| 发明名称 | Engine cylinder head provided with light valve spring bosses | ||
| 摘要 | A cylinder head for an internal combustion engine is provided which include a valve spring boss having a central opening for accommodating a valve and having a contact area for retaining said valve. The contact area has a first portion and a second portion. The first portion being ring-shaped and delimited by the opening, and the second portion being radially protruding from the first portion. | ||
| 申请公布号 | US9169799(B2) | 申请公布日期 | 2015.10.27 |
| 申请号 | US201414196910 | 申请日期 | 2014.03.04 |
| 申请人 | GM GLOBAL TECHNOLOGY OPERATIONS LLC | 发明人 | Seeger Peter |
| 分类号 | F02F1/42;F01L1/46;F01L3/10 | 主分类号 | F02F1/42 |
| 代理机构 | Ingrassia Fisher & Lorenz PC | 代理人 | Ingrassia Fisher & Lorenz PC |
| 主权项 | 1. A cylinder head for an internal combustion engine comprising: a valve spring boss having a central opening for accommodating a valve and having a contact area for retaining said valve; wherein the contact area comprises: a first ring-shaped portion delimited by the central opening; anda second portion, comprising a plurality of protrusions radially protruding from the first portion; and wherein the first ring-shaped portion and the second portion comprise coplanar portions of the contact area. | ||
| 地址 | Detroit MI US | ||