Hanon Systems

Halla Visteon Climate Control Corporation

Visteon Global Technolgoies, Inc.

Audi Ag

Marc Graaf

Navid Durrani

Gerald Richter

Roberto Della Rovere

Tobias Haas

Peter Heyl

Toni Spies

Roman Heckt

Florian Wieschollek

Felix Girmscheid

Stephan Köster

Dirk Schroeder

Christian Rebinger

Martin Hötzel

Christoph Bara

Daniel Zens

Dominik Prinz

Corinne Le Pellec

Torsten Klein

Dominik Wiechard

Ján Gregus-Kollár

Markus Herzog

Jörn Fröhling

Andreas Emmerich

Jiri Dobner

Balthasar Schillemeit

Frank Schmitz

Martina Paduch

Herr René Junker

Eric D Pierre

Engelbert Schmitz

Hartmut Helm

Heinrich Ittner

Jiri Dvorsky

Julia Roeb

Milan Moravek

Joern Froehling

Karl Schlesinger

A valve () is introduced for a heat pump system in a motor vehicle, with at least one inlet (), at least two outlets () and a valve element () which comprises at least one throughlet () and at least one expansion recess () that can be brought into fluidic connection with at least one outlet ().

3-2 way expansion valve

A heat-exchanger including a device for separating oil from a coolant-oil mixture and cooling the oil and cooling and/or liquefying the coolant. The heat exchanger features a first area cooling and/or liquefying the coolant, and a second area cooling the oil. The heat exchanger further features at least two manifolds. The first area of the heat exchanger features flow channels guiding the coolant, and the second area of the heat exchanger features flow channels guiding the oil. The flow channels extend between the manifolds. Each of the flow channels has a respective outside flooded by a heat-absorbing fluid.

Oil management in a refrigeration system&#x2014;compressor oil cooler integrated into gascooler

The invention relates to a device and a method for icing prevention regulation for a heat pump evaporator () in air conditioning systems of vehicles, composed of a subsection () of a refrigerant circuit which can be operated both as a heat pump and also as an air conditioning system. The device comprises the heat pump evaporator (), an electrical or mechanical refrigerant compressor (), a cooler fan () which is attached to the heat pump evaporator () and which draws ambient air () upstream from and through the heat pump evaporator () at an adjustable flow speed, and which thus permits a permanent flow of ambient air () over the heat pump evaporator surface, a first temperature sensor () in or on the refrigerant line () upstream from the heat pump evaporator () with respect to the heat pump operating direction, and a control and regulating unit (). The control and regulating unit () is connected via signal lines () at least to the first temperature sensor (), to further sensors, in particular for detecting the ambient air temperature (Tu) and the vehicle speed (V), to the expansion valve (), to the cooler fan () and to the refrigerant compressor () for the direct or indirect regulation of the flow cross section of the expansion valve () and the rotational speed of the electric refrigerant compressor () or of the regulating valve of the mechanical refrigerant compressor () and for the actuation of the cooler fan () of the vehicle during heat pump operation.

Device and method for icing prevention regulation for heat pump evaporators

A climate control system for conditioning air of a motor vehicle passenger compartment and a method for operating same includes a climate control unit with a housing with a first flow channel and a second flow channel for conducting air, a refrigerant circulation and first and second coolant circulation. Refrigerant circulation is implemented with refrigerant-air heat exchanger operable as evaporator independently of operating mode Refrigerant-air heat exchanger is disposed within housing of the climate control unit. First refrigerant-coolant heat exchanger operates as condenser/gas cooler independently of operating mode. Second refrigerant-coolant heat exchanger operates as evaporator independently of the operating mode are disposed outside of housing of climate control unit. First coolant circulation comprises second refrigerant-coolant heat exchanger and heat exchangers for conditioning components of power train and a battery heat exchanger. Second coolant circulation is implemented with first refrigerant-coolant heat exchanger and with heating heat exchanger disposed within the housing of the climate control unit.

Climate control system of a motor vehicle and method for operating the climate control system

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.

Heat pump system with additional heat source for evaporation of refrigerant

System and method for operating the system for climatizing air of a passenger compartment and for heat exchange with drive components of motor vehicles includes a coolant circuit and refrigerant circuit with a compressor, a refrigerant-air heat exchanger, operated as condenser/gas cooler, at least one expansion element, at least one heat exchanger, operated as evaporator, for conditioning an air-mass flow supplied to the passenger compartment; this is implemented as refrigerant-air heat exchanger, and at least one heat exchanger, operated as evaporator, which is implemented as refrigerant-coolant heat exchanger and disposed within the coolant circuit for heat transfer from coolant to refrigerant. The refrigerant circuit includes a heat exchanger, operated as condenser/gas cooler, which acts as refrigerant-coolant heat exchanger and is disposed within the coolant circuit for heat transfer from refrigerant to coolant. The coolant circuit is implemented with at least one heat exchanger for heat exchange with a drive component.

AC-system with very high cooling capacity

An apparatus for separating and storing liquid refrigerant in a refrigerant circuit including a housing configured as a refrigerant collection container, the housing having a refrigerant outflow line disposed therein. The refrigerant outflow line extending from an inlet opening, which is disposed in a gas refrigerant region and above a level of the liquid refrigerant, via a liquid refrigerant region to the outside, and has a through-opening formed in the liquid refrigerant region. The housing includes a boiling element for liquid refrigerant disposed therein. The boiling element is connected to the refrigerant outflow line in the region of the through-opening, such that a liquid passing through the through-opening from the housing passes through the boiling element by suction of a gas refrigerant.

