Abstract: In a method for monitoring the correspondence of a beer sample with a reference beer, at least 15 reference beer samples of the reference beer are brewed with the same ingredients and the same process parameters. Measurement signals for the absorption spectrum of the reference beer samples are captured and a principal component analysis is carried out for the measurement signals, in which at least 15 principal components are ascertained. A factor loading PR(i,j) is respectively determined for each principal component for the individual reference beer samples and a reference value (I) is ascertained, where i denotes the reference beer sample and j denotes the principal component, ?R(j) refers to the mean value of all factor loadings of the j-th principal component and ?P(j) refers to the standard deviation of these factor loadings.

Abstract: In a method for monitoring the correspondence of a beer sample with a reference beer, at least 15 reference beer samples of the reference beer are brewed with the same ingredients and the same process parameters. Measurement signals for the absorption spectrum of the reference beer samples are captured and a principal component analysis is carried out for the measurement signals, in which at least 15 principal components are ascertained. A factor loading PR(i,j) is respectively determined for each principal component for the individual reference beer samples and a reference value (I) is ascertained, where i denotes the reference beer sample and j denotes the principal component, ?R(j) refers to the mean value of all factor loadings of the j-th principal component and ?P(j) refers to the standard deviation of these factor loadings.

Abstract: With a connecting apparatus for connecting a shielded line with a housing the line can be electrically contacted in the housing interior. The connecting apparatus comprises at least one crimp sleeve through the sleeve hollow of which at least one conductor of the line is guidably arrangeable up into the housing interior. A conductor shielding of the line can be fixed at a free end section by means of crimping relative to the crimp sleeve and is in a shielded contact with the housing. According to the invention the corresponding conductor shielding is connected with the housing in an easy manner so as to achieve a corresponding shielded contact between the housing and the conductor shielding. The conductor shielding and the housing as a whole may hence be regarded as a shielding. A good electrical and electronic freedom from interference is obtained for corresponding devices inside the housing as well as for the corresponding connecting apparatus with respect to the environment, see EMC.

Abstract: With a connecting apparatus for connecting a shielded line with a housing the line can be electrically contacted in the housing interior. The connecting apparatus comprises at least one crimp sleeve through the sleeve hollow of which at least one conductor of the line is guidably arrangeable up into the housing interior. A conductor shielding of the line can be fixed at a free end section by means of crimping relative to the crimp sleeve and is in a shielded contact with the housing. According to the invention the corresponding conductor shielding is connected with the housing in an easy manner so as to achieve a corresponding shielded contact between the housing and the conductor shielding. The conductor shielding and the housing as a whole may hence be regarded as a shielding. A good electrical and electronic freedom from interference is obtained for corresponding devices inside the housing as well as for the corresponding connecting apparatus with respect to the environment, see EMC.

Abstract: A method and a system for the preparation of compressed air having a heat exchanger (system heat exchanger) which is in communication with a pressure source on the inlet side on the compressed air side and which is in communication with a system or unit on the outlet side on the compressed air side which is to be supplied with cooled compressed air and including at least one heat exchanger (air conditioning system heat exchanger) which is in communication with a pressure source on the inlet side on the compressed air side and which is in communication with additional components of an aircraft air conditioning system on the outlet side on the compressed air side.

Abstract: The present invention relates to an air-conditioning system, in particular an air-conditioning system for the air-conditioning of a passenger cabin of an airplane, having at least one heat exchanger arranged in a stagnation air passage for the cooling of compressed air and having at least one first shaft device and one second shaft device, with the heat exchanger including at least one first heat exchanger unit and one second heat exchanger unit separate from it on the compressed air side, which are arranged in the common stagnation air passage and of which a respective one is in communication on the compressed air side with a respective one of the shaft devices, with the shaft devices having compressors which are in respective communication on the outlet side with the inlet of the heat exchanger units on the compressed air side. The compressors are acted on by stagnation air or environmental air on the inlet side and are driven by means of one or more motors.

