Control of fuel vapor processing device

专利名称：Control of fuel vapor processing device发明人：Akihiro Kawano,Masaya Furushou申请号：US10459444申请日：20030612公开号：US06814063B2公开日：20041109

专利附图：

摘要：Fuel vapor from a fuel tank () of an engine () is adsorbed by a canister () via afirst passage (). The canister () comprises an air vent () which communicates with theatmosphere. The canister () communicates with an intake passage () of the engine () via asecond passage () provided with a purge valve (). When the air vent () and purge valve ()

are opened, the adsorbed fuel in the canister () is purged to the intake passage () due tothe intake negative pressure of the engine (). If the negative pressure of the secondpassage () becomes stronger than a reference negative pressure during purging, thepurge valve () is throttled to prevent an excessive negative pressure from acting on thefuel tank ().

申请人：NISSAN MOTOR

代理机构：Foley & Lardner LLP

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