Adjustment valve with energy recovery

Abstract

A control valve ( 1 ) comprising a valve body ( 2 ) having an inlet opening ( 3 ) and an outlet opening ( 4 ) for a fluid; a obturator ( 6 ) placed within the valve body ( 2 ) between the inlet and outlet openings ( 3, 4 ); recovery means ( 5 ) configured to transfer kinetic energy and/or potential energy extracted from the fluid out of the valve body ( 2 ), the recovery means ( 5 ) comprising a rotating element ( 7 ) placed within the valve body ( 2 ) downstream of the obturator ( 6 ) and configured to be put in rotation by the fluid.

1 . A control valve ( 1 ) comprising: a valve body ( 2 ) which has an inlet opening ( 3 ) and an outlet opening ( 4 ) for a fluid; recovery means ( 5 ) configured to transfer the kinetic and/or potential energy extracted from said fluid out of said valve body ( 2 ); a obturator ( 6 ) placed within said valve body ( 2 ) between said inlet and outlet openings ( 3 ,  4 ), said obturator ( 6 ) being configured to direct the fluid towards the recovery means ( 5 ) and to assume a closing configuration of the valve ( 1 ). 
     
     
         2 - 12 . (canceled) 
     
     
         13 . The valve ( 1 ) according to  claim 1 , characterised in that said obturator ( 6 ) comprises a sliding element ( 14 ) associated with said inlet opening ( 3 ) and mobile moving away from/towards said inlet opening ( 3 ) to open it and/or close it. 
     
     
         14 . The valve ( 1 ) according to  claim 13 , characterised in that said sliding element ( 14 ) is arranged coaxially with respect to said rotating element ( 7 ). 
     
     
         15 . The valve ( 1 ) according to  claim 14 , wherein: the rotating element ( 7 ) is provided with two tubular elements ( 71 ,  72 ) each of which has radial openings ( 71   a ,  72   a ) afforded on the lateral wall of an axial conduit ( 141 ) along which the sliding element ( 14 ) is slidable; sliding along said axial conduit ( 141 ), the sliding element ( 14 ) progressively uncovers or closes the radial openings ( 71   a ,  72   a ). 
     
     
         16 - 20 . (canceled)