Electrically assisted turbocharger
US9470231B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2012 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Mar 22, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electrically assisted turbocharger (1) comprising a housing (3) and an electric motor stator (22) disposed in the housing (3). The stator (22) includes a pair of o-rings, or other circumferential seals (204, 208), disposed therearound. The o-rings (204, 208) are operative to seal against an interior of the housing (3) to form an annular chamber (130) around at least a portion of the stator (22) and a pair of end cavities (122, 126) at the axial ends of the stator (22). The annular chamber (130) is adapted to allow the circulation of a cooling fluid around the stator (22). A pair of bearings (10, 12) may be disposed in the housing (3), one on each side of the stator (22). A shaft (7) is supported in the housing (3) by the bearings (10, 12). The shaft (7) in turn supports a turbine wheel (5) and a compressor wheel. An electric motor rotor (24) is disposed on the shaft (7) between the bearings (10, 12) and inside the stator (22).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.