| 摘要 |
PCT No. PCT/FR89/00170 Sec. 371 Date Dec. 11, 1989 Sec. 102(e) Date Dec. 11, 1989 PCT Filed Apr. 14, 1989.Device for driving at least one driven shaft A1, by means of a driving shaft V, comprising a closed-loop transmission connection for constant length defining a tight side BT and a slack side BM on which a first tightener T1 acts, characterized in that there is provided at least a second tightener T2 acting on the tight side and means for actuating said tighteners in synchronism. These tighteners are of the hydraulic type and the device has a particular application in the adjustment of the setting of camshafts or shafts for rotation of injection pumps in internal combustion or explosion engines.
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