Additive means for an air compressing internal combustion engine
AssigneeDaimler-Benz Aktiengesellschaft
InventorsJorg Abthoff, Hans-Dieter Schuster, Hans-Joachim Langer, Marijan Laszlo
Life of this patent
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Abstract
An arrangement for supplying an additive to a fuel-injected air compressing internal combustion engine. The arrangement includes a feeding device arranged at an inlet or intake of the internal combustion engine and a load and/or speed dependent metering device is provided which controls the supply of the additive to the feeding device.
Claims10
An arrangement for supplying an additive to a fuel-injected air compressing internal combustion engine, characterized in that means are arranged at an intake means of the internal combustion engine for feeding the additive into the intake means, and in that means are provided for metering a supply of the additive to the feeding means in response to at least one of a load or rotational speed of the engine, the metering means includes an electrical magnetic valve means operatively connected with the feeding means, the feeding means includes a nozzle needle means for controlling a flow of the additive through the feeding means, means are provided for controlling an opening and closing timing ratio of the electromagnetic valve means in response to signals representing the load of the engine, and in that said electromagnetic valve means is adapted to initially release a volume of the additive as a function of the load of the engine, with an actual volume of the additive being governed as a function of an air velocity at the nozzle needle means of the feeding means.
An arrangement for supplying an additive to a fuel-injected air compressing internal combustion engine, characterized in that means are arranged at an intake means of the internal combustion engine for feeding the additive into the intake means, means are provided for metering a supply of the additive to the feeding means, the metering means includes an electromagnetic valve means operatively connected with the feeding means, the feeding means is constructed as an injection nozzle means for injecting the additive into the intake means of the engine, means are provided for controlling an opening and closing timing ratio of the electromagnetic valve means in response to signals representing a load and speed of the engine, means are provided for sensing a rotational speed of the engine and for providing an output signal of the sensed speed to the electronic control means, so that the electromagnetic valve means is controlled in response to both the load and rotational speed of the internal combustion engine, said electronic control means being adapted to provide an output control signal whereby a variable ratio of the opening and closing times of the electromagnetic valve means is produced so that a volume of additive is released which is then injected through the injection nozzle means into the intake manifold means.
An arrangement for supplying an additive to a fuel-injected air compressing internal combustion engine, characterized in that means are arranged at an intake means of the internal combustion engine for feeding the additive into the intake means, means are provided for metering a supply of the additive to the feeding means in response to at least one of a load or rotational speed of the engine, and in that the feed means in constructed as a carburetor and includes a control piston for regulating a feeding quantity of the additive in dependence upon a velocity of intake air to the intake means of the engine, the control piston means includes a nozzle needle for controlling a flow of the additive through the feeding means.
Dependencies are inferred from the claim text.