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US 9,709,168 B2Granted
Power density of a reversible variable transmission—RVT
AssigneeMazaro NV
InventorFilip De Mazière
Life of this patent
Estimating the term…
Abstract
The invention provides design modifications to increase the power density of a reversible variable transmission system for vehicles such as cars, buses, trucks, off-road vehicles, lift trucks, telescopic boom handlers and the like. The transmission can also be used in systems such as windmills etc. and other industrial applications that require power to be transferred at variable speeds.
Claims9
A planetary variator, functioning as a subsystem for a variable or reversible transmission comprising
- a ring wheel,
- two or more planets mounted around a central shaft, and
- a sun wheel, such that the ring wheel, the central shaft and the sun wheel form an interface with other transmission components, wherein each planet comprises
- a planet wheel running on a running surface of said sun or ring wheel, and
- a planet fork connecting the planet to said central shaft, characterized in that
- a continuous or a discontinuous control system is integrated in the assembly of each of the planets to ensure that the tip of a cone formed by the theoretical, non-crowned, planet wheel running surface coincides precisely with a hinge axis of the planet fork
- when a certain load is applied on the running surface, by locking the position of the planets on the central shaft using a screwing system integrated within the planet fork.
4 more elements
Dependencies are inferred from the claim text.