Four-speed automatic transmission
US5800303A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Dec 9, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/0043
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A four-speed automatic transmission for a vehicle includes a transmission housing, an input member, an output member, three planetary gearsets for changing a ratio of torque between the input member and the output member, a plurality of clutch assemblies to selectively couple the input member to predetermined gears of the planetary gearsets, a plurality of brake assemblies to selectively couple predetermined gears of the planetary gearsets to the transmission housing, and a structure for allowing the output member and a planetary carrier from one of the planetary gearsets and an annulus gear of another of the planetary gearsets to rotate simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.