United Technologies Corporation

Todd M Currier

Brian P Cigal

Keven G Van Duyn

Kevin G Van Duyn

A piezo-actuated valve, system, and method of exciting gas turbine turbomachinery are provided. The piezo-actuated valve includes a valve body extending along a first axis between a first and second end, the valve body defining a first opening near the first end, a second opening near the second end, a third opening centrally located on the valve body, and a valve cavity between the first opening and the second opening, a tube connected to the third opening and extending from the valve body along a second axis transverse to the first axis, a shuttle valve assembly slidably disposed within the valve body, wherein the shuttle valve slides between the first end to a first stopper and the second end to a second stopper, a first piezo injector having an injector tip extending through the first opening, and a second piezo injector having an injector tip extending through the second opening.

Piezo actuated high speed air valve used for blade and component excitation

A gear system for a gas turbine engine includes a carrier that includes a first axial face. A plurality of gears are located in the carrier. An opening in the first axial face of the carrier is aligned with one of the plurality of gears. A housing includes a central cavity and is attached to the first axial face of the carrier. The housing includes an energy dissipating member.

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Enfield, CT, United States of America

Todd M Currier