Hanon Systems

Visteon Global Technolgoies, Inc.

Audi Ag

Halla Visteon Climate Control Corporation

Peter Heyl

Marc Graaf

Dirk Schroeder

Radim Cech

Frank Obrist

Peter Kuhn

Toni Spies

Felix Girmscheid

Hans Hammer

Radek Slavik

Jörg Bodewig

Navid Durrani

Christian Rebinger

Tobias Haas

Martin Hötzel

Stephan Köster

Daniel Zens

Christoph Bara

Petr Czyz

Ján Gregus-Kollár

Dominik Prinz

Jiri Dobner

Andreas Emmerich

Roberto Della Rovere

Petr Daniel

Hartmut Helm

Heinrich Ittner

Herr René Junker

Jiri Dvorsky

Martina Paduch

Milan Moravek

Joern Froehling

Engelbert Schmitz

J&ouml;rn Fr&ouml;hling

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.

Compact heat exchanger unit for electric vehicle particularly and air conditioning module

A thermal management arrangement for vehicles includes a refrigerant circuit having a chiller function and/or heat pump function and a heat carrier network for cooling and/or heating components of the vehicle. The heat carrier network has a heat carrier reservoir and a plurality of heat carrier supply segments fed from the heat carrier reservoir. A separately controlled and regulated ambient heat exchanger supply segment implements a circuit having a central low-temperature ambient heat exchanger and least one heat carrier reservoir.

Thermal management arrangement for vehicles and method for operating a thermal management arrangement

A thermal management arrangement for vehicles, having a refrigerant circuit with at least one refrigerant compressor, a condenser/gas cooler, an expansion element and an evaporator, a cold carrier circuit with a cold carrier distributor reservoir and a heat carrier circuit with a heat carrier distributor reservoir, wherein the refrigerant circuit is thermally connected to the cold carrier circuit via the evaporator and to the heat carrier circuit via the condenser/gas cooler, and wherein a battery heat exchanger supply section is arranged and embodied with a battery heat exchanger and an environmental heat exchanger supply section is arranged and embodied with an environmental heat exchanger such that they are respectively fluidly connected to the cold carrier distributor reservoir and to the heat carrier distributor reservoir.

Compact heat exchanger unit and air conditioning module particularly for electric vehicle

A motor vehicle chiller with several evaporators of different cooling capacity, has a refrigerant circulation with at least one refrigerant compressor, at least one condenser, at least one expansion element as well as at least two evaporators disposed in parallel of different cooling capacity. A refrigerant collector is disposed downstream of the expansion element and upstream of the evaporator of lesser cooling capacity to separate liquid refrigerant. Between the refrigerant collector and the evaporator a refrigerant pump is disposed to convey the liquid refrigerant to the evaporator of lesser cooling capacity. The refrigerant vapor can be guided from the evaporator across the refrigerant collector functioning as a separator and be drawn in by the refrigerant compressor.

Motor vehicle cooling device with several evaporators of different cooling capacity

A method for operating an air-conditioning system of a motor vehicle, wherein the air-conditioning system comprises a refrigerant circulation and a water circulation which are thermally coupled with one another across a condenser/gas cooler. Water circulation flows through the condenser/gas cooler at a low volumetric rate of flow and a high temperature difference so the water circulation transfers heat in the heating heat exchanger to the air in a similar temperature range. Refrigerant circulation cools from 65&#xb0; C. to 70&#xb0; C. to &#x2212;10&#xb0; C. to +30&#xb0; C. and water circulation raises to a temperature of 55&#xb0; C. to 65&#xb0; C. and that an adaptation of the temperature profile of the water circulation to the temperature profile of the refrigerant circulation takes place in the condenser/gas cooler utilizing a temperature glide of the refrigerant. The refrigerant is significantly cooled.

Method for operating an air-conditioning system of a motor vehicle

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

The invention relates to a device for heat exchange, in particular in a refrigerant circuit, with at least one first flow path and at least one second flow path, which, in a cross section perpendicular to a longitudinal direction of the device, are disposed coaxially with respect to one another, and each of which comprises at least one flow channel. The device is realized of a synthetic material.

Plastic material internal heat exchanger

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

A device for heat distribution in a hybrid motor vehicle includes an engine cooling circuit and a refrigerant circuit for a combined operation in a refrigeration heat pump mode and a reheating mode. The refrigerant circuit includes an evaporator, a compressor, a heat exchanger to supply heat from the refrigerant to air being conditioned for a passenger compartment, and a heat exchanger to transfer heat between a refrigerant of the refrigerant circuit and coolant of the engine cooling circuit. The heat exchanger operates as an evaporator for the heat transfer from the coolant to the evaporating refrigerant, and alternatively operates as a condenser for the heat transfer from the condensing refrigerant to the coolant.

Heat distribution in a motor vehicle

The present invention relates to the heat exchangerof refrigerant circuitry of an air-conditioning system for a vehicle, which enables a bidirectional pass flow. The air-conditioning system is configured to perform a combined operation of cooling device mode and heat pump mode, the heat exchangeris formed in the form of a multi-pass, and the flow direction of a refrigerant varies depending on operation mode. The first heat exchangerformed in the form of a multi-pass includes header pipesand, flow paths assigned to respective passes, and means configured to partition an internal volume space of one or more header pipesandinto independent regions. A first pass of the heat exchangerhas a greater flow cross section and greater heat exchange surface than the last pass.

Heat exchanger for refrigerant circuitry

The invention relates to an air conditioning system for conditioning the air of a passenger space of a motor vehicle, the system including a refrigerant circuit with a compressor, a first heat exchanger for the heat exchange between the refrigerant and the environment and a second heat exchanger for supplying heat from the refrigerant to the air supply to be conditioned for the passenger space. The refrigerant circuit further includes, in the flow direction of the refrigerant after the compressor, a valve arrangement. The valve arrangement comprises a branch, a first valve arranged between the branch and the second heat exchanger, and a second valve arranged between the branch and the first heat exchanger. The first valve is designed with a normally open (NO) valve characteristic and the second valve with a normally closed (NC) valve characteristic.

Air conditioning system for a motor vehicle

A refrigeration plant with refrigerant evaporator arrangement and process for parallel air and battery contact cooling. The refrigeration plant includes a refrigerant evaporator arrangement for parallel air and battery contact cooling, having with a refrigerant compressor and a condenser An evaporator with an assigned controllable expansion member for air cooling and an evaporator as a battery contact cooler with an assigned controllable expansion member for battery cooling are provided. A throttling member is located between the evaporator and the tap of the assigned controllable expansion member.

Refrigeration plant with refrigerant evaporator arrangement and process for parallel air and battery contact cooling

The invention relates to a method for operating an air conditioner () for treating the air of a passenger compartment of a motor vehicle. The air conditioner () exhibits a refrigerant circuit () configured for a combined cooling unit and heat-pump mode and for a post-heating mode. In the heat-pump mode with a first and a second heat source, two heat sources differing from each other can be used. A temperature of the first heat source, a temperature of the second heat source, and a regulation characteristic number and a maximum pressure are taken into account in the refrigerant circuit () for operating the air conditioner () in a heat-pump mode. The invention additionally relates to a method for switching between the two heat-pump modes.

Growing community of inventors

Cologne, Germany

Peter Heyl