COMPRESSOR (VERSIONS) AND INSERT FOR COMPRESSOR HOUSING (VERSIONS) Russian patent published in 2007 - IPC F04D27/02 

FIELD: mechanical engineering; compressors.

SUBSTANCE: invention is designed for compressor with housing whose inner mainly cylindrical space forms main channel to pass gas, rotor with at least one row of blades, at least one row of stator blades and antistall device made in housing. Antistall device is made in form of ring packet into which gas with low quantity of motion gets from ends of rotor blades during operation of compressor. Said gas passes through pocket and returns into main channel to pass gas in point arranged at a distance from point in which gas gets into pocket. Ring pocket accommodates great number of curvilinear guide vanes which form ring inlet channel arranged after vanes and/or ring outlet channel arranged higher in direction of gas flow Guide vanes radially inwards the housing in direction of free ends located in open hole of pocket or near the pocket and form in said ring pocket a row of curvilinear intervene channels located near ring inlet channel and/or ring outlet channel.

EFFECT: enlarged range of aerodynamically stable operating conditions of compressor without reduction of its efficiency.

34 cl