Transverse Flow Marine Turbine with Autonomous Stages

Abstract

The invention relates to a turbine engine including a stack of stages, each of which includes a cross-flow turbine and a generator, where each turbine-generator stage has an independent shaft, and wherein each stage is associated with an independent fairing ( 31 - 32 ) directing it with respect to a current, each fairing being of shroud type, with symmetrical profiled wings.

1 . A turbine engine comprising a stack of stages, each of which comprises a cross-flow turbine and a generator, wherein each turbine-generator stage has an independent shaft-ft and wherein each stage is associated with an independent fairing directing it with respect to a current, each fairing being of shroud type, with symmetrical profiled wings. 
     
     
         2 . The turbine engine of  claim 1 , wherein the generators of the various stages are interconnected via rectifiers. 
     
     
         3 . The turbine engine of  claim 2 , wherein the output of each rectifier is coupled to independent charge means for controlling the rotation speed of the associated generator or blocking it. 
     
     
         4 . The turbine engine of  claim 1 , wherein two adjacent stages are designed so that their turbines rotate in opposite directions. 
     
     
         5 . The turbine engine of  claim 1 , wherein each stage is coupled to the neighboring stages by controlled means setting the mutual orientation of the stages. 
     
     
         6 . The turbine engine of  claim 1 , wherein each turbine-generator-fairing stage forms an independent module stackable in situ on another module. 
     
     
         7 . The turbine engine of  claim 1 , wherein each module comprises:
 a frame comprising the two walls of a shroud-type fairing, associated with an upper plate and a lower plate,   a first housing attached to the lower plate and containing the generator, and   a third plate rotatably assembled with respect to the lower plate, under the housing, this third plate being provided with means of attachment to a lower module.   
     
     
         8 . The turbine engine of  claim 7 , wherein the attachment means comprise pins insertable into a lower module. 
     
     
         9 . The turbine engine of  claim 1 , wherein each stage comprises a couple of contra-rotating turbines, each turbine being associated with a generator contained in a housing, each turbine being separated from the other by a symmetrical profile extending downstream at least all the way to the trailing edge, each stage being separated from the neighboring stages by an upper plate and a lower plate extending from the profile all the way to the fairings. 
     
     
         10 . The turbine engine of  claim 1 , wherein the blades of each turbine are of V-shaped wing type.