Vehicle drive apparatus
US8888650B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 22, 2011 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Aug 20, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19684
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vehicle drive apparatus includes a motor generator, a speed reduction mechanism connected to a rotor shaft of the motor generator, an output shaft connected to the speed reduction mechanism, an intermediate wall separating the motor generator from the speed reduction mechanism, and a bearing that is fixed to the intermediate wall and supports the rotor shaft. The motor generator, intermediate wall, speed reduction mechanism, and output shaft are disposed in this order, and a ring gear of the speed reduction mechanism is fixed. The ring gear is fixed to the intermediate wall via a ring gear flange that is positioned relative and fixed to the intermediate wall by a centering mechanism and a locking mechanism. The centering mechanism is formed by fitting a boss of the ring gear flange and the intermediate wall. The locking mechanism is disposed on an outer peripheral side relative to the centering mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.