초록 ▼

A thrust reverser blocker door assembly for a fanjet engine (34) wherein a plurality of blocker doors (10) are disposed aerodynamically about a peripheral circumferential zone of a central fan duct (46) of the engine in a cruise configuration and are pivoted radially into an annular ring interruptin

A thrust reverser blocker door assembly for a fanjet engine (34) wherein a plurality of blocker doors (10) are disposed aerodynamically about a peripheral circumferential zone of a central fan duct (46) of the engine in a cruise configuration and are pivoted radially into an annular ring interrupting the fan duct in a thrust reversing configuration for diverting air radially outward and forward through a concentric bypass duct (48), each of the blocker doors (10) being secured for pivotal displacement by an articulated linkage (50) comprising a drag link (62) disposed for arcuate motion about a fixed pivot point (64) at its proximal end, an overcenter link (12) spanning the blocker door (10) and the distal end of the drag link (62) at a longitudinally translatable pivot point (70), and a biasing member (100) for tensioning the articulated linkage (50) and the blocker door (10) radially outward about the translatable pivot point (70) when in the cruise configuration.

대표청구항 ▼

A thrust reverser blocker door assembly for a fanjet engine wherein a plurality of blocker doors are disposed aerodynamically about a peripheral circumferential zone of a central fan duct of the engine in a cruise configuration and are pivoted radially inward into an annular ring interrupting said f

A thrust reverser blocker door assembly for a fanjet engine wherein a plurality of blocker doors are disposed aerodynamically about a peripheral circumferential zone of a central fan duct of the engine in a cruise configuration and are pivoted radially inward into an annular ring interrupting said fan duct in a thrust reversing configuration for diverting air radially outward and forward through a cencentric bypass duct, each of said blocker doors being secured for pivotal displacement by an articulated linkage comprising a drag link disposed for arcuate motion about a fixed pivot point at its proximal end, an overcenter link pivotally spanning said blocker door and the distal end of said drag link at a longitudinally translatable pivot point, and biasing means for tensioning said articulated linkage and biasing said blocker door radially outward about said translatable pivot point when in said cruise configuration, said blocker door being comprised of a panel having a slot formed therein, said overcenter link being disposed within said slot about axle means generally normal to the action of said articulated linkage, said biasing means being a spring means bridging said panel and said overcenter link, said overcenter link being a generally “H”-shaped link having a first throat receiving said drag link and a second throat receiving boss means on said blocker door, said spring means being a torsion spring means enveloping said axle means on either side of said second throat and bridging said overcenter link in torsional engagement therewith.