Thermally insulated turbocharged engine

Claim 1

A thermally insulated engine including a combustion chamber which has portions made of a thermally insulating material and a turbocharger which has a compressor coupled to a turbine drivable by the exhaust energy of the engine, for supercharging the engine, said thermally insulated engine comprising: detecting means for detecting an operation condition of the engine; an electric motor mounted on a rotatable shaft of the turbine; an oxygenating mechanism having an oxygenating film; a first compressor mounted on said rotatable shaft of the turbine for delivering oxygenated air from said oxygenating mechanism to the engine; control means for controlling said electric motor to assist in operating the compressor and controlling the amount of oxygenated air depending on the operating condition of the engine as detected by said detecting means; a cooling unit disposed downstream of said first compressor for lowering the temperature of oxygenated intake air to be supplied to the engine; and a second compressor mounted on said rotatable shaft of the turbine, separately from said first compressor, for supplying air to said oxygenating mechanism, said second compressor delivering air, with oxygen partly removed therefrom, to said cooling unit to lower the temperature of the oxygenated intake air to be supplied to the engine.