Patent ID: 9447894
Filing Date: 2016-09-20
CPC Classification: F01D,F02C,F05D,F16K

Claim Text:
1. A valve assembly for a gas turbine engine, the valve assembly comprising: two flappers movable independently from one another between an open position and a closed position; and a fairing disposed between the two flappers, the fairing having first and second opposed sides, the fairing having a portion extending downstream of the two flappers when the flappers are in their open position, the portion being a downstream portion of a substantially streamlined body, the two flappers being movable relative to the fairing, and when in the open position, the two flappers are respectively nested into the first and second sides of the fairing and forming an upstream portion of the substantially streamlined body, the downstream portion of the streamline body extending in continuity downstream from the upstream portion formed by the flappers when in their open position, the fairing having an airfoil profile, and wherein a widest portion of the airfoil profile as defined between the first and second sides of the fairing is disposed downstream of a tip of the flappers relative to a fluid flow through the valve assembly.