Patent ID: 7469684
Filing Date: 2008-12-30
Classification: F02B,F02M

Abstract:
1. A system for a vehicle, comprising: an engine; an air intake passage coupled to the engine; an exhaust passage coupled to the engine; a fuel vapor storage system fluidly coupled with the air intake passage and the exhaust passage, said fuel vapor storage system configured to store and release fuel vapors, the fuel vapor storage system being fluidly coupled with the air intake passage via a fuel vapor purging passage; a fuel storage tank having an ullage space that is fluidly coupled with the fuel vapor purging passage between the fuel vapor storage system and the air intake passage; and a control system configured to: during a first mode, route exhaust gas from the engine to the fuel vapor storage system via at least the exhaust passage; and during a second mode, route at least fresh air to the fuel vapor storage system to release fuel vapors from the fuel vapor storage system before being inducted into the engine via the air intake passage to be burned.