Guiding device of a flow machine and guide vane for such a guiding device
AssigneeMAN Diesel & Turbo SE
InventorDaniela Turzig
Life of this patent
Estimating the term…
Abstract
A guide device for a turbomachine, particularly a steam turbine, with a guide vane ring and a plurality of guide vanes which are fastened to the guide vane ring so as to be distributed along the circumference of the guide vane ring. The guide vane ring has a groove, and the guide vanes also have grooves which are aligned with the groove of the guide vane ring in the assembled state. The guide vanes are fixed in their radial position at the guide vane ring by means of a retaining ring which engages in the groove of the guide vane ring and in the grooves of the guide vanes.
Claims21
A guide device for a turbomachine, comprising:
- a guide vane ring having a groove;
- a plurality of guide vanes, each of the plural guide vanes having a groove, the plural guide vanes fastened to the guide vane ring and distributed along a circumference of the guide vane ring, wherein the guide vane grooves are aligned with the guide vane ring groove;
- and
- a retaining ring engaged in each of the guide vane grooves and the guide vane ring groove, the retaining ring fixing each of the plural guide vanes in a radial position on the guide vane ring.
A method for producing guide device for a turbomachine, the guide device comprising:
- a guide vane ring having a groove;
- a plurality of guide vanes, each of the plural guide vanes having a groove, the plural guide vanes fastened to the guide vane ring and distributed along a circumference of the guide vane ring, wherein the guide vane grooves are aligned with the guide vane ring groove;
- and
- a retaining ring engaged in each of the guide vane grooves and the guide vane ring groove, the retaining ring fixing each of the plural guide vanes in a radial position on the guide vane ring, wherein the method comprises:
- at least one turning and milling the groove in the guide vane ring;
- and
- at least one of shaping grooves in the each of the plural guide vanes, milling grooves in the each of the plural guide vanes, milling the grooves of each of the plural guide vanes prior to fitting the guide vanes to the guide vane ring, and turning the grooves of each of the plural guide vanes prior to fitting the guide vanes to the guide vane ring.
Dependencies are inferred from the claim text.