| 发明名称 | Engine cooling system motor driven vacuum pump | ||
| 摘要 | Embodiments for monitoring fuel system degradation are provided. In one example, a method comprises driving a cooling fan with an electric motor in a vehicle, and during selected conditions, also driving a vacuum pump with the electric motor through a clutch. In this way, fuel system degradation may be indicated without use of a separate motor to drive a pressure building device. | ||
| 申请公布号 | US9309840(B2) | 申请公布日期 | 2016.04.12 |
| 申请号 | US201213633804 | 申请日期 | 2012.10.02 |
| 申请人 | Ford Global Technologies, LLC | 发明人 | Jentz Robert Roy;Dudar Aed M. |
| 分类号 | F02M25/08;F02M65/00 | 主分类号 | F02M25/08 |
| 代理机构 | Alleman Hall McCoy Russell & Tuttle LLP | 代理人 | Dottavio James;Alleman Hall McCoy Russell & Tuttle LLP |
| 主权项 | 1. A method, comprising: driving a cooling fan with an electric motor in a vehicle; and during selected conditions, also driving a vacuum pump with the electric motor through a clutch, the selected conditions comprising performing a fuel system leak detection test on a fuel system of the vehicle. | ||
| 地址 | Dearborn MI US | ||