Resources Contact Us Home
Dual stage dampers for vehicles suspensions

Image Number 4 for United States Patent #7963377.

Dampers for vehicle suspensions include a housing comprising a tube attached to a wheel axle of a vehicle and a piston rod extending from a piston within the tube and attached to the vehicle body. The piston divides the tube into first and second chambers. In order to damp responses when minor smooth road imperfections impart low force excitations to the wheel of the vehicle, a fluid bypass passageway in the form of a sleeve is positioned around the tube and overlies the piston. This provides second stage quasi-ideal damping at low force excitations to the wheels and thus to the wheel axles of the vehicle. The sleeve communicates with the first and second chambers through metered orifices or valves. As low force excitations from smooth road imperfections displace fluid within the tube through the metered orifices or valves, the orifices damp responses to the low force excitations, thereby smoothing the ride of the vehicle. The fluid bypass passageway facilitates calibrating the damper to respond at least close to an empirically obtained quasi-ideal damper response with respect to the low force excitations.

  Recently Added Patents
Personalized dashboard architecture for displaying data display applications
Method of fabricating crystal unit, crystal unit fabrication mask, and crystal unit package
Enediyne compounds, conjugates thereof, and uses and methods therefor
Cellulose ester compositions having low birefringence and films made therefrom
Semiconductor pressure sensor
Image processing unit, image processing method and program
Catheter with multiple electrode assemblies for use at or near tubular regions of the heart
  Randomly Featured Patents
Palm mouse
Combined stuffed plush soccer ball and attached child sized security blanket
Alkylsulfonamidophenylalkylamine compounds used for treating arrhythmia
Electrostatographic toner and developer compositions with phthalimide derivatives
Pressure sensor for detecting the pressure in combustion chamber of combustion engine
(Substituted pyridyl)phenoxy phosphorus compounds and their use as insecticides
Belt buckle
Pair of motorcycle belt covers
TCP extension and variants for handling heterogeneous applications
Multi-projector mosaic with automatic registration