Abstract: A device for cooling a fluid to be compressed in a compressor, in particular a refrigerant, with a heat carrier fluid. The device has at least one first flow channel for guiding the fluid, at least one second flow channel for guiding the heat carrier fluid and an inlet and an outlet for the heat carrier fluid.

Abstract: A compressor module for a refrigerant circuit of a motor vehicle air-conditioning system, exhibiting a modular multi-part housing with a low-pressure refrigerant inlet, a high-pressure refrigerant outlet and a compressor, characterized in that an inner heat exchanger of the refrigerant circuit is produced such that it is integrated into the compressor module, wherein the housing of the compressor module fully encloses the inner heat exchanger.

Abstract: An expansion and isolation valve, specifically an electric expansion and isolation valve for operation with the coolant R744, featuring a valve body arranged in a valve body chamber, a seal seat, and a seal, which are arranged along an axial movement direction of the valve body in the expansion valve. The expansion valve is further designed such that in a closed state of the expansion valve, there is a pressure bypass to the valve body chamber, and preferentially, that a valve body diameter at the positions of the seal seat and the seal corresponds with the respective seal diameters.

Abstract: An air conditioning system of a motor vehicle with a refrigerant circuit for operation in a refrigerator mode and a heat pump mode. The refrigerant circuit includes a primary circuit with a compressor, a heat exchanger for heat transfer between the refrigerant and the surroundings, an expansion element and a heat exchanger for heat transfer from the intake air being conditioned for the passenger compartment to the refrigerant, and a first flow path. The flow path extends from a branching point between the compressor and the heat exchanger to an opening and includes a heat exchanger for heat transfer from the refrigerant to the intake air being conditioned for the passenger compartment. The heat exchanger is situated in a flow direction of intake air of the passenger compartment after the heat exchanger.

Abstract: An expansion and isolation valve, specifically an electric expansion and isolation valve for operation with the coolant R744, featuring a valve body arranged in a valve body chamber, a seal seat, and a seal, which are arranged along an axial movement direction of the valve body in the expansion valve. The expansion valve is further designed such that in a closed state of the expansion valves, there is a pressure bypass to the valve body chamber, and preferentially, that a valve body diameter at the positions of the seal seat and the seal corresponds with the respective seal diameters.

Abstract: An air conditioning system of a motor vehicle with a refrigerant circuit for operation in a refrigerator mode and a heat pump mode. The refrigerant circuit includes a primary circuit with a compressor, a heat exchanger for heat transfer between the refrigerant and the surroundings, an expansion element and a heat exchanger for heat transfer from the intake air being conditioned for the passenger compartment to the refrigerant, and a first flow path. The flow path extends from a branching point between the compressor and the heat exchanger to an opening and includes a heat exchanger for heat transfer from the refrigerant to the intake air being conditioned for the passenger compartment. The heat exchanger is situated in a flow direction of intake air of the passenger compartment after the heat exchanger.

Abstract: The invention relates to a compact vehicle HVAC system including an evaporator unit, a condenser unit, and a component unit, as well as a refrigerant circuit. The evaporator unit and the condenser unit each are provided with air-passed heat exchangers and a fan in a casing. Further circuit components are displaced within the component unit. The casings of the evaporator unit, the condenser unit, and the component unit advantageously establish a connected compact casing arrangement. The heat exchangers are displaced within the compact casing arrangement. The refrigerant circuit is established for a combined refrigeration plant and heat pump operation as well as an afterheating operation, whereby in the afterheating operational mode the heating power of the afterheater established as condenser/gas cooler and the cooling power of the evaporator are controllable independently of each other.

Abstract: The invention relates to a compact vehicle HVAC system including an evaporator unit, a condenser unit, and a component unit, as well as a refrigerant circuit. The evaporator unit and the condenser unit each are provided with air-passed heat exchangers and a fan in a casing. Further circuit components are displaced within the component unit. The casings of the evaporator unit, the condenser unit, and the component unit advantageously establish a connected compact casing arrangement. The heat exchangers are displaced within the compact casing arrangement. The refrigerant circuit is established for a combined refrigeration plant and heat pump operation as well as an afterheating operation, whereby in the afterheating operational mode the heating power of the afterheater established as condenser/gas cooler and the cooling power of the evaporator are controllable independently of each other.

Abstract: The invention relates to a connection unit having a multi-channel heat exchanger with high-pressure channels and low-pressure channels and a connection element with a high-pressure reservoir and a low-pressure reservoir, both with a connection for connection. The axial end of the multi-channel heat exchanger is limited by a termination element that has axial passage holes for the high-pressure flow to the high-pressure reservoir. At the axial end of the multi-channel heat exchanger, in the region of the low-pressure reservoir, longitudinal slots are formed through which the low-pressure flow flows from the low-pressure channel to the low-pressure reservoir.

