TURBINE MACHINE TURBINE SUPPORT Russian patent published in 2020 - IPC F02C7/20 

FIELD: engine building.

SUBSTANCE: invention relates to turbo and aeroengineering, namely to turbine support devices. Support of turbine of turbine machine includes external housing, internal housing with bearing, nozzle blades, radial spokes with adjusting nuts connecting external and internal housings. Radial spokes pass through nozzle blades and can be fixed on external housing. Elastic elements are installed on radial spokes in cavity of internal housing between its shell and adjusting nut of corresponding radial spokes. Support is equipped with outer, intermediate and inner sleeves, each of which has hole in bottom under radial pin, and intermediate sleeve is equipped with annular ledge at the bottom. Sleeves are installed so that the outer sleeve rests with its bottom against the shell of the internal housing of the turbine support, and the inner sleeve is pressed by the adjusting nut from the bottom side. Adjacent sleeves form telescopic joints bounded by end gaps between adjacent sleeves, wherein between two adjacent sleeves there is at least one pair of resilient elements. Pair of elastic elements represents a pair of plate springs arranged mirror-like to each other and in contact with each other and corresponding sleeves in the direction of the axis of the radial pin. In the shell of the inner housing there is a groove for an outer sleeve. Between the adjusting nut and the inner sleeve there is an additional washer and / or a retaining element. Elastic elements of different stiffness are installed between outer and intermediate and between intermediate and inner sleeves.

EFFECT: invention makes it possible to exclude the possibility of excessive binding of resilient elements with possibility to control tension of spokes by the moment of tightening of the adjusting nut on the key during assembly, and also to increase ease of assembly and reliability of the assembly and turbomachine as a whole.

5 cl, 2 dwg