Continuously variable transmission
First Claim
1. A ring for transmitting torque in a continuously variable transmission (CVT), the ring comprising:
- a contact surface engaging a plurality of balls of the CVT, the contact surface having a flat profile;
a splined bore adapted to transfer torque;
an annular body connecting the contact surface to the splined bore, the annular body having an inner, an outer circumference, a front surface and a back surface, the back surface located on an opposite surface with respect to the front surface;
an oil port formed on the annular body;
wherein the back surface comprises a plurality of ramps inclined at an angle, the ramps arranged to contact a plurality of cam rollers of the CVT;
wherein the contact surface is arranged at a distal location relative to the splined bore, the contact surface in proximity to the outer circumference of the annular body; and
wherein the splined bore is located on the inner circumference of the annular body.
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Accused Products
Abstract
A continuously variable transmission (CVT) having a main shaft configured to support and position various components of the CVT. Shift cam discs cooperate with ball-leg assemblies to shift the transmission ration of the CVT. Load cam discs, a torsion disc, rolling elements, and a hub cap shell are configured to generate axial force, transmit torque, and manage reaction forces. In one embodiment, a splined input shaft and a torsion disc having a splined bore cooperate to input torque into the variator of the CVT. Among other things, various ball axles, axle-ball combinations, and reaction force grounding configurations are disclosed. In one embodiment, a CVT having axial force generation means at both the input and output elements is disclosed.
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Citations
7 Claims
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1. A ring for transmitting torque in a continuously variable transmission (CVT), the ring comprising:
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a contact surface engaging a plurality of balls of the CVT, the contact surface having a flat profile; a splined bore adapted to transfer torque; an annular body connecting the contact surface to the splined bore, the annular body having an inner, an outer circumference, a front surface and a back surface, the back surface located on an opposite surface with respect to the front surface; an oil port formed on the annular body; wherein the back surface comprises a plurality of ramps inclined at an angle, the ramps arranged to contact a plurality of cam rollers of the CVT; wherein the contact surface is arranged at a distal location relative to the splined bore, the contact surface in proximity to the outer circumference of the annular body; and wherein the splined bore is located on the inner circumference of the annular body. - View Dependent Claims (2, 3, 4)
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5. A torque transmission system for a continuously variable transmission CVT, the torque transmission system comprising:
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a ring comprising; a contact surface engaging to a plurality of balls of the CVT, the contact surface having a flat profile; a splined bore adapted to transfer torque; an annular body connecting the contact surface to the splined bore, the annular body having an inner and an outer circumference; an oil port formed on the annular body; wherein the annular body comprises a plurality of ramps, the ramps arranged on a surface opposite of the contact surface, wherein the ramps incline from the surface at an angle, the ramps arranged to contact a plurality of cam rollers of the CVT; wherein the contact surface is arranged at a distal location relative to the splined bore, the contact surface in proximity to the outer circumference of the annular body; wherein the splined bore is located on the inner circumference of the annular body; and a ring driver having a plurality of splines configured to mate with the splined bore. - View Dependent Claims (6, 7)
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Specification