METHOD OF LID SECURING OF CENTRIFUGAL COMPRESSOR OF TURBINE MACHINE, COMPRESSOR LID AND COMPRESSOR ASSEMBLY EQUIPPED WITH SUCH LID Russian patent published in 2015 - IPC F01D11/08 

FIELD: machine building.

SUBSTANCE: present invention is intended to ensure lid movement of centrifugal compressor such that clearance between the lid and impeller blades of the compressor will be permanent and minimum. For this the design of securing in the lid middle with the elastic deformation part is suggested. The lid has concave shell with internal surface located at distance from the compressor having impeller with blades. Securing has connecting pin in the middle of the shell and another end secured on the turbine machine enclosure. Securing contains axisymmetric diaphragm in form of the truncated cone, having lever profile connected by securing end with the crankcase using the connection with double bend - with right and blunt angles. Distance between the internal surface of the enclosure and top edges of the blades is held permanent during work with minimum clearance adjustment.

EFFECT: improved design.

9 cl, 4 dwg