| 发明名称 | Method for producing a built hollow valve | ||
| 摘要 | A method for producing a hollow valve of an internal combustion engine may include providing a hollow valve stem, a valve cone, and a valve bottom; pushing the valve cone over the valve stem via a press fit, wherein the valve cone includes an outer surface transitioning to the valve stem to define a testing surface; and welding the valve cone to the valve stem via at least one of a laser beam and an electron beam, wherein the welding occurs such that no melting of the outer surface in the region of the testing surface of the valve cone occurs. | ||
| 申请公布号 | US9382820(B2) | 申请公布日期 | 2016.07.05 |
| 申请号 | US201414300938 | 申请日期 | 2014.06.10 |
| 申请人 | Mahle International GmbH | 发明人 | Kroos Peter;Luven Christoph;Mueller Alexander;Puck Alexander |
| 分类号 | B23K26/28;F01L3/20;B23P15/00;B23K15/00;B23K26/08;B23K31/12;F01L3/12 | 主分类号 | B23K26/28 |
| 代理机构 | Fishman Stewart PLLC | 代理人 | Fishman Stewart PLLC |
| 主权项 | 1. A method for producing a hollow valve of an internal combustion engine, comprising: providing a hollow valve stem having a longitudinal center axis, a valve cone and a valve bottom, pushing the valve cone over the valve stem via a press fit connection between an outer diameter of the valve stem and an inner diameter of the valve cone, wherein the valve cone includes an outer surface disposed radially outside of the press fit connection in relation to the longitudinal center axis, the outer surface transitioning to the valve stem to define a testing surface, and welding the valve cone to the valve stem at the press fit connection via at least one of a laser beam and an electron beam, wherein the welding forms a weld seam between the outer diameter of the valve stem and the inner diameter of the valve cone without melting the outer surface of the valve cone in a region of the testing surface. | ||
| 地址 | DE | ||