A stator assembly includes a stator frame structure having an outer annular frame with an outer edge running around a center axis; a plurality of stator segments mounted at the outer edge along a circumferential direction of the outer edge, each stator segment comprising at least one electric coil; and a wiring arrangement electrically connecting the stator segments with an electric power interface. The wiring arrangement comprises a plurality of wiring assemblies, each wiring assembly electrically connecting one of the plurality of stator segments with the power interface is provided. Each wiring assembly is routed along and next to the outer annular frame and comprises electric cables connected in between the electric interface and the respective stator segment, wherein the electric cables are provided with electric insulation structures each surrounding one of the electric cables. Further described is an electric generator and a wind turbine with such a stator assembly.

An electric machine having a tangential architecture comprising a rotor, rotating about an axis of rotation, a stator, coaxial to the rotor with respect to said axis of rotation, the stator comprising a casing which at least partially incorporates the rotor, a power supply body which incorporates means of control for the actuation, the power supply and the control of the electric machine, the power supply body being placed outside the stator and parallel to the axis of rotation in a position substantially tangent to the casing of the stator, the control means comprising a power module to power the electric machine. Advantageously, the power module is provided with a main heat sink, suitable to dissipate the thermal power emitted by the power module itself, and the power module is thermally insulated from the remaining control means.

An electric machine having a tangential architecture comprising a rotor, rotating about an axis of rotation, a stator, coaxial to the rotor with respect to said axis of rotation, the stator comprising a casing which at least partially incorporates the rotor, a power supply body which incorporates means of control for the actuation, the power supply and the control of the electric machine, the power supply body being placed outside the stator and parallel to the axis of rotation in a position substantially tangent to the casing of the stator, the control means comprising a power module to power the electric machine. Advantageously, the power module is provided with a main heat sink, suitable to dissipate the thermal power emitted by the power module itself, and the power module is thermally insulated from the remaining control means.

A motor drive device that closes a mounting hole for mounting a fan unit by way of a fan fixing member is provided with a structure that can effectively improve operability for maintenance. A bar serving as a regulating member of a motor drive device has a first projecting piece that is formed so as to curve downwards after extending in the horizontal direction from a top part thereof, and a second projecting piece that projects downwards from a bottom part thereof, and by the first projecting piece being placed in an upper insertion part and the second projecting piece being placed in a lower insertion part, a fan unit is fixed in a mounting hole of a flange.

The AT WILL 7 POWER Fuelless Generator operates starting with a small or large rechargeable 12 v battery or batteries, dc to ac inverter or inverters, or ac to dc converter or converters, or dc to ac inverter and ac to dc converter or nether dc to ac inverter or ac to dc converter, dc electric motor, a/c or d/c electric motor or motors, alternator or alternators, generator head or generator heads, tapered cone generator or tapered cone generators, generator or generators; 12 volt radiator fan or radiator fans, belt and pulley system, tension pulley or tension pulleys or nether, and a few other components to make it a high efficiency long lasting fuelless electric generator. The noise level on this generator is very low and the weight is lighter then most generators on the market right now. Because of it's zero pollution it can operate indoors continuously with out generating a lot of heat. This is a stand alone system and has no support from wind, or sun. This generator comes in different sizes, voltages and watts for homes and commercial use.

The AT WILL 7 POWER Fuelless Generator operates starting with a small or large rechargeable 12 v battery or batteries, dc to ac inverter or inverters, or ac to dc converter or converters, or dc to ac inverter and ac to dc converter or nether dc to ac inverter or ac to dc converter, dc electric motor, a/c or d/c electric motor or motors, alternator or alternators, generator head or generator heads, tapered cone generator or tapered cone generators, generator or generators; 12 volt radiator fan or radiator fans, belt and pulley system, tension pulley or tension pulleys or nether, and a few other components to make it a high efficiency long lasting fuelless electric generator. The noise level on this generator is very low and the weight is lighter then most generators on the market right now. Because of it's zero pollution it can operate indoors continuously with out generating a lot of heat. This is a stand alone system and has no support from wind, or sun. This generator comes in different sizes, voltages and watts for homes and commercial use.

A vacuum system having a condenser and a root vacuum pump set includes an independent inlet condenser set having an inlet end for receiving vapor inputted from an output of an air cooling power generator condenser of a generator; air in the vapor being condensed, and the surplus air is outputted; a root vacuum pump set including a plurality of root vacuum pumps; the root vacuum pump set further including an input end and an output end; the input end being connected to the independent inlet condenser set; air outputted from the independent inlet condenser set being inputted to the plurality of root vacuum pump for compression and then the compressed air being outputted from the output end; and a backing pump connected to the output end of the root vacuum pump set by using an output pipe; the backing pump serving to receive air outputted from the root vacuum pump set.

A vacuum system having a condenser and a root vacuum pump set includes an independent inlet condenser set having an inlet end for receiving vapor inputted from an output of an air cooling power generator condenser of a generator; air in the vapor being condensed, and the surplus air is outputted; a root vacuum pump set including a plurality of root vacuum pumps; the root vacuum pump set further including an input end and an output end; the input end being connected to the independent inlet condenser set; air outputted from the independent inlet condenser set being inputted to the plurality of root vacuum pump for compression and then the compressed air being outputted from the output end; and a backing pump connected to the output end of the root vacuum pump set by using an output pipe; the backing pump serving to receive air outputted from the root vacuum pump set.

Devices, systems, and methods to air cool a portable generator are disclosed. The devices include various air ducts to direct airflow over heated components within a cabinet of the portable generator to cool the components by convection. A damping fan draws ambient temperature air into the cabinet and directs the air into channels of an outflow duct.

Devices, systems, and methods to air cool a portable generator are disclosed. The devices include various air ducts to direct airflow over heated components within a cabinet of the portable generator to cool the components by convection. A damping fan draws ambient temperature air into the cabinet and directs the air into channels of an outflow duct.