ROTARY VARIATOR FOR A CONTINUOUSLY VARIABLE TRANSMISSION

摘要

A continuously variable transmission pulley includes a body defining a hollow tube having a longitudinal central bore. Multiple cylinders are fixed to the body each having a cylinder bore in fluid communication with the longitudinal central bore. A piston is slidably positioned in the cylinder bore of each of the cylinders. A pressurized fluid present in the central bore acts equally against each of the pistons to equally outwardly displace the pistons. A biasing member is connected to each piston and is in direct contact with the pressurized fluid. A friction member is connected to a free end of each of the pistons. Diametrically opposed ones of the friction members define a pulley diameter that varies depending on a portion of the diametrically opposed ones of the pistons extending outwardly from the cylinders.

主权项

1. A continuously variable transmission pulley, comprising:
a body defining a hollow tube having a longitudinal central bore; multiple cylinders fixed to the body having successive ones of the cylinders equally spaced about a perimeter of the body; a central axis of each of the cylinders is aligned with a longitudinal center axis of the central bore of the body; and a piston slidably positioned in a cylinder bore of each of the cylinders, the piston co-axially aligned with the central axis of the cylinder; wherein a pressurized fluid present in the central bore acts equally against each of the pistons to equally outwardly slidably displace the pistons.