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Continuously variable transmission leakage test results

Continuously variable transmission leakage test results

Date added: 2019-04-01

Pages: 5-13


Author/Authors

Jarosław Goszczak, Bartosz Radzymiński, Grzegorz Mitukiewicz


Abstract

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.

https://doi.org/10.32933/ActaInnovations.31.1


Keywords

passenger car‘s driveline, power loss, efficiency improvement, continuously variable transmission, hydraulic control system, leakage values


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