| 摘要 |
<p>An assembly (19) for damping torsionals in a vehicle driveline. Assembly (19) includes a spring assembly (20) and a vane damper assembly (22) disposed in parallel and immersed in automatic transmission fluid of a torque converter housing (24). The spring assembly (20) isolates driveline torsionals and the damper assembly (22) dissipates the torsionals. The damper assembly (22) includes first and second relatively rotatable housing members (66,68) respectively connected to the spring assembly output (62b) and input (62a). Members (66,68) are also frictionally interconnected by surfaces (68a ,74a). Rousing members (66,68) define chambers (78a,78b) which vary inversely in volume in response to flexing of the spring assembly (20) by the driveline torsionals. The chambers are in communication with the fluid in the torque converter housing via restricted passages (86,88). As the chambers vary in volume, energy from the torsionals is converted to fluid pressure in the chambers decreasing in volume. The pressure increases the engagement force of the friction surfaces. Lugs (77a) drivingly connecting the second member (68) to the torque housing include valving members (77c,77d) which close or partially close the passages associated with the chamber decreasing in volume.</p> |
