Primary and secondary flow turbofan engine for aircraft, has nacelle provided with mobile rear part that takes thrust reverse position for increasing ejection zone of secondary flow in deployed position of flaps

摘要

The engine has a nacelle (10), a primary path (12) and a secondary path. Flaps (20) are integrated in a normal position to an inner wall (21) of the secondary path at the level of an ejection section of a secondary flow (17), and are deployed to deflect the secondary flow to obtain a thrust reverse effect. The nacelle includes a mobile rear part (30) that takes a thrust reverse position for increasing the ejection section of the secondary flow in a deployed position of the flaps.