Patent ID: 9599184
Date: 2017-03-21
CPC Classifications: F16F

Claim:
1. A fluid damper assembly for dampening vibrations between a frame and a wheel assembly of a vehicle, said fluid damper assembly comprising: a housing defining a chamber and disposed on a center axis, a rod extending into said chamber and axially moveable relative to said housing, a bushing disposed about said rod and fixed relative to said housing for guiding said rod during said axial movement of said rod, a piston connected to said rod disposed in axially sliding engagement with said housing in said chamber in a compression stroke and in a rebound stroke in response to relative movement between said rod and said housing, a cushioning device extending from said bushing and biasing said piston toward said compression stroke for dampening movement of said piston during the rebound stroke of said piston, said cushioning device and said bushing being integral with one another and of a homogeneous material, said cushioning device presenting a plurality of corrugations and defining a cavity, said cushioning device defining a plurality of holes spaced from one another to allow fluid to flow through said holes into and out of said cavity as said cushioning device being compressed and decompressed during axial movement of said piston, said corrugations being defined by a plurality of peaks and valleys with said peaks disposed radially outwardly from said valleys, said holes being defined by said peaks to allow the fluid to flow through said holes during compressing of said cushioning device.