Planetary gear carrier with compliance
US10605332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2017 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Jun 21, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2057/127
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A planetary gear assembly (30) and method of assembly in an electric camshaft phaser (20) with a split ring gear including a drive-side ring gear portion (32) rotatable by an engine crankshaft and an output-side ring gear portion (34) that can be connected to a camshaft (22). A plurality of rotatable planetary gears (36a, 36b, 36c) can be interposed between the split ring gear and the sun gear (28). The output-side ring gear portion (34) can have a different number of teeth than the drive-side ring gear portion (32) by a value corresponding to a multiple of the number of planetary gears (36a, 36b, 36c). A compliant planetary gear carrier (40, 140) can support the plurality of planetary gears (36a, 36b, 36c) allowing variance of a normally equidistant distance between separate spaced rotational axes of at least two of the planetary gears (36a, 36b, 36c) to selectively compensate for mechanical tolerances of the drive-side ring gear portion (32) and the output-side ring gear portion (34) of the split ring gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.