A thrust reverser system deployable from a core cowl is provided. The thrust reverser system may comprise one or more doors that are configured to overlap to reduce leakage and increate reverse thrust while deployed. The doors may be configured to vanes that are configured to split and/or direct airflow.

An apparatus is provided for an aircraft propulsion system. This apparatus includes a cascade structure including a thrust reverser cascade and a flow disruptor. The thrust reverser cascade extends longitudinally between a cascade forward end and a cascade aft end. The thrust reverser cascade extends laterally between a cascade first side and a cascade second side. The thrust reverser cascade extends radially between an inner face and an outer face. The thrust reverser cascade includes a plurality of vanes arranged in a longitudinally extending array along the inner face. The flow disruptor is arranged at the cascade inner face and forward of the vanes. The flow disruptor is configured to disrupt boundary layer air flowing towards the vanes.

An apparatus is provided for an aircraft propulsion system. This apparatus includes a cascade structure including a thrust reverser cascade and a flow disruptor. The thrust reverser cascade extends longitudinally between a cascade forward end and a cascade aft end. The thrust reverser cascade extends laterally between a cascade first side and a cascade second side. The thrust reverser cascade extends radially between an inner face and an outer face. The thrust reverser cascade includes a plurality of vanes arranged in a longitudinally extending array along the inner face. The flow disruptor is arranged at the cascade inner face and forward of the vanes. The flow disruptor is configured to disrupt boundary layer air flowing towards the vanes.

A multi-surface blocker door system for a thrust reverser of an aircraft is provided. The system may comprise one or more first blocker doors coupled to the inner fixed structure. The first blocker doors may be configured to obstruct a fan duct area adjacent the engine. The system may also comprise one or more second blocker doors coupled to a translating sleeve. The second blocker doors may be configured to obstruct a fan duct area adjacent to an inlet of the nacelle.

A thrust reverser included in an aircraft nacelle includes an annular nacelle, a blocker door assembly, and a cascade assembly. The annular nacelle has an inner hollowed area defining a fan duct that extends longitudinally along an axis between an upstream inlet and a downstream outlet. The blocker door assembly is disposed in the fan duct and between the upstream inlet and the downstream outlet. The blocker door assembly is configured to selectively deploy a plurality of blocker doors that extend radially from the nacelle into the fan duct so as to form a plurality of air leakage paths that define a total leakage area (A.sub.L). The cascade assembly is circumferentially disposed upstream from the blocker door assembly. The cascade assembly including a plurality of vents that define an inner circumferential area (A.sub.C2) of the cascade assembly as a ratio (R.sub.C) with respect to the A.sub.L.

A thrust reverser in an engine includes a first reverser portion configured to direct a gas in a first direction to create reverse thrust. The thrust reverser also includes a second reverser portion configured to direct the gas in a second direction that is different than the first direction. The second reverser portion is upstream or downstream from the first reverser portion.

A thrust reverser in an engine includes a first reverser portion configured to direct a gas in a first direction to create reverse thrust. The thrust reverser also includes a second reverser portion configured to direct the gas in a second direction that is different than the first direction. The second reverser portion is upstream or downstream from the first reverser portion.

A propulsion system is provided for an aircraft. This aircraft propulsion system includes an engine housing, an open propulsor rotor, an engine core and a thrust diversion system. The open propulsor rotor is outside of the engine housing. The engine core is within the engine housing and motively coupled to the open propulsor rotor. The thrust diversion system is configured with the engine housing. The thrust diversion system includes a door configured to move radially from a stowed position to a deployed position.

A propulsion system is provided for an aircraft. This aircraft propulsion system includes an engine housing, an open propulsor rotor, an engine core and a thrust diversion system. The open propulsor rotor is outside of the engine housing. The engine core is within the engine housing and motively coupled to the open propulsor rotor. The thrust diversion system is configured with the engine housing. The thrust diversion system includes a door configured to move radially from a stowed position to a deployed position.

A propulsion system is provided for an aircraft. This aircraft propulsion system includes an engine housing, an open propulsor rotor, an engine core and a thrust diversion system. The open propulsor rotor is outside of the engine housing. The engine core is within the engine housing and motively coupled to the open propulsor rotor. The thrust diversion system is configured with the engine housing. The thrust diversion system includes a door configured to move radially from a stowed position to a deployed position.