TURBOMACHINE GAS EXHAUST DEVICE Russian patent published in 2000 - IPC

FIELD: gas exhaust devices. SUBSTANCE: turbomachine gas exhaust device is provided with circular diffuser including axial and radial parts formed by inner and outer walls, respectively. Outer wall of radial part is made in form of arc of circle. Ratio of radius R of arc of circle to width H of circular clearance at outlet of axial part of diffuser is equal to 0.4-1.1; ΔH/R∠1, where ΔH is difference between magnitudes of width of circular clearances at outlets of radial and axial parts of diffuser. Ratio of areas of inlet and outlet sections of axial part of diffuser ranges from 1.5 to 2.0. EFFECT: reduced losses. 2 dwg