| 发明名称 | Vehicle wheel bearing | ||
| 摘要 | A wheel bearing unit for use with a drum brake including an outer ring and an inner ring. The drum brake having a brake drum and a tie plate. A rotational speed measurement unit having a sensor and a transmitter ring is located in a transmitter chamber defined by the wheel bearing and the back plate. A ventilation duct connects the transmitter chamber to an inner space of the drum brake. | ||
| 申请公布号 | US9217474(B2) | 申请公布日期 | 2015.12.22 |
| 申请号 | US201414157060 | 申请日期 | 2014.01.16 |
| 申请人 | Ford Global Technologies, LLC | 发明人 | Fritzsche Ralf |
| 分类号 | F16C41/00;F16C37/00 | 主分类号 | F16C41/00 |
| 代理机构 | Burgess Law Office, PLLC | 代理人 | Burgess Law Office, PLLC ;Copiellie Raymond I. |
| 主权项 | 1. A wheel bearing unit comprising: a wheel bearing having an outer ring and an inner ring; a drum brake having a tie plate and a brake drum and an inner space disposed between said brake drum and said outer ring of said wheel bearing; a rotational speed measurement unit having a sensor and a transmitter ring, said transmitter ring disposed in a transmitter chamber defined by said wheel bearing and said tie plate; wherein said transmitter chamber is connected to said inner space of said drum brake by a ventilation duct. | ||
| 地址 | Dearborn MI US | ||