Patent ID: 8786114

Claim:
A power supply system, comprising: an internal combustion engine having a pair of opposed pistons and one or more cylinders within which the pistons move in use, the pistons and cylinder or cylinders together forming a combustion chamber or chambers of the engine, and wherein the pair of opposed pistons and the one or more cylinders are each arranged to be rotatable in use about a common axis of rotation, the pair of opposed pistons being further arranged such that combustion in the combustion chamber or chambers of the engine can cause the pistons to oscillate relative to each other about their common rotational axis, and the opposed pistons further being arranged to together comprise a mass-elastic system that is capable of resonance wherein the opposed pistons are coupled to one or more resilient members so as to form the mass elastic system that is capable of resonance; and an electric generator arrangement associated with the pair of opposed pistons for generating an electrical output from the motion of at least one of the pistons in use.