Novel, high performance, power transmission couplings

Power transmission couplings which accommodate axial, bending and, - in pairs - transverse displacements, must y carrying relatively large torsional loads. It is also required for some installations that torsional stiffness be prescribed such as avoid system instabilities.Attributes of a coupling which would be perceived as advantageous would be lack of maintenance requirements; long service life via absence of moving parts and consequential wearnoise generation and attenuation of upstreamdriveline noise and vibration; and inherent torque density (large torque in a small envelope). It has also been recognized that if the flexible of a single filament wound composite structure, the low 'part t' might translate into a competitive selling price. Niche applications like helicopter driveshafts typically fic performance from each axis. A newly patented composite coupling concept is proposed .