Free-piston electric current generator
OwnerRoger Valloninventor
Life of this patent
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Abstract
A medium-power, free-piston electric current generator is disclosed in which the piston is slidable in a vertical cylinder open at its top end, with a combustion chamber at its lower end. Induction coils are provided along the length of the cylinder. The piston is formed at least in part of magnetic material and the piston return is effected by the force of gravity. Valves for exhausting combustion gases are provided in the lower part of the cylinder and the opening and closing of the valves is synchronized with the movement of the piston. The cylinder and piston are cooled appropriately. The generator may employ gasoline, heating oil, a gas fuel or explosive substance.
Claims12
A medium-power, free-piston electric current generator apparatus, in which said free-piston is slidable in and in sealing contact with the internal wall of a cylinder, said generator apparatus comprising:
- said cylinder being vertically oriented and open at its upper end and having a combustion chamber at its lower end, induction coils being provided along at least part of the length of said cylinder, means for feeding a fuel-and-combustion supporting gas mixture into said cylinder;
- said free piston being made at least in part of magnetic material, and being movable within the cylinder from a lowermost rest position to an uppermost top dead center position in normal operation, the return stroke of said free piston being effected by the force of gravity;
- valves for exhausting combustion gases being provided in the lower part of said cylinder, and means for synchronizing the opening and closing of said valves with movement of said piston;
- ports located in the upper part of said cylinder above said top dead center position of said piston in normal operation, and means for cooling said cylinder and said piston.
Dependencies are inferred from the claim text.