초록 ▼

A seal plate rests along the edge of a moveable flap surface and extends outwardly therefrom into contact with a stationary wall to seal the gap between the flap edge and the wall. The seal plate is hinged for rotation to one end of a pivotable support link which is hinged at its other end to the fl

A seal plate rests along the edge of a moveable flap surface and extends outwardly therefrom into contact with a stationary wall to seal the gap between the flap edge and the wall. The seal plate is hinged for rotation to one end of a pivotable support link which is hinged at its other end to the flap. The gas pressure load on the seal plate presses it against the flap surface and also tends to rotate the support link to press the outward edge of the seal plate against the stationary wall.

대표청구항 ▼

An exhaust nozzle flap assembly, said flap assembly being rotatable about a first axis and comprising: a stationary wall surface; flap means including a flap member having a front surface defining a portion of a gas flow path, said flap member having an edge extending in a first direction adjacent s

An exhaust nozzle flap assembly, said flap assembly being rotatable about a first axis and comprising: a stationary wall surface; flap means including a flap member having a front surface defining a portion of a gas flow path, said flap member having an edge extending in a first direction adjacent said stationary wall surface, said front surface terminating at said edge; and seal means for minimizing leakage of gases from the gas flow path between said edge of said flap member and said stationary wall surface, said seal means including a seal plate and seal support means for connecting said seal plate to said flap member, said support means being pivotally secured to said flap means along a second axis extending substantially in said first direction, said seal plate having a first seal plate surface in sealing contact with said front surface of said flap member substantially along a line parallel to said second axis, said seal plate being moveable relative to said front surface, said seal plate also having means defining a second seal plate surface extending substantially parallel to said second axis and spaced outwardly of said flap member edge in sealing contact with said stationary wall surface, said seal plate being pivotally secured to said support means along a third axis parallel to and spaced from said second axis, said third axis being located with respect to said second axis such that a gas pressure load on said seal plate perpendicular to said front surface of said flap member creates a moment on said support means about said second axis and a moment on said seal plate about said third axis which moments tend to simultaneously urge said first seal plate surface against said front surface of said flap member and to urge said second seal plate surface against said stationary wall surface during nozzle operation.