Alcohol-fueled combustion engine of an otto engine comprises a charging device, in which exhaust gas is led towards exhaust-gas catalyst over a heat exchanger, which is flowed through with the alcohol fuel as process medium

摘要

The alcohol-fueled combustion engine of an otto engine comprises a charging device, in which exhaust gas is led towards exhaust-gas catalyst over a heat exchanger (2, 3), which is flowed through at the opposite side with the alcohol fuel as process medium. The heat exchanger is segmented into two parts, where the first part is implemented as evaporator and the second part allows a dissociation of the fuel. The heat exchangers are placed in a joint housing. The combustion engine enacts with two types of fuel injectors for fluid and gaseous fuel (10). The alcohol-fueled combustion engine of an otto engine comprises a charging device, in which exhaust gas is led towards exhaust-gas catalyst over a heat exchanger (2, 3), which is flowed through at the opposite side with the alcohol fuel as process medium. The heat exchanger is segmented into two parts, where the first part is implemented as evaporator and the second part allows a dissociation of the fuel. The heat exchangers are placed in a joint housing. The combustion engine enacts with two types of fuel injectors for fluid and gaseous fuel (10). The heat exchanger, which decomposes the fuel into synthesis gas is connected over intermediate component with an injector of the combustion engine. Rankine process consisting of high pressure pumps (5) and expander (6) is carried out through both heat exchangers with heat. The fuel of the combustion engine is the process medium of the Rankine process. The excess power of the Rankine process is changed into electrical energy. The chemically changed process medium comprises a synthesis fuel, which consists of hydrogen and carbon monoxide. The synthesis gas is stored in the pressure storage. A common fuel conveying pump conveys the fuel for the combustion engine, where the fuel is a process medium for the Rankine process with reformer. Fluid alcohol fuel separated through condenser of the Rankine process is supplied to the Rankine process to obtain synthesis gas. The charging device is integrated into a vehicle. The synthesis gas has high heat- and calorific value than the alcohol fuel. The combustion engine is a gas turbine. The expander is a piston expander or vane cell expander, which is regulatable in number of revolutions. The pressure and temperature are regulatable during introducing into the expander through regulation of number of revolutions by expander and high pressure pump. The measuring flow of the Rankine process is regulatable through the regulation of the number of revolution of the component. An independent claim is included for a method for operating a charging device of alcohol-fueled combustion engine.