Multiple-step transmission
US7118509B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2004 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Sep 11, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2097
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multiple-step transmission including a first transmission portion including a first intermediate output path which transmits, at a first speed ratio, an input rotary motion of an input member, and a second intermediate output path which transmits the input rotary motion at a second speed ratio greater than the first speed ratio; and a second transmission portion including a 2-1, a 2-2, and a 2-3 planetary gear set each of which includes a sun gear, a carrier, and a ring gear, the 2-1, 2-2, and 2-3 planetary gear sets being partly connected to each other to provide a first, a second, a third, a fourth, and a fifth rotary element, the second transmission portion further including a first brake which selectively stops a rotary motion of the first rotary element, a second brake which selectively stops a rotary motion of the second rotary element, a first clutch which selectively connects the fifth rotary element to the second intermediate output path of the first transmission portion, a second clutch which selectively connects the first rotary element to the second intermediate output path, a third clutch which selectively connects the second rotary element to the first intermediate …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.