HIGH-SPEED TURBOMACHINE Russian patent published in 2003 - IPC

FIELD: cryogenic engineering, compressor facilities. SUBSTANCE: proposed high-speed turbomachine contains shaft with turbine stage furnished with bearing unit and thin-walled shell installed with clearance relative to bearing unit. Thin-walled shell is hermetically connected with all working members of bearing unit by means of flexible members and is made detachable. Bearing unit is installed for playing part of housing carrying stator part of turbomachine. Thin-walled shell is installed with clearance relative to guide vane assembly of turbine stage and is additionally hermetically connected with all stationary members of turbine stage by means of flexible members. Rotor and bearing unit connected with base of turbine stage varying guide-vane assembly and cover cheek are made in form of detachable module. High-speed turbomachine can be furnished with second turbine stage. Both stages are cantilever-mounted on shaft and are made in form of gas expansion machine with braking device in form compressor. Shell is installed with clearance relative to guide-vane assemblies of gas expansion machine and compressor and is additionally hermetically connected with all stationary member of gas expansion machine and compressor stage by means of flexible members. Invention eliminates temperature and force stresses in members of turbomachine stator part. EFFECT: possibility of replacement of turbomachine module without changing process, reduced weight and overall dimensions. 9 cl, 7 dwg