Hybrid-vehicle drive unit
US6777837B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 12, 2001 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Sep 12, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/952
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hybrid-vehicle drive unit supports a motor-generator with high precision, improving the efficiency of the motor-generator, and reducing the size of the motor-generator, independent of any influence of centering precision of the crank shaft and of deformation of the torque converter. According to the invention, a motor housing is disposed between a converter housing and an internal combustion engine, and a bearing is fitted to a lateral wall provided in a front portion of the motor housing. Rotor supporting members are independently supported by the bearing. Eccentric rotation of the crank shaft resulting from explosive vibrations of the engine is counteracted by two flex plates. Owing to a predetermined clearance, one of the rotor supporting members as a separate component is free from the influence of deformation of the torque converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.