Apparatus for separating and storing liquid refrigerant in refrigerant circuit

The invention concerns an air conditioning system for the conditioning of the air of a passenger compartment of a motor vehicle. The air conditioning system has a refrigerant circuit with a compressor, a refrigerant-coolant heat exchanger for desuperheating the refrigerant after the compression, a first refrigerant-air heat exchanger and a second refrigerant-air heat exchanger, and at least one coolant circuit. The coolant circuit has a heating heat exchanger for heating an air mass flow being supplied to the passenger compartment. The refrigerant-coolant heat exchanger is designed as a component of the coolant circuit having the heating heat exchanger. The air conditioning system is designed for an operation in refrigerator mode, in heat pump mode, and in afterheating mode for the heating, cooling, and dehumidification of the air being supplied to the passenger compartment. A valve arrangement switches the air conditioning system between the different operating modes.

Air-conditioning system of a motor vehicle and method for operating the air-conditioning system

A refrigerant circuit for a vehicle air conditioning system with heat pump function includes at least one evaporator, a compressor, and a condenser. The refrigerant circuit for the vehicle air conditioning system further includes an expansion element. A supplemental evaporator is arranged upstream from the compressor in a separate fluid guiding arrangement in the refrigerant circuit.

Refrigerant circuit for a vehicle air conditioning system with heat pump

An air-conditioning system for conditioning air in a vehicle passenger compartment is configured to operate in a cooling system mode for cooling air to be supplied to the passenger compartment and in a heat pump mode for heating the same, and to operate in a reheating mode. The air-conditioning system includes a housing having a first flow channel and a second flow channel for guiding air to an air distribution system having discharge ports communicating with the passenger compartment, and a refrigerant circulation system having at least two heat exchangers. In this case, the first heat exchanger that operates as an evaporator regardless of operating modes is disposed in the first flow channel, and the second heat exchanger that operates as a condenser/gas cooler regardless of operating modes is disposed in the second flow channel.

Air-conditioning system for cooling and drying air in passenger compartment of vehicle

An air conditioning system for a motor vehicle operable in refrigeration mode and in heat pump mode, as well as in reheating mode. The operating mode adjusted by controlling air dampers and air directing elements. The air conditioning system has a housing having a cold air flow path a warm air flow path, and an air outlet. The air outlet formed in the region of the cold air flow path and discharging air into the environment. The warm air flow path branches off from the cold air flow path. The cold air flow path and the warm air flow path lead into a first mixing chamber. The air conditioning system further includes a refrigerant circuit having a heat exchanger operable as an evaporator, a compressor, a heat exchanger operable as a first condenser/gas cooler, a heat exchanger operable as a second condenser/gas cooler, and an expansion element.

HV iCool light HVAC

Vehicle climate control system and method for control of the vehicle climate control system for temperature regulation of a vehicle battery, the vehicle climate control system includes a refrigerant circuit containing at least a compressor, a gas cooler/condenser, an expansion element, an evaporator, as well as refrigerant lines to connect the components, wherein an intermediate expansion element is arranged upstream from the expansion element in the refrigerant flow direction and a heat exchanger for the temperature regulation of a vehicle battery is arranged between the expansion elements.

Chiller integration into vcool system

An air conditioning system for conditioning air of a passenger compartment of a motor vehicle. The air conditioning system operable in a cooling mode, a heat pump mode, and a reheating mode, the system includes an enclosure with a first flow channel and a second flow channel conducting air, and a refrigerant circulation system with a heat exchanger operable as an evaporator independent of the operating mode and a heat exchanger operable as a condenser independent of the operating mode. Both heat exchangers are located inside the enclosure. The refrigerant circulation system also includes a heat exchanger outside of the enclosure and inside the refrigerant path, an expansion element upstream from the evaporator in the flow direction of the refrigerant, and a bypass parallel to the refrigerant path to channel the refrigerant around the heat exchanger as needed.

Modular designed high performance heat pump system for a vehicle with low waste heat radiation

The invention relates to an air conditioning system for a motor vehicle, with at least two coolant circuits as well as a refrigerant circuit. The refrigerant circuit comprises a compressor for the compression of the refrigerant, a heat exchanger for the cooling and liquefying of the compressed refrigerant, an expansion device, and a heat exchanger for the evaporation of the two-phase refrigerant. The heat exchangers are designed as coolant-refrigerant heat exchangers in each case for the heat transfer between the refrigerant circuit and at least one of the coolant circuits. The refrigerant circuit is moreover constructed with a heat exchanger for the heat exchange between the refrigerant and an air mass flow to be supplied to the passenger compartment of the motor vehicle as well as with an element, arranged downstream of the heat exchanger in the flow direction of the refrigerant, for changing the throughflow cross section.

R744 based heat pump system with a water cooled gas cooler for cooling, heating and dehumidification of an EV/HEV

The invention concerns an air conditioning system for conditioning the air of a passenger compartment of a motor vehicle including a housing with a first flow channel and a second flow channel for conducting air and a refrigerant circuit with an evaporator and a condenser. The evaporator is arranged in the first flow channel and the condenser in the second flow channel. The air conditioning system is designed for cooling and heating the passenger compartment and for a reheat operation. The setting of the operating mode is done only via the controlling of air guidance mechanisms. One of the heat exchangers evaporator or condenser is arranged with a part of the heat transfer surface in both the first and the second flow channel.

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Krefeld, Germany

Marc Graaf