An aircraft drive device (10) for creating propulsion and/or lift of an aircraft, the drive device comprising a rotating shaft (12), a rotating shaft bearing (14, 16), a rotating shaft drive machine (18) for rotationally driving the rotating shaft (12), and a housing (20), wherein the rotating shaft bearing (14,16) and the rotating shaft drive device (18) are arranged in an interior of the housing (44) and the rotating shaft (12) protrudes to the outside of the housing (20) through a housing opening (42) of the housing (20), wherein in the region of the housing opening (42) an overvoltage arrester device (52) is arranged which is designed for diverting an overvoltage present at the rotating shaft (12).

An aircraft drive device (10) for creating propulsion and/or lift of an aircraft, the drive device comprising a rotating shaft (12), a rotating shaft bearing (14, 16), a rotating shaft drive machine (18) for rotationally driving the rotating shaft (12), and a housing (20), wherein the rotating shaft bearing (14,16) and the rotating shaft drive device (18) are arranged in an interior of the housing (44) and the rotating shaft (12) protrudes to the outside of the housing (20) through a housing opening (42) of the housing (20), wherein in the region of the housing opening (42) an overvoltage arrester device (52) is arranged which is designed for diverting an overvoltage present at the rotating shaft (12).

An aircraft drive device (10) for creating propulsion and/or lift of an aircraft, the drive device comprising a rotating shaft (12), a rotating shaft bearing (14, 16), a rotating shaft drive machine (18) for rotationally driving the rotating shaft (12), and a housing (20), wherein the rotating shaft bearing (14,16) and the rotating shaft drive device (18) are arranged in an interior of the housing (44) and the rotating shaft (12) protrudes to the outside of the housing (20) through a housing opening (42) of the housing (20), wherein in the region of the housing opening (42) an overvoltage arrester device (52) is arranged which is designed for diverting an overvoltage present at the rotating shaft (12).

A rotary spark gap that operates as a high-speed, high-voltage switch includes a rotor assembly having a plurality of rotors and a plurality of insulating spacers mounted on a rotatable rotor shaft with the rotors spaced and separated by the insulating spacers in an axial direction. Each rotor has a plurality of rotor points on the periphery and spaced apart around the outer circumference of the rotor. The rotor points electrically couple with a pair of bar electrodes disposed on opposite sides of the rotors. Each bar electrode is in heat conducting relation with a thermally-conductive heat to dissipate heat from the plasma generated by the arcing between the rotor points and the bar electrode. The rotary spark gap is configured for use with a Tesla coil in a Pulsed Electromechanical Field (PEMF) therapy system or device.

A rotary spark gap that operates as a high-speed, high-voltage switch includes a rotor assembly having a plurality of rotors and a plurality of insulating spacers mounted on a rotatable rotor shaft with the rotors spaced and separated by the insulating spacers in an axial direction. Each rotor has a plurality of rotor points on the periphery and spaced apart around the outer circumference of the rotor. The rotor points electrically couple with a pair of bar electrodes disposed on opposite sides of the rotors. Each bar electrode is in heat conducting relation with a thermally-conductive heat to dissipate heat from the plasma generated by the arcing between the rotor points and the bar electrode. The rotary spark gap is configured for use with a Tesla coil in a Pulsed Electromechanical Field (PEMF) therapy system or device.

A rotary spark gap that operates as a high-speed, high-voltage switch includes a rotor assembly having a plurality of rotors and a plurality of insulating spacers mounted on a rotatable rotor shaft with the rotors spaced and separated by the insulating spacers in an axial direction. Each rotor has a plurality of rotor points on the periphery and spaced apart around the outer circumference of the rotor. The rotor points electrically couple with a pair of bar electrodes disposed on opposite sides of the rotors. Each bar electrode is in heat conducting relation with a thermally-conductive heat to dissipate heat from the plasma generated by the arcing between the rotor points and the bar electrode. The rotary spark gap is configured for use with a Tesla coil in a Pulsed Electromechanical Field (PEMF) therapy system or device.

A rotary spark gap that operates as a high-speed, high-voltage switch includes a rotor assembly having a plurality of rotors and a plurality of insulating spacers mounted on a rotatable rotor shaft with the rotors spaced and separated by the insulating spacers in an axial direction. Each rotor has a plurality of rotor points on the periphery and spaced apart around the outer circumference of the rotor. The rotor points electrically couple with a pair of bar electrodes disposed on opposite sides of the rotors. Each bar electrode is in heat conducting relation with a thermally-conductive heat to dissipate heat from the plasma generated by the arcing between the rotor points and the bar electrode. The rotary spark gap is configured for use with a Tesla coil in a Pulsed Electromechanical Field (PEMF) therapy system or device.