US 12,281,576 B2
Turbomachine distributor comprising a gas reintroduction duct with a tangential component
Jérôme Claude George Lemonnier, Moissy-cramayel (FR); Franck Davy Boisnault, Moissy-cramayel (FR); and Antoine Bruno Van Noort, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 18/546,534
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Feb. 14, 2022, PCT No. PCT/FR2022/050265
§ 371(c)(1), (2) Date Aug. 15, 2023,
PCT Pub. No. WO2022/180322, PCT Pub. Date Sep. 1, 2022.
Claims priority of application No. 2101739 (FR), filed on Feb. 23, 2021.
Prior Publication US 2024/0133311 A1, Apr. 25, 2024
Prior Publication US 2024/0229671 A9, Jul. 11, 2024
Int. Cl. F01D 11/12 (2006.01); F01D 11/02 (2006.01)
CPC F01D 11/122 (2013.01) [F01D 11/02 (2013.01); F05D 2230/237 (2013.01); F05D 2230/60 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A distributor for a turbine of a turbomachine, the distributor extending around a longitudinal axis, the distributor comprising:
a radially inner platform configured to delimit radially inwards a turbomachine gas flow path,
at least one blade extending radially outwards from the radially inner platform and a root extending radially inwards from the radially inner platform, the root being coated with a track made of an abradable material with a rotating seal of a turbomachine, and
a duct for reintroducing leakage gas into the turbomachine gas flow path, the duct comprising an inlet opening through the track made of an abradable material, an outlet opening through a downstream surface of the root of the distributor, and a duct intermediate portion which extends from the inlet up to the outlet, the duct intermediate portion being oriented with a tangential component with respect to the longitudinal axis,
wherein the duct intermediate portion is a groove formed in a radially inner surface of the root to which the track made of an abradable material is fastened.