MONO-ENERGY AND/OR DUAL-ENERGY ENGINE WITH COMPRESSED AIR AND/OR ADDITIONAL ENERGY, COMPRISING AN ACTIVE CHAMBER INCLUDED IN THE CYLINDER

THE INVENTION RELATES TO AN ENGINE WITH AN ACTIVE CHAMBER, COMPRISING AT LEAST ONE PISTON (2) MOUNTED IN A CYLINDER (1) IN A SLIDING MANNER AND DRIVING CRANKSHAFT (5) BY MEANS OF A SLIDER-CRANK DEVICE (3, 4) AND OPERATING ACCORDING TO A FOUR-PHASE THERMODYNAMIC CYCLE COMPRISING: AN ISOTHERMAL EXPANSION WITHOUT WORK; A TRANSFER - SLIGHT SO-CALLED QUASI-ISOTHERMAL EXPANSION WITH WORK; A POLYTROPIC EXPANSION WITH WORK; AND AN EXHAUST AT AMBIENT PRESSURE, PREFERENTIALLY SUPPLIED BY COMPRESSED AIR CONTAINED IN A HIGH-PRESSURE STORAGE TANK (12), THROUGH A BUFFER CAPACITY, CALLED A WORKING CAPACITY (11), WHICH IS EXPANDED AT AN AVERAGE PRESSURE, CALLED A WORKING PRESSURE, IN A WORKING CAPACITY (11), PREFERENTIALLY THROUGH A DYNAMIC PRESSURE-REDUCING DEVICE (13), CHARACTERISED IN THAT THE ACTIVE CHAMBER (CA) IS INCLUDED IN THE ENGINE CYLINDER, THE CYLINDER VOLUME (1) BEING SWEPT BY THE PISTON AND DIVIDED INTO TWO SEPARATE PARTS, A FIRST PART FORMING THE ACTIVE CHAMBER (CA) AND A SECOND PART FORMING THE EXPANSION CHAMBER (CD).