| 摘要 |
An internal combustion engine 1 with turbocharger 2, intercooler 3, supercharger 4, throttle controlled motor generator 5, and motor generator 6 mechanically connected to engine 1 and electrically connected to motor generator 5. Intake charge air reheat exchanger 7, preferably of tube-in-tube heat exchange type, is connected via pipework 8 to an exhaust gas cooling heat exchanger 10. There is a temperature sensor 11 and electronic control unit 12 which vary the speed of the circulating pump 9 to maintain a minimum temperature of the air intake to the engine. The engine has at least one adiabatic expansion engine in the exhaust system. The heat energy from the exhaust gases is extracted via heat exchanger downstream of the adiabatic expansion engine, for preheating the internal combustion engine intake air, and improving thermodynamic efficiency. In a second embodiment, the heat exchanging system is a refrigeration one in which heat exchanger 10 is the heat outputting condenser and heat exchanger 7 the near-freezing evaporator. Heat exchanger 7 can be a new tube-in-tube heat exchanger that doubles up as an exhaust silencer. |
