Machine having electrical power system and centered drive coupling for same
US8387729B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2011 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Sep 1, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49947
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A machine, such as an electrically powered track type tractor, includes an engine configured to rotate a generator. A drive coupling has a first element fixed to rotate with the engine and a second element fixed to rotate with the generator. The first and second elements are configured to rotationally couple together for transmitting torque from the engine to the generator, but configured to allow relative slip between the first and second elements. The relative slip may occur during engine start up as rotational rates pass through a range associated with the excitation of resonance torsional vibrations. A centering ring has a radial outer surface in contact with the first element and a radial inner surface in contact with the second element. The centering ring assists in avoiding an off center drive coupling arrangement while electrically isolating the first element from the second element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.