发明名称 |
PISTON WITH A COOLING GALLERY PARTIALLY FILLED WITH A THERMALLY CONDUCTIVE METAL-CONTAINING COMPOSITION |
摘要 |
A piston for an internal combustion engine comprises a sealed cooling gallery extending circumferentially around a center axis beneath a bowl rim of an upper crown. A metal-containing composition having a high thermal conductivity fills a portion of the sealed cooling gallery to dissipate heat. The metal-containing composition includes a base material having a melting temperature less than 181° C. and a plurality of metal particles having a thermal conductivity greater than the thermal conductivity of the base material. For example, the metal-containing composition can comprise copper particles dispersed in silicone oil, or copper particles dispersed in a mixture of alkali metals. During high temperature operation, as the piston reciprocates in the cylinder bore, the base material is liquid and flows throughout the cooling gallery to dissipate heat away from the upper and lower crowns. |
申请公布号 |
EP2914834(A1) |
申请公布日期 |
2015.09.09 |
申请号 |
EP20130789466 |
申请日期 |
2013.11.04 |
申请人 |
FEDERAL-MOGUL CORPORATION |
发明人 |
LINETON, WARRAN, BOYD;AZEVEDO, MIGUEL |
分类号 |
F02F3/18 |
主分类号 |
F02F3/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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