Biconical shaped inlet duct for e.g. radial flow turbocompressor, has divergent section following convergent section to form assembly in normal flow direction of gas and having coning angle slightly higher than that of convergent section

摘要

The duct (10) has a divergent section (10D) immediately following a convergent section (10C) to form an assembly, in a normal flow direction of gas during utilization of the assembly. A coning angle (alphaD) of the divergent section is of 20 degree and is slightly higher than a coning angle (alphaC) of the convergent section. The coning angle of the convergent section is of 15 degree and is equal to that of an inlet (12E) of a compressor (12). The convergent section has an inlet diameter equal to an outlet diameter of the divergent section.