tank space within a tank unit forming a first tank space that collects or distributes a refrigerant. The tank unit is defrosted by a coolant flowing in the second fluid flowing space, which is higher in temperature than the refrigerant flowing in the first tank space. With this configuration, heat from the second fluid flowing in the second fluid flowing space included in the tank unit is effectively transferred to a portion of the tank unit which is likely to be frosted.

In a refrigerant evaporator, a first refrigerant collector defined in a tank portion of a first evaporation unit is connected to a second refrigerant distributor defined in a tank portion of a second evaporation unit, and a second refrigerant collector defined in the tank portion of the first evaporation unit is connected to a first refrigerant distributor defined in the tank portion of the second evaporation unit. The refrigerant evaporator includes a connection channel to connect a first refrigerant channel that introduces refrigerant from a heat-exchange core portion of the first evaporation unit to a heat-exchange core portion of the second evaporation unit and a second refrigerant channel that introduces refrigerant from a heat-exchange core portion of the second evaporation unit to a heat-exchange core portion of the first evaporation unit.

A cooling package for a vehicle, such as an agricultural tractor, having a charge air cooler assembly configured such that airflow is routed through a charge air cooler multiple times in order to cool a compressed charge of air. As the temperature rise experienced by the cooling airflow is relatively minor compared to the initial temperature of the compressed charge of air, the airflow is initially routed through an outlet-side portion of the charge air cooler to cool the compressed charge of air towards the outlet side of the charge air cooler, and subsequently routed through an inlet-side portion of the charge air cooler to cool the compressed charge of air towards the inlet side of the charge air cooler.

A combination heat exchanger comprises a first heat exchanger assembly and a second heat exchanger assembly. The first heat exchanger assembly includes a first end tank, a second end tank, and a first heat exchanger core including a plurality of first heat exchanger tubes extending longitudinally in a first direction. The second heat exchanger assembly includes a third end tank, a fourth end tank, and a second heat exchanger core including a plurality of second heat exchanger tubes extending longitudinally in the first direction. A first coupling includes a first attachment portion rigidly coupled to the first end tank, a second attachment portion rigidly coupled to the third end tank, and a thermal expansion portion extending between the first attachment portion and the second attachment portion. The first coupling is configured to allow for relative translation between the first end tank and the third end tank in the first direction.

A refrigerant evaporator includes: a first heat exchange part in which refrigerant flows to exchange heat with fluid to be cooled; a second heat exchange part arranged to oppose the first heat exchange part; a first tank arranged below the first heat exchange part to distribute the refrigerant to the first heat exchange part; a second tank arranged below the second heat exchange part to collect the refrigerant flowing through the second heat exchange part; and a third tank joined to the first tank and the second tank by brazing. A projection part is formed at one of joint portions between the first tank and the third tank. An insertion part is formed at the other of the joint portions between the first tank and the third tank, and the projection part is inserted in the insertion part.

A radiator arrangement for a motor vehicle the motor vehicle is driven by an internal combustion engine or at least partially electrically, with a first heat exchanger that is connected to a coolant circuit of the motor vehicle; and with a second heat exchanger that is connected to a refrigerant circuit of the motor vehicle. With respect to a main direction of an air flow through the radiator arrangement, the first heat exchanger is arranged in front of the second heat exchanger, and a first base area of the first heat exchanger that is exposed to the air flow is smaller than a second base area of the second heat exchanger that is exposed to the air flow. The first base area is dimensioned such that it overlaps the second base area only in an inlet-side region with respect to the refrigerant flow in the second heat exchanger.

A heat exchanger array includes a first row of heat exchangers, a second row of heat exchangers, and side curtains. The first row heat exchangers are spaced apart to define first gaps. The second row heat exchangers are spaced apart to define second gaps and are positioned downstream of and staggered from the first row heat exchangers such that the second row heat exchangers are aligned with the first gaps and the first row heat exchangers are aligned with the second gaps. Each side curtain is in close proximity to a first row heat exchanger and a second row heat exchanger. The side curtains define a neck region upstream of and aligned with each first row heat exchanger and each second row heat exchanger. Each neck region has a neck area that is less than a frontal area of the heat exchanger with which it is aligned.

A vehicle heat exchanger includes a low-temperature side radiator, a condenser, and a high-temperature side radiator, which are aligned in an airflow direction and are integrated together. The low-temperature side radiator includes an inflow portion and an upper path, which are located in an upper portion thereof. In addition, the low-temperature side radiator includes a lower path and an outlet portion, which are located in a lower portion thereof and communicate with the upper path. A subcooler of the condenser overlaps, in the airflow direction, with at least a part of the lower path of the low-temperature side radiator. As a result, thermal influence by the low-temperature side radiator on the subcooler of the condenser can be reduced.