Compact six speed power transmission
US6422968B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2001 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Jan 22, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/201
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A powertrain has a multi-ratio power transmission having three axially aligned simple planetary gear sets each of which has a sun gear member, a ring gear member and a planet carrier assembly member. The planetary gear sets are connected between an input shaft and an output shaft by a plurality of radially extending hubs at least four of which are connected with axially extending sleeves. The hubs are disposed axially between the planetary gear sets. The sleeves are disposed radially outboard of the planetary gear sets and are operatively connected with a plurality of torque transmitting mechanisms, also disposed radially outboard of said planetary gear sets, that are selectively operatively controlled to establish six forward drive ratios and one reverse drive ratio between the input shaft and the output shaft. The planet carrier assembly member of the first planetary gear set is continuously connected with the ring gear member of the third planetary gear set. The ring gear member of the first planetary gear set is continuously connected with the input shaft. The sun gear members of the second and third planetary gear sets are continuously interconnected as are the ring gear membe…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.