Patent ID: 8381678

Claim:
A wide area atmospheric pressure plasma jet apparatus, comprising: a transmission mechanism comprising a rotation output end that has a center axis; a plasma housing having an opening, wherein the rotation output end is disposed opposite to the opening, the plasma housing further has an air-attracting hole near the rotation output end and extended from an outer wall of the plasma housing to the interior of the plasma housing; and two plasma-generating devices disposed within the plasma housing and connected with the rotation output end, wherein each of the plasma-generating devices has a plasma nozzle located at the opening, and tilts from the center axis to an angle, and when the rotation output end drives the plasma-generating devices to rotate, the plasma-generating devices rotate around the center axis at a particular angle of inclination so that two plasma beams are obliquely ejected from plasma nozzles and toward a direction away from the center axis and that the plasma processing area is increased; wherein an air outside the plasma housing is infused into the inside of the plasma housing through the air-attracting hole by a differential pressure between the inside and the outside of the plasma housing, which is generated by rotation of the plasma-generating devices and the air is discharged through the opening to the outside of the plasma housing by the rotation of the plasma-generating devices, so that the heat inside the plasma housing is dissipated by a circulation of the air.