| 发明名称 |
Helical compression spring for oil scraping piston ring |
| 摘要 |
<p>The spring (3) is comprised of a wire that is spirally wound and cleaned. An amorphous, wear-resistant graphite layer is at least partially formed on the spring through physical vapor deposition (PVD). The outer surface of the spring is chemically deburred so as to be bright and oxide-free.</p> |
| 申请公布号 |
EP1717493(A1) |
申请公布日期 |
2006.11.02 |
| 申请号 |
EP20060007463 |
申请日期 |
2006.04.24 |
| 申请人 |
FEDERAL-MOGUL BURSCHEID GMBH;INNOTEC FORSCHUNGS- UND ENTWICKLUNGS-GMBH |
发明人 |
BRILLERT, HANS-RAINER;MIELKE, PETER |
| 分类号 |
F16J9/06 |
主分类号 |
F16J9/06 |
| 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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