Drive shaft constant velocity joint assembly with radial elliptical projections

摘要

A driveshaft assembly includes a driveshaft (110) with a pair of constant velocity joints disposed at each end of the driveshaft. Each of the constant velocity joints provides torque transfer from the driveshaft to an adapter disposed to driveshaft using a plurality of elliptical projections (330) that mate with interior grooves (210) of the adapter (120). Stress concentration on the projections may be reduced in some embodiments by providing a variable radius fillet (340) around each of the projections at the intersection of the projection with the driveshaft.