A dual-flow turbine engine equipped with a thrust reversal system and a device for restricting the annular channel for the ejection of cold gases.

摘要

The invention concerns a dual-flow turbine engine equipped with a thrust reversal system having rear swing doors (6) and at least one device for restricting the annular channel for the ejection of cold gases during thrust reversal. According to the invention, each restriction device, consisting of a fitting (7) in the outer wall (2) of the annular chanel and a shutter (8) pivoting with respect to the fitting and has sealing means disposed between theses two last two, each fitting (7) having, in communication with each chamber, at least one orifice leading to the low pressure region outside wall (2). Furthermore, elastic means are arranged so as to act on the shutter (8) in such a way as to produce an initial release of the latter. These devices aim to guarantee the holding of the shutter (8) in its closed position, where it is clamped against the fitting (7), as a result of the reduced pressure in the chambers (12, 13), during flight, whilst ensuring the opening of this shutter after landing, under the effect of the elastic means. IMAGE