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
Single-wavelength correction method for luminescent homogeneous biological assay
Network fault detection
Pattern forming method using developer containing organic solvent and rinsing solution for use in the pattern forming method
Apparatus and method for performing lawful intercept in group calls
Organic compounds
Prodrugs of [4 [4-(5-Aminomethyl-2-fluoro-phenyl)-piperidin-1-yl]-(1H-pyrrolo-pyridin-yl- )-methanones and synthesis thereof
Automated dynamic differential data processing
  Randomly Featured Patents
Inner housing of an electrical connector
Method for generating and playing a musical file and a computer-readable media storing the musical file
Apparatus for correcting scanning rate deviation of a galvanometer and correcting method thereof
Magnetic recording layer formed on a photographic film and having an identification code which identifies information segments, and method for recording the same
Travel bag
Serially connected charger
Tumor treatment
Inextensible headgear and CPAP or ventilator mask assembly with the same
Adjustable earcup retention harness
Three dimensional stack package device having exposed coupling lead portions and vertical interconnection elements