Speed change gear system
US3956946A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1974 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Oct 11, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2046
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A speed change gear system of the planetary gear type suited for applications within fluid couplings used upon automotive vehicles includes an input shaft and a first planetary gear set which includes a first sun gear, a first planetary gear engaged with the first sun gear, a first ring gear engaged with the first planetary gear, and a first carrier rotatably supporting the first planetary gear. A second planetary gear set similarly includes a second ring gear drivingly connected to the first carrier, a second planetary gear engaged with the second ring gear, a second sun gear engaged with the second planetary gear, and a second carrier rotatably supporting the second planetary gear, while a third planetary gear set likewise includes a third sun gear drivingly connected to the second sun gear, a third planetary gear engaged with the third sun gear, a third ring gear engaged with the third planetary gear and drivingly connected to the first ring gear and the second carrier, and a third carrier rotatably supporting the third planetary gear. A first clutch is provided for simultaneously coupling or uncoupling the second and third sun gears to or from the input shaft while a second clu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.