Patent ID: 7568336
Filing Date: 2009-08-04
Classification: F02C,F02K,F05D,F28D,Y02T

Abstract:
1. An aeroengine comprising: a primary air circuit inside a casing; a high-pressure compressor fed by air from the primary air circuit; a secondary air circuit define by said casing and a radially outward sleeve; and at least one heat exchanger mounted in the primary air circuit upstream from the high-pressure compressor, said heat exchanger comprising a cold secondary circuit and a hot primary circuit, said hot primary circuit being fed with the air from said primary air circuit, and said cold secondary circuit being fed with air from the secondary air circuit, an inlet of the cold secondary circuit of the heat exchanger being connected to air intake means disposed in the secondary air circuit, symmetrically about the axis of said engine the air intake means being configured to take only a fraction of the secondary air stream and an outlet from the cold circuit of the heat exchanger being connected to means for reinjecting air into said secondary air circuit and disposed symmetrically about the axis of said engine; wherein the air intake means and the air reinjection means are constituted by open first ends of pipes having second ends connected to said heat exchanger, said open first ends being distributed angularly in regular manner relative to the axis of the engine.