Hydraulic Tensioning System
AssigneeSchaeffler KG
InventorsLucian Botez, Brandon Glass, Bolko Schuseil
Life of this patent
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Abstract
A hydraulic tensioning system (10) for an endless drive (1) of an internal combustion engine (2). In an operating mode, the piston (9) of the tensioning system (10), which is supplied with a hydraulic fluid, is supported against a tensioning rail (6) with a non-positive fit, with the rail pre-tensioning the traction drive element (4). If the hydraulic fluid in the tensioning system (10) is not sufficient, the tensioning rail (6) is supported on an elastic end stop (13a) of the system (10).
Claims14
Hydraulic tensioning system for an endless drive of an internal combustion engine, comprising a housing for holding a cylinder, in which a spring-mounted piston pressurized by a hydraulic fluid and interacting with a traction drive element is guided so that it can move longitudinally, the piston together with the cylinder define boundaries of a pressure space filled with hydraulic fluid, for damping adjustment movements of the piston, a damping device is provided, in which some amount of the hydraulic fluid can be discharged from the pressure space via at least one leakage gap, and for a drop in pressure and/or high-frequency vibrations of the endless drive, the traction drive element is supported directly or indirectly on an elastic end stop that forms a second damping device in the hydraulic tensioning system.
Tensioning system for an endless drive of an internal combustion engine, comprising a stationary housing, which is allocated to a spring-mounted belt or chain drive that can interact with a traction drive element and can also be displaced linearly or can be pivoted, wherein a damping device damps adjustment movements of the endless drive, and the endless drive is supported in an end position on an elastic end stop forming a second damping device.
Dependencies are inferred from the claim text.