US 11,754,342 B2
Bypass air/fluid heat exchanger, method for manufacturing same and turbofan engine provided with such exchanger
Paul Ghislain Albert Levisse, Moissy-Cramayel (FR); Pierre Jean-Baptiste Metge, Moissy-Cramayel (FR); Alexandre Corsaut, Moissy-Cramayel (FR); and Catherine Pikovsky, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 17/604,233
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Apr. 14, 2020, PCT No. PCT/EP2020/060449
§ 371(c)(1), (2) Date Oct. 15, 2021,
PCT Pub. No. WO2020/212340, PCT Pub. Date Oct. 22, 2020.
Claims priority of application No. FR1904100 (FR), filed on Apr. 17, 2019.
Prior Publication US 2022/0205726 A1, Jun. 30, 2022
Int. Cl. F28D 7/00 (2006.01); F02C 7/14 (2006.01); F02K 3/115 (2006.01); F28F 1/26 (2006.01); F28F 3/12 (2006.01); F28D 21/00 (2006.01)
CPC F28D 7/005 (2013.01) [F02C 7/14 (2013.01); F02K 3/115 (2013.01); F28F 1/26 (2013.01); F28F 3/12 (2013.01); F05D 2260/213 (2013.01); F28D 2021/0021 (2013.01); F28D 2021/0049 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A secondary air/fluid heat exchanger for a bypass turbomachine, wherein the exchanger comprises:
an outer ring, annular, with an inner wall and an outer wall,
an inner ring, annular, concentric with the outer ring,
a series of outlet guide vanes (OGV) connecting said outer ring to said inner ring,
and a circuit for circulating a fluid,
wherein the two rings delimit a secondary air path, wherein the circuit for circulating the fluid is formed in a thickness of said outer ring between the inner wall and the outer wall of the outer ring and in a thickness of at least one OGV guide vane of the series of OGV guide vanes, the circuit for circulating the fluid opening at both ends into an inlet orifice and into an outlet orifice, formed through the outer wall of the outer ring on either side of the at least one OGV guide vane along circumferential direction of the heat exchanger, and wherein the two rings, the OGV guide vanes and the circuit for circulating the fluid are integral, the heat exchange taking place between the fluid and a secondary air circulating in the secondary air path.