Aircraft gas turbine thrust-reversing device

摘要

An aircraft gas turbine thrust-reversing device has an engine cowling, the rear area of which is displaceable in the axial direction of the engine from a closed forward thrust position into a rearwardly displaced thrust reversal position, resulting in an essentially annular space to a front and stationary area of the engine cowling. The rear area of the engine cowling is coupled to deflecting elements and blocker doors, which in the forward thrust position are arranged completely inside the front area of the engine cowling. A drive element is provided between the front area and the rear area, which effects the axial displacement of the rear area. The drive element is a two-stage drive element, effecting in a first stage an axial displacement by an axial partial displacement path, and in a second stage an axial displacement by the full axial displacement path.

主权项

1. A thrust reversing device for an aircraft gas turbine engine:
wherein the gas turbine engine includes an engine cowling, a core engine cowling and a bypass duct positioned between the engine cowling and the core engine cowling; wherein the engine cowling includes a stationary front area and a displaceable rear area which is displaceable in an axial direction of the engine from a closed forward thrust position into a rearwardly displaced thrust reversal position, resulting in an essentially annular space in the front area; the thrust reversing device comprising:at least one blocker door movable between a forward thrust first position and a thrust reversing second position at least partially blocking the bypass duct;
at least one drive element for moving the at least one blocker door between the first position and the second position; at least one connecting element connecting the at least one blocker door to the engine, the at least one connecting element including at least one elongated body and first and second articulated mounts positioned along the elongated body with the first articulated mount connected to the at least one blocker door and the second articulated mount connected to the engine; the at least one blocker door, the at least one drive element and the at least one connecting element positioned inside of the front area and outside of the bypass duct and does not form a portion of the bypass duct when the at least one blocker door is in the first position, the at least one drive element being provided between the front area and the rear area, and connected to the rear area for axially displacing the rear area, the drive element being a two-stage drive element including a first stage and a second stage, and effecting in the first stage a partial axial displacement of the rear area on an axial partial displacement path, and in the second stage a full axial displacement of the rear area on a full axial displacement path.