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AssigneeHitachi, Ltd.
InventorsFrank Warren Hunt, Shigeru Oho, Ayumu Miyajima
Estimating the term…
A system for the management of fuel and fuel vapors in the cold start fuel passageway of an internal combustion engine which has a cold start fuel injector which, when activated, introduces fuel into the cold start fuel passageway. The system includes an engine control unit (ECU) which determines the probability of fuel within the cold start passageway. Different procedures programmed in the ECU are then utilized to dissipate the fuel from the cold start passageway. These procedures include delaying the initiation of the spark ignition for the engine, maintaining the heater associated with the cold start fuel injector activated for a period of time following deactivation of the cold start fuel injector, maintaining revolution of the internal combustion engine for a predetermined time period, as well as other strategies.
For use in conjunction with an internal combustion engine having a cold start fuel injector which, when activated, introduces fuel to the engine through a cold start fuel passageway during a cold engine condition, a system for management of fuel in the cold start fuel passageway comprising:
A fuel management system for an internal combustion engine comprising:
For use in conjunction with an internal combustion engine having multipoint injection normally operable to supply fuel to the engine during a warm engine operating condition, an engine control circuit, a cold start fuel injector which, when activated by said engine control circuit, injects fuel into a cold start passageway, an electrically powered heater in the cold start passageway to facilitate vaporization of liquid fuel, a method for improved engine performance comprising the steps of:
Dependencies are inferred from the claim text.