Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Shock absorber unit for vehicles










Image Number 3 for United States Patent #4485899.

In a shock absorber unit for vehicles of the double-tube type a piston rod guiding and sealing unit is provided adjacent a first end of a cylinder and a container surrounding the cylinder, and a bottom valve unit is provided at a second end of the cylinder and the container, respectively. The cavity within the cylinder is divided into two working chambers by a piston unit. The piston unit is connected to a piston rod extending through the piston rod guiding and sealing unit. The cavity within the cylinder is filled with a damping liquid. The compensation chamber defined radially between the cylinder and the container is partially filled with damping liquid and partially filled with gas. Adjacent the piston rod guiding and sealing unit, there is provided a by-pass connection the working chamber adjacent the piston rod guiding and sealing unit and the compensation chamber. This by-pass defines a throttling flow cross-sectional area. This flow cross-sectional area is defined by a temperature sensitive member having a high coefficient of thermal expansion, such that the throttling flow cross-sectional area is reduced in response to increasing temperature. By this reduction the reduction of viscosity is compensated for, such as to maintain the damping characteristic of the shock absorber unit approximately invariable within a predetermined range of operational temperatures.








 
 
  Recently Added Patents
Atmospheric treater with roller confined discharge chamber
Shape memory polymers formed by self-crosslinking of copolymers
Systems and methods for a signed magnitude adder in one's complement logic
MRAM with sidewall protection and method of fabrication
Method and apparatus for prioritizing data transfer
Vacuum switch and electrode assembly therefor
(4930
  Randomly Featured Patents
Stable synthetic material and method for preparing same
Electroless Ni/Pd/Au metallization structure for copper interconnect substrate and method therefor
Preparation of stable, bright luminescent nanoparticles having compositionally engineered properties
Method and apparatus for driving an active matrix display panel
Capillary flow for a heterogenous assay in a micro-channel environment
Methods and apparatus for investigating an earth formation and compensating for borehole environmental effects
Method and apparatus for continuously boring and lining tunnels and other like structures
Method and apparatus for determining a longest matching prefix from a dictionary of prefixes
Pizza pie with crust structure
Document handling apparatus and method