Abstract: The invention relates to a heat exchanger for vehicles. The heat exchanger includes a core provided with a row of spaced heat exchanger tubes, open at their ends, and at least one dosed container arranged in the tube end regions for the distribution of a medium flowing through the heat exchanger tubes. Each container includes a tube holding element and a container closure element, connected to each other in a sealed manner. The heat exchanger tubes are put through the tube holding element, connected to it and form spaces between each other. The container closure element is rigidly connected to at least one associated container comb, the teeth of which extend toward the heat exchanger core and are located within the container-interior at the spaces between the heat exchanger tubes and are in rigid connection to at least the tube holding element.

Abstract: A tube coupling for the detachable coupling of tube line sections of a high-pressure tubing system. The tube coupling includes two coupling blocks held together by a clamping screw, whereby one of the coupling blocks has a coupling plug that engages a plug socket provided on the other coupling block. A sealing ring is formed of a plastically deformable material and is enclosed between a front face of the coupling plug and a bottom-side sealing surface of the plug socket. In order to protect the sealing ring from being lost, damages and/or contaminated during assembly or opening and dosing the coupling, in a preassembled condition it is enclosed within a protective socket. To homogeneously load the sealing ring, the sealing ring is located at one point of a supporting triangle, the two other supporting points of being formed by a pair of supporting surfaces arranged side by side at an outer end of side flanges of the coupling blocks.

Abstract: The invention relates to a heat exchanger for vehicles. The heat exchanger includes a core provided with a row of spaced heat exchanger tubes, open at their ends, and at least one dosed container arranged in the tube end regions for the distribution of a medium flowing through the heat exchanger tubes. Each container includes a tube holding element and a container closure element, connected to each other in a sealed manner. The heat exchanger tubes are put through the tube holding element, connected to it and form spaces between each other. The container closure element is rigidly connected to at least one associated container comb, the teeth of which extend toward the heat exchanger core and are located within the container-interior at the spaces between the heat exchanger tubes and are in rigid connection to at least the tube holding element.

Abstract: The invention relates to a connection unit having a multi-channel heat exchanger with high-pressure channels and low-pressure channels and a connection element with a high-pressure reservoir and a low-pressure reservoir, both with a connection for connection. The axial end of the multi-channel heat exchanger is limited by a termination element that has axial passage holes for the high-pressure flow to the high-pressure reservoir. At the axial end of the multi-channel heat exchanger, in the region of the low-pressure reservoir, longitudinal slots are formed through which the low-pressure flow flows from the low-pressure channel to the low-pressure reservoir.

Abstract: A tube coupling for the detachable coupling of tube line sections of a high-pressure tubing system. The tube coupling includes two coupling blocks held together by a damping screw, whereby one of the coupling blocks has a coupling plug that engages a plug socket provided on the other coupling block. A sealing ring is formed of a plastically deformable material and is enclosed between a front face of the coupling plug and a bottom-side sealing surface of the plug socket. In order to protect the sealing ring from being lost, damages and/or contaminated during assembly or opening and dosing the coupling, in a preassembled condition it is enclosed within a protective socket. To homogeneously load the sealing ring, the sealing ring is located at one point of a supporting triangle, the two other supporting points of being formed by a pair of supporting surfaces arranged side by side at an outer end of side flanges of the coupling blocks.

Abstract: A heat exchanger module includes a glycol coolant circuit adapted to function as a heat pump for the heating of the interior passenger compartment of the motor vehicle with a glycol/water mixture as the heat carrier, a refrigerant circuit, and a glycol/refrigerant heat exchanger positioned between and interconnecting the cooling circuit and the refrigerant circuit, wherein the glycol/refrigerant heat exchanger has integrated connection lines for heat transfer from the coolant circuit to the refrigerant circuit.

Abstract: A heat exchanger module includes a glycol coolant circuit adapted to function as a heat pump for the heating of the interior passenger compartment of the motor vehicle with a glycol/water mixture as the heat carrier, a refrigerant circuit, and a glycol/refrigerant heat exchanger positioned between and interconnecting the cooling circuit and the refrigerant circuit, wherein the glycol/refrigerant heat exchanger has integrated connection lines for heat transfer from the coolant circuit to the refrigerant circuit.

Abstract: A heat exchanger, particularly for a thermal coupling of a glycol/water cooling system circuit and a refrigerant circuit in a motor vehicle includes a plurality of first plates having first flow channels for refrigerant and a first reservoir in fluid communication with the first flow channels integrally formed therein, a plurality of second flow plates having second flow channels for a glycol/water mixture, and a second reservoir mounted to a side of said heat exchanger and in fluid communication with the second flow plates.