Abstract: A rotating valve is provided that includes an inlet region having a plurality of stationary separate inlets for several flows of a fluid and an outlet region having an in particular identical plurality of stationary separate outlets for the flows of the fluid, wherein between the inlet region and the outlet region a switching region having a switching member that can be rotated about an axis is provided, wherein in a first position of the switching member the plurality of inlets are connected to the plurality of outlets in a first association, and wherein in a second position of the switching member the plurality of inlets are connected to the plurality of outlets in a second association, wherein the switching member comprises a plurality of openings through which the fluid flows flow axially in the direction of the rotation axis and which are moved together with the switching member, the openings alternately covering a plurality of stationary, axially directed openings in the course of the rotation of the sw

Abstract: Heat pump comprising a number of hollow elements (2) with a first zone (2a), a second zone (2b) and a working medium which can be displaced in a reversible manner between the first and second zones, also comprising a number of plate elements (1) and a number of through-passage regions of a first type (4) arranged between the plate elements (1), further comprising a number of through-passage regions of a second type (5) arranged between the plate elements (1), and additionally comprising at least two distributing devices (7, 8) which are arranged at the ends of the plate elements (1) in each case, are provided for distributing a first fluid through the through-passage regions of the first type (4) and each have a fixed hollow cylinder and a distributor insert (7a, 8a) which can be rotated in the hollow cylinder, the distributor insert (7a, 8a) having partition walls (7b, 8b) which separate off at least four separate chambers (11) in each of the cylinders, and a flow path which comprises at least one through-pa

Abstract: The invention concerns a device for compressing gaseous media comprising at least one compression chamber (10) into which the gaseous medium can enter and from which the gaseous medium can exit, and comprising a first valve device (13, 7) having at least one first opening (13) and at least one first covering device (7) that essentially covers the first opening at least intermittently. The first valve device permits the gaseous medium to enter the compression chamber (10) and prevents, in essence, the gaseous medium from exiting the compression chamber (10). The inventive device also comprises a second valve device (4, 8) having at least one second opening (4) and at least one second covering device (8) that essentially covers the second opening at least intermittently. The second valve device permits the gaseous medium to exit the compression chamber (10) and prevents, in essence, the gaseous medium from entering the compression chamber (10).

Abstract: The invention relates to a sorber heat exchanger wall comprising a fluid side (2) which is delimited by a fluid wall (4) and is impinged upon by a fluid releasing or absorbing heat, and a sorption side (5) that is provided with a sorption bed (6) with a sorbent (7) which accumulates a sorbate so as to absorb or release heat. In order to create a mechanically stable sorption wall that has good heat conducting and material conveying properties, the sorption bed (6) encompasses a highly heat conducting support structure (10,21) for the sorbent (7), which is connected to the fluid wall (4) in a heat conducting manner, and a hierarchical hollow space system.

Abstract: A device for charge-air cooling for an internal combustion engine (13) of a motor vehicle, having at least one first heat exchanger (9) for charge-air cooling with at least one first flow duct (7) for a throughflow of a first medium which is to be cooled, with at least one second flow duct (8) for a throughflow of first medium which is substantially not to be cooled, and with at least two third flow ducts (6) for a throughflow of a coolant and/or refrigerant, having at least one housing (2) for holding the at least one first heat exchanger (9), wherein at least one regulating device (4) for temperature regulation and uniform temperature mixture of the first medium after flowing through the first heat exchanger (9) is provided.

Abstract: The invention relates to a heat exchanger (1) for a charge air cooling, wherein water, in particular, condensation water in the form of droplets and/or fog is supplied and the heat exchanger (1) is provided with a hydrophobe surface in at least one partial area thereof.

Abstract: The invention relates to a heating device of a motor vehicle comprising an internal combustion engine (2) and a vehicle interior. Said heating device encompasses a cooling circuit (1) for cooling the internal combustion engine (2), a heating circuit (6) that is provided with at least one heating element (7) and is used for heating the vehicle interior, and an additional electric heater, especially an auxiliary PTC heating unit (8). According to the invention, a heat source can be connected to the cooling circuit and/or the heating circuit (6) as a second supplementary heater (9).

Abstract: The invention relates to a simplified air conditioning system (1) for a motor vehicle, comprising a flow channel (4) for an air stream (2) to be conditioned. According to the invention, said system is provided with a circuit (8) which can be operated in a cooling mode or in a heating mode and is used to circulate a fluid (F) for conditioning the air stream (2). In the heating mode, the circuit comprises an compressor (26), a heat exchanger (24), and an intermediate reservoir (28), and is controlled in such a way that the suction pressure of the compressor (26) at least partially exceeds a saturated vapour pressure in the circuit, caused by the ambient temperature.

