| 发明名称 | Camshaft for an internal combustion engine | ||
| 摘要 | The present invention relates to a camshaft (1) for an internal combustion engine with a drive wheel (4) arranged on a longitudinal end side, in particular with a chain wheel or belt pulley, and with at least one first bearing (2) arranged in the region of the drive wheel (4) and a second bearing (3) arranged in the further course of the camshaft (1). Here it is substantial to the invention that at least the first bearing (2) is designed as a rolling bearing and has an inner diameter of 24 mm<di<30 mm, wherein the inner diameter di is larger than the outer diameter da of the camshaft (1) on the second bearing (3).;Because of this, the camshaft (1) can be configured more compact and lighter. | ||
| 申请公布号 | US9574464(B2) | 申请公布日期 | 2017.02.21 |
| 申请号 | US201314037994 | 申请日期 | 2013.09.26 |
| 申请人 | Mahle International GmbH | 发明人 | Flender Thomas;Kreisig Michael;Schneider Falk |
| 分类号 | F01L1/14;F01L1/34;F01L1/047 | 主分类号 | F01L1/14 |
| 代理机构 | Fishman Stewart PLLC | 代理人 | Fishman Stewart PLLC |
| 主权项 | 1. A camshaft for an internal combustion engine comprising: a drive wheel arranged on a longitudinal end side and including at least one of a chain wheel and belt pulley, at least one first bearing arranged proximate to the drive wheel on a localized radially enlarged region and at least one second bearing supporting the camshaft at a further region, wherein the at least one first bearing includes a rolling bearing having an inner diameter of 24 mm<di<30 mm, and wherein the inner diameter di is larger than an outer diameter da of the camshaft at the further region adjacent the at least one second bearing, and wherein the outer diameter da of the camshaft at least in the region of the at least one second bearing is 18 mm<da<24 mm, wherein the localized radially enlarged region is an expanded region of the camshaft on the longitudinal end side having the drive wheel disposed between an axial end face of the camshaft and the at least one second bearing, and wherein the at least one first bearing is arranged on the expanded region, or wherein the localized radially enlarged region includes a sleeve arranged on the longitudinal end side between an axial end face of the camshaft and the at least one second bearing, wherein the at least one first bearing including the rolling bearing has an inner ring mounted on the sleeve. | ||
| 地址 | DE | ||