forms a plurality of combustion chambers not shown within each plurality of cylinders 26 28 each cylinder head 30 32 incorporates at least one of a plurality of intake ports not shown and at least one of a plurality of exhaust ports 34 for ingress and egress to the plurality of cylinders 26 28 the intake ports are connected to an intake system not shown where fresh air mixed with fuel enters the plurality of engine cylinders 26 28 where it is subsequently compressed by a plurality of pistons not shown into the plurality of combustion chambers not shown and ignited a rapid expansion of the compressed fuel and air occurs thereby forcefully moving the plurality of pistons in the opposite direction to the compression stroke the ignition of the compressed fuel and air occurs in an alternating sequence whereby one of the plurality of cylinders 26 transmits a pulse of exhaust gas followed by the transmission of another pulse of exhaust gas from one of the plurality of cylinders 28 in the embodiment shown in fig1 this sequence is in the order of a b c d e f and continually repeats during the operation of the internal combustion engine 20 once the rapid expansion of the compressed fuel.