STRAP MOUNTING FOR PENDULUM DAMPERS

摘要

A pendulum damper fixed to a rotating element of an engine comprises a pendulum anchor, a pendulum, and a flexible metal strap attaching the pendulum and pendulum anchor. The strap is wound around the pendulum and pendulum anchor to define a bifilar pendulum. A pendulum clamp is attached to the pendulum such that part of the strap is captured between the pendulum clamp and the pendulum. A pendulum anchor clamp is attached to the pendulum anchor such that a portion of the strap is captured between the pendulum anchor clamp and the pendulum anchor. The pendulum includes a pendulum anchor-facing, flexible strap-supporting cam surface. The pendulum anchor includes a pendulum-facing, flexible strap-supporting cam surface. The surfaces of the pendulum and the pendulum anchor that face each other are mutually conjugant so that at all positions of normal pendulum motion there is only a small running clearance between the two surfaces.

主权项

1. A vibrational damper for an internal combustion engine, the engine having a rotational element, the damper comprising:
a pendulum having first and second ends; a pendulum anchor fixedly attached to the rotational element, the anchor having first and second ends; a flexible strap connecting said first end of said pendulum to said first end of said pendulum anchor and connecting said second end of said pendulum to said second end of said pendulum anchor.