Turbine comprising at least two hollow 3d wheels nested inside one another

Abstract

Firstly, the turbines direct the fluid tangentially through channels provided around a stationary hollow wheel and the jets are received in buckets in a rotating wheel surrounding the stationary wheel, operating on the Pelton wheel principle. This novel method can be used to construct turbine assemblies that can recover energy from moving fluids, like wind turbines and marine turbines, using a minimum capture surface and obtaining a maximum yield.

1 . A turbine including at least two hollow 3D wheels nested inside one another, characterized on the one hand in that a stationary hollow wheel (A) is open at the front to the entry of the fluid at its largest diameter and is made up of curved successive circular washers (B), the inner diameter of each of which decreases from the front toward the center and the inner edge of each of which is oriented toward the front, and are interlaced by blades that are preferably wound in a spiral (C) that go from the front toward the center and form, with the washers, channels oriented tangentially toward the periphery of the wheel, and on the other hand at least one rotating wheel (D) that surrounds the stationary wheel and is made up of blades preferably wound in a spiral that go from the large diameter toward the center and are curved in the form of hollow buckets, one of the spouts of which is oriented tangentially (E) to the inside of that wheel and said bucket blades are interlaced with circular washers (F) that go from the inside toward the outside and partition the buckets, and the inner edges of said washers are at best in continuity with the washers of the stationary wheel (G). 
     
     
         2 . The turbine including at least two hollow 3D wheels nested inside one another according to  claim 1 , characterized in that the stationary wheel is provided, at the inside in its center, with a circular shield whereof the tip is oriented upward (H). 
     
     
         3 . The turbine including at least two hollow 3D wheels nested inside one another according to  claim 1 , characterized in that the turbines are contained in an outer enclosure that covers the wheels, and it is secured in the front with the stationary wheel and the surface of the opening of the enclosure is smaller in the front (I) than that situated toward the rear of the moving wheel (J). 
     
     
         4 . The turbine including at least two hollow 3D wheels nested inside one another according to  claim 1 , characterized in that the rotating wheel is kept at the center by a bearing (K) supported by the inside of the stationary wheel and by radial supports (L) that join the stationary enclosure that surrounds the assembly. 
     
     
         5 . The turbine including at least two hollow 3D wheels nested inside one another according to  claim 1 , characterized in that the large diameter of the blades of the stationary wheel is secured with the small diameter of the stationary enclosure by a ring (M) extended in front that increases from diameter to funnel and joins and combines with the projection of the upper edge of the enclosure. 
     
     
         6 . The turbine including at least two hollow 3D wheels nested inside one another according to  claim 1 , characterized in that the profile of the surfaces swept by the wheels inside and outside tends to be semi-spherical or ogival (N). 
     
     
         7 . The turbine including at least two hollow 3D wheels nested inside one another according to  claim 1 , characterized on the one hand in that in front of the stationary wheel, a grate (O) is placed whereof the meshes have a section smaller than that of the channels, and on the other hand, that filter is kept at the center by the tip of the shield. 
     
     
         8 . The turbine including at least two hollow 3D wheels nested inside one another according to  claim 1 , characterized in that at its large diameter, the shield is followed by the last small washer of the stationary wheel (P). 
     
     
         9 . The turbine including at least two hollow 3D wheels nested inside one another according to  claim 1 , characterized in that the stationary enclosure is provided with fastening tabs below it.