Continuously variable transmission
First Claim
1. An axial force generator for a continuously variable transmission (CVT), comprising:
- a traction ring having a first side for contact with a plurality of spherical planets and a second side having a plurality of ramps;
a load cam roller retaining assembly for supporting a plurality of load cam rollers; and
an output cam ring having a first side having a plurality of ramps.
1 Assignment
0 Petitions
Accused Products
Abstract
Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a main axle is adapted to receive a carrier assembly to facilitate the support of components in a CVT. In another embodiment, a carrier includes a stator support member and a stator interfacial member. In some embodiments, the stator interfacial member is configured to interact with planet subassemblies of a CVT. Various inventive planet subassemblies and idler assemblies can be used to facilitate shifting the ratio of a CVT. In some embodiments, the planet subassemblies include legs configured to have a sliding interface with a carrier assembly. Embodiments of a hub shell, a hub cover are adapted to house components of a CVT and, in some embodiments, to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces and braking features for a CVT are disclosed.
668 Citations
13 Claims
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1. An axial force generator for a continuously variable transmission (CVT), comprising:
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a traction ring having a first side for contact with a plurality of spherical planets and a second side having a plurality of ramps; a load cam roller retaining assembly for supporting a plurality of load cam rollers; and an output cam ring having a first side having a plurality of ramps. - View Dependent Claims (2, 3, 4, 5)
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6. An axial force generation system comprising:
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an input axial force generator comprising a load cam ring for receiving power into the CVT, the load cam ring having a first plurality of ramps, a load cam roller retaining assembly for supporting a first plurality of load cam rollers, and a first traction ring having a first side for contact with a plurality of spherical planets and a second side having a second plurality of ramps; and an output axial force generator comprising a second traction ring positioned on an opposite side of the plurality of spherical planets, the second traction ring having a first side for contact with the plurality of spherical planets and a second side having a third plurality of ramps, a load cam roller retaining assembly for supporting a second plurality of load cam rollers, and an output cam ring having a first side having a fourth plurality of ramps. - View Dependent Claims (7, 8)
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9. A method for assembling an axial force generator for a continuously variable transmission (CVT), comprising:
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positioning a first traction ring on a first side of a plurality of spherical planets, the first traction ring having a first plurality of ramps oriented at a first angle; positioning a second traction ring on a second side of the plurality of traction planets opposite the first traction ring, the second traction ring having a second plurality of ramps oriented at a second angle; positioning a first load cam roller retaining assembly having a first plurality of load cam rollers in contact with the first plurality of ramps on the first traction ring; positioning a load cam ring for receiving power in to the CVT, the load cam ring having a third plurality of ramps oriented at a third angle; positioning a second load cam roller retaining assembly having a second plurality of load cam rollers in contact with the second plurality of ramps on the second traction ring; and positioning an output cam ring for transmitting power out of the CVT, the output cam ring having a fourth plurality of ramps oriented at a fourth angle. - View Dependent Claims (10, 11, 12, 13)
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Specification