Low emission fuel efficient diesel locomotive engine including a piston having a toroidal surface
US7025031B2 · kind B2 · utility
10Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2002 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Apr 27, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A diesel locomotive engine having a piston with a unique bowl geometry. The bowl is defined in part by a center portion having a partial spherical shape. A cone portion (22) is located adjacent the central portion. An annular toroidal surface (24) is connected to the cone portion (22) and is defined by a toroidal major diameter (Dtm) and a toroidal minor radius (Rtm). A crown rim (26) is connected to the annular toroidal surface (24) and to an upper flat rim face of a sidewall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.