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US 10,865,646 B2Granted
Turbine assembly with auxiliary wheel
AssigneeROLLS-ROYCE plc
InventorsBrandon R. Snyder, Michael R. Whitten, James E. Sellhorn, Bradford John Riehle
Life of this patent
Estimating the term…
Abstract
Various embodiments of the present application provide one or more of: (1) auxiliary wheel that (a) enables accurate speed detection of a turbine disc and/or (b) presents a machining surface for balance correction; and/or (2) techniques for mounting an auxiliary wheel to a rotor, such as a turbine disc.
Claims20
A disc and wheel assembly comprising:
- (a) a disc comprising:
- a mount with a circumferential and radially outwardly facing first mounting surface,
- a plurality of radially outwardly extending mounting pins spaced about a circumference of the first mounting surface;
- (b) an auxiliary wheel comprising:
- a circumferential radially inward facing second mounting surface defining a plurality of mounting slots arranged about a circumference of the second mounting surface, wherein the mounting slots extend through a radial thickness of the auxiliary wheel from the second mounting surface to a circumferential radially outward facing surface of the auxiliary wheel, each of the mounting slots comprising an open and axially extending entry portion and a closed and circumferentially extending retaining portion;
- wherein each of the mounting pins is disposed in one of the mounting slots and extends radially in the one of the mounting slots through the radial thickness of the auxiliary wheel.
3 more elements
A method of making a disc and wheel assembly,
- (a) wherein the disc comprises:
- a mount with a circumferential and radially outwardly facing first mounting surface,
- a plurality of radially outwardly extending mounting pins spaced about a circumference of the first mounting surface;
- (b) wherein the auxiliary wheel comprises:
- a circumferential radially inward facing second mounting surface defining a plurality of mounting slots arranged about a circumference of the second mounting surface, wherein the mounting slots extend through a radial thickness of the auxiliary wheel from the radially inward facing second mounting surface to a circumferential radially outward facing surface of the auxiliary wheel, each of the mounting slots comprising an open and axially extending entry portion and a closed and circumferentially extending retaining portion;
- the method comprising:
- disposing each of the mounting pins in one of the mounting slots such that each of the mounting pins extends radially in the one of the mounting slots through the radial thickness of the auxiliary wheel.
4 more elements
A disc and wheel assembly comprising:
- (a) a disc comprising:
- a mount with a circumferential first mounting surface,
- (b) an auxiliary wheel comprising:
- a circumferential second mounting surface
- wherein one of the disc and the auxiliary wheel comprise a plurality of radially outwardly facing mounting pins and the other of the disc and the auxiliary wheel defines a plurality of mounting slots, wherein the mounting slots extend through a radial thickness of the auxiliary wheel from the radially inward facing second mounting surface to a circumferential radially outward facing surface of the auxiliary wheel;
- each of the mounting pins being disposed in one of the mounting slots such that each of the mounting pins extends radially in the one of the mounting slots through the radial thickness of the auxiliary wheel.
3 more elements
Dependencies are inferred from the claim text.