Abstract: The invention relates to a heat exchanger, particularly for a heating or air conditioning unit of a motor vehicle, comprising several flat pipes which are arranged parallel to each other and are penetrated by a heat-transmitting medium. An electrically operated heating element (114) which is mounted once the heat exchanger has been soldered is assigned to at least one part of the flat pipes as an additional heating device. Said heating element (114) is fixed to the heat exchanger by means of a holding element (115The inventive heat exchanger is characterized by the fact that each heating element (114) is mounted in front of the corresponding flat pipe and parallel thereto by means of the holding element (125) which also runs parallel to the flat pipe.

Abstract: The invention relates to a refrigerant circuit comprising at least one heat absorption element and at least one heat dissipation element. According to the invention, heat transfer elements carrying out the same function can be operational in the refrigerant circuit at different pressure levels of the refrigerant A refrigerating system provided with the inventive refrigerant circuit is also disclosed.

Abstract: The invention relates to a heat exchanger, particularly for a heating or air conditioning unit of a motor vehicle, comprising several flat pipes which are arranged parallel to each other and are penetrated by a heat-transmitting medium. An electrically operated heating element (114) which is mounted once the heat exchanger has been soldered is assigned to at least one part of the flat pipes as an additional heating device. Said heating element (114) is fixed to the heat exchanger by means of a holding element (115). The inventive heat exchanger is characterized by the fact that each heating element (114) is mounted in front of the corresponding flat pipe and parallel thereto by means of the holding element (125) which also runs parallel to the flat pipe.

Abstract: The invention relates to an air-conditioner having a heat exchanger, such as an evaporator, for example, with a reservoir for a cold storage medium.

Abstract: An air conditioning system has a refrigerant cycle, a coolant cycle, a refrigerant/coolant heat exchanger, coupling these cycles so as to transfer heat, and a valve for operating mode-dependent control of the refrigerant flow, whereby the air conditioning system can be operated not only in air conditioning mode but also in a heat pump or reheat mode. An internal combustion engine exhaust gas/coolant heat exchanger is connected upstream in series to the refrigerant/coolant heat exchanger in the coolant cycle in the heat pump mode; and/or in the reheat operating mode the refrigerant/coolant heat exchanger functions as a condenser/gas cooler, connected upstream in series on the coolant side to the supply air/coolant heat exchanger. In addition or as an alternative, a drying operating mode can be provided for drying the supply air/refrigerant heat exchanger with reversed air conveying direction.

Abstract: The invention relates to an air-conditioner having a heat exchanger, such as an evaporator, for example, with a reservoir for a cold storage medium.

Abstract: The invention relates to an air-conditioner having a heat exchanger, such as an evaporator, for example, with a reservoir for a cold storage medium.

Abstract: An air-conditioning system is designed at least for an air-conditioning mode for cooling a thermal control medium (13) and a heat-pump mode for heating the thermal control medium. The system comprises a refrigerant circuit with a compressor (1) and an evaporator (8), a coolant circuit with a heat-generating unit (10) to be cooled and a heater (12) for heating the thermal control medium, and also a first refrigerant/coolant heat exchanger (3) functioning on the refrigerant side as a condenser/gas cooler. The evaporator is formed by a second refrigerant/coolant heat exchanger (8). A cooling body (14) for cooling the thermal control medium is connected downstream of heat exchanger (8) on the coolant side.

Abstract: The invention relates to an air-conditioner for a motor vehicle having a refrigerant circuit through which a refrigerant flows. The circuit includes a heat exchanger (1) through which the refrigerant circulates. A second internal refrigerant circuit exists in the heat exchanger (1) and operates when the first refrigerant circuit is at a standstill.

Abstract: A desorbable sorption filter, in particular for a heating or air-conditioning system of a motor vehicle, has a metallic support (12) which can be heated by flow of current and an adsorber (14) mounted at or on the support (12). To provide an improved, directly heatable sorption filter which particularly enables inexpensive production and good electrical and thermal conductive contact without the use of adhesives, it is proposed for the adsorber (14) to be of planar design and to be mechanically connected to the support (12, 112) by means of holding elements (26) formed integrally on the support (12, 112).

Abstract: In a condenser for an air-conditioning system, in particular for an air-conditioning system of a motor vehicle, there is provision for a collector (15) to be formed from a plurality of series-connected tubes (18) which extend between header tubes (10, 11) and the cross section of which is a multiple of the cross section of the flat tubes (13).

Abstract: The invention relates to an air-conditioner having a heat exchanger, such as an evaporator, for example, with a reservoir for a cold storage medium.