US 12,258,872 B2Granted

Rotor containment structure

AssigneeHamilton Sundstrand Corporation

InventorsViktor Kilchyk, Christopher Simpson

Life of this patent

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Abstract

A containment structure for a rotor includes a shroud and a shroud reinforcement. The shroud is coaxial with and partially surrounds the rotor and includes a tubular section, a transition section, and a flange section. The tubular section extends axially past a first side of the rotor. The transition section connects to the tubular section and is adjacent to a curved side of the rotor. The flange section connects to the transition section opposite the tubular section. The flange section extends radially past a radially outer side of the rotor. The shroud reinforcement is connected to a radially outer surface of the transition section. The shroud reinforcement encloses the transition section and includes a support scaffold and a reinforcing material. The support scaffold includes a series of geometric retaining features encircling a radially outer surface of the transition section. The reinforcing material couples to the support scaffold and restricts shroud radial expansion.

Claims15

Dependent claims

A rotor containment structure for a rotor, the rotor containment structure comprising:

a shroud coaxial with and partially surrounding the rotor, the shroud comprising:
a tubular section extending axially past a first side of the rotor;
a transition section connected to the tubular section and adjacent to a curved side of the rotor;
and
a flange section connected to the transition section opposite the tubular section and extending radially past a radially outer side of the rotor;
and
a shroud reinforcement enclosing the transition section of the shroud, the shroud reinforcement comprising:
a support scaffold comprised of a series of geometric retaining features encircling a radially outer surface of the transition section, wherein the geometric retaining features are spaced axially along the shroud;
and
a reinforcing material coupled to the support scaffold to restrict radial expansion of the shroud,
wherein the reinforcing material is between the geometric retaining features of the support scaffold, and
wherein the geometric retaining features extend from parallel to an axis of the shaft, and wrap around the shroud reinforcement into a perpendicular orientation relative to the axis of the shaft, and the reinforcing material extend from parallel to an axis of the shaft, and wrap around the shroud reinforcement into a perpendicular orientation relative to the axis of the shaft.

9 more elements

A rotary machine comprising:

a compressor section comprising:
a compressor housing with a compressor inlet, a compressor outlet, and a compressor duct between the compressor inlet and the compressor outlet;
a compressor rotor in the compressor duct;
a diffuser in the compressor duct downstream from the compressor rotor;
and
a compressor shroud connected to the compressor housing near the compressor inlet and the diffuser, wherein the compressor shroud is coaxial with the compressor rotor;
a turbine section connected to the compressor section comprising:
a turbine housing with a turbine inlet, a turbine outlet, and a turbine duct between the turbine inlet and the turbine outlet;
a turbine rotor in the turbine duct;
a turbine shroud coaxial with and partially surrounding the turbine rotor, wherein the turbine shroud is connected to the turbine housing;
a turbine nozzle on a downstream portion of the turbine shroud;
and
a turbine shroud reinforcement encircling a section of the turbine shroud, the turbine shroud reinforcement comprising:
a first support scaffold partially enclosing the turbine shroud comprised of a series of geometric retaining features encircling a radially outer surface of a transition section, wherein the geometric retaining features are spaced axially along the shroud;
and
a first reinforcing material coupled to the first support scaffold to restrict radial expansion of the turbine shroud, wherein the reinforcing material is between the geometric retaining features of the support scaffold;
and
a shaft mechanically connecting the compressor rotor and the turbine rotor, wherein the geometric retaining features extend from parallel to an axis of the shaft, and wrap around the turbine shroud reinforcement into a perpendicular orientation relative to the axis of the shaft, and the reinforcing material extend from parallel to an axis of the shaft, and wrap around the turbine shroud reinforcement into a perpendicular orientation relative to the axis of the shaft.

15 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/503,824Filed 7 Nov 2023 · division
Priority: 28 Jan 2022
Published: US 2024/0068379 A129 Feb 2024
Granted: 25 Mar 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification28 codes

F01D 21/045
Responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position: special…
F04D 29/023
Selection of particular materials: especially adapted for elastic fluid pumps
B22F 5/009
Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product: of turbine components other than…
B33Y 80/00
Products made by additive manufacturing

Family

Application17/587,883Parent of this division · filed 28 Jan 2022
US 2024/0068379 A1Pre-grant publication · published 29 Feb 2024
US 11,846,199 B2Parent of this division
US 2023/0243274 A1Published application
US 12,258,872 B2This patent

From the US filing history. Foreign family members aren’t listed.