OPENTECHNICAL PUBLICATION OT-2026-000000210 Double bellows valve for preventing undesired valve failure positions Published: 2026-09-15T19:02:36.828653Z Permanent URL: https://opentechnical.org/p/OT-2026-000000210 Categories: Industrial Motion & Power Transmission > Fluid Power ------------------------------------------------------------------------ ABSTRACT A gas turbine engine includes a combustor and a valve coupled to the combustor. The valve includes a valve body, a valve stem, and an actuator. The valve body is formed to define an air chamber. The valve stem is movable between a closed position and an open position. The actuator is configured to move selectively the valve stem between the closed position and the open position. ------------------------------------------------------------------------ OpenTechnical publication OT-2026-000000210 Published 2026-09-15T19:02:36.828653Z https://opentechnical.org/p/OT-2026-000000210