Aluminum foam core piston with coaxial laser bonded aerogel/ceramic head
US10544752B2 · kind B2 · utility
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5References
20Claims
0Family size
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Key dates
| Filing date | Jul 14, 2017 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Dec 14, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2253/14
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An insulated composite piston head that includes three or more layers is formed and used in a combustion engine. The first layer is an aluminum or aluminum alloy foam core. The second layer is a metal layer that at least partially encapsulates the foam core; wherein the metal layer is selected to be aluminum or an aluminum alloy. The third layer is a layer of an insulating material located on at least one surface of the metal layer. The deposition of the insulating layer is accomplished via the use of a coaxial laser process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.