Resources Contact Us Home
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
Method and device for monitoring and analyzing signals
Imaging lens with three lens elements, and electronic apparatus having the same
Categorization of design rule errors
Snap-engagement structure
Liquid crystal display device
Method of treating a preceramic material
Dynamic trunk distribution on egress
  Randomly Featured Patents
Particulate polystyrene containing blowing agent and having improved expandability
Tire inflation pressure detecting apparatus capable of triggering only selected transceiver to perform task
System and method for extending communications between participants in a conferencing environment
Device for treating flat material
Process for making solar cell base material
Rotary variable expansible chamber-kinetic hybrid pump
Process for applying a thin film containing polysiloxane to tissue paper
Braking control device, particularly for skates
Card reader with improved data processing timing control
Decorative christmas lamp post