CBI Pro-Akademia

After a short introduction characterizing the general outline of the issue, this paper describes the test results of
oil leakage measurements through CVT actuator seals. The research was done using Jatco company's CVT 7
model, the popular gearbox for small passenger cars. Several curves of leakage values are given for both
actuators, concerning different conditions such as rotational speed, oil temperature or pressure.
In the summary several conclusions are formulated, based on presented test results. The determined maximal
value of leakage is about 1 l/min. It emerged that the influence of centrifugal force is negligible. What is more,
the observed phenomena are shortly described and projected for more detailed investigation.