Abstract: A thermal emission-conversion muffler for reducing the toxic emissions output from the muffler has an inlet pipe, an outlet pipe, and a body extending lengthwise between the inlet and outlet pipes. The muffler further has a plurality of plates disposed within the body, and the plates extend in a sideways direction substantially between the side walls of the body. The plates are of a predetermined length, and adjacent plates are at a predetermined distance from each other. In one plate configuration, the plates are arranged in a substantially stacked manner and are parallel as regards exhaust gas flow passing through the muffler.

Abstract: An intake system (3, 4, 9) for a reciprocating internal combustion engine adapted to control operation of the engine to produce a high level of torque across a wide range of engine revolutions. The intake system is formed by a plenum (3) feeding a plurality of manifold tubes (4) dimensioned so as to improve volumetric efficiency of the engine by inducing ram air effects in a naturally aspirated engine over a wide range of rotational speeds.

Abstract: A reciprocating piston internal combustion engine. The engine includes a cylinder having a cylinder wall, and at least one intake port and at least one exhaust port. At least one intake valve is disposed at a corresponding intake port, and at least one exhaust valve is disposed at a corresponding exhaust port. A piston has a diameter D and is mounted for reciprocal motion of a predetermined stroke length S within the cylinder, the piston further being adapted to assume a bottom dead center position and a top dead center position. The engine further includes a plurality of manifold tubes having an intake manifold tube and an exhaust manifold tube. Each of the manifold tubes includes a plurality of pipes connected end to end and having an end pipe disposed closest to a corresponding port. Each of the pipes has a constant cross-section, the cross section of the pipes increasing incrementally in a direction away from the end pipe.