TURBINE GUIDE VANES Russian patent published in 2024 - IPC F01D9/04 

FIELD: machine building.

SUBSTANCE: turbine guide vanes (10) includes: a plurality of guide vanes (11), wherein each guide vane comprises first shroud (17) and second shroud (18) made on radial ends of blade (14) of corresponding guide vane (11) and located opposite each other; first holder (12) of guide vanes (11), wherein each guide vane (11) is attached or connected by means of protrusion (17a) of corresponding first shroud (17) to first holder (12); second holder (13) of guide vanes (11), wherein each guide vane (11) is attached or connected by means of projection (18a) of the corresponding second shroud (18) to second holder (13). Projection (17a) of first shroud (17) of corresponding guide vane (11) is inserted into groove (19) of first holder (12) in radial direction, and is also fixed and connected in said groove (19) by means of pin (20) passing in axial direction through protrusion (17a) of first shroud (17), having radial mobility in this groove (19). Projection (18a) of second shroud (19) of corresponding guide vane (11) is fixed and connected in circumferential direction and in radial direction by means of pin (21) passing in axial direction into projection (18a) of second shroud (18) and second holder (13).

EFFECT: improved attachment or coupling of guide vanes or guide vane segments of guide vanes with holders of guide vanes and sealing of connection between guide vanes or guide vane segments of guide vanes and holders of turbine guide vanes.

8 cl, 9 dwg