Patent ID: 8677764

Claim:
An aircraft propulsion unit that comprises: a nacelle in which a power plant is arranged, said nacelle comprising an inside wall that delimits a pipe with an air intake at a front of the nacelle; a propulsion unit comprising a frost treatment system that comprises at least one first pipe that is equipped with first means for regulating passing air, for directing hot air from the power plant to the air intake, and an exhaust system that comprises at least one second pipe that is equipped with second means for regulating the passing air, for directing air from a combustion chamber of the power plant to a delivery zone to be discharged into the air intake, and said at least one second pipe is connected to said at least one first pipe, wherein the first means for regulating air that passes into said at least one first pipe are separate from and parallel to the second means for regulating the air that passes into said at least one second pipe, and the first means for regulating air is a variable restriction.