Hydraulic torque measurement device for aircraft engine unit
AssigneeSafran Helicopter Engines
InventorLaurent Louis Sylvain Houssaye
Life of this patent
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Abstract
A hydraulic torque measurement device for an aircraft engine unit includes a hermetically sealed enclosure having a rigid wall and a deformable wall that define an internal volume. The device further includes at least one pressure measuring element capable of measuring the pressure prevailing in the internal volume. The hydraulic torque measuring device allows 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. In some embodiments, the hydraulic torque measurement device is suitable for use with a gearbox.
Claims11
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.
A gearbox for aircraft engine unit, the gearbox comprising a hydraulic torque measurement that includes a hydraulic torque measurement device having at least one sprocket with 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, the gearbox comprises at least one sprocket having a shaft extending along a longitudinal axis (A), the deformable wall is pivotally connected to the shaft, and the rigid wall comprises a filling and purging conduit, said filling and purging conduit being obturated in a service state of the hydraulic device.
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, and wherein the rigid wall comprises a filling and purging conduit, said filling and purging conduit being obturated in a service state of the hydraulic device.
Dependencies are inferred from the claim text.