TURBOCOMPRESSOR Russian patent published in 2001 - IPC

FIELD: mechanical engineering; axial-flow, direct-flow and mixed-flow compressor of gas turbine plants. SUBSTANCE: special over-rotor device is placed in housing 1 over ends of blades 2. This device has ring space 3 and ring lattice formed by curvilinear ribs and slots between ribs. Space 3 communicates with compressor blading through the lattice. Ribs can be made in form of aerodynamic profiles. Ring space 3 can be made variable in height and can be furnished with additional plates installed behind the lattice. Walls of ring space can be made curvilinear, and additional plates can be made curvilinear and shaped. Turbocompressor can be furnished with additional chamber connected to space 3. EFFECT: enlarged range of gas-dynamic stability of compressor and aeroelastic stability of its blades with preservation of efficiency level. 8 cl, 6 dwg