Oil cooled generator for trailer refrigeration unit
US8276396B2 · kind B2 · utility
9Cited by
26References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2006 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Aug 6, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/1815
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A transport refrigeration unit includes an integrally mounted unitary engine driven generator wherein the generator is cooled by the circulation of oil over the stator coils and the rotor to thereby provide a cooling system that is closed from the outside environment and capable of increased cooling efficiencies. In one embodiment, the circulation of the engine oil is integrated into the generator such that its serves the dual purpose of cooling the generator. In other embodiments, the oil is contained entirely within the generator and is circulated by various means such as by a pump and spray, a slinger or total immersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.