Rotary assist apparatus for recirculating ball steering gears
US11827290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2020 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Jun 13, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D6/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Rotary assist apparatus for recirculating ball steering gears are disclosed. An example motor vehicle steering system includes an input shaft to couple to a steering shaft of a motor vehicle, a worm gear, a first end of the worm gear coupled to the input shaft, a second end of the worm gear fixed to a helical spur gear, a ball nut surrounding a portion of the worm gear, the ball nut including ball bearings and ball guides, an intermediate gear fixed to a first pinion, the first pinion engaged with the helical spur gear, a motor fixed to a second pinion, the second pinion engaged with the intermediate gear, the motor to rotate the worm gear to translate the ball nut, and a sector gear engaged with the ball nut, the sector gear to rotate as the ball nut translates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.