Patent ID: 6450304
Filing Date: 2002-09-17
Classification: B60G,F16F

Abstract:
A suspension damper comprising:a cylinder defining a cavity being substantially filled with a fluid; a piston slidably positioned in the cylinder separating the cavity into a compression chamber and an extension chamber; a rod coupled to the piston and extending through one of the chambers and exiting the cavity; a passage through which the fluid moves between the extension chamber and the compression chamber during sliding of the piston in the cylinder; an air pressure actuated control valve assembly responsive to an air pressure input for adjustment to and between a plurality of positions to control the movement of fluid in the passage between the extension and compression chambers; wherein the air pressure input is delivered to the air pressure control valve assembly via the rod; and a filter located in the rod to filter out selected ranges of the air pressure input; wherein a damping force of the suspension damper is a function of the air pressure input.