Damper-type flywheel suitable for torque transmission devices
AssigneeValeo
InventorsHerve Focqueur, Bernard Jumel, Michel Blard
Life of this patent
Estimating the term…
Abstract
A damper-type flywheel comprises two coaxial parts adapted to rotate relative to each other about their common axis. A circumferentially acting spring device is operatively disposed between the two coaxial parts. An annular fluid-tight cavity is defined between the two coaxial parts. A viscous damper device accommodated in the fluid-tight cavity is mechanically disposed between the two coaxial parts. The viscous damper device may comprise two groups of fins in the annular cavity each constrained to rotate with a respective one of the two coaxial parts, the annular cavity containing a viscous, preferably non-Newtonian fluid such as a silicone-based fluid.
Claims20
Damper-type flywheel comprising two coaxial parts adapted to rotate relative to each other about their common axis, circumferentially acting spring means operatively disposed between said two coaxial parts, an annular fluid-tight cavity defined between said two coaxial parts and a viscous damper device mechanically disposed between said two coaxial parts within said fluid-tight cavity, said viscous damper device comprising two groups of fins in said annular cavity each constrained to rotate with a respective one of said two coaxial parts and said annular cavity containing, in use, a viscous fluid, and shaped linking members associated with each coaxial part coupling said groups of fins for rotation with the respective coaxial part, at least one of said groups of fins being coupled to its respective coaxial part with a predetermined circumferential clearance.
Dependencies are inferred from the claim text.