Patent ID: 11009038

Abstract:
The invention relates to a diffuser (5) of a radial or hybrid compressor (2) comprising an internal shroud (20), an external shroud (30) and a series of vanes (10), the trailing edge (12) of each vane (10) being curved in such a way that a distance (di) between the leading edge (11) and the trailing edge (12) of the vane (10) at the mid-height point (h/2) of the vane (10) is 5% to 15% shorter than a distance (d2) between the leading edge (11) and the trailing edge (12) of the vane (10) at the level of the internal shroud (20), the trailing edge (12) also having an evolving cross section comprising a first part forming a low wall (14) in the vicinity of the external shroud (20) and having a height (H) equal to at most 10% of the height (h) of the vane (10), a curved second part and a third part forming a low wall (14) substantially identical to the first part.