NON-AXISYMMETRIC HOUSING PROFILE FOR A GAS TURBINE ENGINE COMPRESSOR

摘要

The subject of the invention is a low-pressure turbojet compressor. The compressor comprises an annular row of blades including a first blade with an extrados surface (40), and a second blade with an intrados surface (38); and a junction surface (44) connecting the intrados surface (38) to the extrados surface, the joining surface (44) having a main boss (50) of volume VB and a main recess (52) of volume VC. These reliefs form a contour geometry also designated by the Anglo-Saxon expression "contouring 3D". The volume of the hump (50) VB is greater than four times the volume VC of the depression (52).