Four planetary-gearset step-ratio automatic transmission
US10247280B2 · kind B2 · utility
10Cited by
25References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 2014 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Mar 6, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2097
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A four gearing-arrangement transmission having six shift-elements cooperatively engaging in combinations of three to provide nine forward speeds and one reverse speed. The transmission having a first gearing-arrangement with an end-gear fixedly coupled to a ground. A second gearing-arrangement with one end-gear fixedly coupled to an input and the other end-gear fixedly coupled to an interior-gear of the first gearing-arrangement. A third gearing-arrangement having an interior-gear fixedly coupled to an output. A fourth gearing-arrangement having a fourth interior-gear fixedly coupled to the input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.