| 摘要 |
A tensioning system ( 18 ) is provided, which interacts with a traction element of a traction element drive via a tensioning rail. The construction of the tensioning system ( 18 ) includes a pot-shaped housing ( 19 ), which forms a pressure space ( 20 ), in which a piston ( 21 ) is guided so that it can move longitudinally. For an adjustment movement of the piston ( 21 ) in a direction of the pressure space ( 20 ), the hydraulic fluid enclosed in the pressure space ( 20 ) is regulated by a leakage gap ( 24 ). An opposite adjustment movement of the piston ( 21 ) causes a return flow of the hydraulic fluid into the pressure space ( 20 ) via a one-way valve ( 1 a) integrated in the piston ( 21 ). The construction of the one-way valve ( 1 a) includes a cage ( 2 ), in which a valve body ( 3 a) constructed as a disk is inserted captively and is guided between a valve seat ( 5 ) and a rim ( 8 ) so that it can move axially.
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