TORSIONAL VIBRATION DAMPER

摘要

A torsional vibration damper is disclosed. The torsional vibration damper comprises a first member having a radially outer surface that comprises a central concave section axially between convex sections and a second member having a radially inner surface that comprises a central convex section axially between concave sections and that opposes said radially outer surface. The radially outer surface and said radially inner surface are separated by a radial gap that defines a cross-sectional profile having an axial center and axial ends, and wherein said radial gap increases in thickness from said axial center to each said axial end of said cross-sectional profile. Alternatively, the first member may include a central convex section axially between concave sections and the second member may include a central concave section between convex section.