US 11,773,951 B1 · Continuously-variable transmission with oscillating racks

Abstract

Described herein is a continuously variable transmission (CVT) with oscillating racks. The CVT includes an input shaft and a plurality of cams that are coupled with the input shaft. The cams are configured to rotate with a rotation of the input shaft. The CVT also includes a plurality of racks that are coupled to respective cams. The racks are configured to oscillate with the rotation of the input shaft. The CVT further includes a plurality of pinions that are coupled to respective racks and a plurality of intermittent shafts that are coupled with respective pinions. The CVT also includes an output shaft that is coupled with the intermittent shafts. The output shaft is configured to rotate with a uniform rotation and a speed ratio relative to the rotation of the input shaft. Because the CVT does not use friction elements, many downsides of conventional CVTs may be mitigated.

Claims20

Dependent claims

A continuously-variable transmission (CVT) comprising:

an input shaft;
a plurality of cams coupled with the input shaft, the cams configured to rotate with a rotation of the input shaft;
a plurality of racks coupled to respective cams, the racks configured to oscillate with the rotation of the cams;
a plurality of pinions coupled to respective racks;
a plurality of intermittent shafts coupled with respective pinions;
a plurality of pinion one-way clutches between the pinions and the intermittent shafts;
a plurality of intermittent shaft one-way clutches between the intermittent shafts and a housing of the CVT;
and
an output shaft coupled with the intermittent shafts, the output shaft configured to rotate with a uniform rotation that has a variable speed relative to the input shaft.

6 more elements

Dependencies are inferred from the claim text.

Continuously-variable transmission with oscillating racks

Life of this patent

Continuously-variable transmission with oscillating racks

Life of this patent

Abstract

Claims20