Abstract: An apparatus for simulating the acoustic performance of an automotive vehicle, the apparatus comprising: a processor configured to select an electrical input to be provided to the amplifier in dependence on one or more driving conditions for the vehicle, the electrical input indicating a desired acoustic output for a vehicle and being selected from a plurality of prestored electrical inputs; an amplifier configured to receive the electrical input from the processor and to generate amplified electrical signals of the acoustic output from the electrical input; a transducer configured to generate acoustic vibrations from electrical signals received from the amplifier; and a structural panel configured for placement on the body of the vehicle, wherein the transducer is mounted to the panel such that acoustic vibrations generated by the transducer are emitted from the panel to an environment within or surrounding the vehicle.

Abstract: A sound bypass device configured to transmit engine-generated sound pulses from an engine to a sound outlet whilst preventing flow of gases to the sound outlet, the sound bypass device comprising: an input tube configured to conduct the engine-generated sound pulses from the engine; and a sound transmission device connected to the input tube at a first end and to the sound outlet at a second end, the sound transmission device comprising: a first volume connected to the first end, a second volume connected to the second end, and a flexible diaphragm separating the first volume from the second volume and configured to transfer variations in pressure in the first volume to the second volume; wherein the first volume has a cross-sectional area that is greater at the diaphragm than at the first end and the second volume has a cross-sectional area that is greater at the diaphragm than at the second end.

Abstract: The disclosure relates to an electrical connector comprising a plug element with a longitudinal axis, said plug element having a plug housing with a circular cross-section and a coupling ring arrangement mounted rotatably about the longitudinal axis, wherein at least one guide lug which projects radially inward is arranged on the inner circumferential face of the coupling ring arrangement, and a socket element with a longitudinal axis, said socket element having a socket housing with a circular cross-section for accommodating the plug housing, wherein, on the outer circumferential face of the socket housing, at least one spiral-shaped guide groove is disposed for receiving the at least one guide lug of the coupling ring arrangement, and wherein, at the end of the at least one guide groove, an end position for the at least one guide lug of the coupling ring arrangement is disposed.

Abstract: The disclosure relates to an electrical connector comprising a plug element with a longitudinal axis, said plug element having a plug housing with a circular cross-section and a coupling ring arrangement mounted rotatably about the longitudinal axis, wherein at least one guide lug which projects radially inward is arranged on the inner circumferential face of the coupling ring arrangement, and a socket element with a longitudinal axis, said socket element having a socket housing with a circular cross-section for accommodating the plug housing, wherein, on the outer circumferential face of the socket housing, at least one spiral-shaped guide groove is disposed for receiving the at least one guide lug of the coupling ring arrangement, and wherein, at the end of the at least one guide groove, an end position for the at least one guide lug of the coupling ring arrangement is disposed.

Abstract: A device (10) for supplying electrical power and signals to a submersible pump (15) in such a way that it is sealed from liquids via an external electrical cable (11) extending through a opening (49) within the head (48) of a pump housing (50). The device comprises a plug connector device (10), whose pump-side plug connector part (13) is arranged within the through opening (49) of the housing head (48) so as to be axially movable and whose cable-side plug connector part (12) is provided with an insulation coating (25), which extends from an area of the cable jacket (20) down to its plug connector contacts (17), and about which, behind its free end, a coupling part (27) is provided which can be connected in a mechanically fixed manner to a counterpart coupling part (54) on the exterior end of the through opening (49) within the head (48) of the pump housing (50).