Electric wheel motor assembly
US7445067B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2006 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Jan 3, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/7072
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electric wheel motor assembly generally includes a planetary gearset having a sun gear, a ring gear and a planet carrier that rotatably supports a plurality of planet gears. A portion of a wheel spindle includes the ring gear that is maintained in a non-rotating condition. A first wheel bearing and a second wheel bearing rotatably support the planet carrier on the wheel spindle. The first wheel bearing defines a first plane that extends radially therefrom and the second wheel bearing defines a second plane that extends radially therefrom. An electric motor has a stator and a rotor. A portion of the rotor includes the sun gear. The sun gear has a plurality of gear teeth that are meshed with the planet gears. The sun gear is disposed between the first plane and the second plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.