Abstract: A pressure supply system for a fresh water system is provided. The pressure supply system includes a water reservoir having a bleed air inlet and a water outlet. The pressure supply system also includes a water pump so as to load water, which is loaded with bleed air pressure, with a further pressure downstream until a predetermined nominal operating pressure range is achieved. As a result, the pressure supply system provides an increased redundancy by pressure generator assemblies which are based on different pressure generation principles.

Abstract: A combined toilet grey water system for passenger transportation vehicles such as aircrafts includes a toilet bowl for receiving waste water and a basin for receiving grey water. Moreover, the system includes a flushing line and a flushing valve with an inlet and an outlet. The outlet of the flushing valve is connectable to a vacuum waste water system. The inlet of the flushing valve is connected via the flushing line to the toilet bowl. Therein, the basin is connected to the flushing line in such a way that the basin is connectable to the vacuum waste water system.

Abstract: A draining device for draining a fluid line is provided. The draining device comprises a mechanically non-locking coupling and a holding device. The mechanically non-locking coupling is configured to establish a fluid conductive connection with the fluid line. The holding device is configured to stationary fix the mechanically non-locking coupling relatively to the fluid line. The draining device allows establishing a fluid conductive connection between the fluid line and the mechanically non-locking coupling without requiring a mechanical fixation directly at the mechanically non-locking coupling.

Abstract: A water disinfection system includes a water disinfection device, having a UV light generator for the UV treatment of water, and a water pipe, having a first pipe portion and a second pipe portion and a third pipe portion which branches off between the first and the second pipe portion. The water disinfection device includes a first water connection and a second water connection. The first water connection is connected to the first pipe portion. The second water connection is connectable to a water reservoir which is to be provided. The second pipe portion is connectable to a water source which is to be attached. The third pipe portion is connectable to a tap for water, so as to be able in this way to provide an improvement in the water quality.

Abstract: A water disinfection system includes a water disinfection device, having a UV light generator for the UV treatment of water, and a water pipe, having a first pipe portion and a second pipe portion and a third pipe portion which branches off between the first and the second pipe portion. The water disinfection device includes a first water connection and a second water connection. The first water connection is connected to the first pipe portion. The second water connection is connectable to a water reservoir which is to be provided. The second pipe portion is connectable to a water source which is to be attached. The third pipe portion is connectable to a tap for water, so as to be able in this way to provide an improvement in the water quality.

Abstract: A pressure supply system for a fresh water system is provided. The pressure supply system includes a water reservoir having a bleed air inlet and a water outlet. The pressure supply system also includes a water pump so as to load water, which is loaded with bleed air pressure, with a further pressure downstream until a predetermined nominal operating pressure range is achieved. As a result, the pressure supply system provides an increased redundancy by pressure generator assemblies which are based on different pressure generation principles.

Abstract: A water supply system includes a first pipe, a water reservoir, and a Venturi pipe having a first Venturi nozzle terminal, a second Venturi nozzle terminal and a Venturi nozzle branch arranged between the first and second Venturi nozzle terminal. The first Venturi nozzle terminal is connected via the first pipe to the water reservoir. The first Venturi nozzle terminal is connectable to a second pipe to fill the water reservoir. The branch of the Venturi pipe is connectable to a third pipe to supply taps. Water flows through the Venturi pipe from the first Venturi nozzle terminal to the second Venturi nozzle terminal when the water reservoir is filled, and water flows through the Venturi pipe from the second Venturi nozzle terminal to the Venturi nozzle branch during the supply procedure, to provide a water supply system which requires less maintenance and is less temperamental.

Abstract: A combined toilet grey water system for passenger transportation vehicles such as aircrafts includes a toilet bowl for receiving waste water and a basin for receiving grey water. Moreover, the system includes a flushing line and a flushing valve with an inlet and an outlet. The outlet of the flushing valve is connectable to a vacuum waste water system. The inlet of the flushing valve is connected via the flushing line to the toilet bowl. Therein, the basin is connected to the flushing line in such a way that the basin is connectable to the vacuum waste water system.

Abstract: A thermally optimised circulation fluid system is proposed which comprises a circulation line, a circulation pump unit and a control unit. The circulation pump unit and the circulation line together form a circulation circuit. The circulation pump unit is configured for transferring an amount of thermal energy directly or indirectly to a fluid located in the circulation line. The control unit is configured for adjusting the amount of thermal energy which is transferrable to the fluid.