Patent ID: 6105561
Filing Date: 2000-08-22
Classification: F02D,Y02T

Abstract:
Fuel feeding system for internal combustion engine adapted to be operated selectively with gasoline or a gas comprising:gasoline feeding means, including a plurality of injectors associated with cylinders of the engine, andelectronic control means controlling the gasoline injectors, adapted to receiving signals indicative of various parameters of operation of the engine as well as to controlling the gasoline injectors accordingly, andgas feeding means, including:a plurality of gas injectors associated with the engine cylinders,a gas feeding manifold or rail for feeding said injectors,a gas reservoir,conduit means for feeding gas from the reservoir to said rail,sensor means for sensing the gas level in the reservoir,said electronic control means being adapted to control switching between a gasoline operation mode and a gas operation mode and being further adapted to controlling the gas injectors in the gas operation mode,said electronic control means being further adapted to compel the engine to restart in the gasoline mode after a stop,wherein said electronic control means are adapted to compelling the engine to restart in the gasoline mode after a stop only if said sensor means detect a raise of the gas level in reservoir during the stop by a value greater than a predetermined threshold value.