US 12,339,185 B2
Hydraulic torque measurement device for aircraft engine unit
Laurent Louis Sylvain Houssaye, Moissy-Cramayel (FR)
Assigned to SAFRAN HELICOPTER ENGINES, Bordes (FR)
Appl. No. 17/998,885
Filed by SAFRAN HELICOPTER ENGINES, Bordes (FR)
PCT Filed May 9, 2021, PCT No. PCT/FR2021/050791
§ 371(c)(1), (2) Date Nov. 15, 2022,
PCT Pub. No. WO2021/234239, PCT Pub. Date Nov. 25, 2021.
Claims priority of application No. 2005064 (FR), filed on May 19, 2020.
Prior Publication US 2023/0213399 A1, Jul. 6, 2023
Int. Cl. G01L 3/14 (2006.01); G01L 5/12 (2006.01); G01M 15/02 (2006.01); G01L 1/02 (2006.01)
CPC G01L 3/1414 (2013.01) [G01L 5/12 (2013.01); G01M 15/02 (2013.01); G01L 1/02 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A hydraulic torque measurement device for a gearbox of an aircraft engine unit comprising at least one sprocket having a shaft extending along a longitudinal axis, the hydraulic torque measurement device comprising:
an enclosure comprising a rigid wall and a deformable wall delimiting an internal volume, the deformable wall being configured to be pivotally connected to the shaft of the sprocket, and
at least one pressure measurement element adapted to measure a pressure prevailing in said internal volume,
the hydraulic torque measurement device allowing a service state in which the internal volume is filled exclusively with an incompressible liquid, and in which the deformable wall is configured to be subjected to a pressure force,
wherein the enclosure is hermetically sealed.