초록 ▼

A gas turbine engine which is used for aircraft propulsion, is provided with a pair of thrust deflecting doors which, when deployed, deflect the exhaust gases onto some path other than axially of the engine, so as to spoil the thrust. The doors are waisted in profile. To prevent some of the exhaust

A gas turbine engine which is used for aircraft propulsion, is provided with a pair of thrust deflecting doors which, when deployed, deflect the exhaust gases onto some path other than axially of the engine, so as to spoil the thrust. The doors are waisted in profile. To prevent some of the exhaust gases from missing the doors, when deployed, and thus reducing their functional efficiency, plane flaps are provided on the jet pipe, which can be moved into the gas stream when the doors are deployed. The gas stream is thus constricted and so remains within the bounds of the deployed doors.

대표청구항 ▼

A gas turbine engine having a jet pipe of the constant outlet opening type with a a thrust deflector movably connected thereto comprising: a pair of deflector doors which when inoperative are positioned opposite each other diametrically of the jet pipe and being movable through arcuate paths relativ

A gas turbine engine having a jet pipe of the constant outlet opening type with a a thrust deflector movably connected thereto comprising: a pair of deflector doors which when inoperative are positioned opposite each other diametrically of the jet pipe and being movable through arcuate paths relative to the jet pipe to further positions in which they provide said thrust deflector, said doors in said inoperative position defining a frustum of a cone and in said operative position their downstream extremities abut to define a plane which contains their pivot axis and their combined shapes providing a profile which is narrower in the middle than at its extremities; and a pair of flaps pivotally fixed to the downstream extremity of the jet pipe at positions opposite each other diametrically of the jet pipe for movement into and out of the efflux and the pivot axes of the flaps being normal to and intersecting said plane which contains the pivot axis of the deflector doors, means for normally maintaining said flaps pivoted out of the efflux and for moving said flaps into said efflux when said deflector doors are in the operative position, when moved into said efflux said flaps constricting the flow of said efflux into said deflectors.