Abstract: The present invention relates to a system for the preparation of air in an aircraft comprising a compressor charged with air on the inlet side, comprising a supply air heat exchanger which is downstream of the compressor, is charged with air compressed in the compressor on the pressurized air side on the inlet side and which is in communication on the pressurized air side on the outlet side with a system or unit which is to be supplied with pressurized air, and comprising a turbine which is charged on the inlet side with pressurized air from a pressurized air supply separate from the air supply of the compressor and is in communication on the outlet side with the low pressure side inlet of the supply air heat exchanger and which is in communication with the compressor such that the compressor can be driven by means of the turbine. The invention furthermore relates to a method for the preparation of air in an aircraft.

Abstract: The present invention relates to a system for the preparation of air in an aircraft comprising a compressor charged with air on the inlet side, comprising a supply air heat exchanger which is downstream of the compressor, is charged with air compressed in the compressor on the pressurized air side on the inlet side and which is in communication on the pressurized air side on the outlet side with a system or unit which is to be supplied with pressurized air, and comprising a turbine which is charged on the inlet side with pressurized air from a pressurized air supply separate from the air supply of the compressor and is in communication on the outlet side with the low pressure side inlet of the supply air heat exchanger and which is in communication with the compressor such that the compressor can be driven by means of the turbine. The invention furthermore relates to a method for the preparation of air in an aircraft.

Abstract: The present invention relates to a condenser for an air-based climate control system, having an inlet and an outlet for the air to be cooled, an inlet and an outlet for the cool air, a heat exchange unit for heat transfer between the air to be cooled and the cool air, a bypass that circumvents the cool-air side of the heat exchange unit at least within a certain area, and a hot-air inlet on the cool-air side by means of which hot air can be fed into the condenser. A particularly low humidity even in partial power operation with continued high flow-through capacity of the climate control system is achieved according to the invention in that the hot-air inlet is positioned in such a way that the hot air essentially flows in a partial area of the inlet on the cool-air side of the condenser and that the bypass inlet is positioned in the partial area downstream from the hot-air inlet.

Abstract: The present invention relates to a system for dehumidification in air conditioners comprising an expansion stage, a condenser and comprising a water separator disposed upstream of the expansion stage. A dehumidification system with reduced system construction volume, reduced weight and increased reliability and improved system efficiency at lower cost is formed in accordance with the invention in that the condenser is formed by a heat exchanger (RAM heat exchanger) cooled with ambient air or stagnation air or with another fluid, with the exception of process air, to which the compressed air to be dehumidified is fed on the compressed air side.

Abstract: The present invention relates to an air-conditioning system, in particular for the air conditioning of an airplane cabin, comprising at least two air-conditioning plants which are in communication in each case on the inlet side with a supply line and on the outlet side with a cabin to be air conditioned or with a mixing chamber, with the supply line on the inlet side having at least one flow regulating valve in each case for the purpose of regulating the flow. A high redundancy with low losses in performance and with optimum costs and weight is achieved in that downstream of the flow regulating valves at least one connection line is provided which connects the supply lines on the inlet side or the air-conditioning plants on the pressurized air side to one another and which is provided with a valve, by means of which the connection line can be opened or closed in dependence on the valve position.

Abstract: The following invention relates to an air conditioning system, in particular for aircraft, comprising at least one heat exchanger, arranged in a ram air duct, for cooling compressed air by means of a fluid, and comprising at least a first and a second air cycle machine which at the compressed-air end are connected to the heat exchanger. A particularly compact, reliable, redundant and economical arrangement is achieved in that the heat exchanger comprises at least one first heat exchanger unit and a second heat exchanger unit, of which one each is connected at the compressed-air end to one of the air cycle machines, and in that ram air outlet ducts which are fluidically separate from each other are provided, of which one is connected to the first heat exchanger unit and another is connected to the second heat exchanger unit.

Abstract: The invention relates to a system for the preparation of compressed air having a heat exchanger (system heat exchanger) which is in communication with a pressure source on the inlet side on the compressed air side and which is in communication with a system or unit on the outlet side on the compressed air side which is to be supplied with cooled compressed air and comprising at least one heat exchanger (air conditioning system heat exchanger) which is in communication with a pressure source on the inlet side on the compressed air side and which is in communication with further components of an aircraft air conditioning system on the outlet side on the compressed air side.

