| 摘要 |
The invention relates to a turbo-charged diesel engine (1) in which the charge air (12) is cooled by an intercooler (5), embodied as an injection cooler. The water which is introduced into the working substance of the diesel engine in the intercooler is condensed out from the exhaust gas (14), by means of a condenser (6) and a collector (7), and returned to the intercooler once the working substance has been expanded. According to the invention, the engine is started without injecting externally supplied water into the intercooler. The water, which is produced through combustion in the diesel engine, is condensed out from the flow of exhaust gas and returned to the intercooler. When the engine is in operation, the additional water vapour, which is constantly produced as the diesel fuel is burnt, is also condensed out and introduced into the intercooler. The working substance is thus charged with moisture until the water mass flow, which can be separated out from the exhaust gas, is sufficient for the set cooling capacity of the intercooler. The resulting combustion water can also be used for other purposes. This enables internal combustion engines in which water is introduced into the working substance, to be operated without an external water supply. |
