Piston and engine system using same
US12146452B1 · kind B1 · utility
0Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2023 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Jul 13, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F3/28
- 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. The piston crown includes a combustion face forming a piston rim extending circumferentially around a piston center axis, and a combustion bowl. The combustion face further forms a bowl edge defining an intersection of the combustion bowl and the piston rim, and includes a reentrant surface extending between the bowl edge and a bowl outer wall. A ratio of a bowl max dimension to a bowl opening dimension is from about 1.10 to about 1.15.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.