MULTI-STAGE COMPRESSOR Russian patent published in 2003 - IPC

FIELD: gas-turbine engines and anti- icing systems. SUBSTANCE: compressor has perforated radial partition mounted in cavity of inlet strut. Radial partition divides cavity of inlet strut in exhaust and distributing manifolds. Side walls of exhaust manifold have outlet holes. Inlet of distributing manifold is communicated with outlet of dispensing manifold. Trailing edges of inlet hollow struts are movably connected with leading edges of variable- incidence blades in pairs forming inlet guide devices. Streamlined surfaces of each pair form single aerodynamic profile at feathered pitch of variable-incidence blades. Ratio of areas of outlet holes found in partition ranges from 5 to 15. Outlet holes are directed towards compressor outlet. Center lines of passages form angle of 15-60 deg together with longitudinal axis of compressor. Inlet fairing is provided with double walls which form cavity communicated with air passage of compressor and with distributing manifold through jets. EFFECT: enhanced economical efficiency and reliability of compressor. 4 cl, 3 dwg