To achieve reliable, well-controlled and rapid diffusion combustion in an air-breathing gas engine, a combustion chamber injection nozzle (12) is proposed, which has a plurality of torch channels (52) for hot combustion gas distributed around its circumfer...

An Elevated Expansion-Ratio Internal Combustion Engine has a substantially standard repeating four-stroke sequence for each cylinder, and the Engine includes for each cylinder: an intake valve, a combustion-gas exhaust valve, and a vapor return valve. A re...

The ignition equipment (11) is screwed (10a) into the cylinder head (10) and has electrodes (13,14) within a pre-chamber (2). The pre-chamber is separated from the principal combustion chamber (1) by a hemispherical wall (12a) which has passages (15). The ...