Turbomachine with cantilevered rotor wheel for industrial power plants
AssigneeExergy International S.R.L.
InventorGabriele Mariotti
Life of this patent
Estimating the term…
Abstract
A turbomachine with a cantilevered rotor wheel for industrial power plants includes a fixed case, a main shaft mounted in the fixed case and carrying a bladed rotor wheel, a main pinion on the main shaft. A gearbox is connected to the fixed case and carries a transmission shaft configured to be connected to an operating or driving machine. A gear assembly is mounted in the gearbox, coupled to the transmission shaft and to the main pinion, to act as a speed increaser or speed reducer. A portion of the gearbox is removably connected to the fixed case and supports the gear assembly and the transmission shaft, so that the gearbox can be separated from the fixed case and the gear assembly with the transmission shaft from the main shaft.
Claims21
A turbomachine with cantilevered rotor wheel for industrial power plants, comprising:
- a fixed case;
- a main shaft mounted in the fixed case;
- support elements operatively interposed between the main shaft and the fixed case and configured to allow rotation of the main shaft in the fixed case;
- a support assembly mounted in the fixed case and comprising the support elements;
- at least one bladed rotor wheel housed in the fixed case and mounted at a first end of the main shaft so as to be supported cantilevered with respect to the support elements;
- wherein a second end of the main shaft, opposite the first end, protrudes from the fixed case;
- a main pinion on the second end of the main shaft;
- a gearbox rigidly connected to the fixed case;
- a transmission shaft rotatably mounted in the gearbox;
- a gear assembly mounted in the gearbox, coupled to the transmission shaft and coupled to the main pinion, to act as a speed increaser or speed reducer between the bladed rotor wheel and the transmission shaft;
- wherein at least one portion of the gearbox is removably connected to the fixed case;
- wherein the at least one portion supports the gear assembly and the transmission shaft, such that the at least one portion of the gearbox can be separated from the fixed case and the gear assembly with the transmission shaft can be separated from the main shaft;
- wherein the gearbox is rigidly connected to the support assembly and the support assembly is removably mounted in the fixed case;
- wherein the main shaft is connected to the bladed rotor wheel by a removable connection;
- wherein the bladed rotor wheel can be locked in the fixed case;
- wherein the main shaft is axially integral with the support assembly, so that the support assembly and the main shaft can be inserted into or withdrawn from the fixed case by displacement of at least a portion of the gearbox with respect to the fixed case and while the bladed rotor wheel remains locked in the fixed case.
Dependencies are inferred from the claim text.