It is very well known that cavitation is an undesirable
phenomenon appearing on the telescopic hydraulic shock-absorbers
causing a reduction in their absorption capacity, in their
efficiency brought about by high temperatures, and causing
unpleasant sonorous effects, an untimely wear of the components,
etc.
The present work puts forward a structural principle which
applied to the absorbers will result into a diminished cavitation
risk starting from the anticavitation effects: foam building and
thermal stability of the damping characteristic.
On the basis of the mentioned principle and of the laboratory
analysis it has been succeeded in working out an anticavitation
telescopic hydraulic absorber with a minimum foam building effect
and with less than 10% /90°C/ efficiency loss at high
temperatures, much less than it is experienced with the already
known absorbers.
When mounted on the motor-vehicles the absorbers of this type
provide the necessary stability of the suspension no matter what
the servicing conditions may be.