Zero emissions pneumatic-electric engine

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention generally relates to engines, and more particularly to zero emissions configurations of pneumatic and electric motors suitable for on-board use in vehicles.[0003]2. Background of the Invention[0004]The reciprocating engine, also often known as a piston engine, is a heat engine that uses one or more reciprocating pistons to convert pressure into a rotating motion. The main type is the internal combustion engine, used extensively around the world in motor vehicles.[0005]There may be one or more pistons. Each piston is inside a cylinder into which a gas is introduced, either already hot and under pressure (steam engine), or that gets heated inside the cylinder by either ignition of a fuel air mixture (internal combustion engine) or by contact with hot heat exchangers inside the cylinders (Sterling engine). When hot gases expand, they can do work, e.g., pushing the piston to the bottom of the cylinder....