| 发明名称 |
Evaporative emission control |
| 摘要 |
A method for operating a fuel system is disclosed. The method includes sequentially purging fuel vapors from each of a plurality of regions of a canister. Purging a region includes opening an air inlet valve associated with that region and maintaining air inlet valves associated with each other region closed to direct fuel vapors to at least one purge outlet. |
| 申请公布号 |
US8919327(B2) |
申请公布日期 |
2014.12.30 |
| 申请号 |
US201213466528 |
申请日期 |
2012.05.08 |
| 申请人 |
|
发明人 |
Pearce Russell Randall;Kragh Niels Christopher;Bohr Scott A.;Bunge Mark;Peters Mark W. |
| 分类号 |
F02M33/04;F02D41/00;F02M33/00 |
主分类号 |
F02M33/04 |
| 代理机构 |
Alleman Hall McCoy Russell & Tuttle LLP |
代理人 |
Voutyras Julia;Alleman Hall McCoy Russell & Tuttle LLP |
| 主权项 |
1. A method for operating a fuel system comprising:
sequentially purging fuel vapors from each of four regions of a canister, where purging a region includes opening an air inlet valve associated with each region and maintaining air inlet valves associated with each other region closed to direct fuel vapors to at least one purge outlet, where two pairs of air inlet valves are located on opposing sides of the canister. |
| 地址 |
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