Hybrid Tesla-Pelton Wheel Disc Turbine

Abstract

Utility Model Patent for a hybrid turbine that consists in a Tesla turbine improved with the replacement partial or total of its smooth discs by innovative discs called ‘Pelton type discs ( 2 )’. The parts of the Tesla turbine are: stator, shaft, inlet, exhaust outlet ( 4 ) and smooth discs ( 2 ). The disc ( 2 ) with an innovative format, object of this patent, owns the characteristics of the Pelton Wheel, once it owns cavities ( 1 ) that are hit by the working fluid. The ‘Pelton type’ discs ( 2 ) have as purpose to increase the torque provided by the shaft of the turbine and it is an improvement of the Tesla turbine that makes it useful for many applications and improve its efficiency in applications which demands bigger torque that furnished by the original Tesla turbine. The proportion between ‘Pelton type’ discs ( 2 ) and smooth discs, used in the turbine, defines the increase of torque. The Hybrid Tesla-Pelton Wheel can be used like a pump, compressor or vacuum pump if operates in reverse way, that means, the working fluid goes into the openings near the centre ( 3 ) of the discs ( 2 ) and goes out at the ends of the discs ( 2 ) (effect that is obtained turning the shaft by a motor).

1 ) “Hybrid Tesla-Pelton Wheel Turbine”: it joints together in the same turbine the principle of working of the Tesla turbine, witch is run by the phenomenon of adherence of the working fluid to the surface of the discs and the principle of working of the Pelton Wheel , which is run by the transfer of cinematic energy from the fluid to the blades by hitting the cavities of the blades. The Hybrid turbine is characterized by the replacement of part or all the discs of the Tesla turbine by innovative discs with the characteristics of the Pelton Wheel, allowing to joint together the two principles in the same turbine, thus resulting in an improvement of the Tesla turbine, because it increases the torque, thus improving its efficiency in application that demands bigger torque than that furnished by the original Tesla turbine, and becoming viable its. The proportion between “Pelton type” discs and smooth discs, used in the turbine, defines the increase of torque. 
     
     
         2 ) Discs with the principle of working similar to the Pelton Wheel according to the request 1 characterized by owing cavities that are compressed by the working fluid, generating impulsion in the disc, like in the Wheel. The “Pelton type” disc consists of a side that has cavities and by another smooth. By jointing together the side of the disc with has cavities with the smooth side of another disc, the cavities become ducts by where flows the working fluid. The geometry and dimensions of the cavity and the number of cavities are any. Its possible, for example, to have a elliptical geometry, a circular one, a spiral one or any other geometry, since it provides the impulsion effect on the cavity. 
     
     
         3 ) Utilization of the Hybrid Tesla-Pelton Wheel Turbine, according to the request 1, in applications like “Hybrid Tesla-Pelton Wheel” Pump or Compressor characterized by the use of “Hybrid Tesla-Pelton Wheel” turbine in the reverse way, that means, by the admission of the fluid through the openings near the centre of the discs and by the exhaustion through the end of the discs. The pumping (or compression) is obtained by turning the shaft and occurs due to the sum of the two effects, i.e. the effect of adherence of the fluid to the surfaces of the discs (together with centrifugal forces, like in the Tesla Pump or Compressor) and the effect of transferring the cinematic energy from the disk to the working fluid, caused by the movement of the cavities that pushes the fluid. The spin of the shaft can be obtained by any motor or even a Tesla turbine