Piston optimized for combustion flame speed and compression ratio in engine system
US12037961B1 · kind B1 · utility
0Cited by
8References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 13, 2023 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Jul 13, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B23/0636
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A piston for an internal combustion engine includes a piston skirt and a piston crown attached to the piston skirt and including a combustion face. The combustion face forms a piston rim and a combustion bowl. A bowl edge defines an intersection of the combustion bowl and the piston rim, and a reentrant surface defining a reentrancy angle extends between the bowl edge and a bowl outer wall. A ratio of a bowl depth dimension coincident with the piston center axis to a compression height dimension coincident with the piston center axis is from about 0.30 to about 0.35.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.