Planetary roller screw mechanism
US10781900B2 · kind B2 · utility
1Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2014 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Nov 13, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H25/14
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A planetary roller screw mechanism includes a screw shaft provided with at least one external thread, a nut provided with at least three internal threads and at least three rollers arranged, radially with respect to a central axis of the screw shaft, between the screw shaft and the nut. Each roller is provided with at least two external threads. The number of external threads of the screw shaft is a multiple of the number of external threads of a roller. The number of internal threads of the nut is a multiple of the number of external threads of a roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.