US 11,891,955 B2
Optimised heat exchange system of a turbomachine
Ephraïm Toubiana, Moissy-Cramayel (FR); Samer Maalouf, Moissy-Cramayel (FR); and Etienne Yung Tang, Moissy-Cramayel (FR)
Assigned to SAFRAN, Paris (FR)
Appl. No. 17/611,319
Filed by SAFRAN, Paris (FR)
PCT Filed May 11, 2020, PCT No. PCT/FR2020/050771
§ 371(c)(1), (2) Date Nov. 15, 2021,
PCT Pub. No. WO2020/234525, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 1905261 (FR), filed on May 20, 2019.
Prior Publication US 2022/0205390 A1, Jun. 30, 2022
Int. Cl. F02C 7/18 (2006.01); F28D 7/08 (2006.01); F28F 13/08 (2006.01); F28D 21/00 (2006.01)
CPC F02C 7/18 (2013.01) [F28D 7/085 (2013.01); F28F 13/08 (2013.01); F05D 2260/22141 (2013.01); F28D 2021/0021 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A heat exchange system of a turbomachine, the heat exchange system comprising: a heat exchanger comprising a support wall, a plurality of fins each extending in a radial direction from a radially outer surface of the support wall and configured to be swept by an air flow, and a cover covering the fins, wherein the cover is connected upstream, in a direction of flow of the air flow, to a first profiled wall and downstream to a second profiled wall,
wherein the first profiled wall is arranged upstream from the plurality of fins and configured so as to guide and slow down the air flow entering the heat exchanger through the plurality of fins, the first profiled wall comprising a first wall portion forming, with the support wall, an air inlet having a first radial height, said first height being less than a radial height of the fins
wherein the second profiled wall is arranged downstream of the plurality of fins and configured to accelerate the air flow exiting the heat exchanger,
wherein the cover has an at least partly curvilinear aerodynamic profile and an outer peripheral surface having surface continuity with radially outer surfaces of the first and second walls.