The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 2020
Filed:
Sep. 27, 2018
Applicant:
Safran Aero Boosters SA, Herstal, BE;
Inventor:
Stéphane Hiernaux, Oupeye, BE;
Assignee:
SAFRAN AERO BOOSTERS SA, Herstal, BE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); F04D 29/68 (2006.01); F04D 29/32 (2006.01); F04D 29/54 (2006.01);
U.S. Cl.
CPC ...
F01D 5/145 (2013.01); F01D 5/143 (2013.01); F04D 29/321 (2013.01); F04D 29/542 (2013.01); F04D 29/544 (2013.01); F04D 29/681 (2013.01); F05D 2240/30 (2013.01); F05D 2250/71 (2013.01); F05D 2250/711 (2013.01); F05D 2250/712 (2013.01);
Abstract
In an axial turbomachine low-pressure compressor, the compressor, or booster, includes a first vane with an intrados surface, a second vane with an extrados surface, an inter-vane passage with a guiding surface, which connects the intrados surface to the extrados surface delimiting an annular vein, and which has a bulge and a recess forming a so-calledD contouring geometry, or non-axisymmetric surface. The guiding surface includes an axially symmetrical or substantially flat zone, which axially extends through the inter-vane passage so as to separate the recess from the bulge.