| 摘要 |
<p>An engine management system for an internal combustion engine for an automobile includes an architecture (10) for a super ultra low evaporative emission capability. In the present architecture (10), the fuel rail (20) and injectors (22) are located within the intake manifold (30) such that permeating and evaporative emissions are contained within the intake manifold (30) and a sealing throttle body (24) and/or shut-off check valve (42) is located between the air cleaner/induction components and the throttle body (24) prevent hydrocarbon emissions from reaching the atmosphere. Additionally, a shut-off valve (50) and/or programmable valve train (60) are included to prevent hydrocarbons from the PCV valve (32) and fresh air supply line from being vented to atmosphere. A one way check valve (44) is located between the air induction and cleaner (40) and the PCV fresh air supply (46) such that hydrocarbons that are produced within the intake manifold (30) may pass into the PCV fresh air supply line.</p> |
