Circumferentially varying fan casing treatments for reducing fan noise effects
US12092034B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2022 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Oct 3, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/96
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary component for a gas turbine engine includes a plurality of rotor blades operably coupled to a rotating shaft extending along the central axis and an outer casing arranged exterior to the plurality of rotor blades in a radial direction of the gas turbine engine. The outer casing defines a gap between a blade tip of each of the plurality of rotor blades and the outer casing. The outer casing includes a plurality of features formed into an interior surface thereof. Each of the plurality of features includes one or more design parameters that are perturbed about a mean design parameter for stall performance so as to provide a circumferential variation in wake strengths associated with the plurality of rotor blades, thereby reducing operational noise of the gas turbine engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.