Cylinder liner and cylinder liner-piston assembly for abnormal combustion protection in an engine
US11002216B1 · kind B1 · utility
2Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2020 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Feb 28, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F3/28
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine includes a cylinder liner and a piston movable within the cylinder liner, a crevice formed between a top land of the piston and the cylinder liner, and an oil entry clearance formed between a top ring of the piston and the cylinder liner. The engine also includes an abnormal combustion inhibitor having an oil recapture surface exposed to the crevice and oriented to limit migration of oil from the crevice toward a combustion chamber in the engine. The abnormal combustion inhibitor includes a groove structure having as a substrate at least one of the cylinder liner or the piston. Related methodology is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.