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An Experimental Study on the Dry CVT with Movable Flange of Ball Type  

Jung, S.H. (서울과학기술대학교 NID 융합기술대학원)
Lee, H.S. (동주대학 자동차튜닝과)
Ham, S.H. (동주대학 자동차튜닝과)
Kwon, Y.W. (서일대학 자동차과)
Publication Information
Journal of the Korean Society of Mechanical Technology / v.13, no.2, 2011 , pp. 129-135 More about this Journal
Abstract
Dry CVT(Continuously variable transmission) consists of a driving pulley and a driven pulley joined by rubber V-belt. Each pulley consists of a fixed flange and a movable flange. The movable flange of the driving pulley has the centrifugal roller and a ramp plate in the flange. The movable flange moves toward a fixed flange under the actuation of a centrifugal roller, as the driving pulley speed increases. The main advantages of the Dry CVT with V-belt, which has been popular in Asia, are a simple mechanism, less maintenance and low cost. The important claim which have an influence on the performance of the Dry CVT is the wear of the centrifugal roller. In this study ball type is proposed instead of roller type of movable flange to resolve claim. Also experiments are carried out for new model to evaluate performances.
Keywords
Dry CVT; Movable Flange; Fixed Flange; Centrifugal Roller; Centrifugal Ball;
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