EXTERNAL CASING FOR AXIAL FLOW COMPRESSOR OR AXIAL FLOW TURBINE OF JET ENGINE

摘要

The casing comprises at least one integral unit formed from an inner ring 5 fixedly connected to an outer ring 3 by means of radially-extending connecting webs 2 forming circumferentially-spaced air chambers 4 therebetween, wherein each web 2 has a radial gap 1 opening at the radially-inner surface of the inner ring 5, such that, in use, the gap between the casing and a rotor therein is kept constant and as small as possible. IMAGE