A vehicle air conditioning apparatus includes: a refrigerant circuit that adjusts a temperature or a humidity of air in a vehicle compartment, including a compressor, indoor heat exchangers, an outdoor heat exchanger, and expansion valves; a first heat medium circuit that allows a first heat medium absorbing heat released from a first heat releasing body to flow therethrough; a second heat medium circuit that allows a second heat medium absorbing heat released from a second heat releasing body to flow therethrough; a first heat medium heat releasing unit that performs a heat exchange between the refrigerant and the first heat medium to release the heat from the first heat medium to the refrigerant; and a second heat medium heat releasing unit that performs a heat exchange between the first heat medium and the second heat medium to release the heat from the second heat medium to the first heat medium.

A heat pump system for a vehicle, capable of heating up or cooling a battery module by use of a single chiller in which a refrigerant and a coolant exchange heat, simplifying the system, includes: first and second cooling apparatuses; and a battery module, wherein a main heat exchanger provided in an air conditioning apparatus is connected to each of the first and second coolant lines to enable the coolants circulating in the first and second cooling apparatuses to pass therethrough, and a refrigerant passing through the main heat exchanger is selectively condensed or evaporated depending on a vehicle mode through mutual heat exchange with the coolant supplied from one of the first coolant line and the second coolant line, or the coolants supplied through the first and second coolant lines, respectively.

A temperature-robust polymer shroud for a roller bearing seal includes a shroud body and an inner diameter leg defining respective portions of a single continuous part. The shroud body encircles a rotation axis of the polymer shroud and extends predominantly in directions orthogonal to the rotation axis from an inner diameter to an outer diameter. The inner diameter leg connects to the shroud body at the inner diameter and encircles the rotation axis, wherein, along the entire inner diameter of the shroud body, the inner diameter leg is oriented at an oblique angle to the rotation axis to extend both (a) radially inward from the inner diameter and (b) axially away from the inner diameter along a first direction parallel to the rotation axis. A roller bearing seal includes a seal case, an elastomer lip, and the temperature-robust polymer shroud.

A thermal management module for a thermal management system is disclosed. The thermal management module includes a first heat exchanger for flowing through by a refrigerant and by a working medium fluidically separately with respect to the refrigerant. A second heat exchanger is provided including at least a first fluid path and at least a second fluid path, separate from the first fluid path, respectively for flowing through by the refrigerant. A connecting arrangement is arranged between the first heat exchanger and the second heat exchanger. The connecting arrangement connects the first heat exchanger and the second heat exchanger to one another mechanically and fluidically, so that the refrigerant can flow between the first heat exchanger and the second heat exchanger.

A compact heat exchanger unit within an air conditioning apparatus for a vehicle, and a condenser region for the condensation of refrigerant is formed as a heat exchanging surface, and a high-pressure-refrigerant collector region as a refrigerant collector is formed in the integrated form as a plate packet of a heat exchanger within a plate heat exchanger.

A refrigerant management system in a heat flux management system for an electric vehicle and a method of refrigerant management is provided. The system includes a vehicle air conditioning circuit including a heat pump circuit and a refrigeration cycle refrigerant circuit, the air conditioning circuit including a heat pump condenser in thermal communication with a heat source, a refrigerant evaporator in thermal communication with the heat source, an evaporator associated with an expansion valve, and a refrigerant compressor where the components are fluidly connected to one another by a refrigerant line. An accumulator is fluidly coupled in the refrigerant line downstream of the heat pump condenser, the refrigerant evaporator and evaporator and upstream of the refrigerant compressor, and the air conditioning circuit is switchable between a heating mode and a cooling mode in which the refrigerant circuit is in fluid communication with the compressor by actuation of at least one valve.

A heat pump includes a refrigerant loop. The refrigerant loop includes a first heat exchanger, a first region of a second heat exchanger, a third heat exchanger, a fourth heat exchanger, a compressor, a vapor generator, and a four-way valve. The compressor includes a low-pressure inlet, a mid-pressure inlet, and an outlet. The vapor generator is positioned downstream of the outlet of the compressor and upstream of both the low-pressure inlet and the mid-pressure inlet. The four-way valve is positioned immediately upstream of the first heat exchanger. At least one component chosen from the first heat exchanger, the second heat exchanger, and the vapor generator is free from compressor-driven flow of the first heat exchange fluid during a first predetermined set of heating modes of operation of the heat pump and a first predetermined set of cooling modes of operation of the heat pump.

A header box includes a first bottom plate and an unperforated cover plate. The first bottom plate includes a first surface and a second surface opposite to the first surface. The first bottom plate is of a one-piece configuration. The first surface is recessed inwardly to form a straight first hole extending along a length direction. The second surface is recessed inwardly to form at least two straight second holes extending along a width direction perpendicular to the length direction. The first hole is communicated with the at least two second holes. The cover plate is connected to the first surface to block an opening of the first hole on the first surface. A heat exchanger having the header box is also disclosed.

An integrated thermal management module for a vehicle includes a multi-channel including a plurality of valve spaces and a plurality of coolant channels communicating with the valve spaces and disposed around the valve spaces, a plurality of valve bodies inserted into the valve spaces, respectively, and configured to open and close the coolant channels around the valve spaces of the multi-channel upon operation, and a plurality of pumps coupled to the multi-channel. The valve spaces are formed on one side of the multi-channel, the valve bodies are coupled to the one side of the multi-channel, the pumps are coupled to an opposite side of the multi-channel, and a rotation axis of each of the valve bodies and a rotation axis of each of the pumps are identical.

A compact heat exchanger unit within an air conditioning apparatus for a vehicle, and a condenser region for the condensation of refrigerant is formed as a heat exchanging surface, and a high-pressure-refrigerant collector region as a refrigerant collector is formed in the integrated form as a plate packet of a heat exchanger within a plate heat exchanger.