초록 ▼

A Diesel engine in which a boiler is installed to extract heat from cylinder and air cooling systems as well as exhaust gases to generate steam at a rate proportional to the fuel flow and in which means are provided for introduction of the steam into the cylinder close to top dead center separately

A Diesel engine in which a boiler is installed to extract heat from cylinder and air cooling systems as well as exhaust gases to generate steam at a rate proportional to the fuel flow and in which means are provided for introduction of the steam into the cylinder close to top dead center separately from the fuel, before during and after combustion, so that the steam injection does not disturb the ignition but actively modifies the combustion and afterburning process. The ratio of the steam to the fuel mass is preferably 1:1 to 3:1 and the steam temperature and pressure is as high as allowed by the properties of the materials used in the steam generating equipment. The steam system is adaptable to large Diesel engines and results in strongly reduced fuel consumption and very low pollutant emissions.

대표청구항 ▼

1. A method of operating a compression ignition (Diesel)-Rankine cycle reciprocating engine having at least one cylinder in which fuel is burned, a cooling system, and an exhaust system associated with the cylinder for conducting exhaust gases from said cylinder, said method comprising:removing heat

1. A method of operating a compression ignition (Diesel)-Rankine cycle reciprocating engine having at least one cylinder in which fuel is burned, a cooling system, and an exhaust system associated with the cylinder for conducting exhaust gases from said cylinder, said method comprising:removing heat from the cooling system and from the exhaust gases and employing such heat to generate steam, and introducing said steam into said cylinder, and wherein said steam and said fuel are introduced separately into said cylinder and interact after ignition of the fuel.