发明名称 SYSTEM AND METHODS FOR PURGING RESIDUAL EXHAUST AND UNCOMBUSTED FUEL TO A FUEL VAPOR CANISTER
摘要 A method for an engine is presented, comprising, following an engine-off event, positioning a first engine cylinder with an intake valve open, opening a canister purge valve; and purging contents of the first engine cylinder to a fuel vapor canister. In this way, uncombusted fuel that may otherwise be emitted from the engine during a prolonged diurnal soak may be stored within the fuel vapor canister, thus decreasing overall vehicle emissions.
申请公布号 US2016215711(A1) 申请公布日期 2016.07.28
申请号 US201514606779 申请日期 2015.01.27
申请人 Ford Global Technologies, LLC 发明人 Dudar Aed M.
分类号 F02D41/00;B60W20/00;F02D41/26;F02M25/08;F02D41/24 主分类号 F02D41/00
代理机构 代理人
主权项 1. A method for an engine, comprising: following an engine-off event, positioning a first engine cylinder with an intake valve open; opening a canister purge valve; and purging contents of the first engine cylinder to a fuel vapor canister.
地址 Dearborn MI US