United Technologies Corporation

Christopher D Jones

William M Proscia

William P Patrick

Jenny N Baarck

William Proscia

Daren Krayenvenger

A turbine engine resonator comprising a panel and a vessel. The panel is along a flow path within the engine and has an aperture. The vessel has a mounting flange secured to the panel. The flange has an aperture mated to the aperture of the panel. The vessel has a body secured to the mounting flange with an interior of the body in communication with the flange aperture. A first portion of the panel extends into the mounting flange aperture and may redirect a leakage flow, if any, to limit an effect of leakage upon resonator performance.

Turbine engine tailcone resonator

An acoustic linerincludes a remote panel, a perforated proximate paneltransversely spaced from the remote panel and one or more partitionsspanning across the space between the panels. At least one bafflecooperates with the partitions to define a resonator chamberand an associated neckfor establishing communication between the resonator chamber and a fluid stream G flowing past the proximate panel.

Architecture for an acoustic liner

A cooled acoustic liner useful in a fluid handling duct includes a resonator chamberwith a neck, a face sheet, and a coolant plenumresiding between the face sheet and the chamber. Coolant bypasses the resonator chamber, rather than flowing through it, resulting in better acoustic admittance than in liners in which coolant flows through the resonator chamber and neck. In one embodiment, the liner also includes a graze shield. Openingspenetrate both the face sheet and the shield to establish a relatively low face sheet porosity and a relatively high shield porosity. The shielded embodiment of the invention helps prevent a loss of acoustic admittance due to fluid grazing past the liner. Another embodiment that is not necessarily cooled, includes the resonator chamber, low porosity face sheet and high porosity shield, but no coolant plenum for bypassing coolant around the resonator chamber. An associated method of retrofitting an acoustic treatment into a fluid handling module includes installing openings in the module and mounting a resonator boxon the module so that the inlets to the resonator necks register with the installed openings.

High admittance acoustic liner

An acoustic linerincludes a remote panel, a proximate paneltransversely spaced from the remote panel and a resonator chamberresiding between the panels. Perforationspenetrate the proximate panel in registration with the resonator chamber. A neckwith an inletrecessed from the proximate panel establishes communication between the chamber and a fluid stream G flowing past the proximate panel. A bypass coolant passageguides coolant through the perforations without guiding it through the resonator chamber.

Growing community of inventors

Thomaston, CT, United States of America

Christopher D Jones