Multi-path cooling of a turbo-generator rotor winding
AssigneeALSTOM Technology Ltd
InventorKevin Mayor
Life of this patent
Estimating the term…
Abstract
A turbo-generator includes a rotor body and a rotor winding disposed around the rotor body. The rotor winding including a sub slot, a first axial cooling duct having a first inlet and a first outlet, and a second axial cooling duct disposed adjacent and parallel to the first axial cooling duct for multi-path cooling. The second axial cooling duct has a second inlet and a second outlet. The first inlet is disposed offset from the second inlet and the first outlet is disposed offset from the second outlet.
Claims13
A turbo-generator comprising:
- a rotor body;
- and
- a rotor winding disposed around the rotor body, the rotor winding including a sub slot, a first axial cooling duct having a first inlet and a first outlet, and a second axial cooling duct disposed adjacent and parallel to the first axial cooling duct for multi-path cooling, the second axial cooling duct having a second inlet and a second outlet, wherein the first inlet is disposed offset from the second inlet and the first outlet is disposed offset from the second outlet.
A rotor winding for multi-path cooling of a rotor in a turbo-generator, the rotor winding comprising:
- a main slot supplying a coolant;
- a sub slot disposed adjacent to the main slot;
- a first axial cooling duct having a first inlet communicating with the sub-slot and a first outlet communicating with an outer circumference of the winding;
- a second axial cooling duct disposed adjacent and parallel to the first axial cooling duct and having a second inlet communicating with the sub slot and a second outlet communicating with the outer circumference, wherein the first inlet is disposed axially offset from the second inlet and the first outlet is disposed axially offset from the second outlet.
Dependencies are inferred from the claim text.