Five-speed power transmission
US5830102A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1997 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Jun 5, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H3/666
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multi-speed power transmission has five forward speeds and one reverse speed. The forward speeds consist of three underdrives, a direct drive and one overdrive. These speed ratios are produced with a simple planetary gearset, a compound planetary gearset, three input clutches, a combining clutch, a one-way clutch and two brake assemblies. Each of the brake assemblies incorporates a friction brake and a one-way brake. The combining clutch is disengaged in the low forward and reverse ratios and is engaged to connect the ring gears of the compound set with the carrier of the simple set. The one-way clutch is disposed between the ring gears of both sets to transmit rotation therebetween in an active capacity in the low forward ratio and no load capacity in the reverse ratio. In the second through fifth forward speeds, the one-way clutch permits relative rotation between the ring gears. The ring gear of the simple planetary gearset is continuously connected with the output shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.