Patent ID: 6312351
Filing Date: 2001-11-06
Classification: F16H

Abstract:
A hydraulic tensioner comprising:a generally cylindrical hollow body having a lower end;a hollow piston having a closed upper end and an open lower end, said piston being slidably received within said hollow body, said open lower end of said piston being received in said body to form a fluid chamber with said body;a spring positioned within said hollow piston, said spring biasing said piston in a protruding direction from said body;a mounting assembly having a fluid passage therein to permit fluid to flow from a source of pressurized fluid to the fluid chamber; and,a check valve operatively positioned between the chamber and the source of pressurized fluid to permit fluid flow into the fluid chamber while blocking flow in the reverse direction;said piston having a pivot connection at said closed end to permit attachment of said piston to a tensioner arm;said lower end of said body being pivotally mounted to the mounting assembly.