Abstract: A motor vehicle including a water provision unit for providing water to at least one water consumer. Here, a water collection tank, a primary water tank and at least one secondary water tank are provided. The water collection tank is or can be fluidically connected to a water source and the primary water tank, bypassing the water collection tank and the secondary water tank, is fluidically connected to the at least one water consumer. The water collection tank is fluidically connected both directly and indirectly via the at least one secondary water tank to the primary water tank, and the water provision unit includes a water conveying unit which is provided and designed for conveying the water out of the water collection tank in direction of the primary water tank by a gaseous conveying medium.

Abstract: A motor vehicle including a water provision unit for providing water to at least one water consumer. Here, a water collection tank, a primary water tank and at least one secondary water tank are provided. The water collection tank is or can be fluidically connected to a water source and the primary water tank, bypassing the water collection tank and the secondary water tank, is fluidically connected to the at least one water consumer. The water collection tank is fluidically connected both directly and indirectly via the at least one secondary water tank to the primary water tank, and the water provision unit includes a water conveying unit which is provided and designed for conveying the water out of the water collection tank in direction of the primary water tank by a gaseous conveying medium.

Abstract: A container assembly for a vehicle, having a container which is arranged in a closed cavity of a vehicle body structure, and methods for producing a vehicle body structure having such a container assembly for a vehicle. At least one mechanical interface having a container-side first attachment part and a vehicle-side second attachment part is provided, which is embodied both for fastening the container on the vehicle body structure and also for filling and/or emptying the container.

Abstract: The following circuit is proposed for discharge lamps having a particularly high starting voltage. An a.c. voltage generator (1) provides a corresponding a.c. voltage. A starting voltage generating device, which comprises a piezo transformer (2), is connected to the a.c. voltage generator (1) and can be connected at its output to a discharge lamp (4), generates a starting voltage from the a.c. voltage. The starting voltage generating device in this case comprises at least one diode (3) which is connected in parallel with the output of the starting voltage generating device. A zero-order pump circuit is thus integrated in the starting circuit. Advantageous here is the use of higher-order pump circuits.

Abstract: The following circuit is proposed for discharge lamps having a particularly high starting voltage. An a.c. voltage generator (1) provides a corresponding a.c. voltage. A starting voltage generating device, which comprises a piezo transformer (2), is connected to the a.c. voltage generator (1) and can be connected at its output to a discharge lamp (4), generates a starting voltage from the a.c. voltage. The starting voltage generating device in this case comprises at least one diode (3) which is connected in parallel with the output of the starting voltage generating device. A zero-order pump circuit is thus integrated in the starting circuit. Advantageous here is the use of higher-order pump circuits.

Abstract: In a piezoelectric acoustic alarm piezoelements (2a, 2b) each excited by a square-wave voltage are arranged opposite each other in a resonance cavity (1) and each oscillate in opposing directions. The two square-wave voltages (Va, Vb) controlled by a microprocessor (8) are phase displaced by a square-wave pulse length and are positive or negative. A piezo-sound source designed and excited in this way is characterised by a high sound volume with low current consumption and small size.

Abstract: Piezoelectric transformer with an input and an output region. Input and/or output regions are sub-divided into sections (13-16) of inverse polarization. Depending on the number of sections, a multiplication of the transformation ratio is achieved without increasing the field strength in the piezoelectric material.