Patent ID: 6148608
Filing Date: 2000-11-21
Classification: F02K,F05D,Y02T

Abstract:
A divergent petal arrangement for convergent-divergent nozzles for application in aircraft engines wherein a gas passes through the interior of said convergent-divergent nozzles, said divergent petal arrangement comprising:a plurality of master divergent petals being linked to a convergent section and each of said master divergent petals including a base and being further linked to a compression strut and a plurality of slave divergent petals;each of said slave divergent petals including a plurality of hangers and being movably mounted between two of said master divergent petals by each of said hangers movably interacting with one of said two master divergent petals; andeach of said slave divergent petals including a bent open cross-section with a concave side facing said gas and two relatively flat wings and each of said relatively flat wings being inclined at an angle to approximately match the angle of said base of said neighboring master divergent petal to which said relatively flat wing is connected, gas pressure acting on the bent open cross section of the slave petals to provide the means for centering the slave divergent petals with respect to the master divergent petals with an absence of a separate mechanical centralizing mechanism for governing the orientation of each of said slave divergent petals with respect to said neighboring master slave divergent petals.