| 摘要 |
PROBLEM TO BE SOLVED: To provide a free piston engine driving linear generator which is high in thermal efficiency. SOLUTION: The generator is provided with the left and right-hands pair of free piston engines 1L, 1R, and a shaft 3 provided with a magnet 4 reciprocating to connect free pistons 2L, 2R of the engines 1L, 1R between each other. The generator is also provided with a linear generation 5 in which the magnet 4 functions as the generator or an electric motor by reciprocating within variable magnetic field by a control unit (control means) 20, and pressure sensors 21L, 21R which detect pressure inside a cylinder in the free piston engines 1L, 1R. It is characterized in that the control unit 20 calculates the amount of change in volume within which the pressure in the cylinder is constant when being burned on the basis of the pressure in the cylinder which is detected by the pressure sensors 21L, 21R, and further controls such actuation of the free pistons 2L, 2R that the change in the volume within the cylinder results in the amount of the calculated change in the volume by controlling the magnetic field of the linear generator 5. COPYRIGHT: (C)2004,JPO
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