Title:
TRIPLE-FLOW AXIAL TURBOMACHINE COMPRISING A DIVERGING HEAT EXCHANGER IN THE THIRD FLOW
Document Type and Number:
WIPO Patent Application WO/2023/099539
Kind Code:
A2
Abstract:
Disclosed is an axial turbomachine (2) that comprises: a first splitter (10) capable of separating an incoming airflow (F) into a radially internal airflow (F') and a radially external airflow, referred to as secondary flow (F2); a second splitter (14) capable of separating the radially internal airflow into a primary flow (F1) and a tertiary flow (F3), said tertiary flow being in a tertiary stream (16) radially external to said primary flow; an air-to-oil heat exchanger (18) placed in the tertiary stream and including surfaces exchanging heat with the air and oil passages extending into said tertiary stream; and structural arms (60) extending radially through the tertiary stream. The axial turbomachine (2) is characterised in that each structural arm has, in the tertiary stream, a cross-section with a downstream portion (62) the width of which decreases downstream, the heat exchanger being adjacent to said downstream portions of the structural arms.
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Inventors:
WEICKER DAVID (BE)
CLEYET FLORIAN (BE)
SERVAIS BRUNO (BE)
CLEYET FLORIAN (BE)
SERVAIS BRUNO (BE)
Application Number:
PCT/EP2022/083801
Publication Date:
June 08, 2023
Filing Date:
November 30, 2022
Export Citation:
Assignee:
SAFRAN AERO BOOSTERS SA (BE)
International Classes:
F02C3/06; F02C7/14; F02C7/18; F02K3/06; F02K3/077; F28D7/00; F28D7/08; F28D21/00; F28F7/02; F28F13/08
Foreign References:
| EP3674531A1 | 2020-07-01 | |||
| US20210108597A1 | 2021-04-15 |
Attorney, Agent or Firm:
LECOMTE & PARTNERS (LU)
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