Low compression natural gas engine piston bowl for improved combustion stability
US12264636B2 · kind B2 · utility
0Cited by
13References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2023 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Nov 16, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A piston may have an annular body including a crown portion defining a longitudinal axis, a radial direction perpendicular to the longitudinal axis, a plane containing the longitudinal axis and the radial direction, and a contoured combustion bowl. In the plane containing the longitudinal axis and the radial direction, the crown portion includes a radially outer squish surface, and a swirl pocket having a reentrant surface that extends axially downwardly and radially outwardly from the squish surface defining a tangent that forms a reentrant angle with the squish surface that ranges from 53.0 degrees to 57.0 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.