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
Adaptive contact window wherein the probability that an answering user/expert will respond to a question corresponds to the answering users having response rates that are based on the time of
Method and device for synthesizing image
System and method for order placement in an electronic trading environment
Semiconductor memory device, test circuit, and test operation method thereof
Driving apparatus having an optical sensor and a thermal sensor for thermal and aging compensation of backlight module and driving method of backlight module
Magnetic recording medium, information storage device, and method of manufacturing magnetic recording medium
Hedge shear
  Randomly Featured Patents
Semiconductor integrated circuit tester
Non-aqueous dispersions of relatively high molecular weight epoxy resins
Three-phase line reactor with skew yoke core design
Paper towel dispenser
System and method for improving speech recognition accuracy using textual context
Digital PLL frequency synthesizer
Table lamp
Cactaceae plant named Rudolph II
Use of lymphocytes transformed with herpesvirus saimiri in a process for replicating viruses of the HIV type which cause immune deficiency
Controlled release formulation of divalproex sodium