Title:
NACELLE AIR INTAKE FOR AN AIRCRAFT PROPULSION ASSEMBLY TO PROMOTE A THRUST REVERSAL PHASE
Document Type and Number:
WIPO Patent Application WO/2022/096359
Kind Code:
A1
Abstract:
Disclosed is an air intake (1) for an aircraft propulsion assembly (8) extending along a longitudinal axis (X) and comprising a turbine engine (7) that comprises a primary flow path (4) and a secondary flow path (5) for respectively guiding a primary air flow (F1) and a secondary air flow during a thrust, and thrust reversal means for changing the secondary airflow into a reverse airflow (F-INV) during a thrust reversal (B), the air intake (1) comprising a peripheral external enclosure (11) comprising, in each plane radial to the axis (X), a point of maximum curvature (P) for detaching the reverse airflow (F-INV), an osculating circle comprising a radius of curvature that is defined at each of the points of maximum curvature (P), the average value (Rmoy) of the radii of curvature verifying: Rmoy < 0.028 * R3, with R3 the internal radius of the air intake (1).
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Inventors:
CHERAGA YACINE (FR)
MINCU DANIEL-CIPRIAN (FR)
CHANEZ PHILIPPE GÉRARD (FR)
LECORDIX JEAN-LOÏC HERVÉ (FR)
MINCU DANIEL-CIPRIAN (FR)
CHANEZ PHILIPPE GÉRARD (FR)
LECORDIX JEAN-LOÏC HERVÉ (FR)
Application Number:
PCT/EP2021/079953
Publication Date:
May 12, 2022
Filing Date:
October 28, 2021
Export Citation:
Assignee:
SAFRAN AIRCRAFT ENGINES (FR)
International Classes:
B64D33/02; B64C7/02; B64D29/00; F02C7/04
Foreign References:
| CA1209354A | 1986-08-12 | |||
| FR3095244A1 | 2020-10-23 | |||
| US10399687B2 | 2019-09-03 | |||
| FR2120172A1 | 1972-08-11 | |||
| FR1904087A | 2019-04-17 | |||
| FR1904094A | 2019-04-17 | |||
| FR1904089A | 2019-04-17 | |||
| FR1904096A | 2019-04-17 | |||
| FR1904092A | 2019-04-17 | |||
| US10399687B2 | 2019-09-03 |
Attorney, Agent or Firm:
ARGYMA (TOULOUSE, FR)
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