Bypass air valve for a gas turbine

Year	Description
1995	Invention patented by Derk S. Philippona on June 29th, 1995. Abstract: A bypass air valve is provided comprising a liner, a strap, and apparatus for selectively actuating the valve. The liner includes an inner surface, an outer surface, a plurality of first regions, and a plurality of second regions. Each first region includes a plurality of first apertures. The strap includes a plurality of openings and a plurality of third regions. The third regions include a plurality of second apertures. The valve may be selectively actuated into an open position where the first regions are in communication with the openings, and the third regions are in communication with the second regions. The valve may be selectively actuated into a closed position where the first regions are in communication with the third regions, and the second regions are in communication with the openings. The flow path through the first and second apertures in the closed position impedes flow substantially more than the flow path through the first apertures and the openings in the open position, thereby effectively closing bypass air flow through the valve in the closed position.
Source: selected by the editor from original sources.

Invention: Bypass air valve for a gas turbine