Hydraulic torquemeter
AssigneeSafran Helicopter Engines
InventorLaurent HOUSSAYE
Life of this patent
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Abstract
A hydraulic torquemeter comprising a rod which is translatable in a longitudinal direction under the effect of axial thrust which is representative of the torque to be measured, and a hydraulic circuit in which a fluid flows. It also comprises a manometric capsule comprising a pressure chamber which is supplied with fluid by said hydraulic circuit, a sealed flexible membrane which is in contact with the fluid in the pressure chamber, extends in a plane which is substantially perpendicular to said rod, and is rigidly connected to one end of the rod in such a way that a longitudinal movement of the rod deforms the membrane, a drain port for the fluid in said pressure chamber, and a valve designed to adjust the pressure of the fluid in said pressure chamber according to the deformation of said membrane.
Claims7
Hydraulic torquemeter comprising:
- a rod translatable in a longitudinal direction under the effect of axial thrust which is representative of the torque to be measured;
- a hydraulic circuit in which a fluid flows;
- and
- a manometric capsule comprising:
- a pressure chamber which is supplied with fluid by said hydraulic circuit,
- a sealed flexible membrane in contact with the fluid in the pressure chamber, wherein the sealed flexible membrane extends in a plane which is substantially perpendicular to said rod, and is rigidly connected to the rod in such a way that a longitudinal movement of the rod deforms the membrane,
- a drain port in said pressure chamber, which is joined to a valve supported on one end of said rod so as to adjust the pressure of the fluid in said pressure chamber according to the deformation of said membrane.
Dependencies are inferred from the claim text.