Abstract: The present invention relates to an air-conditioning system, in particular an air-conditioning system for the air-conditioning of a passenger cabin of an airplane, having at least one heat exchanger arranged in a stagnation air passage for the cooling of compressed air and having at least one first shaft device and one second shaft device, with the heat exchanger including at least one first heat exchanger unit and one second heat exchanger unit separate from it on the compressed air side, which are arranged in the common stagnation air passage and of which a respective one is in communication on the compressed air side with a respective one of the shaft devices, with the shaft devices having compressors which are in respective communication on the outlet side with the inlet of the heat exchanger units on the compressed air side. The compressors are acted on by stagnation air or environmental air on the inlet side and are driven by means of one or more motors.

Abstract: The present invention further relates to an air-based climate control system, especially for aircraft, having at least one turbine for decompression and cooling of the air to be fed into the passenger cabin and having a condenser with a heat exchange unit, the inlet on the cool-air side of which is connected with the turbine outlet, and having an admixture conduit by means of which hot air can be mixed into the air to be fed into the passenger cabin, with the admixture conduit feeding in downstream of the inlet on the cool-air side of the heat exchange unit.

Abstract: The present invention relates to an air conditioning system for the air conditioning of a space, in particular for the air conditioning of an aeroplane cabin, comprising a heat exchanger for the cooling of a compressed air flow (tapped air flow) originating from an engine or an auxiliary unit and comprising at least one expansion device per air cycle machine (ACM) for the expansion and cooling of compressed air, wherein the expansion devices are disposed after the heat exchanger and are in connection on the outlet side with a mixing chamber or the space to be air conditioned.

Abstract: The present invention relates to an air-conditioning system, in particular for the air conditioning of an airplane cabin, comprising at least two air-conditioning plants which are in communication in each case on the inlet side with a supply line and on the outlet side with a cabin to be air conditioned or with a mixing chamber, with the supply line on the inlet side having at least one flow regulating valve in each case for the purpose of regulating the flow. A high redundancy with low losses in performance and with optimum costs and weight is achieved in that downstream of the flow regulating valves at least one connection line is provided which connects the supply lines on the inlet side or the air-conditioning plants on the pressurized air side to one another and which is provided with a valve, by means of which the connection line can be opened or closed in dependence on the valve position.

Abstract: The invention relates to a ram air duct for an aeroplane air conditioning system having an inlet channel which can be closed by an inlet valve and in which at least one heat exchanger is arranged, having a blower arranged in a blower chamber and an outlet passage closable by an outlet valve. In accordance with the invention, the outlet passage is divided into two separately extending passages of which one is guided as a blower outlet passage up to the blower into the blower chamber and the other is designed as a bypass passage. The outlet valve only closes the bypass passage in the closed state.

Abstract: The present invention relates to a system for dehumidification in air conditioners comprising an expansion stage, a condenser and comprising a water separator disposed upstream of the expansion stage. A dehumidification system with reduced system construction volume, reduced weight and increased reliability and improved system efficiency at lower cost is formed in accordance with the invention in that the condenser is formed by a heat exchanger (RAM heat exchanger) cooled with ambient air or stagnation air or with another fluid, with the exception of process air, to which the compressed air to be dehumidified is fed on the compressed air side.

Abstract: The following invention relates to an air conditioning system, in particular for aircraft, comprising at least one heat exchanger, arranged in a ram air duct, for cooling compressed air by means of a fluid, and comprising at least a first and a second air cycle machine which at the compressed-air end are connected to the heat exchanger. A particularly compact, reliable, redundant and economical arrangement is achieved in that the heat exchanger comprises at least one first heat exchanger unit and a second heat exchanger unit, of which one each is connected at the compressed-air end to one of the air cycle machines, and in that ram air outlet ducts which are fluidically separate from each other are provided, of which one is connected to the first heat exchanger unit and another is connected to the second heat exchanger unit.