Aircraft with one or several turbojet engines housed in the fuselage aft section in pods provided with thrust-reversing devices

Claim 1

An aircraft with at least one turbojet engine arranged in an engine fairing formed by the aft section of the fuselage or by the pod, which includes thrust-reversing means having rearwardly directed afterburner jet pipe meAns with associated thrust nozzle means, and in which several gas discharge aperture means are provided in the engine fairing with associated inner cover means and outer cover means, the inner cover means substantially closing the gas discharge aperture means in the position thereof for forward thrust conditions and opening the gas discharge aperture means in the position of thrust reversal while simultaneously deflecting the engine gases in the direction of the gas discharge aperture means, and said outer cover means being operable to open and close the gas discharge aperture means, characterized in that the thrust-reversal means is arranged within an area directly upstream of the thrust nozzle means of the afterburner jet pipe means of a respective engine, in that the inner cover means are operable to increasingly close the gas discharge out of the jet pipe means with increasing opening of the discharge aperture means by the outer cover means, the outer cover means being actuated in unison with the inner cover means with the inner cover means being inner flaps in the form of substantially triangular sectors of the afterburner pipe walls and of a heat shield associated therewith, said sectors forming a circular area substantially completely closing the afterburner jet pipe means in the fully open position of the outer cover means, and in that one guide track each, corresponding in number to the gas discharge aperture means, is provided between the engine fairing and an outer wall of the jet pipe means, a first bell-crank lever with a roller rotatably supported at one end which is axially displaceably guided in said guide track by means of the roller thereof, the other free end of the first bell-crank being provided with a further roller and being displaceably guided in a further guide track, and means for the simultaneous adjustment of the outer cover means with the inner cover means including a second bell-crank pivotally connected with one end thereof at the cranking point of the first bell-crank lever, on the one hand, and axially displaceably guided in said first-mentioned guide track by means of a roller supported at the cranking point thereof, on the other, the other free end of said second lever being pivotally connected with a sector of the jet pipe wall and heat shield forming part of the inner cover means.