An apparatus for stall suppression of a compressor by porous material

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a stall suppression device using a porous body for delaying a stall or surge phenomenon generated in a compressor by injecting compressed air into a compressor rotor for compressing air introduced from an inlet of the compressor, , And a porous body. The casing guides the flow of air introduced into the compressor and has a spray hole formed through the wall adjacent the leading edge of the compressor rotor. The porous body is inserted into the injection hole so as to coincide with the inner wall surface of the wall. According to the present invention configured as described above, the compressed air supplied from the outside of the casing is injected toward the leading edge portion through the porous body, whereby the occurrence of stall is suppressed.