Double-fly wheel damper with epicyclic gear train
AssigneeValeo Embrayages
InventorPatrick Le Moal
Life of this patent
Estimating the term…
Abstract
A double shock-absorbing steering wheel, in particular for automobile vehicles, including a primary inertia mass connected to an engine shaft (12), a secondary inertia mass (14) connected by clutch E to a gearbox BV, and a torsion damper (18) rotatably connecting the two inertia masses (10, 14). The torsion damper includes an epicycloidal gear train whose outer crown wheel (22) engages with a spring (28) for absorption of vibrations and rotation acyclisms. The spring is mounted around the crown wheel (22) in a fixed frame (26).
Claims15
A double-flywheel damper including:
- two flywheels rotatable about the same axis and connected by a torsion damper;
- the torsion damper including at least one spring and an epicyclic gear train;
- the epicyclic gear train including a sun wheel, an outer crown wheel and a planet gear carrier having planet gears meshing with the sun wheel and the outer crown wheel;
- the at least one spring disposed in a fixed chassis and associated with a first element of the epicyclic gear train;
- the first element of the epicyclic gear train being one of sun wheel, the outer crown wheel and the planet gear carrier.
A double-flywheel damper including:
- a torsion damper;
- and
- two flywheels rotatable about the same axis and connected by the torsion damper;
- the torsion damper including at least one spring and an epicyclic gear train;
- the epicyclic gear train including a sun wheel, an outer crown wheel and a planet gear carrier having planet gears meshing with the sun wheel and the outer crown wheel;
- the at least one spring disposed in a fixed chassis and associated with a first element of the epicyclic gear train;
- the first element of the epicyclic gear train being one of sun wheel, the outer crown wheel and the planet gear carrier;
- one of the flywheels being connected to the sun wheel and the other of the flywheels being connected to the outer crown wheel;
- the planet gear carrier being retained on the fixed chassis by the at least one spring.
A double-flywheel damper including:
- a torsion damper including at least one spring and an epicyclic gear train;
- primary and secondary flywheels rotatable about the same axis and connected by the torsion damper;
- and
- a pre-damper (16) mounted between the primary flywheel and an element of the epicyclic gear train connected to the primary flywheel;
- the epicyclic gear train including a sun wheel, an outer crown wheel and a planet gear carrier having planet gears meshing with the sun wheel and the outer crown wheel;
- the at least one spring disposed in a fixed chassis and associated with a first element of the epicyclic gear train;
- the first element of the epicyclic gear train being one of sun wheel, the outer crown wheel and the planet gear carrier.
A double-flywheel damper including:
- two flywheels rotatable about the same axis and connected by a torsion damper;
- the torsion damper including at least one spring and an epicyclic gear train;
- the epicyclic gear train including a sun wheel, an outer crown wheel and a planet gear carrier having planet gears meshing with the sun wheel and the outer crown wheel;
- the at least one spring disposed in a fixed chassis and associated with a first element of the epicyclic gear train;
- the first element of the epicyclic gear train being one of sun wheel, the outer crown wheel and the planet gear carrier;
- the angular range of movement of the first element around the rotation axis being approximately 120° to either side of a rest position.
Dependencies are inferred from the claim text.