Variable core engine process for clothing - turbofan engines with a high bypass ratio

摘要

A core engine process is described for clothing - turbofan engines with a high bypass ratio, comprising a plurality of movable segments 11, 12, which the core engine 7 in the outlet area of the secondary flow channel enveloping, wherein the fanleitschaufel 3 facing segments 11 and the to the outlet area of the secondary flow channel is oriented in the direction of the segments 12 a plurality of overlapping regions 21, 22 are formed, whereby the overlapping areas both in the circumferential direction of the core engine combustion clothing as well as in the axial direction are formed for this purpose.This invention makes use of the empty space 17 between the inner nozzle contour of the secondary flow channel and the core engine 7 which, in the case of a turbofan - aircraft engines with a high bypass ratio is present.The invention thus provides a device which the change in the inner contour of the secondary flow channel by overlapping sector profiles of the nozzle ensures.