PIEZO ACTUATED HIGH SPEED AIR VALVE USED FOR BLADE AND COMPONENT EXCITATION

摘要

A piezo-actuated valve (200), system, and method of exciting gas turbine turbomachinery are provided. The piezo-actuated valve includes a valve body (220) extending along a first axis (A-B) between a first (A) and second end (B), 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 (216) connected to the third opening and extending from the valve body, a shuttle valve assembly (210) slidably disposed within the valve body, wherein the shuttle valve slides between the first end to a first stopper (214A) and the second end to a second stopper (214B), and a first and second piezo injectors (222A and 222B respectively) having an injector tip extending through the first and second openings respectively.