valve for controlling large durchflu00fcsse, particularly for compressors

摘要

Valve for the control of large-section flows with high operating frequency, and in particular for compressors or the like, comprising a flow aperture (102; 106) and a closure device (3; 8), said flow aperture comprising one or more orifices (102; 106) formed on a fixed body (2; 6) cooperating with said closure device (3; 8) and introduced into the flow channel (1), said closure device (3; 8) rotating with respect to an axis perpendicular to the plane on which said fixed body (2; 6) lies, and being equipped with driving means (5); said closure device (3; 8) is equipped with at least a hollow (123; 138) on the surface facing said fixed body (2; 6) which houses an insert (113; 118), said insert being formed so as to be substantially complementary with said orifice (102; 106) of said fixed body (2; 6).