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
Selecting modulation and coding scheme in the presence of interference
Storage apparatus and storage apparatus management method performing data I/O processing using a plurality of microprocessors
Lens barrel and imaging device
Non-aqueous electrolyte battery
Braided boomerang pet toy
Sample chamber for laser ablation inductively coupled plasma mass spectroscopy
Method and apparatus for accessing coconut water
  Randomly Featured Patents
Lounge chair cover
Simulated ice crystal formation on substrates by glue chipping
Apparatus and method for obtaining motion adaptive high dynamic range image
Programmable logic device with soft multiplier
Refractory anchor
Method of fabricating a thermal pane window and product
Grindstone-polymer composite for super colloid mill and manufacturing method thereof
Olanzapine pamoate dihydrate
Vacuum assisted transfer mold and vent pin
Two-way roller clutch assembly