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Development of Double-arm Chain-tensioner System

Article of Honda R&D Technical Review Vol.25 No.1


Research was conducted with a focus on chain-tensioner systems in order to enhance the functions of chain systems. A double-arm chain-tensioner system was developed that differs from a conventional system in adding a sub-tensioner arm (“sub-arm” below) to make use of a lever ratio effect.
As a result, cost and weight have been reduced to levels below those of a conventional system, and chain friction and chain tension have been reduced across the entire operating range. In addition, the rate of chain elongation has been reduced compared to that of a conventional system.


(1) Sakaguchi, M., Yamada, S., Seki, M., Koiwa, Y., Wakabayashi, T., Yamauchi, T.: Prediction of Friction in Timing Chain Using Multi-body Dynamics Simulation, 2011 JSAE Annual Congress Proceedings, No. 154-11, p. 1-6, No. 20115527

Author (organization or company)

Masao SEKI(Automobile R&D Center)

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