	US 12,480,425 B2
	Rotor containment structure
Mark R. Gurvich, Middletown, CT (US); Viktor Kilchyk, Lancaster, NY (US); and Christopher Simpson, West Hartford, CT (US)
Assigned to HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Jan. 26, 2024, as Appl. No. 18/424,084.
Prior Publication US 2025/0243784 A1, Jul. 31, 2025
Int. Cl. F01D 25/24 (2006.01)

CPC F01D 25/24 (2013.01) [F05D 2240/14 (2013.01); F05D 2300/603 (2013.01)]

20 Claims

6. A rotor assembly, comprising:

a shroud, which is formed of one or more of metallic and alloy materials, the shroud being coaxial with and partially surrounding a rotor and comprising tubular and flange sections and a transition section axially interposed between the tubular and flange sections; and

shroud reinforcement comprising:

first fiber-reinforced polymer-matrix composite reinforcement elements extending along an axial dimension of the rotor and being disposed to reinforce the transition section; and

second fiber-reinforced polymer-matrix composite reinforcement elements extending along a circumferential dimension of the rotor and being disposed to reinforce the transition section,

wherein the first fiber-reinforced polymer-matrix composite reinforcement elements extend along a full axial length of the transition section and do not overlap with one another.

14. A method of assembling a shroud for a rotor assembly, the method comprising:

forming a shroud, which is formed of one or more of metallic and alloy materials, to be coaxial with and partially surround a rotor and comprising tubular and flange sections and a transition section axially interposed between the tubular and flange sections; and

forming a shroud reinforcement,

the forming of the shroud reinforcement comprising:

arranging first fiber-reinforced polymer-matrix composite reinforcement elements to extend along an axial dimension of the rotor and to be disposed to reinforce the transition section; and

arranging second fiber-reinforced polymer-matrix composite reinforcement elements to extend along a circumferential dimension of the rotor and to be disposed to reinforce the transition section,

wherein the arranging of the first fiber-reinforced polymer-matrix composite reinforcement elements is executed such that the first fiber-reinforced polymer-matrix composite reinforcement elements abut with an external surface of the transition section.