Patent ID: 7430852

Claim:
A turbojet comprising a body having at least one compressor, a combustion chamber and a turbine, and a fan mounted upstream from the body and rotated by the turbine for producing a bypass flow to flow around the body, wherein a stationary substantially-cylindrical jacket surrounds the body and defines a substantially-cylindrical inner surface for guiding the bypass flow, the jacket being made as a single rigid piece and being fastened at its upstream end to an intermediate casing of the body and at its downstream end to an exhaust casing of the body for transmitting forces in operation between the intermediate casing and the exhaust casings, wherein said body has a wasp waist defined by a reduction in a transverse dimension of said body between said fan and said turbine so that said turbojet has a bypass ratio greater than 5, said bypass ratio being a ratio of said bypass flow to a main flow through said compressor.